Re: Cats and bad rings

[byoshida@zygote.hsc.usc.edu (Benton Yoshida)]

I guess the leakdown test is telling but if you don't see blue smoke, maybe
most of the oil loss is out of the valve cover gasket and not necessarily
being burned.  Is the engine leaking oil at all?  I know the 8V valve cover
gasket is a weak design; not sure about the 16V one.  Also, when the oil
pressure switch goes bad, it turns into a spigot.   b-------




>Hi Folks,

*snippety snip*

>have the $$$ to rebuild the bottom end and now I know the piston
>rings that are not sealing the best according to a leakdown. Not
>my doing - I change the oil every 3k. Previous owner was a dork!
>I know the rings need replacing but I'm biding my time until I
>graduate, get a job and can afford a new engine.
>SOOOO, will burning quite a bit of oil (say 1 litre on 1000km
>highway runs at 5000 rpm) kill my cat. I'd keep the rev's down
>but you know that close-ratio 5th! The funny thing is the car
>doesn't smoke (blue) at the back as a friend verified driving
>behind me. If I kill it I guess I'll put in a cheapo downpipe
>and straight pipe until I fix the engine! I'd keep the cat
>otherwise. OR someone could sell my their engine for cheap!
>Or install a wide-ratio 5th...
>
>Thanks for any comments, tips, insults for being an
>oil-burner, etc...
>
>K.B.
>'88 16v
>scirocco@speed-racer.com




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