My guess is that your valve guides are leaking. Your blue smoke on
deceleration is a classic symptom of that. Don't know that a heavier
weight oil would make a difference but it wouldn't hurt to try. Some
Marvel Mystery Oil added to the oil might help a little.
Bud
Kim and Kelly Alford wrote:
>
> Hello All,
> After not running my 71 TR6 for about a month, I noticed a new, symptom that
> has me concerned. When I am traveling down hill, or on a flat surface, and
> use the engine for braking by simply taking my foot off the gas, I get a lot
> of blue smoke out of the exhaust. Under acceleration, or idle, it's clean.
> Looking through the exploded view of the parts for the head, I noticed there
> are no valve guide seals in this car. Is this really the case? My
> automotive recall not being what it used to be, it seems that the smoke is
> from either leaky valve guides, or, (gulp), broken, or leaky oil ring(s).
> The only other thing I can think of is that I changed to a thinner oil for
> the winter from what I usually run. Any thoughts?
>
> Thanks,
> Kelly Alford
> 71 TR6
> Shoreline, WA.
> alfords@seanet.com
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