[Vwdiesel] Starter issues comments and a need for vacumn.
scameron at storm.ca
Wed May 16 12:35:32 EDT 2007
At 03:53 PM 16/05/2007 +0000, you wrote:
>Vacumn, I have a 91 jetta Gl that sat for several months
>in the winter as i waited for warmer climes to change a
>water pump, new timing belt also, Now i don't seem to
>have any vacumn. Bentley seems to be hiding the info
>on it though the archives suggest a simle rebuild
>This is all good though in the back of my mind i am wondering if the "key"
securing the intermediate pulley
>could have not locked in and therefore the sproket spins on the shaft with
the vacumn issue begining there.
Caution, do not run the engine until this is investigated!
The oil pump is driven off the bottom end of the vacuum pump, and if the
vacuum pump is stuck, there will be no oil pressure..
It may be "frozzen" from being idle for a while. It's easy 1 bolt removal to
see if it turns freely.
Vanes may be sticking. Rock its shaft back and forth gently and it will come
Make sure its tab is properly aligned with the slot in the oil pump shaft on
Since the iintermediate shaft is only run by friction on the bacck of the
timing belt, it may bee slipping on the pulley. Can you turn the shaft by hand?
Have you properly tensioned the timing belt since changing it?
If its loose, it wont drive the oil pump and vacuum pump.
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