Lister Petter LPWS

[kalidor]

Has anyone changed injectors on a LPWS marine 3 cyl eng. Is there anything to watch out for.

In the manual it recommends an extraction tool, is this necessary? Also the leak off pipes look as though they are screwed on but this is strange as the leak off pipe is braised onto a nut for each injector.

Any help would be appreciated.

[n.b.Goldie]

Me too, I would like to know the answer to this, can anyone help? Martyn1, ChrisB, Bizzard, Tony Brooks etc.?

 

Regards

Ditchdabbler

[RLWP]

The extraction tool is essentially a long reach socket

 

Short answer is injector pipes off, spill rail nuts off*, spill rail off, injectors out

 

Refit with new seals

 

Richard

 

*do make sure that you have that kind of spill rail

[kalidor]

Thanks for your reply but looking at the bleed off pipe it is brazed to the nut thus stopping you from turning the nut without shearing the pipe.

[RLWP]

There's a nut on top of that. You've got the injector pipe nut, then the hold down nut, then the spill rail with the hex body. This spill rail?:

 

 

You don't have to turn that, you remove the nut above it

 

Richard

Edited June 24, 2014 by RLWP

[bizzard]

And the spill pipe hex's will need holding still with another spanner whilst undoing the top part for fear of it all suddenly moving and busting the spill pipes. Same on reassembly.

Edited June 24, 2014 by bizzard

[kalidor]

Hi, Thanks that's great. Very helpful. I'll get stuck in to the job next week.

Swift reply appreciated.

 

[RLWP]

So, why do you want to take your injectors out?

 

Richard

[kalidor]

I have 4000Hrs on them, no excessive smoke except when I leave a lock, so I thought I'd just give them a check.

 

[Tony Brooks]

I doubt that you can do anything more than look at them. It needs an injector tester to check them properly and then they may need further work or parts. Take them to a specialist for testing & overhaul.

 

You have your answers now so no need to send me photos (asked in another place).

Edited June 25, 2014 by Tony Brooks

[kalidor]

How many hours would you recommend? Talking to the engineer who does the hire boats in our marina they take them out yearly. I have a company in stockport that does them for about £30 each.

Edited June 25, 2014 by kalidor

[RLWP]

£30 is a good price

 

Richard