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RE: Engine issues

To: "'Navarrette, Vance'" <vance.navarrette@intel.com>
Subject: RE: Engine issues
From: "R. Ashford Little II" <70TR6@mindspring.com>
Date: Thu, 5 Oct 2006 19:07:25 -0400
Hey Vance,

Plug gaps - checked, rechecked, fresh plugs installed.

Emissions - my car really has had no emissions stuff on it in years.  Up
until yesterday the crankcase was venting to the atmosphere.  I reconnected
the hoses to route them back to the carbs.  I haven't driven the car since
this change.

Valves - these have been checked and are in good shape both the valves
themselves and the clearances.

Supplemental oiler - not running one.

Camshaft condition aka flat lobe - this is a distinct possibility.  The
condition of the camshaft is unknown and stock afaik.

Richard - not me, I go by Ashford. LOL.

So where do I stand?  Well, I've been threatening to rebuild my engine for
three years now.  With the troubles I've been having, this may be the year.
The head was done last winter, but the bottom end left alone.  I think it's
telling me that something is not happy.

Engine rebuild - I've been looking forward to putting in one of Richard
Good's cams for several years now.  This might be the year.  However a wild
card has entered the picture.  A friend just had an engine swap performed
that I had wondered about for the past five years or so.  Hint, it's modern,
it's fuel injected, and it's and inline six.


R. Ashford Little II
'70 TR6, 73.5 911


-----Original Message-----
From: Navarrette, Vance [mailto:vance.navarrette@intel.com] 
Sent: Thursday, October 05, 2006 4:56 PM
To: R. Ashford Little II
Cc: 6pack@autox.team.net
Subject: RE: Engine issues

        Richard:

        Have you "rounded up the usual suspects"?

        Check the plug gaps?
        Verified that the #2 plug is the same type as the others, and
verified the heat range of the plugs?
        The compression check says that the rings are OK.
        If your emissions stuff is connected, are you getting oil into
the intake manifold through the emissions connections? Pull the hoses
and look for oil in them - oil in the top end can go through the
breather and into the carbs.

        Other stuff to check:
        Are your valves operating correctly on #2? If you lost a lobe on
your camshaft you could see issues. Interestingly, it was my #2 cylinder
that had a flat lobe (exhaust valve).
        Are you running a supplemental oiler? Try removing it and see if
that changes anything. 

        Vance

-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net] On
Behalf Of R. Ashford Little II
Sent: October 05, 2006 10:49 AM
To: Triumph Email List; 6pack
Subject: Engine issues

I'm trying to diagnose an issue I'm having with my TR6.  I took the TR
on a
fairly lengthy trip recently and was having problems with #2 fouling
out.
I've always had issues with #2 and thought that a recent rebuild of the
cylinder head might rectify the situation.  I was wrong.

 

So with this in mind I did a compression test last night and came up
with
the following figures - dry.  Btw, the head was shaved to achieve a 9:1
compression ratio.

 

#1 - 180

#2 - 180

#3 - 150

#4 - 155

#5 - 165

#6 - 180

 

Obviously #2 doesn't have a compression issue.  Aside from the variance
in
the cylinders, I suppose I'm looking at a bad ring or broken ring to
keep
coming up with oily #2.  Am I missing something else?  I didn't check
the
discumbobulator and the hyperspace module is in good working order.

 

Ideas?

 

R. Ashford Little II




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