Got my conversion completed about a month ago but since then havent managed to get it started (only had about three days of trying though due to work). I'm wondering if anyone can look through and give me any ideas as this setback has kind of dented my previous confidence (manliness)...
1994 LWB syncro with 64K miles on original engine etc.
converted with parts from aja van, turbo in good condition (v little play in spindle) 12mm oil pipe indicating later model.
Since conversion I have tried tweaking the injection pump timing and best results (closest to starting) is when I'm set just in advance of the "Z" mark on the flywheel.
Pump was re-conditioned last November so should be good.
I have loosened off injector no.1 and checked fuel coming through and turned over to eliminate any trapped air.
Glow plug relay and fuse seem to be ok (come on and go off in a similar time to pre-conversion) and I'm getting 12V at the glow plugs.
When I try to start the engine turns over freely and kicks out some white smoke from the exhaust and produces a "galloping" rythm (as though its closer to starting on some cylinders over others).
1) I'm getting fuel and compression so all that could be missing is the heat(???)
2) Alternate theory is that cam belt has shifted (changed just before conversion) so valves are not in time (could this cause the odd rythm seen?).
Any opinions would be much appreciated.
I had to adjust the wastegate actuator yes,,was plopping it at first because when I first tested it all, revved, and the boost gauge went into negative figures! So got the 10mm spanner out and wound it up as much as possible on the back of the turbo and this is what I have!Nice one , did you get 0.8bar without adjusting the wastegate actuator ?
Have you got a manual boost controller fitted T:
those PP3 Injectors make a massive difference.
Modifying the pump for veg is not really required, our pumps are ranked 4 out of 5 on Diesel Bobs good veg pumps guide chartwhen I get a decent LDA and vege proofed pump sorted
Yup I know, Ive been running veg for 2.5 years, on a standard pump, the veg will rot the seals eventually, or so i am led to believe,,my point was since pump will get rebuilt for LDA I may as well do the seals, vitron ones at that, specifically design for the veg or bio T:Modifying the pump for veg is not really required, our pumps are ranked 4 out of 5 on Diesel Bobs good veg pumps guide chart
I personally have been running veg 100% for 5 years on a standard pump and no signs of issues yet, mind you I have a heat exchange fitted to keep the oil thin at all times so that may help prolong things
If she goes then I will do the full Bob treatment but unlikely before simply due to cost.
In 5 years I have saved so much pretty well any veg related disaster is more than covered by the savings and some
With veg it all comes down to a cost of repair and available money vs risk calculation.
Hi again folks, got a chance to get working on my van again after having to leave it for a few months.its over fueling, it will be set to fuel a Turbo higher power Engine (140bhp)
reduce the fuel screw
Send it off to Diesel bob to get it serviced and set up T:Hi again folks, got a chance to get working on my van again after having to leave it for a few months.
The situation was I was about to fit turbo conversion parts when my fuel pump died. So I fitted a fuel pump from an audi turbo diesel and tried to set it up to make sure it worked before doing the turbo conversion. It seems to be overfuelling, the engine revs up to the redline as soon as I start it.
I have tried reducing the fuel screw to the point where the engine won't start but makes no difference, as soon as there's enough fuel to start it goes straight up to max revs. Tried adjusting the idle screw too.
I think I am going to have to call it a day with the audi pump and get my original non turbo one reconditioned, unless anyone has any other suggestions? I have left the auto cold start disconnected could that affect it? Can the throttle somehow get stuck fully open inside the pump?
Done the first big run on the Turbo in the Camper Superb difference, can't believe I haven't done this before, only one teething problem which we got to the bottom of last night - think this may be a one off, but thought I would share it with you anyway - leaky oil return pipe from the Turbo, this is looking down the back of the engine, freshly wiped clean and you can just see the oil leaking back:
Good news is, the replacement pipe is only £35 new from VW - the not so good news is fitting it LOL: