[Vwdiesel] TDI New Beetle No start

Erik Lane eriklane at gmail.com
Sat Nov 7 15:15:10 PST 2009


While definitely good advice to double check the timing, in my
experience if it's not starting and there's no puffs of smoke out the
tailpipe then you're not getting enough fuel. Though my experience is
weighted more on the side of the early 80's diesels as far as VW. I
did have a TDI that was hard starting, but we towed it to start it.
There wasn't smoke at first, so we figured it just needed the pump
primed, which the towing took care of within a block or so. I expect
that if you're trying to start with a TDI that the computer will be
telling the pump to give fuel to the injectors, so if it's not being
burned then you should see it at the tailpipe. White/grayish smoke,
though it sounds like you've worked on a few. But if you have fuel
spraying at an injector and nothing out the tailpipe then ????

Even when a pump has been 180 off I got quite a bit of white smoke,
but the darned thing actually ran. Very low power, but it would go
down the street. Didn't hesitate in tracking down that problem! Then
it ran beautifully. I had just rebuilt the engine. (The first time I
timed a pump I couldn't find the mark on the gear and made my own
chalk mark to put it back how I found it. I forgot that it could end
up 180 off - I didn't check the cam when disassembling.)

Erik

On Sat, Nov 7, 2009 at 2:48 PM, Tony and Lillie
<tonyandlillie1 at earthlink.net> wrote:
> The graph is not accurate till the car is at opperating temperature and running, from my experience. I'd go back and double-check the timing alignment of the cam and pump. If you are getting fuel, that's about all that can be wrong.
>
> Let us know what you find,
> Tony
>
>
> -----Original Message-----
>>From: Dave Cook <davevw at yahoo.com>
>>Sent: Nov 7, 2009 3:21 PM
>>To: Audi-VW-Diesels Group <Audi-VW-Diesels at yahoogroups.com>, VW Diesel Group <vwdiesel at vwfans.com>, TDI-Conversion Group <TDI-conversion at yahoogroups.com>
>>Subject: [Vwdiesel] TDI New Beetle No start
>>
>>I'm working on a TDI new beetle that won't start.
>>
>>Timing belt was recently replaced.  I installed the belt and let the guy put the rest of the parts back on after that.
>>
>>There is fuel in the pump, as verified by it spraying out when an injector is cracked.
>>
>>I hooked up VAGCOM and it appears that it is timed a little retarded, but in the range indicated as ok, however I am not sure how accurate that graph will be when just cranking and not running.  Anyone know this?
>>
>>Any thoughts?  I think I can smell a little fuel out the exhaust, but there haven't been any big white clouds or anything.
>>
>>Dave Cook
>>
>>
>>
>>
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