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Re: Crankcase Ventilation

To: "Lawrie Alexander" <Lawrie@britcars.com>,
Subject: Re: Crankcase Ventilation
From: David Sylvain <niosh@pop.ma.ultranet.com>
Date: Tue, 12 Jan 1999 11:52:41 -0500
Lawrie,

I may have overstated my case when I used the word "goop."  What I see
under the filler cap is mostly moisture (a few drops), and a little bit of
white stuff which seems to be from the combination of moisture and oil.
What I want to do is prevent this stuff from becoming a full-fledged goopy
mess.  

I check the coolant level every day I drive the B, and it hasn't dropped at
all.  Also, there's no white stuff on the dipstick, which I would expect if
coolant were getting into the oil.

I am going to retorque the head in any case, just to make sure . . .

Thanks,

Dave 
72 B roadster

At 07:36 AM 1/12/99 -0800, Lawrie  Alexander wrote:
>Hey, sometimes even those of us who have been in the car repair business for
>over 30 years can make a mistake..................
>
>Lawrie
>
>-----Original Message-----
>From: Hans Duinhoven <H.Duinhoven@simac.nl>
>To: Lawrie Alexander <Lawrie@britcars.com>; David Sylvain
><niosh@pop.ma.ultranet.com>; mgs@triumph.cs.utah.edu
><mgs@triumph.cs.utah.edu>
>Date: Monday, January 11, 1999 11:46 PM
>Subject: RE: Crankcase Ventilation
>
>
>>Hi listers,
>>
>>I had "goop" in my Citroen 2CV, which was air cooled.
>>So goop not always indicates water leakage into the cylinders....
>>
>>Cheers,
>>
>>Hans
>>
>>> -----Original Message-----
>>> From: Lawrie  Alexander [SMTP:Lawrie@britcars.com]
>>> Sent: Tuesday, January 12, 1999 06:45
>>> To: David Sylvain; mgs@autox.team.net
>>> Subject: Re: Crankcase Ventilation
>>>
>>> David.........
>>>
>>> What you are seeing is not a good sign, I'm afraid. Oil vapor alone
>leaves
>>> just an oil film; the "goop" you are seeing sounds like a mixture of oil
>>> and
>>> water (which, I know, don't mix, but you know what I mean...........)
>This
>>> suggests to me that the head was not re-torqued after the engine was
>first
>>> started up so you have a leakage of coolant into the combustion chambers
>>> or
>>> oil return passages, or worse, that there is a crack in the head. The
>>> first
>>> thing I'd do is re-torque the head. If the nuts tighten up an appreciable
>>> amount, that may fix the problem. If they are tight and you continue to
>>> see
>>> moisture in the oil, I believe the head must come off to be checked.
>>>
>>> Lawrie
>>> British Sportscar Center
>>> -----Original Message-----
>>> From: David Sylvain <niosh@pop.ma.ultranet.com>
>>> To: mgs@triumph.cs.utah.edu <mgs@triumph.cs.utah.edu>
>>> Date: Monday, January 11, 1999 7:29 PM
>>> Subject: Crankcase Ventilation
>>>
>>>
>>> >Being rather new to the List, I don't know if crankcase ventilation has
>>> >been discussed already.  Having said that, I am hoping that someone can
>>> >give me some sage advice as to what is needed to keep moisture and goop
>>> >from condensing under the oil filler cap (and eventually all over the
>>> >rocker arms, & throughout the oil passages) in my 72 B.
>>> >
>>> >I got the B in late November with no emissions controls, except for the
>>> >absorption canister:  there's no PCV valve, gulp valve, air pump, etc.
>>> The
>>> >engine isn't original -- It's a 1977 18(V) with HS-4s.  The oil
>separator
>>> >tube vents to atmosphere, and a hose connects the valve cover to the
>>> >canister.  The engine was reportedly rebuilt, and was said to have had
>>> >approximately 300 miles on it when I bought the car.  ( I have since put
>>> on
>>> >approx 800 miles...)
>>> >
>>> >The car runs really strong, and is a real blast to drive, but, on one of
>>> my
>>> >first drives, I noticed a faint odor of blow-by.  I opened the oil
>filler
>>> >cap, and sure enough, I could see blow-by swirling around under the
>valve
>>> >cover.  I also found moisture & a little bit of whitish goop inside the
>>> >filler cap.
>>> >
>>> >It's not that I don't drive far enough to warm the engine -- the car's
>>> too
>>> >much fun to go just "around the block."  Nevertheless, I always find the
>>> >same worrisome stuff beneath the cap when I get home.  I don't see
>>> anything
>>> >on the rocker arms (looking in thru the filler opening), but I really
>>> need
>>> >to pull the valve cover and take a look.  When the engine is running (of
>>> >course), a little blow-by can be seen at the end of the oil separator
>>> tube,
>>> >if you look closely.
>>> >
>>> >The Moss catalog shows several arrangements for ventilating the
>>> crankcase.
>>> >It seems that one of these might help remove the blow-by gases before
>>> they
>>> >can condense & contaminate the oil & foul everything up.  I would really
>>> >appreciate some advice as to which arrangement (if any) would work with
>>> my
>>> >totally un-smogged engine.  And this begs the question of whether it is
>>> >"normal" to have some blow-by in a "rebuilt" engine.
>>> >
>>> >TIA
>>> >
>>> >Dave Sylvain (a newbie)
>>> >72 B (an old B, but a good B)
>>> >
>>
>
>


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