Anyone have a pulley lock and/or front seal puller I can borrow?

Jan Pinkowish jpinkowish at earthlink.net
Thu Dec 29 23:22:19 EST 2005



Previously, Matt wrote:
> Also, I just ordered a new front main seal and oil pump gasket...
> Gonna try to take care of this front-of-the-engine oil leak once and
> for all.  I've already replaced the front main seal once.

...and Huw responded: 
> Are you reasonably sure they are/might be the problem?  That's a 
> lot of work if they're not.  More likely culprits to check, you 
> ask?  From the easy, cam cover gasket overtorqued, to the pains, 
> like timing belt cover bolts missing/loose (some go into oilways), 
> and if your car has it, the oil temp sender in the bottom of the 
> oil pump is a known leaker.  I even suspect the A/C bracket bolts 
> of being a tiny leak source on one of my cars.
> 
> Have you cleaned everything to you could eat off it and then tried 
> to see where the "fresh" oil is leaking from?
> 
> Just trying to save you trouble... good luck!
> 
> -- Huw Powell

Whereupon Matt responded again:

>Thanks Huw.  Yes, all of the above.  I've checked everywhere I could--no missing timing belt cover bolts loose, oil temp sender is solid, I've replaced the cam cover gasket (torqued to the correct spec and RTV'd) and I've cleaned off the block and checked.  The oil seems for all the world like it's seeping out from behind the main pulley, running along the oil pan flange and dripping onto the ground.  I took a picture but it's not very helpful:
>
>http://www.mattsuffern.com/audi/leak1.jpg
>
>I've been told that there's a bolt missing or something based on that picture but I've looked and looked and I can't find an spot for a bolt anywhere.  I'm just at my wits ends with this thing.  I'm tired of putting in two quarts a week.
>
>Matt

Matt,
Two quarts/week is a big leak.

To supplement Huw's comments:
--Remove the top timing belt cover and check the water pump bolts and the other bolts holding the back cover to the engine.  Loose bolts leak oil.
--Look inside down at the front seal area using a bright narrow beam of light.  If you see an oily mess, and the above bolts were tight, you have a leaky front seal.
--Check your low oil pressure(not temp) sender for a leak.  This is the brown colored sender near the front of the driver side of the block just above the oil pan.  I had this leak and the oil crept around the front of the engine and down the pass side.  I thought I had either a front seal or pan gasket leak until I looked inside the timing belt cover -- no oil.  You'll need to thoroughly clean the area around the sensor, apply talc or some such, and then check 1-2x/day.  A new sensor is under $10.

As an aside, how are your valve stem seals?  I replaced mine and reduced oil consumption by 80%.  If you do replace the seals($15 or so), replace the hydraulic lifters -- even if they're quiet.  They're only $9/ea and you've already done all the work to get in there.

HTH

Jan Pinkowish
'85 4ksq



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