Thanks to all who took the time to respond to my questions. I've heard
from a great many people on this list and most all of them have leaned
towards valve guides. I'm also having to educate myself on some of the
inner workings of the engine - which is good.
I also need to understand the problems, issues, and solutions so that I
make an educated response to the problem. Through your help and others
I think this will happen. Thanks very much to and for this list.
R. Ashford Little II
www.geocities.com/ralittle2
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net] On
Behalf Of R. Ashford Little II
Sent: Monday, November 18, 2002 5:23 PM
To: 'Randall Young'
Cc: 6-Pack; Triumphs@autox. Net
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
www.geocities.com/ralittle2
-----Original Message-----
From: Randall Young [mailto:ryoung@NAVCOMTECH.COM]
Sent: Monday, November 18, 2002 4:48 PM
To: R. Ashford Little II
Subject: RE: Blue smoke and good compression
I agree, most likely cause is worn intake valve guides, allowing oil to
be
sucked in by manifold vacuum. Another, less common cause is blowby
forcing
oil mist into the crankcase vent system, and eventually into the vacuum
fittings on the carbs. You can actually have a fair amount of blowby
and
still have good compression readings.
Randall
> -----Original Message-----
> From: R. Ashford Little II [mailto:ralittle2@mindspring.com]
> Sent: Monday, November 18, 2002 10:06 AM
> To: Triumphs@autox. Net; 6-Pack
> Subject: Blue smoke and good compression
>
>
> Those two things don't usually go together so I was wondering if there
> is a "typical" reason why an engine with good and consistent
compression
> (~145) would blow blue smoke at the upper rpms? It would seem to me
> that if I've got a bad oil ring, in #2 cylinder, then I would have
other
> issues as well that would lead to bad compression. But that's not the
> case. Makes me wonder what else I'll find when the engine comes
apart.
>
> R. Ashford Little II
> www.geocities.com/ralittle2
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