Thread: 300tdi question

Hi Clean,

I believe a set of detailed notes (with photos) I wrote on optimising the settings of the Tdi injector pumps is available somewhere on this website. (Strangely enough, I've never felt the need to find and download them...).

I'm sure another respondent will be able to tell you how to find them. I think the notes would answer most of your questions.

Ian

Originally Posted by clean32

Mate i would love pictures of all this, so i know what you are playing with, like which screww is the no boost fule pressur ?? etc

Hi mate;

you'll find Ian's instruction as a PDF file from this thread;

http://www.aulro.com/afvb/technical-...-tweaking.html

Just Recieved a call from GC , The #$@#%$ Timing Belt was Loose...

Originally Posted by Disco_owner

Just Recieved a call from GC , The #$@#%$ Timing Belt was Loose...

What would make the belt loose?

Which begs the question who fitted it last time?

Originally Posted by MinniTheMoocha

What would make the belt loose?

Which begs the question who fitted it last time?

hi MinniTheMoocha;

whilst I'm not sure what causes a Timing belt to find it's way loose ,John ( next door mechanic ) who fitted the timing belt "said" he had torqued up the tensioner according to the specs on Haynes Manual , also Note !!!! vehicle had been driven without any issues Post Fitment of the Timing Belt for a quite while and only just recently I had noticed a slight loss of power,,, obvioulsy on fitment things were torqued up enough & somehow the tensioner found it'sway loose , wheather this is a common thing????
can't answer that?

Originally Posted by Disco_owner

hi MinniTheMoocha;

whilst I'm not sure what causes a Timing belt to find it's way loose ,John ( next door mechanic ) who fitted the timing belt "said" he had torqued up the tensioner according to the specs on Haynes Manual , also Note !!!! vehicle had been driven without any issues Post Fitment of the Timing Belt for a quite while and only just recently I had noticed a slight loss of power,,, obvioulsy on fitment things were torqued up enough & somehow the tensioner found it'sway loose , wheather this is a common thing????
can't answer that?

Is the Haynes manual up to date with the latest torqueing techniques as per L/R updates?

Would love to know if bolts came loose, belt stretched etc.

Thanks

Originally Posted by MinniTheMoocha

Is the Haynes manual up to date with the latest torqueing techniques as per L/R updates?

Would love to know if bolts came loose, belt stretched etc.

Thanks

MinniTheMoocha

The Prognosis is ;

The Mechanic checked injection pump timing and there was excessive play between Crank & Injection Pump ,

also as said earlier , Timing Cover removed and Loose timing belt retensioned , set pump timing , and readjusted Boost compensator as required, plunger limiting spacer was also missing, refitted, Dyno Graph definitely shows improvement.

Interesting,lots of replies on things that it wasn;t.
My idea would have been to actually backtrack what you did. You replaced the timing belt, i guess it was going fine beforehand. So it seems obvious thats what the problem was,

my thoughts on the prob.


john