On Oct 7, 10:48 am, Bill <wtjohns...@[EMAIL PROTECTED]
> wrote:
> On Oct 6, 6:03 pm, Bill <wtjohns...@[EMAIL PROTECTED]
> wrote:
>
>
>
> > On Sep 30, 5:07 pm, Bill <wtjohns...@[EMAIL PROTECTED]
> wrote:
>
> > > I have an oil leak that finds its way to the passenger side CVJ and
> > > then slings out. I cleaned the underside well then got underneath
> > > with the engine running and waited for the drops of oil to start.
> > > Soon I saw a drop appear on the underside of the PCV breather/
> > > separator. Last weekend I removed the breather/separator and
> > > reapplied RTV to the surface interface with the timing chain cover.
> > > The leak continued. I thought: darn, I should have removed the new
> > > PCV valve, put Teflon tape on the threads and put it back but at the
> > > time I saw no evidence of oil from the area of the threads. This
> > > weekend I again removed the breather/separator but this time
> > > completely. I had another from an old engine into which I threaded
> > > the PCV valve using Teflon tape. Also I mashed some RTV up against
> > > the timing chain cover surface interface with the block at that spot
> > > just in case the leak was there. Cleaning the timing chain cover/
> > > breather interface well, I used RTV again. After 24 hours for the
RTV
> > > to cure, I took the car for a drive and the oil leak persists. The
> > > leak amounts to a couple of puddles, one the diameter of a golf ball
> > > and the other the diameter of a racket ball, appearing after I get
to
> > > work in the morning. The head had recently been replaced and I had
> > > put in a new timing chain, guides and tensioner. When I last
removed
> > > the breather/separator/PCV there again was no evidence of oil under
> > > the PCV valve itself. There's a brace for the power steering just
on
> > > the outside of the breather which prevents me from getting eyes on
the
> > > timing chain cover. I don't see how it's possible to remove this
> > > brace without lifting out the engine. What I just tried a minute
ago
> > > was rolling paper towels and tucking them: a) between the power
> > > steering brace and the breather, b) on the inside of the breather
> > > outer top where there's a half inch opening. I let the engine run
for
> > > a few minutes but no evidence of oil at those spots.
>
> > > I realize it's difficult to get a clean seal between the breather
and
> > > the timing chain cover so the RTV will bond cleanly but I went over
it
> > > well with brake cleaner which dries without a residue and I don't
> > > believe I could have failed to get a good seal there twice.
>
> > > Anyone seen or heard of this kind of oil leak?
>
> > > billy.johns...@[EMAIL PROTECTED]
> > > Heard County, GA (formerly of Long Island)
>
> > Well, I was under there today. Turns out it probably isn't damage
> > from the local garage prying the engine over as I don't see any clear
> > damage to either timing chain cover. First thing I did was to run the
> > car and watched closely near the oil pump area of the timing chain
> > cover. Oil did appear but its source wasn't clear. Also, there was a
> > bit of oil on timing cover bolt near the water pump. Shutting down
> > the engine, I unbolted the power steering and wired it to the
> > firewall. I removed the metal brace that looks like a British Pound
> > symbol near the head and the engine mount. Nothing appeared to have
> > been leaking there. I inspected the PCV breather enclosure closely
> > and noticed there was a bolt missing. It threads outward and holds
> > the breather together. Somehow when I changed breathers I hadn't
> > noticed that was missing. Fortunately I could get the bolt from the
> > old breather into it without removing the breather. That snugged up I
> > was pretty sure that had been the latest leak as it sits directly over
> > the plugged access to the oil pump in the timing chain cover where the
> > drops of oil had been appearing first. So, back went the power
> > steering and the alternator snug and I started it back up, waited a
> > minute, and there was soon oil ac***ulating that sealed hole to the
> > oil pump in the timing cover and soon dripping from the bottom of the
> > CVJ under the power steering brace as well. I go in again, unbolt the
> > power steering pump, wire it to the fire wall, and take a number of
> > paper towels. I tucked one in between the PCV valve breather
> > enclosure and the block, taped one under the breather with duct tape.
> > taped one over the timing cover sealed access to the oil pump and this
> > paper towel also covered the small bolts above and below the oil pump
> > sealed access. Ran the engine and one or a couple of those paper
> > towels were effectively interdicting the oil drip. Shut down the
> > engine, unbolted the power steering pump, and first checked the paper
> > towel between the breather and block, no oil, checked the paper towel
> > taped to the bottom of the breather, no oil, checked the paper towel
> > taped over the plugged oil pump access and yes, oil in three spots,
> > from the top bolt from around the sealed hole and from the bottom
> > bolt. I suspect that the mechanic didn't seal those two bolts
> > properly nor the bolt near the water pump. Oil seems to well up
> > around the threads and through the slit in the lock washer. Like he
> > put a thin bead of RTV outside the bolts but not on the inside of the
> > bolts. I checked the old block I have here and those are blind bolt
> > holes. So, after it dried from cleaning, I got a good bit of RTV into
> > those holes and around the base of those bolts and tightened it up.
> > Also covered the tin plug in that access hole. Now it's drying and
> > hoping for the best tomorrow.
>
> Leak still there. It seems to be RPM/duration dependent. A seven
> mile trip to the post office this morning, parking in a fairly clean
> spot, left a softball sized oil spill in the time it takes to check
> one's mail. So, I'm thinking it's seeing the oil pressure and
> therefore probably right near that oil pump output ****t leading to the
> oil filter. The PCV breather separator would see oil but not under
> pressure. The oil filter aluminum stand seemed fine and a paper towel
> under it didn't ac***ulate oil when the towels were around the
> breather and timing cover. I have changed the oil pressure sensor,
> that more than a month ago. Wish I could run the engine without the
> power steering pump in place but without the water pump that would
> seem foolish.
>
> It could be a cracked block that I just don't see. When it went into
> the transmission shop for a leak at the differential, first they
> changed the oil seals but that didn't help. That tranny leak had been
> there since before the engine swap out a year ago and those guys said
> they replaced the seals. When the transmission place changed the
> seals again and it still leaked the mechanic showed me how the
> passenger axle seemed to be into the differential at a slight angle
> and that was probably causing the leak. We left it at that until a
> month or two later I asked it they could put on a rebuilt head and
> they said yes to that and fixing the transmission leak. I had gotten
> promised multiple time by them that I would get it back without
> leaks. Afterwards they denied that agreement and claim the oil leak
> must be caused by something broken before they took the engine out and
> it's not their responsibility. Anyway, once the engine was out a
> thought was that the mounting bracket for the CVJ was bent although
> not noticable to the eye. The engine that had been taken out the
> previous year had some years before seen a bad front accident. A
> thought was that the same CVJ brace had gone onto the replacement
> engine at that time when it at least got a short block and again last
> year with the used engine and was presently still causing the leak. I
> had a brace with the parts from the engine replaced last year and
> noticed there is a placement tit on the brace. I suggested that tit
> might not have been in place and a side of the CVJ mounting bracket
> might not have been sitting flat. No answer on that but I did give
> them the other brace to put in as well as a new axle while the engine
> and transaxle was out. There's no leak from the transaxle now. That
> brace is a hefty piece of steel but this is another block.
>
> Unless the engine put in last October had been in a bad front end as
> well there isn't any reasonable way this block can have a crack at the
> power steering or CVJ brackets. Besides if it were a crack at the CVJ
> mounting bracket bolt holes the oil wouldn't be falling from the
> inside power steering bolt (with the sup****t pipe) onto the CVJ when
> the engine is run with no paper towels and the wheels not moving and
> the CVJ not slinging the oil.
>
> I think I'll go another week sliding a piece of cardboard under the
> car at work and take it when I leave and next Saturday do the paper
> towel test again but this time after putting it back together taking
> it out on the road where oil pressure will be up there. Also, the
> stresses of a drive might have an effect on the leak.
>
> Bill
> Heard County, Georgia, deep in the Southland, a few short miles from
> the setting of the book/movie I WAS A FUGITIVE FROM A GEORGIA CHAIN GANG
(Had the title wrong.)
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