[Shotimes] Burning through oil like crazy

[Paul Nimz]

It's your valve guides/seals that are leaking.  Try some Auto-RX followed by 
some Castrol GTX Hi-Mileage oil.

Paul Nimz
'97 TR
'93 EG mtx


----- Original Message ----- 
From: <cmichaelo@optonline.net>
To: "Donald Mallinson" <dmall@mwonline.net>
Cc: "Eric Keller" <unterhausen@yahoo.com>; <shotimes@autox.team.net>
Sent: Monday, August 30, 2004 10:30 PM
Subject: Re: [Shotimes] Burning through oil like crazy


> Don,
>
> Why would it necessarily leave huge puddles when the car is NOT running 
> and/or when the engine is NOT warm? I don't think is unlikely that an 
> engine can loose more oil through seals when it's running than when it's 
> not running. Also, a seal like the front mail seal, the oil level doesn't 
> even reach up high enough to leak out through the seal. (I know this, or 
> think that I know this, since I just replaced the front mail seal, and 
> when I pulled the seal out there was not a single drop of oil coming out.)
>
> So I think it is possible to loose oil through, say, the front mail seal 
> while the car is running. But if it's leaking out the front mail seal AND 
> your car is standing still, then the oil should drop onto the cat pipe and 
> you SHOULD be able to smell/see it. While driving, I don't think oil 
> leaking through the fron main seal would necessarily hit the pipe since 
> all the turbulence under the car would blow the dripping oil elsewhere.
>
> Michael
> 94MTX,green,BOS+,Koni/Intrax,Baer,Corbeau
> SHO items for sale: http://hometown.aol.com/cmichaelo/for_sale.html
>
> ----- Original Message -----
> From: Donald Mallinson <dmall@mwonline.net>
> Date: Friday, August 27, 2004 8:02 am
> Subject: Re: [Shotimes] Burning through oil like crazy
>
>> If the car was leaking that much, it would leave HUGE
>> puddles under the car at night and the entire underside
>> would be coated with oil.  If it was leaking that much and
>> hitting the cat converter, you would be killing mosquito's
>> within a 10 mile radius with your smoke plume.  Since you
>> don't mention any smoke, it is going through your engine and
>> the cat converters(for a while at least) are eating up the
>> smoke.
>>
>> SHO V6's are famous for sometimes (not all the time) having
>> the valve guides and then the seals go bad.  The oil goes
>> right into the combustion chamber and out the tailpipe.
>>
>> Try this test:
>>
>> run the car down a highway at 50-60 mph for a few miles in
>> high gear.  Then drop down to third so you are at about 4000
>> rpm and floor it....watch your rear view mirror.  You
>> normally would see a small greyish puff, but in your case
>> you will see a somewhat large cloud of bluish smoke.
>>
>> My son's '89 used a quart in 100 (maybe 75) miles, and if
>> you didn't watch close upon doing this test you could miss
>> the puff.  He ran it at Mid-Ohio and after the first puff
>> (cleans out the combustion chamber and cat converters) the
>> car never made any noticable smoke, the cats do a superb job
>> of masking oil burning.
>>
>> Nope, it isn't leaking, THAT you would never miss!
>>
>> Don Mallinson
>>
>> Eric Keller wrote:
>> > My '90 stock 3.0 mtx with 136000 miles is going
>> > through oil like there's no tomorrow.  I _may_ have
>> > put 50 miles on the last quart.  It doesn't smoke out
>> > the tailpipe.  There has always been some external
>> > leakage, but I've been replacing seals and I don't
>> > really see where the oil is coming out.  In fact, I
>> > used to get a certain amount of smoke at stoplights,
>> > and now I can smell oil, but considerably lower
>> > amounts.  Maybe it's just missing the cats.
>> >
>> > I'm a little stumped as to what to do next.  Any
>> > ideas?
>> > Eric
>> >
>> >
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