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Re: stumbling

Subject: Re: stumbling
From: Bob Howard <>
Date: Tue, 29 Aug 2006 11:03:34 -0400
   Generally speaking, one can stop using the choke of the HIFs within
1/4 mile of driving in air temp of 55 degrees.  I don't think the
stumbling is related to the choke, though it could be a lean mixture
issue.  Have you checked the dashpots for adequate oil?  There's a
ring/step/marker  molded into the metal about 1/2-5/8" down the hole. 
Oil should be to that point; a bit of excess will squeeze itself out the
   Check that, and also that dwell and timing are correct. 

On Tue, 29 Aug 2006 08:10:01 -0500 Paul Root <> writes:
> After a week of hibernation (part rain, part bad dealings with a 
> painter for my house), I took the MG out to drive to work this morning.
> To start with, I have converted the car to HIFs, and couple of weeks  
> ago,
> when I was messing around with some wires at the firewall,  
> apparently, my
> choke cable shifted and touched the exhaust manifold. Melting it 
> into  
> a little
> mess and stopping me from being able to pull the choke.
> So, it's about 1 1/2 miles to the highway. And though it took some  
> cranking
> to get it started this morning without the choke, I did get it. By  
> the time I
> got to the freeway, the water temp gauge was reading out of the blue 
> area
> of the 'C'. Another 1 1/2 miles, go by and I start getting some  
> stumbling.
> It rev's ok, but when there is a load, it's not so good. This is  
> about 60 mph.
> Oh, btw it's a cool morning 55F (12-13C). Naturally, I'd just past  
> the exit. So
> I continue on another mile, turn off and take surface roads the way  
> back home.
> It had no problems there.
> I'm thinking this is just poor warmup, and when I get the new choke  
> cable (came
> yesterday), installed, all will be fine.
> Anyone have any other theories?
> There's a chance I could find the hour I'd need to get under the 
> hood  
> tonight,
> otherwise, it's more likely to be the weekend. :-( I guess I gotta  
> give up on that
> sleep thing...
> School starts for the boys today.
>     _______   Paul T. Root
>    /     __\  1977 MGB
>   /   /||  \\
> | |\/ ||  _ |
> | |   ||   ||
>   \    ||__//
>    \_______/

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