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Re: hot carb - rough running - HELP

To: rmason@ro.com
Subject: Re: hot carb - rough running - HELP
From: mgbob@juno.com (ROBERT G. HOWARD)
Date: Fri, 20 Jun 1997 11:18:32 EDT
On Thu, 19 Jun 1997 17:16:32 -0500 Rich Mason <rmason@ro.com> writes:
>Help!
>
>'73 MGB (HIF-4's) been running great until today.  This morning - it 
>started
>running rough at a light about 1.5 miles from home - actually stumbled 
>and
>stalled.  Restarting required choke - unusual for this distance with 
>70
>degree ambient temperature.  I continued in to work - another 6 miles 
>-
>requiring 1/2 choke to keep it from popping and sputtering.
>
>The ride home (84 degrees ambient) required a small amount of choke 
>the full
>way also.  In examining the carbs - the rear is VERY hot to the touch 
>and
>the piston appears to be approx. 1/16 - 1/8 inch higher with flow 
>balanced
>between the two.  Any ideas as to what could get the rear carb so hot
>(compared to the front)?
>
>One other thing - now that the temperature is on the rise - the 
>temperature
>gauge looks on the low side of normal - not sure what t-stat (if any) 
>is in
>there - that's one of this weekend's tasks as well.
>
>Thanks,
>
>Rich Mason
>'73B
>Huntsville, AL
>___________________________________________
>e-mail----> rmason@ro.com
>home page-> http://ro.com/~rmason
>MG Page---> http://ro.com/~rmason/mgpage.htm
>____________________________________________
>
>
Rich, 
First thing I would check is, strangely, the ground strap to your engine.
If the ground has ungrounded, the electrical system will try to ground
through the throttle cable, among other places, and it will get sizzling
hot before it burns through. The cable connects close to the rear carb on
our 72.
I put a 190 stat in our '72 B during the winter. Despite what I have
read, I find now that the temp is just where it belongs in this warm
weather. 

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