Help identify my engine, please!

[Dawn mp]

Hello and thanks for having me. I'm embarrassed to say I don't know what horsepower my bmc is, nevermind its registration number. There are no papers with my boat.. I bought it from a Dutch man who didnt seem to know much more than me. Ive found a series of numbers that don't make sense to me....

Here they are..SPE 44 755 619 BMC.

I need to know what the engine is to get a replacement water pump. 

I'm enclosing photos so you can see.

Thank you for reading!

Dawn

[Neil2]

That number you have in the photo is the Simms injector pump I believe.

 

The engine number should be on the crankcase but I once had a BMC 1.8 diesel that didn't have any id numbers on it..

 

I'm sure a BMC expert will be along soon to help.  

[Tony Brooks]

That number is on the side of the injector pump and is cast into the pump housing so that is not going to help much in identifying the engine.
I thing it is a BMC 3.x series engine. Initial feeling BMC 3.4 But I think they made a slightly larger one.

 

It is not an "official" marinistaion because it has a fabricated steel exhaust manifold.

 

You need to get down and dirty with a mirror and torch to look for numbers cast into the side of the block. Also take the air cleaner off and inspect the top and sides of the cylinder head. You may find a ground flat surface with number either stamped into the metal of on an aluminium strip riveted on.

 

I think the 3.4 official marinisation was known as the Commodore and a Google hit suggested ASAP supplies might stock certain parts.

Edited May 10, 2019 by Tony Brooks

[Neil2]

There was a 3.8 as well, usually found in JCB's I believe.  If it's a 3.4 or a 3.8 that must be a big/heavy boat..?

[Bee]

That engine is outside my knowledge but I would just add that you might just be able to find a bearing and a seal for the spindle if you can't find a pump so don't chuck it away and also that belt looks a bit frayed round the edges so it wouldn't hurt to change that. (Bearing supplies or any good power transmission factor may help - just use Google to find a few )

[Tony Brooks]

2 minutes ago, Bee said:

That engine is outside my knowledge but I would just add that you might just be able to find a bearing and a seal for the spindle if you can't find a pump so don't chuck it away and also that belt looks a bit frayed round the edges so it wouldn't hurt to change that. (Bearing supplies or any good power transmission factor may help - just use Google to find a few )

And if you can't face trying a DIY repair talk to Richard of Primrose Engineering for a quote. You would probably have to get the pump to Kenilworth.

[Bee]

https://www.asap-supplies.com/engine-spares-gearboxes/engine-spare-parts/bmc-leyland-land-rover-engine-parts/bmc-3-8-leyland-4-98

Might fit (?)

[bizzard]

T o recondition it yourself you would need a hydraulic or fly press and very likely a centre lathe to skim out the pump body to fit the new 'spindle-bearing-seal unit' as they tend to come in standard sizes and the nearest are usually slightly oversize.  '

[Tony Brooks]

9 minutes ago, bizzard said:

T o recondition it yourself you would need a hydraulic or fly press and very likely a centre lathe to skim out the pump body to fit the new 'spindle-bearing-seal unit' as they tend to come in standard sizes and the nearest are usually slightly oversize.  '

 

Agreed, that is why I would never try to do one myself now I am retired and only have hand tools.

[RLWP]

11 minutes ago, Tony Brooks said:

 

Agreed, that is why I would never try to do one myself now I am retired and only have hand tools.

We send them out to a pump specialist. It's less of a headache for me, and they are quicker than I am so the cost to the customer is about the same

 

Richard

[john.k]

With a Simms inline pump ,its going to be very old......like 1950s.........the BMC diesels are an excellent direct injection engine used in trucks and tractors........and made in 3cyl,4 cyl,and 6 cyl variants.........only slight cloud would be they are wet sleeve,so replacing the sleeves in an engine run without inhibitor will be problematic.................the engine you have was used in the Nuffield tractor,an excellent machine...........the engines also have deflectorized inlet valves,expensive to replace,and a bit prone to wear ,as they dont rotate......................all the water pumps are the same ...truck ,tractor ,and yours.......the water pump has standard deep groove ball bearings,and the bearing shop will likely also be able to match the seal.................beware of British Leyland genuine parts,outrageous prices for for standard items.........Just found my Nuffield manual....your motor is a model OEC ,3 cyl engine......3.4 l,..95x120mm bore and stroke.

[Tony Brooks]

3 minutes ago, john.k said:

With a Simms inline pump ,its going to be very old......like 1950s.........the BMC diesels are an excellent direct injection engine used in trucks and tractors........and made in 3cyl,4 cyl,and 6 cyl variants.........only slight cloud would be they are wet sleeve,so replacing the sleeves in an engine run without inhibitor will be problematic.................the engine you have was used in the Nuffield tractor,an excellent machine...........the engines also have deflectorized inlet valves,expensive to replace,and a bit prone to wear ,as they dont rotate......................all the water pumps are the same ...truck ,tractor ,and yours.......the water pump has standard deep groove ball bearings,and the bearing shop will likely also be able to match the seal.................beware of British Leyland genuine parts,outrageous prices for for standard items.........Just found my Nuffield manual....your motor is a model OEC ,3 cyl engine......3.4 l,..95x120mm bore and stroke.

 

Are you sure? The leak off pipe run suggests to me that there is another injector hidden by the air cleaner. However I agree there are only three exhaust stubs but may the centre one no be siamesed?

[john.k]

You may be right.....in that case its a model OEA.........seems I cant add up either .....anyhoo,its still 95x120 mm.........does that work out to 3.4 for four  cylinders?.......and all the water pumps are the same......pulley is held on with a nut ,keyed shaft ,bearings and spacer loose,and the seal fits in a recess.........as I remember?...the seal is actually a carbon washer ,and fits against the impeller........if the impeller is grooved ,face it on a lathe.............EDIT...the 3.8 is 100mmx120mm,and from memory the timing chain setup is a little different..........or is it?

Edited May 11, 2019 by john.k

[john.k]

Ive just been looking thru the manual...........its a bit hard to follow as its loose leaf ,with later amendments at the back.......anyhoo,its a really good 'un,with masses of nice line drawings,and pictures.,and they are quite common.......Nuffield Tractors /Workshop manual........should be easy to find one at a tractor swap,or on ebay........The truck manuals generally dont have the diesel engines,that was an exta ,.

[Dawn mp]

I'm delighted with the feedback. Thanks so much to you all. Down and dirty I will get today. ?

[john.k]

OK ,a quote from the manual......."the serial number of the BMC 4 cyl. engine is stamped on the top rear corner on the RHS of the cylinder block,below the #4 injector......( the 3 cyl is stamped on the block below the pump drive coupling.)