Hi
The most common diagnoses for guides is blue on first start-up in the
morning, oil running down the guides overnight and blue on deceleration,
high vacuum and lots of oil around the top due to elevated rpms. if it is a
ring thing as you suspect, why do you suspect no 2 cylinder, do you have oil
fouling on the plug or some other reason to blame no 2 cylinder.
You may get oil smoke at sustained high rpm's just because of the extra oil
available to run down the guides from the valve train, especially if the
lubrication of the rockers etc is working well.
Graham.
----- Original Message -----
From: "R. Ashford Little II"
Subject: RE: Blue smoke and good compression
> OK, first of all thank you for your opinions. BUT, I need to pose
> another question so I can get's me a little "edumaction." Basically, I
> have a question as to whether the blue smoke is being caused by a
> worn/bad oil ring in number 2 or as most have said by worn valve guides.
>
>
> The question is this: since I get more smoke at upper rpm's, but the
> manifold vacuum pressure is less at upper rpm's than at idle, then why
> doesn't it smoke more at idle than at those elevated rpm's?
>
> If we are using manifold pressure as the source to pull oil down the
> guides then it would appear that it would smoke at low to mid rpm's more
> than at high rpm's.
>
> I truly hope I'm missing something basic here since head's are cheaper
> than engine rebuilds.
>
> Thx,
>
> R. Ashford Little II
>
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