[TR] 59 TR3A - Sputter Update

Alex ambritts at bellsouth.net
Wed Apr 16 18:06:35 MDT 2008


Hi Jerry,
All good things to look for. Yes, the carbs were recently rebuilt. 
Everything new. Does not mean everything is correct. However, the car ran 
well for the first 2000 miles. I did have some leaking issues with the seals 
that attach the bowels to the carb body. Before I attack the carbs, I want 
to make sure I eliminate all the electrical issues. I can however inspect 
them with the filters off. When I move to this side of the engine, that's 
where I will start.
Alex
----- Original Message ----- 
From: "Jerry Van Vlack" <jerryvv at roadrunner.com>
To: "Alex" <ambritts at bellsouth.net>
Sent: Wednesday, April 16, 2008 7:45 PM
Subject: Re: [TR] 59 TR3A - Sputter Update


> Alex,
>
> Have you rebuilt the carbs or had them done recently? There are some kits 
> out there that have the wrong thickness washer in them and they cause the 
> jets to sit too low and cause a rich mixture. Look in the throat of the 
> carb and with the choke fully off the jets should be flush with the bottom 
> of the carb. If they are not you have a too thick washer in the jet 
> assembly which is lowering the jets and thus making the mixture too rich. 
> Sooty plugs are caused by a too rich mixture. Also are the float valves 
> fully closing or is fuel being allowed to weep by? Again too much fuel.
>
> Another item that can cause the jets to be too low is an improperly 
> adjusted chock cable holding the jets down. Weak return springs can also 
> cause this. Try manually pushing the jets up and again look in the carbs 
> to see if they are flush with the bottom of the carbs.
>
> I have fixed a local owners rich running TR2 due to these very reasons. 
> Yours may be different but I'd be looking at the jets position relative to 
> the carb body as a first step. A backassed way to fix this is to lower the 
> needles in an attempt to get them in the proper relationship with the jets 
> as they retract when accelerating. Doing that is a guessing game at best 
> but way to get the car to run a little better.
>
> Hope this helps.
>
> JVV
>
> ----- Original Message ----- 
> From: "Alex" <ambritts at bellsouth.net>
> To: "Triumph List" <triumphs at autox.team.net>
> Sent: Wednesday, April 16, 2008 7:31 PM
> Subject: [TR] 59 TR3A - Sputter Update
>
>
>> Well today did the following:
>> 1. reset the spark plug gap to .032"/Bentley - forget that-ran worse. 10 
>> mile
>> run-plugs badly sooted.
>> 2. Changed out the dizzy cap with new - no change.
>> 3. Changed out the spark plug wires with new cap- no change.
>> Not much left on the electrical side and on this side of the engine 
>> except:
>> 1. timing
>> 2. low tension lead
>> 3. compression check
>> Maybe tomorrow.
>> Alex
>> P.S. - Going out in the garage use to be mental health exercise. Starting 
>> to
>> question that concept.
>> _______________________________________________


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