Re: IML: Oil usage theories

["Gary Wilson" <mopar413@xxxxxxxxxxx>]

If you have oil on the treads it almost has to be leaking from the valve 
cover gaskets.  If the tips are dry and clean it can';t hardly be anything 
else.


----- Original Message ----- 
From: "Steve B." <Imperial59@xxxxxxxxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Tuesday, November 13, 2007 5:46 PM
Subject: Re: IML: Oil usage theories


> > Compression check months ago was OK, no blue smoke at cold start up (even 
> > if sitting for days), no blue smoke at hard acceleration, or after idle - 
> > just no blue smoke at all.  Idles and drives quite well, gets about 11 
> > mpg.  Pulled the plugs yesterday after 3000 miles, and they were nicely 
> > tanned/greyed, clean everywhere except wet oil on the threads.
> >
> > Dave had mentioned earlier that big block Mopars have a tendency to need 
> > valve seals.  If that is what's indicated by the above evidence, I could 
> > probably find the resources to pull the heads.
>
>
> Dan:
> You probably do need valve seals as most engines do at this age, but I 
> don't think they are your problem.  You've seen the Chrysler minivans 
> around town that look like mosquito foggers with all the blue smoke coming 
> out the back? Well they aren't using the kind of oil you are using...
>
> Failed valve seals let the oil in to the combustion chamber, if you were 
> actually burning that much oil there would be clouds of oil behind you and 
> those plugs would have been black clumps of goo instead of nice and brown.
> > From your description of the plugs it doesn't sound like you are burning
> much/any oil.
>
> You most likely have a leak somewhere.  Valve cover gaskets (wet oil on 
> the plug threads suggest they are leaking), oil pressure sending unit, 
> rear main seal...  I don't know where it is but I don't think it is a 
> valve seal problem.  Try putting some cardboard under the car and rev the 
> engine to hiway rpm for a few minutes and see if you can see anything 
> leaking.
>
>              Steve B.
>
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