Hello.
I hope this is the best place for this. My vehicle is stuck on my drive after changing the injector pump shaft seal.
It's a 1983 DW straight six, non turbo diesel engine.
Here is a video of what it does. It will just keep doing this over and over again.
drive.google.com/open?id=1X_L4-HOMlsqrHJ5mC4woUdN_3d7ajwC9
When it does fire for the second or so, it sounds OK. I know it's only for s split second but it sound like all cylinders (but maybe not??)
I've not had it long. It's a VW LT28d camper.
It had been sat for maybe 3 years in dry storage before I bought it last month. It wouldn't run when I collected it but was running fine before it was parked up. Once I got it home I put a little diesel in, primed the injector pump (IP) and turned it over.
It ran after a little cranking and drew the fuel up the pipes.
It idled fine but with quite a bit of white smoke.
I noticed bubbles coming up the pipe from the fuel filter. I fixed this (new filter and checked incoming connections)
It still ran fine after this but the fuel would draw back towards the filter (and beyond) once the engine was stopped. This required much cranking again every time to get the fuel back up to the pump and then start.
So, I tracked this down to air drawing in via the shaft seal on the IP. I bought a new seal and set about changing this.
I did this without removing the IP. This is what I did:
Set the flywheel to TDC (looking through an access slot below the IP in the bell housing) The flywheel has a thin line and a zero that lines up with a point of the bell housing.
This also lined up the marks on the IP drive pulley and the housing. All this seemed OK.
With all this lined up, I locked and removed the IP pulley and belt, pulled the old seal out, put the new one in, replaced the pulley and belt and tried to start it.
The fuel eventually came up the pipe and now doesn't draw back, which is great but ... it just won't run now.
As far as i know, nothing was moved during this (flywheel or IP shaft) and all the timing marks seem to line up the same as before i began but the engine just won't run (as per the video above)
I've checked that each injector has fuel by cracking open each injector line on top and all seems OK. Cutoff solenoid seems fine (and pretty new). I've replaced all of the return pipes on the injectors. All this was done before the shaft seal change and it ran OK but with excess air drawing in.
Is there anything I'm missing? Could the IP timing be out? Could eliminating the excess air have affected something else? Airlock somewhere? Or something else?
I'm just stumped and just don't have the expertise to diagnose this. I've tried everything i can think of but it's still stuck on my drive. I just need it to run properly so i can move it.
Any help or suggestions would be very greatly received.
Thanks very much in advance.