[TR] 61 TR3A SU H6 Carb Issues

Jim Henningsen trguy75 at gmail.com
Tue Oct 16 07:11:34 MDT 2018


Everything was running smooth before the rebuild.  The choke wouldn't pull out easily at all and it leaked a little oil.  So I decided to pull the carbs and install a kit as the seals were quite old based on prev owner service.  I do have the stethoscope for the car to listen.  I don’t think it is the balancing of air flow.  With old cars, I know anything can happen somewhere else (points, plugs, wires, fuel, vacuum leak etc.) that can cause a new issue even if you didn't touch those systems.  Looks like its time to test all systems again step by step.
Thanks for the note.
Jim

-----Original Message-----
From: John Macartney <john.macartney at ukpips.org.uk> 
Sent: Tuesday, October 16, 2018 7:15 AM
To: 'Brian Kemp' <bk13 at earthlink.net>; 'Jim Henningsen' <trguy75 at gmail.com>; triumphs at autox.team.net
Subject: RE: [TR] 61 TR3A SU H6 Carb Issues

I'll chime in with another comment on carb issues which others may not support, but it was given to me by Ray Henderson (Triumph Experimental and Competition Dept). Before attempting any kind of carb adjustment, unless your valve clearances and ignition settings aren't exactly spot-on, you can have 'carb issues' which in reality aren't carb issues. The hose pipe to ear method for air intake volume may sound rather belt and braces, but it's a technique that's been used in the UK by mechanics on SU's (and later Strombergs) for at least the last eighty years! Sometimes the old fashioned way is often the best solution.

Jonmac

-----Original Message-----
From: Triumphs <triumphs-bounces at autox.team.net> On Behalf Of Brian Kemp
Sent: 16 October 2018 04:00
To: Jim Henningsen <trguy75 at gmail.com>; triumphs at autox.team.net
Subject: Re: [TR] 61 TR3A SU H6 Carb Issues

Jim - I'd check with a club in your area.  See http://www.mossmotoring.com/british-car-club/ as a sample that came up in a search.  There is an MG club in your city.  Not sure if any of the Triumph clubs are near by.  You might be able to find a local club member to help you out or recommend a local mechanic.

When I got my TR6, I went to a local British mechanic and he got the car better, but after just a few minutes with a very experienced club member, the carbs were great.

Brian

On 10/15/2018 4:40 PM, Jim Henningsen wrote:
> Ok, I thought I had this rebuild all nailed down.  Finally got around 
> to getting carbs balanced and set for correct mixture.  After new 
> kits, testing piston drop timing per John Twist you tube clip (great 
> clip), and spending two hours fine tuning air flow and mixture.  The 
> carbs aren't running smoothly.  There is something not right and I am throwing in the towel.
> Don't have a reliable mechanic that I trust for this in Ocala.  Any 
> recommendations on a rebuilder to send these two to have them checked 
> professionally.
>
> Joe Curto?
> Jeff Payla at Paltech - cant seem to get a response from him.
> Buy new (ouch)
> Others?
>
> Thanks in advance
> Jim Henningsen
> Ocala FL
> 61 TR3A  eager to enjoy driving it in fall in Florida
> 62 TR4 eager to have restoration finished
> 75 TR6 eager to have new race motor put in
> 82 Jeep ld reliable - get in and go
> 2002 Triumph Trophy 1200 eager to just get out and be used.
>    
>
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