[6pack] TR6 Mistery Miss

[Dale]

Darrell

Yes the Trials were great except for the rain on Saturday.

I assume
that you have already tried to tighten all the related intake and 
exhaust
manifold studs. If that is the case then I would suggest removing the 
exhaust
manifold and laying a straight edge across the ports. You may find that 
it
has warped. If this is the case then it needs to be shaved till it is flat
across the ports.

Some headers have had this problem in the past and adding
extra gaskets does not 
solve the problem.

Dale
________________________________
From: "TR250Driver at aol.com"
<TR250Driver at aol.com>
To: triumphs at autox.team.net
Cc: 6pack at autox.team.net
Sent: Mon, September 13, 2010 3:39:12 PM
Subject: [6pack] TR6 Mistery Miss

Hi
Guys,
I took the TR6 south to Oxford, OH for the 6-PACK Trials last week, 
probably less 600 miles total.  The Trials were great.  The Six had a  few
issues. 

The first was a low RPM miss that caused her to chug some when 
accelerating.  Usually in 3rd or 4th with OD engaged but not  always.  She
would 
chug 

some regardless of speed but usually below  2500 rpm's.  Once
above that she 
seemed happier with only a few  chugs. Not enough of a problem
to leave me 
on the side of the road but very  annoying. 

So I pulled the
Bosch Platinum WR7dp plugs : #1 thru 4 look reddish  brown, 
#5 is brown & #6
is bright white.  I must be sucking in some air  back 
there, Huh?  From the
manifold gasket?  I hate to just start  ripping into that 
w/o the wisdom of
the List but the bright white is an  indicater of a lean 
condition in that
cylinder, correct? What else  could it be?  The Six also 
got very hot once
when I let her idle for 5  minutes which would confirm a 
lean condition.

I
have had this problem before with the Six and also the TR250.  Seems  
like
they both want to blow up manifold gaskets.  What am I doing  wrong?  I 
have
tried the method of putting two gaskets on back to  back. I forget which 
way
they go it's been so long.  I only have one on  now.

Any Tips are
appreciated,
Darrell 
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