[V8] Leaking crank seal / oil pump seal 92 4.2

[Dave Saad]

No idea what the brown stuff is, but I am pretty sure you do not want  
to use grease on these seals. They should be fine with just oiling  
before installation.
Also not sure if any damage was done to the seal - but I guess you  
can tell us in a few days if things settle out OK.

Dave


On Aug 2, 2007, at 6:36 PM, Dag Bøsterud wrote:

> We changed them because at least the crankshaft seal was leaking,  
> not sure about the oil pump seal. Changed that one just in case.
>
> We cleaned the crankshaft with carburettor cleaner, and could not  
> see any damage to it. Lubed the seal with plenty of grease (wheel  
> bearing grease) and put it in place using 3202. The oil pump seal  
> also got plenty of wheel bearing grease. I'm thinking that maybe  
> the grease is melting and coming out along with some leftover  
> coolant and old oil, but...
>
> When we changed the timing belt we also changed the transmission...  
> and the transmission was leaking everywhere. And really...  
> everywhere. And I later found that the power steering pump was  
> leaking. The engine was very soaked on the outside, so neither did  
> my friend nor I notice the leaking seal(s).
>
> The only thing that I can think of is that when we changed the  
> timing belt this spring, we found huge amounts of green Loctite.  
> This had also been used on the little pulley on the crank that the  
> timing belt runs on. If the Loctite somehow had seeped onto the  
> seal and destroyed it...
>
> Is this possible?
>
> /Dag
>   ----- Original Message -----
>   From: Kneale Brownson
>   To: Dag Bøsterud
>   Sent: Friday, August 03, 2007 2:13 AM
>   Subject: Re: [V8] Leaking crank seal / oil pump seal 92 4.2
>
>
>   Unlikely you damaged anything using 3202, 3203 to extract and  
> replace the seal.  Did you see any signs of leakage around the seal  
> prior to the first TB change?  I'm wondering if the oil pump or  
> crankshaft are scored by previous work.
>
>   Dag Bøsterud <dag.boesterud at consulgranada.net> wrote:
>     Changed the timing belt this spring, only to discover during a  
> radiator change this week that the crank and oil pump seal was  
> leaking. Let's just say we (a friend and I) got good training in  
> changing timing belts and crank/oil pump seals on V8 4.2.
>
>     When the job was done for the second time, using VW tools 3202  
> and 3203, doing everything right and blah blah blah...
>
>     ...we fired her up, took her for a spin and stopped. "Is it a  
> fire or is it a leak?" I thought to myself.
>     Brownish fluid on the engine, under the timing belt covers.
>
>     Should I be worried about this, or should I let it be for a  
> couple of days? Could it be old oil, some of the grease we used to  
> coat the seals with is melting and coming out along with a bit of  
> left over coolant?
>
>     We really don't want to do this for the forth time!!
>
>
>
>
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