Servicing JP injectors - who can do it?

[starman]

It's what the title says - can any diesel injection specialist do it or do I need someone who knows about these?

And is there a difference between the high pressure pipe ends that are formed in a sort of cone shape and those which have a sort of washer-like end that is formed to fit the injector union as it's tightened (sorry if that's not very clear).

I did a silly thing - had a very slight leak from a pump/pipe joint and tried to improve it by tightening. Might have known it would only make things worse! New pipe now methinks.

[frangar]

Peter slater injection services have done my spare ones that I brought off eBay ....was reasonably priced and he only replaced what was needed....turns out one was almost brand new!

 

http://www.pslaterfie.co.uk/index.php

 

Sleeman Hawkin did have some high pressure lines in stock as well if that helps.

 

Not sure about the different types....do you mean the difference between the high pressure lines and the spill rail?

 

Cheers

 

Gareth

[starman]

[quote name="frangar" post="1604691" timestamp=

 

Not sure about the different types....do you mean the difference between the high pressure lines and the spill rail?

 

Cheers

 

Gareth

 

No I think there are two ways of making them - basically the traditional way and the latest way!

[frangar]

Ok....well all mine are the trad way and seem leak free!....I did have a weep from the spill rail but ordered a NOS one from Sleeman Hawkin which seems to have solved the issue. Which joint do you think it's leaking from?

 

Cheers

 

Gareth

[Tony Brooks]

The "washer ends" sound like the normal conical ends that have been overtightened over the years. You end u with the "olive" squashed into a flying saucer shape with sharp edges and eventually they simply will not seal.

 

Not done any work on "old thumpers" so happy to be told otherwise.

[Timleech]

The leak off/spill rail originally had flared ends to the copper tube. these flares are often knackered by now. If you're lucky, there might be enough spare length on the pipe to cut off & form new flares. I've also seen a few which have been modified to take compression fittings.

 

Tim

[starman]

The leak off/spill rail originally had flared ends to the copper tube. these flares are often knackered by now. If you're lucky, there might be enough spare length on the pipe to cut off & form new flares. I've also seen a few which have been modified to take compression fittings.

 

Tim

It's the main high pressure pipe I'm talking about Tim. I was under the impression that these could be formed with a conical end or - more easily - a similar one created by what looks like a sort of washer. But maybe I'm wrong.

 

Anyway I t's one of these that leaks at the joint with the pump where I foolishly tweaked it up too much.

[Athy]

How about the Lister specialists Marine Engine Services?

[frangar]

It's the main high pressure pipe I'm talking about Tim. I was under the impression that these could be formed with a conical end or - more easily - a similar one created by what looks like a sort of washer. But maybe I'm wrong.

Anyway I t's one of these that leaks at the joint with the pump where I foolishly tweaked it up too much.

I get where you mean now!

 

Try Sleeman Hawkin with the relevant part no....or search their eBay store. They did have some although they might need to be bent to shape which will need a mini pipe bender as they are steel....and be done carefully!.

 

You could also try MES or Marine Power Services of this parish.

 

If you are really stuck some PTFE wrapped carefully round might get you going again...try not to get any over the end of the pipe though.

 

Cheers

 

Gareth

[starman]

Any more thoughts on part one of the question guys - do I need a Lister specialist to clean & service the injectors or can any injection specialist do it?

[frangar]

As I said....you need someone who is used to older injectors....and more importantly has any parts required such as nozzles etc

 

A CAV specialist would be of more use.

 

Cheers

 

Gareth

[steamraiser2]

Any decent fuel injection specialist should be able to service them, We get them done all the time although most we do ourselves if its a routine service and reset. Let us know if you can't find anyone close at hand.

[monkeyhanger]

Any more thoughts on part one of the question guys - do I need a Lister specialist to clean & service the injectors or can any injection specialist do it?

No-- any competent diesel specialist should be able to do it. I have used my local diesel specialist to clean and set injectors, make up injector pipes and rebuild my injector pump. I am in East London. Where are you, please?

[starman]

No-- any competent diesel specialist should be able to do it. I have used my local diesel specialist to clean and set injectors, make up injector pipes and rebuild my injector pump. I am in East London. Where are you, please?

On the southern Oxford right now. I'd like to sort the leaky pipe out soon-ish but the injectors are my spare set so there's no immediate rush.

As I said....you need someone who is used to older injectors....and more importantly has any parts required such as nozzles etc

 

A CAV specialist would be of more use.

 

Cheers

 

Gareth

Cheers Gareth - I reckon I'll try Slaters to renovate the pump this winter (if I decide I can afford it!)

[RLWP]

How about the Lister specialists Marine Engine Services?

 

We send them out. You could try Rose Narrowboats, they have just set up to do this sort of work

 

Richard

[junior]

Whereabouts on the southern Oxford? Johnno at UCC Braunston did the injectors on my PH2W. You've also got the other guy in Daventry, can't for the life of me think of the name right now, Tony somebody???...

Edited July 12, 2015 by junior

[starman]

Whereabouts on the southern Oxford? Johnno at UCC Braunston did the injectors on my PH2W. You've also got the other guy in Daventry, can't for the life of me think of the name right now, Tony somebody???...

I'm right at the bottom but I'll remember him. Thanks. PS the Tony is Redshaw.

[George94]

I had a leak in a spill pipe, or so I thought. After all sorts of kerfuffle I found that it was the injector itself that was leaking. The local specialists, CJ Diesel in Isleworth, sorted it out.

 

As others have said, any injection specialists should be able to sort out the problem, and yes, you can have a more modern fitting attached to the injector.

[by'eck]

The leak off/spill rail originally had flared ends to the copper tube. these flares are often knackered by now. If you're lucky, there might be enough spare length on the pipe to cut off & form new flares. I've also seen a few which have been modified to take compression fittings.

 

Tim

 

When I recently fitted new injectors to my JP2, I noticed the spill rail pipes had a female taper. Unions to adapt to matching male taper were fitted to old injectors, so I just swapped them over.

[bag 'o' bones]

Servicing and old style injector is not rocket science but you need the proper kit. I dismantled and cleaned an old Bryce Berger injector off a Petter AVA1 some years ago supervised by a RAF Cosford R.E.M.E. technician. It was surprisingly straightforward.

 

Other than a general clean and check of the components to remove sludge and carbon build up the only other important bit was to check the injection pattern and release pressure on a pop tester.

 

If the injection pattern was out then it would have required either an ultrasonic clean or if unlucky - a new needle and nozzle.

 

Any injector specialist will have the necessary experience to do the job I would have though, old injectors are very simple devices.

 

I think the biggest problem for very old equipment is the lack of spares rather then lack of knowledge to service them.

[RLWP]

I think the biggest problem for very old equipment is the lack of spares rather then lack of knowledge to service them.

 

Unfortunately, it's the other way around. Our local vehicle diesel specialists have no idea what to do with old pumps and injectors. Last time they had to send them off! You need to find someone prepared to work with older equipment which is why I pointed out Rose Boats have set up for this. They have a whole set of kit for the job now

 

Spares don't seem to be a problem - yet

 

Richard

[Tony Brooks]

 

Unfortunately, it's the other way around. Our local vehicle diesel specialists have no idea what to do with old pumps and injectors. Last time they had to send them off! You need to find someone prepared to work with older equipment which is why I pointed out Rose Boats have set up for this. They have a whole set of kit for the job now

 

Spares don't seem to be a problem - yet

 

Richard

 

Did you notice BoB failed to mention testing or back leakage - kind of proves what you say. Now I know what REME apprentices were taught up to 1988 because I did it so either it was forgotten or ignored. However I rather agree with his sentiments though.

[bag 'o' bones]

 

Did you notice BoB failed to mention testing or back leakage - kind of proves what you say. Now I know what REME apprentices were taught up to 1988 because I did it so either it was forgotten or ignored. However I rather agree with his sentiments though.

I should perhaps elaborate, I was not a REME apprentice I was on a college two week work experience placement. The workshop was not a training facility, but a field equipment maintenance garage with basic test facilities from what I can remember.

[Tony Brooks]

I should perhaps elaborate, I was not a REME apprentice I was on a college two week work experience placement. The workshop was not a training facility, but a field equipment maintenance garage with basic test facilities from what I can remember.

 

My point was that the training for REME apprentices and adult entry would be similar and I know what they were taught. You check back leakage on the basic pop tester plus the second hand on your watch although REME had ticky timers rather than watches. Actually you would get a fair result simply by counting seconds.

[starman]

Injector pipe replacement not as simple as it should have been! Got one made, fitted it, wouldn't tighten up properly so leaked like hell.

Checked ends - quite different. Turns out they'd fitted the "modern ones" which had been fine on everything they'd used them on going back to the sixties.

They will solder a new pipe with right ends - not much use as they in Ipswich and I'm in Oxfordshire.

Anyone know a place in Banbury (next town) that could do it?