[TR] TR4 engine question

[David P]

Probably..because the engine needs fuel to burn, your carb pistons are 
not returning to full down position allowing too much fuel through and 
as Dave said carbon deposits or very hot

edges  on the gasket bore periphery are igniting the fuel. First try 
leaning the mixture, reducing the idle speed, set ignition timing and 
points to factory specs and precede this with a thorough tune up with 
new plugs, points and condenser.... Dave, the other

On 2/26/2019 8:21 AM, dave wrote:
>
> I am by no means the best mechanic, but I can tell you this advice is 
> just wrong.  You are band aiding the problem.  I would try a higher 
> grade gas, or maybe even just getting out on the freeway and trying to 
> burn off the carbon deposits.  Possibly retarding or advancing the 
> timing? These cars don’t necessarily do that, and if yours does there 
> is a solution.
>
> Here is a guy who knows what he’s talking about: 
> http://mgaguru.com/mgtech/engine/ro101.htm
>
> Its not a Triumph, but it’s the same concept
>
> *From:* Triumphs <triumphs-bounces at autox.team.net> *On Behalf Of 
> *DAVID MASSEY
> *Sent:* Tuesday, February 26, 2019 6:34 AM
> *To:* trguy75 at gmail.com; Triumphs at autox.team.net
> *Subject:* Re: [TR] TR4 engine question
>
> First off, congratulations on your win.
>
> Secondly, do what I do.  Put the car in fourth gear and let the clutch 
> out as you switch off.  Be sure to set the brake first.  My TR6 
> diesels even with the anti-run-on valve. So does the TR3.
>
> Dave
>
> -----Original Message-----
> From: Jim Henningsen <trguy75 at gmail.com <mailto:trguy75 at gmail.com>>
> To: 'triumphs' <Triumphs at autox.team.net <mailto:Triumphs at autox.team.net>>
> Sent: Mon, Feb 25, 2019 9:41 pm
> Subject: [TR] TR4 engine question
>
> Fresh TR4 engine that does that "dieseling" thing after you turn off the
>
> key. It like it tries to keep running but with a cough and then 
> stops.  The
>
> TR6 has an anti-run on valve to help with that.  What do I treat on a TR4
>
> motor? P.S.  So proud that after 8 years putting my 4 back together stock,
>
> I won first place in the sports car group at the AACC winter national.
>
> Thanks
>
> Jim Henningsen
>
> Ocala, FL
>
> 61 TR3A
>
> 62 TR4
>
> 75 TR6
>
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