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BMC 1.5 Crankshaft Bolt


MrC

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UMM, not so sure about the idea of using used rocker gear for a boat that might not be just a local Panamanian coastal cruiser, as the majority of yachts visiting Panama are transiting the ditch bound for the Pacific, and that monster pond has routes that can involve a lot of time becalmed, or sail flogging. That means the main engine really must not let you down, as it can result in a nightmare with a boat stuck in some Gawd foresaken Frogland controlled South Pacific island.    Fedex or UPS will charge you over 100 dollars for a small padded envelope, plus 80% VAT, plus customs handling, (Expensive bottle of French wine), and an inspection aboard fee to make sure you did not sell the part to the locals, if you tried to get a yacht in transit deduction. The whole process can take over a month before you find some chump has sent you the wrong part, or the contents of the box has been stolen en route. 

 

  If you turn up late in the Typhoon season, (There is no real safe out of season period during an El Nino event), then get serious engine trouble that causes a significant delay or the 6 month VAT time limit is exceeded, you are in big trouble, and might have to abandon your pride and joy, particularly if you don't have a French passport, even in incredibly expensive Tahiti. 

 

One point about looking for BMC parts is that companies like Classic Tractor Spares stock a lot more than the 16 items on the first Leyland 1.5 page, so always use the search box, AND make sure you know if your Thornycroft version is the same as regards some non major block parts.

  If you are looking for a complete good used engine, try Marines Enterprises Ltd, who have still not updated their web site.

Marine Enterprises Ltd

 

BUT, they are very busy and ask for money up front. Their reputation is first class except for late deliveries, so do not pay up front, just go there, (The Google maps has an error, as you need to approach from the opposite side to that marked, unless you like walking the last part), after agreeing terms in a flat bed van and after a swift test run and load up, pay the cash or direct transfer in the office. 

 

The BUKH 24 is far tougher and more reliable than any other old non close tolerance or modern marine diesel, BUT it is very heavy. The 24 weighs the same as a 35hp BMC 1.5D. They do make suck and spit, in addition to more reliable keel cooled, (Plates, pipes or even a fan cooled radiator), versions. When you search engine parts sites, do check if Thornycroft 1.5D is listed if you are looking for some non block parts.

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I don't know if the petrol B series engine ever got to use the pressed metal and spot welded rockers later A series engines used and if they did I would agree they are not, perhaps, a sensible option. The forged or cast rockers are a totally different matter and as the valve forces on both petrol and diesel engines will be similar I can see no reason the rocker gear from a petrol engine will not be just as serviceable in a diesel as the diesel one. They are probably the same thing, but as I have never compared both I can't be absolutely certain.

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Hi everyone. First of all let me thank you all for such a fantastic welcome to your forum. I didn't know what to expect but this is an amazing amount of great information. At first glance it looks like I have several options and I'll explore them all over the coming days. Perhaps there will be a solution waiting for me when I arrive in the UK. Fingers crossed. As anyone who has a BMC diesel in their boat can tell you the option of changing to something more modern is a constant nagging voice which gets louder every time the motor develops a problem. However, I've never been a fan of throw away culture and have "enjoyed" working on older bikes, cars etc over the years especially those that were designed to be maintained and rebuilt when the time comes. Between a limited budget, availability of alternatives in Panama and "better the devil you know" I think I'll stick with what I have for the moment and see how I get on. I have no plans to head across an ocean any time soon and will be happy if I'm able to hop along the coast to the San Blas islands one in a while. It's only a ten hour sail or motor (usually the latter) and I'm in one of the most beautiful cruising grounds. After reading your advice I feel much better about my chances of making that happen. Thanks again.

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Will do. Meantime the strip down continues. Pistons out with the good news that big ends look fine, pistons and bores likewise. I'll check ring wear but don't expect to see much there. I had started this rebuild expecting pump/injectors to be the source of my lack of power but it's looking likely that everything was down to the rocker gear being starved of oil and the resultant wear to the rockers causing valve clearances so big the valves barely moved. The remarkable thing is how long it's taken to get like this. Something like 15 years! A testament to how forgiving these old motors are.

 

Edited by Jim H
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22 hours ago, Tracy D'arth said:

Good luck getting a copy off Roger!

I'm going to ask all of the main suppliers if they can send a copy of the BMC 1.5 and 1.8 parts list, and then say that we could add it to this web site as a permanent post, BUT with a free advert in the form that simply quotes who supplied the download of the parts lists. 

  I will also point out the human suffering and grief caused by incorrect orders that occur because of confusion over which part the buyer wanted, and the scenes of mayhem in the parts departments and accounts, when some buyer sends a significant order back and then starts ranting on about the terrible time they are having  getting a refund. So it is in every BMC owners and parts suppliers interest to reduce the suffering and persuade one of the gang of 4 to send the download.

 

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On 25/03/2022 at 18:09, Jim H said:

Will do. Meantime the strip down continues. Pistons out with the good news that big ends look fine, pistons and bores likewise. I'll check ring wear but don't expect to see much there. I had started this rebuild expecting pump/injectors to be the source of my lack of power but it's looking likely that everything was down to the rocker gear being starved of oil and the resultant wear to the rockers causing valve clearances so big the valves barely moved. The remarkable thing is how long it's taken to get like this. Something like 15 years! A testament to how forgiving these old motors are.

 

Hi Jim,

  I heard the San Blas Islands are real nice, and some of the fishing around Panama is good. One thing that stunned me was the amount of debris in the water as you approach Colon, with an incredible number of flip flops from 50 miles out. I got stuck becalmed along with another larger yacht just 20 miles short for nearly a day due to the chances of getting a fishing net or line around the prop being a tad too high. On the other side there were an incredible number of long line sets for about the first 100 miles after leaving Balboa, and a lot of eagle rays jumping around.

 

Good the pistons and bores look good, but what does the actual head like like ?? I'm kind of wondering what a big error in the valve clearances would do to the valve seating, Tony et al might know if the head can be damaged by big valve clearance errors.

 

Calcutt seem to have the rockers:

 

ROCKER ASSEMBLY BMC 1.5 & 1.8 - Calcutt Boats Ltd (calcuttboatsshop.com)

 

I did take a look at sites in the US that stock BMC parts, but none of them looked any good. If you look at You Tub, there are number of good video clips of an engine rebuild, and there is also supposed to be a Facebook page, BUT I CANT IT, SO ANYONE KNOW WHERE IT IS ?? Cos I'm going to try and find id some BMC fan has a real parts list!

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13 hours ago, TNLI said:

Hi Jim,

  I heard the San Blas Islands are real nice, and some of the fishing around Panama is good. One thing that stunned me was the amount of debris in the water as you approach Colon, with an incredible number of flip flops from 50 miles out. I got stuck becalmed along with another larger yacht just 20 miles short for nearly a day due to the chances of getting a fishing net or line around the prop being a tad too high. On the other side there were an incredible number of long line sets for about the first 100 miles after leaving Balboa, and a lot of eagle rays jumping around.

 

Good the pistons and bores look good, but what does the actual head like like ?? I'm kind of wondering what a big error in the valve clearances would do to the valve seating, Tony et al might know if the head can be damaged by big valve clearance errors.

 

Calcutt seem to have the rockers:

 

ROCKER ASSEMBLY BMC 1.5 & 1.8 - Calcutt Boats Ltd (calcuttboatsshop.com)

 

I did take a look at sites in the US that stock BMC parts, but none of them looked any good. If you look at You Tub, there are number of good video clips of an engine rebuild, and there is also supposed to be a Facebook page, BUT I CANT IT, SO ANYONE KNOW WHERE IT IS ?? Cos I'm going to try and find id some BMC fan has a real parts list!

Thanks for the Calcutt link. I was going to try them on Monday. I wasn't getting any luck elsewhere but on the plus side I'm pretty familiar with the sites suggested earlier and what they offer. I turned up another tractor site called Charley and Sons (charnleys.com) that offer a fair number of engine parts. The tractor sites are certainly a lot more competitive than the marine ones...

I'm not expecting to find anything tragic with the valves since they are being lifted later and dropped earlier than normal so will be cooled more than normal the problem may be with the angle the rockers have with the stems. I'll fine out soon enough. The pistons and bores look good and the rings are a bit out of tolerance so I might stick a new set in. Plenty to consider.

As to your Panama experience I agree there is always a fair bit of debris in the water on the Atlantic side. The wind blows everything to this end of the Caribbean which is a pity. It affects the Islands especially.

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Thanks for the info on CHARLEY AND SONS, as that's a new one to me. One thing worth doing is to make sure you know if your BMC 1.5D is a MK1 or 2, which should be possible to figure out from the engine number decode document I attached to a previous post. It would also be useful to know which systems and associated parts are different between the Thornycroft BMC 1500D and other marine diesel versions. 

 

Not sure what the exact differences are between an early and late model BMC 1500D, (The car sites often use 1.5D, and even use Leyland for some reason), but the only ones I can find are that the crankshafts have a different end of some sort, and it might also relate to the presence of a torsional vibration damper. The lock tab for flywheel is also different.

 

QUESTION FOR TONY ET AL:

The bottom end rebuild engineer has asked for, "Lock tabs for flywheel bolts", BUT I'm not sure if he means a single lock tab for the flywheel itself, as I already have one for a BMC 1.5, which ASAP describe as for an early model, (I presume they mean an MK1). 

SO WHAT DO YOU THINK HE IS ASKING FOR ?? 

 

I hope I really do have a MK1 (Early model) BMC 1500D, cos the MK2 lock tabs are out of stock with all of the companies I've used! I could work out which one I have from the engine number, BUT the engineer working on my engine is too busy to answer e mails, so I do not have that number at present.

 

SUGGESTION FOR THE BMC FORUM OWNER OPERATOR

It's fairly normal for a technical forum to have a locked first page thread. That thread normally contains answers to obvious questions, like where can I buy parts, or a maintenance manual, and which oil do I use ? (The correct answer is to show a copy of the original list of recommended oils and temperature ranges). It would also be good to clarify which cars or tractors were fitted with a BMC 1.5D. No one has to go to the trouble of writing the Q & A section, as it can be copied from members posts.

 

 

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Tractor Spare Parts - Nuffield, Leyland, Marshall, McCormick (charnleys.com)

 

Very good site, although I'm amused they also list the tensioner as out of stock, luckily I've found one already.

 

Their search engine, (Parts page), is real good, as you can just type in BMC 1.5D and the parts name, and 9 times out of 10 finds the part, so no need for checking long lists of Leyland parts. Once you find the part the description makes it obvious if it is for a 1.5D and apart from a good picture, some even remind you of the torque required to install it.

Edited by TNLI
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Big surprise, but it looks like you can buy a new parts book!

 

AKM43 LEYLAND TRACTOR PARTS BOOK - Charnleys Tractor Parts

 

I've used the enquiry form to question what exactly is in the book as regards a list or diagram of the BMC 1.5D and its parts numbers.

Edited by TNLI
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16 hours ago, TNLI said:

Tractor Spare Parts - Nuffield, Leyland, Marshall, McCormick (charnleys.com)

 

Very good site, although I'm amused they also list the tensioner as out of stock, luckily I've found one already.

 

Their search engine, (Parts page), is real good, as you can just type in BMC 1.5D and the parts name, and 9 times out of 10 finds the part, so no need for checking long lists of Leyland parts. Once you find the part the description makes it obvious if it is for a 1.5D and apart from a good picture, some even remind you of the torque required to install it.


 

I was in Charnleys buying some BMC parts just this afternoon and was assured by the gentleman who served me that if the parts I purchased were to prove surplus to requirements that I could return them for a refund at any time (provided that they were unused and resalable).  Its not often these days that you get that kind of customer service so I can highly recommend this company - and their very helpful & friendly staff.

 

(For anyone else looking to purchase a complete Timing Chain Tensioner, and I know they are thin on the ground at the moment, they are due in at mid April I was informed, but due to global supply problems, "watch this space":excl: :unsure:)

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31 minutes ago, Rincewind said:


 

I was in Charnleys buying some BMC parts just this afternoon and was assured by the gentleman who served me that if the parts I purchased were to prove surplus to requirements that I could return them for a refund at any time (provided that they were unused and resalable).  Its not often these days that you get that kind of customer service so I can highly recommend this company - and their very helpful & friendly staff.

 

(For anyone else looking to purchase a complete Timing Chain Tensioner, and I know they are thin on the ground at the moment, they are due in at mid April I was informed, but due to global supply problems, "watch this space":excl: :unsure:)

Thanks for confirming that, and the only thing I don't like is that if you purchase online, they don't seem to send a confirmation e mail, which most online sales shops do. Do you have the Leyland light weight parts book, as I'm still trying to find out if it has a full set of BMC 1.5D parts numbers. I've asked about it through their enquiries form, but would like confirmation from a forum member.

 

Edited by TNLI
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20 minutes ago, TNLI said:

Thanks for confirming that, and the only thing I don't like is that if you purchase online, they don't seem to send a confirmation e mail, which most online sales shops do. Do you have the Leyland light weight parts book, as I'm still trying to find out if it has a full set of BMC 1.5D parts numbers. I've asked about it through their enquiries form, but would like confirmation from a forum member.

I have used them online and have received an confirmation email for my order, so I suggest you check your junk mail folder.  However I am a 30 minute drive away from them so no longer order online and they have a "walk in" shop, - cuts down on the supply delay - I am often impatient!:lol:.

Sorry, I do not have the "Leyland light weight parts book" you speak of so I cannot comment, but it would be interesting to view!

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On 29/03/2022 at 01:39, Rincewind said:

I have used them online and have received an confirmation email for my order, so I suggest you check your junk mail folder.  However I am a 30 minute drive away from them so no longer order online and they have a "walk in" shop, - cuts down on the supply delay - I am often impatient!:lol:.

Sorry, I do not have the "Leyland light weight parts book" you speak of so I cannot comment, but it would be interesting to view!

Finally got the following book; Leyland Lightweight Tractor Range for Tractor Models BMC MINI 4/25 and 154

 

It's good in terms of the diagrams and parts numbers, BUT the 1500D pages are not in a logical order and the binding makes it tricky to photo copy single pages. Thinking of cutting it apart at present to make a dedicated BMC book.

Also Found this on Fleabay:

BMC books.jpg

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You know some days I could kick myself for ordering an engine or related part, and then finding a cheaper or better version the following day!

 

The Leland Lightweight Tractor Range softback booklet is less than ideal cos a normal binding makes the pages tough to copy, it's also irritating to use, as you can't unfold it and put it down on the desk etc. This version, (I suspect it has the same or similar contents), is better:

 

AKD4339B - BMC Mini/Nuffield 4/25 Tractor [AKD4339B] - £32.00 : Tractor Spare Parts, Nuffield, Leyland & Marshall tractor spare part specialists

 

That is the price without VAT or shipping, so slightly cheaper than I paid.

 

Now for a quick rant about this forum and BMC's in particular. When I first decided that I would stick with the same type of classic diesel as my sunken lifeboat had when I purchased it from the London boat mob, I did get a certain amount of very negative feedback. Some of that feedback was in the form of statements like, "You can't find all of the parts", which is total rubbish. 

 

For the point of view of a new boat owner, or even old BMC fan, this forum does not have any form of introduction page, Q & A page or an obvious locked thread that gives you all the links or information to cover the following popular issues for Newbie or Wanabee BMC owner or operators. What is missing is the following:

 

1/ Links to an operators manual, service schedule and the very important maintenance manual.

 

2/ Link to the parts manual, preferably a copy that does not have tractor systems or petrol engines in it.

 

3/ A copy of the original list of recommended oil and the table of associated temperature ranges.

 

4/ A list of all of the different gearboxes, (With pictures),what the difference is between an early and late model BMC 1500D, AND a link or copy of the block number decode I posted.

    Note: I'm not entirely sure myself, BUT if you decode the block number it will help ID the exact model.

 

5/ Recommended parts companies.

 

6/ A simple summary of why incorrectly maintained or rebuilt classic diesels start to rattle, smoke or fail and why it's a daft idea to think than a HP fuel or lift pump that is over 50 odd years old, is not going to contaminate the engine oil.

 

Now the order of that list is definitely not correct, as the list of part companies might be nearer to the top, but I'm out of time before I need to sort out my growing list of bottom end rebuild parts. 

I would note that I've never seen or been informed about a real good engine related forum, that did not start with an obvious technical summary, Q & A or simple locked thread or page providing all the answers to the 10 most common questions or problems. Without such an introduction, engine forums degenerate into irrelevant posts, (I'm guilty of a few), off topic rants, (Yes a few more from myself), and finally the dreaded rude exchange of rants that finishes up with a nasty handbags at dawn incident. 

 

 

 

 

 

 

 

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Ha, ha. Yes to all of that. You do realise that if you're that passionate about these points someone is going to give you the job of making it happen...

Which might not be a bad idea since someone coming to a forum such as this does tend to ask all the common questions which have probably been answered numerous time before but get lost in the threads of time. As to the gathering of info I have photographed all my printed stuff and am happy to post it where it can be of some use. It's all old so I maybe covering familiar ground also but for what it's worth I have a parts list from 1995 for the 1.5 and 1.8 BMC diesels from AMC. No pictures or diagrams but the numbers appear to be original BMC ones. I also have an original Thornycroft operation manual for the T90 (marinised BMC 1.5 diesel) and BMC workshop manual for the engine but I think that's easy enough to find on line. 

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6 hours ago, Jim H said:

Ha, ha. Yes to all of that. You do realise that if you're that passionate about these points someone is going to give you the job of making it happen...

Which might not be a bad idea since someone coming to a forum such as this does tend to ask all the common questions which have probably been answered numerous time before but get lost in the threads of time. As to the gathering of info I have photographed all my printed stuff and am happy to post it where it can be of some use. It's all old so I maybe covering familiar ground also but for what it's worth I have a parts list from 1995 for the 1.5 and 1.8 BMC diesels from AMC. No pictures or diagrams but the numbers appear to be original BMC ones. I also have an original Thornycroft operation manual for the T90 (marinized BMC 1.5 diesel) and BMC workshop manual for the engine but I think that's easy enough to find on line. 

I would be interested to read the Thornycroft operating manual, to see how it compares with an old BMC one. The workshop manual is easy to find, but a

parts numbers list would be a real good thing for anyone involved in more than routine maintenance. The issue is where do you post it, so it would be good to start a new thread titled Introduction or similar. What type of gearbox does a T90 have ??

 

PART 2: LOCK TAB PARTS TROUBLE

I can't seem to find lock tabs for the big end bolts that the bottom end rebuilder wants. They are not shown in the parts diagram for what the parts lists labels as, the SCREW-CAPS because the end of the bolt is slotted. The part number of the screw caps/big end bolts is 51K 1388, but no idea of the lock tab number or even what it looks like.

  Anyone that has rebuilt the crank up know what they look like, or where to get them. I also like the idea of fitting new screw caps/big end bolts, BUT the crank company just want the lock tabs. ASAP and Calcutt don't stock them, and I've sent messages to the 2 tractor parts companies. 

 

Also I'm a bit confused about the, "Lock tab cam sprocket", request. Is this the same as the lock tab camshaft gear, as I already have one of those BMC-2A759, looking at the diagram I think it is, BUT the diagram of the timing chain, tensioner et al, seems to be missing. The booklet includes diagrams of petrol engines, but it does not say that one of them has the same timing chain, anyone have the parts diagram for the timing chain ??

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Big end lock tabs. A length of steel maybe 6mm wide that fits around the big end cap between the two bolt holes. The steel strip then becomes wider so at either end there is plenty of meat around the holes drilled in the strip.  The circular parts on the ends are extended to ovals so there is enough strip to bend up against the bolt head:

image.jpeg.f3d80efd1d05f47f9b1106326d8f53f8.jpeg

 

This one is from a 1500 CC petrol MG but the diesel ones are probably the same.

 

Cam  sprocket lock tab. Just like  a very large round washer except there is a small pair of cuts on the outside of the inner hole and the small tongue of metal so formed is bent back at 90 degrees. The tongue then locates into the keyway in the sprocket so the "washer" can't twist round. Part of the "washer" is then bent up against the camshaft nut.

 

image.jpeg.71f4de41b8de5329af927b22814409f6.jpeg

 

Again a MG petrol engine part but I think it should fit a diesel.

 

I have grave doubts about your engine re-builder as they seem to not have a clue as to sources.

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4 hours ago, Tony Brooks said:

Big end lock tabs. A length of steel maybe 6mm wide that fits around the big end cap between the two bolt holes. The steel strip then becomes wider so at either end there is plenty of meat around the holes drilled in the strip.  The circular parts on the ends are extended to ovals so there is enough strip to bend up against the bolt head:

image.jpeg.f3d80efd1d05f47f9b1106326d8f53f8.jpeg

 

This one is from a 1500 CC petrol MG but the diesel ones are probably the same.

 

Cam  sprocket lock tab. Just like  a very large round washer except there is a small pair of cuts on the outside of the inner hole and the small tongue of metal so formed is bent back at 90 degrees. The tongue then locates into the keyway in the sprocket so the "washer" can't twist round. Part of the "washer" is then bent up against the camshaft nut.

 

image.jpeg.71f4de41b8de5329af927b22814409f6.jpeg

 

Again a MG petrol engine part but I think it should fit a diesel.

 

I have grave doubts about your engine re-builder as they seem to not have a clue as to sources.

 

Thanks Tony, the engine rebuilder has opted out of charging 40 quid an hour to surf the internet and then allowing the accountant to add another 50% to the cost of the parts, so with classic diesels it's cheaper to buy the parts yourself. The big issue is that some of the lock tabs are out of stock. 

 

   I've got an order in with Calcutt for the big end lock tabs, and I've already got the cam sprocket lock tab from ASAP. The 6 lock tabs for the bell house mounting are or order with Boulters and supposed to arrive early next week. 

 

It's a real pain trying to use 5 different parts companies to source the parts, it's a pity the tractor companies don't combine and ASAP either improve the amount of stock they have, or leave it to Calcutt, that way I would only have to deal with 2 companies. 

 

One question for you is about the missing parts diagram for the timing chain, as it might be it's the same as a diagram one of the other petrol engines. Some of the parts diagrams and lists are for the BMC 1500 or 1622, but none have diesel included. Rather odd to have a parts booklet without the timing chain section.

Edited by TNLI
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27 minutes ago, TNLI said:

 

Thanks Tony, the engine rebuilder has opted out of charging 40 quid an hour to surf the internet and then allowing the accountant to add another 50% to the cost of the parts, so with classic diesels it's cheaper to buy the parts yourself. The big issue is that some of the lock tabs are out of stock. 

 

   I've got an order in with Calcutt for the big end lock tabs, and I've already got the cam sprocket lock tab from ASAP. The 6 lock tabs for the bell house mounting are or order with Boulters and supposed to arrive early next week. 

 

It's a real pain trying to use 5 different parts companies to source the parts, it's a pity the tractor companies don't combine and ASAP either improve the amount of stock they have, or leave it to Calcutt, that way I would only have to deal with 2 companies. 

 

One question for you is about the missing parts diagram for the timing chain, as it might be it's the same as a diagram one of the other petrol engines. Some of the parts diagrams and lists are for the BMC 1500 or 1622, but none have diesel included. Rather odd to have a parts booklet without the timing chain section.

I think the 1622 petrol engine was a single row chain.

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11 minutes ago, Tracy D'arth said:

I think the 1622 petrol engine was a single row chain.

I think so too but I bet the camshaft thread and shaft where the sprocket mounts will be the same as the 1.5 diesel so the lock tab is  very likely to be the same.

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1 hour ago, Tony Brooks said:

I think so too but I bet the camshaft thread and shaft where the sprocket mounts will be the same as the 1.5 diesel so the lock tab is  very likely to be the same.

There are a few pages with parts diagrams where the title is 1500cc petrol and diesel, so I suspect the missing page is a failure to label a page correctly. 

 

Request for Jim H who said he has a name vs parts number list, but not the diagram:

 

Any chance of posting the page relating to the timing chain, crank sprocket, cam shaft sprocket and tensioner,. Along with the numbers for the associated crank pulley and cam gear lock tabs.

One irritating thing about the BMC/Leyland parts web sites, maintenance downloads and parts lists, is that they use different terminology, for example they use gear instead of sprocket, lock washer instead of tab, and worst of all, screw, (Machine screw), instead of bolt.  

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The parts book you require is BMC Mechanical Parts List AKD 3452 for the Light Commercial Vehicles Type J2/152  or AKD 3492 which is the J4 type. These publications show both 1500cc and 1622cc petrol plus 1500cc diesel engine part numbers . They are usually available on Ebay.

I have both publications and from the information contained therein I can confirm that the camshaft locking washer is part number 2A 759 which is the same for both petrol and diesel engines and also fits the MGB 1800cc engine . I've also got a MGB rubber bumper model parts book albeit a reprint the number of that is AKM 0037 

The 1.5 diesel big end locking tabs / washer is part number 12H 339 it is a different number to the petrol engine and the 1800 MGB doesn't appear to have locking tabs/washers. 

The timing chain part number for the diesel is 12H 196 or 2H 735  the petrol engines have a different part number .

 

 

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Just looked on Ebay and there is a BMC J2 parts list albeit with the publication  number AAK 9873 with a starting price of £9-99p plus £3-99 postage,  that currently has received no bids . The item number is 115323267909. . 

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