Date: Wed, 3 Oct 2007 08:54:39 -0700
Reply-To: Bob Donalds <donalds1@VERIZON.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Bob Donalds <donalds1@VERIZON.NET>
Subject: Re: Oil Leak - 2.1L WBX - Manual Tranny
Content-type: text/plain; format=flowed; charset=iso-8859-1; reply-type=response
John
Oil leaks can have many causes too much crank case pressure tops the list on
newer engine with rings that have yet to seat or that have been pushed to
hard to soon. The other problems are thing like collapsed crank vent tubes
the 2.1 engines have a restrictor in the vent line to reduce the air intake
from the crank vent. If it is leaking from both front and rear crank seals
then increased internal case pressure sounds likley
By products of combustion and newer oil blends I'm thinking synthetics here
can harden seals much faster than older products and leak where other wont.
Wash the beast down and get under it or place a cardboard to see the
offending spot. Fuel mixture can add to the crank case pressure and none of
the seals are meant to hold back gas. Gas in the oil is more common in
engines what have had short trips and repeated starting just to move it
around the yard.
Did you rering the engine or put in new cylinders and pistons
I have been also encouraging my customers to have the fuel injectors tested
and rebuilt when installing a B Bob engine. The flow charts before and after
make it clear to me the value of matched flow rates and spray patterns.
Bob
----- Original Message -----
From: "John Rodgers" <inua@CHARTER.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, October 03, 2007 2:15 AM
Subject: Oil Leak - 2.1L WBX - Manual Tranny
> My machine is leaking oil. It has for a while, it hasn't been to bad,
> but it's gotten worse over time. Yesterday I put it on the rack to see
> if I could get an idea as to what is going on.
>
> The whole bottom of the engine was wet. It was heavily wetted at both
> front and rear of the engine.
>
> Question: Where might all this oil be coming from? Front and rear seals?
> or is there something up on the sides somewhere that might produce oil
> leaks. Can't really see in there. If it is seals - front and rear
> (engine now has about 75,000 mi since it was overhauled completely}-
> what does this indicate - being leaking seals on both ends? It it likely
> that just replacing seals will take care of the problem for the next
> 75,000 miles, or is something more sinister at work here.
>
> Any input would be appreciated.
>
> Thanks,
>
> Regards,
>
> John Rodgers
> 88 GL driver
