1999 2.5 v6 tdi - power cutting, possible pump timing
Its been power cutting with loads of white smoke when it does - and car seems more loud than other ones i have seen
I have noticed its had the fuel pump changed at some point (breakers yard numbering on it)
So i have been thinking its the pump timing
Took me a while to find out how to do it, but i think i have done it
basic settings group 04
after 10 seconds it gos to full retard and zone 3 goes from 8degres btdc to around 15degrees
Now should that be around 2 degrees not 15 ?
ps just as a little side note, my car label tag in the boot says i have the AFB engine, but vagcom shows it as AKE.... does it do that or have a had a engine swap?
Re: 1999 2.5 v6 tdi - power cutting, possible pump timing
It should be 2° ATDC ± 2°, after top dead centre, not BTDC. Ignore the label on VAG-COM, it does that.
Re: 1999 2.5 v6 tdi - power cutting, possible pump timing
Thanks. Think i understand that
So 15 degres is wrong either way?
Re: 1999 2.5 v6 tdi - power cutting, possible pump timing
Re: 1999 2.5 v6 tdi - power cutting, possible pump timing
Thanks crasher you save my sanity yet again!
Re: 1999 2.5 v6 tdi - power cutting, possible pump timing
ok
I set about doing the timing this morning. i got it to around 1.5 atdc
and it now runs worse!! the most amount of unburnt diesel smoke i have ever seen and it wont rev at all just chucks loads of smoke out?
confussed i need help!
heres my vcds
http://i4.photobucket.com/albums/y13...r/Untitled.jpg
Theres tipex marks every where under the belt cover. I think someones had the belts of and F'ed it up
Its possible that pump timing is now right but cam timing is out?
Re: 1999 2.5 v6 tdi - power cutting, possible pump timing
That is because you have set it advanced (early), not retarded (late).
http://i222.photobucket.com/albums/d...njection-2.jpg
Re: 1999 2.5 v6 tdi - power cutting, possible pump timing
god... iam out of my depth here..... thank you crasher
is this now right????
http://i4.photobucket.com/albums/y13...Untitled-2.jpg
Re: 1999 2.5 v6 tdi - power cutting, possible pump timing
Yes thats right on the Inj timing. Is it all sorted now? Reason I ask is that I found my injection timing advanced 15 degrees also and it turned out that the cam timing was out as well (by the same amount since it drives the pump). I brought it like that was so don't know whether it was set wrong or had slipped out of sync by a tooth on the crankshaft. Sorting that made it run like an audi instead of a tractor.
So if its not 100% now do at least check the cam timing.
Re: 1999 2.5 v6 tdi - power cutting, possible pump timing
Thanks luke
It now starts up pretty much straight away instead of about 8 cranks. Doesnt seem to be power cutting now, only a tiny bit of unburnt diesel smoke and now some black smoke, seems to have a fair bit more poke but still seems a bit more tractor sounding then i think a a6 should.
Will have to try and find the proces for checking the cambelt timing and make sure its right.