[V8] More oil leaks! Been there, done that....

[Roger Woodbury]

Of course it is easy to sit here in the sunshine and make bland statements,
but if you have replaced all else, and you still have a leak, then I would
suspect that something is amiss with one of the new seals or gaskets. Either
it wasn't installed correctly, the wrong torque used, or it was just plain
faulty to begin with. I suspect that there is a LOT more faulty parts
floating around than we might otherwise suspect.

I just fixed the left side headlight on The Old Gray Mare.  The installation
of  the Euro headlamps went pretty well, although I seemed to have a lot of
trouble with the right headlight at first. The left worked perfectly from
the beginning, until suddenly the low beam side failed. 

In the end, both relays that I had installed had failed.  It might have had
something to do with their country of origin, which was wwwwwwwwway west of
here.  But of the eight relays that I bought to do the installation five
failed.  In thirty years of playing around with headlights on various cars,
I have NEVER had a relay fail within a few months of installation, and I
can't remember the last relay that failed at all.  

But faulty parts?  Oh, yeah.  Quite likely.

Roger

-----Original Message-----
From: Dag Bøsterud [mailto:dag.boesterud at consulgranada.net] 
Sent: Thursday, May 15, 2008 12:51 PM
To: rmwoodbury at roadrunner.com; V8 at audifans.com
Subject: Re: [V8] More oil leaks! Been there, done that....

My engine was taken out of the car during last month, and we replaced lots 
and lots of gaskets. It's easier to list what's not been replaced:

077 103 161C - gasket between block and sealing flange
077 103 171G - sealing flange (rear crank radial seal) - I don't have a leak

at the rear of the engine
077 103 609E - gasket - upper oil sump gasket
077 103 610C - gasket - lower oil sump gasket
077 115 427E - gasket - gasket for oil thermostat housing / outlet for 
temperature sensors / oil cooler

These are the only gaskets/seal I can think of that has not been changed.

...but the darned thing still leaks!!!

If I were to tighten the heads a bit more, how much? 1/8 of a turn? 1/4?


/Dag
92 V8 4.2


----- Original Message ----- 
From: "Roger Woodbury" <rmwoodbury at roadrunner.com>
To: <v8 at audifans.com>
Sent: Thursday, May 15, 2008 2:34 PM
Subject: [V8] More oil leaks! Been there, done that....


>I had the same trouble with a mysterious oil leak in my '93 V8.  We did the
> timing belt service because it needed it, and went searching for the oil
> leak because the oil cloud at the stop sign was begging to be annoying. 
> If
> I wanted an aged Camaro with oil cloud from its antique small block, I 
> would
> have bought one.
>
> The wrench did the timing belt and replaced ALL the seals and gaskets and
> stuff.  And because "we were in there" the power steering pump, reservoir
> and a partridge in a pear tree were all replaced.
>
> And....the damn thing still leaked.
>
> Tore it down again.  No sign of any leak except that it WAS leaking from 
> the
> right side of the engine.
>
> Die and black light.
>
> Nope. Couldn't see.
>
> Tore off the heads and sent them out to be fluxed...maybe a crack in the
> right side....oh, look THERE! That looks like an imperfect casting in the
> head...maybe it leaks when it gets warm enough....hmmmmmmmmmm
>
> NOPE. Heads were fine.  Machinist remarked about how finely made and
> sophisticated the heads were....reassembled....
>
> Still leak.
>
> Wrench says:  "Now, I am mad.  I am going to find that leak and fix it. 
> We
> are now working off the clock."
>
> Tore it all down again.  Leak found:  turns out that the seal in back of 
> the
> inside of the right side timing belt cover was.....BAD....fixed seal. 
> Fixed
> leak.
>
> That is the car that ultimately became The Gentleman's Express.
>
> My own personal spin on the V8, is that about the time that the second
> timing belt is due, the entire engine should be removed from the car, and
> completely disassembled, and resealed.
>
> Figure the odds on doing all of that at 120,000 miles...but it could 
> happen!
>
> Roger
>
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