[DML] Re: front main seal leak

["Nathan Sobieralski" <valleyrat12@xxxxxxxxx>]

What will cause too much crank case pressure? I have notices a draft 
coming from around the oil fill cap/breather, would that indicate 
too much crank pressure?
Nathan
2277
--- In dmcnews@xxxxxxxxxxxxxxx, "Dave Swingle" <swingle@...> wrote:
>
> Did you put some sealant under the sleeve, and did you oil the 
pulley 
> shaft before inserting the pulley onto the crank and into the 
seal? 
> Does that seal have a tension spring inside it? It's a slightly 
> tighter fit with the sleeve and if it's difficult to get in you 
can 
> knock the small spring (if that seal used one) off the sleeve. 
> 
> Check the crankcase pressure by running the engine with the oil 
> filler cap removed, but if it still leaks my guess is that you 
either 
> nicked the seal during installation or dislodged the tension 
spring 
> in the seal. If that happened, when you remove the pulley again 
> you'll see the spring wrapped around the crank - you may need a 
> mirror to see it. 
> 
> --- In dmcnews@xxxxxxxxxxxxxxx, Soma576@ wrote:
> >
> > Hey Group,
> > 
> > Part of my engine pulling project was to replace a leaking front 
> main 
> > seal. It would gradually seep and was just making a slow mess on 
my 
> oil 
> > pan.  While the engine was out, I pulled off the pulley and had 
it 
> > sleeved with the appropriate timkin sleeve.  I also replaced the 
> oil 
> > seal with Grady's double-lip seal.  Now it is still leaking.
>









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