Jim,
Thanks for all your suggestions. In retrospect I suspect that I could
have solved my leak problem by trying to analyze exactly what was
causing the leak and attacking that.
However, I did decide the rebuild rout since I only wanted to deal with
the carbs once if possible. I got all the parts locally (a supplier here
stocks Moss rebuild kits) and was able to do the rebuild in a weekend
(my first time, next time will be much quicker). I just tuned the carbs
today and took the car out for a spin.
Needless to say the difference in awesome. Apart from the lack of leaks,
the car runs much smoother. It is quite a nitceable difference. I would
highly recommend a rebuild if your carbs are fairly old and the rest of
your car is tuned up (ie. ignition and valves). You will be quite
pleased.
It would definitely make a great winter project. Only down side is that
you'd have to wait til spring to enjoy the fruits of your labor.
Take care,
Peter Zaborski
76 TR6 (CF58310 UO)
Calgary AB Canada
> -----Original Message-----
> From: JimG1375@aol.com [SMTP:JimG1375@aol.com]
> Sent: Saturday, August 09, 1997 9:06 AM
> To: peterz@merak.com
> Subject: Triumph Carbs
>
> I read your contribution to the Triumph news group concerning wanting
> to keep
> your car running but still having problems with your gas jets and have
> an
> experience to share with you. Maybe it will help.
>
> I recently obtained a 64 TR4 (Zenith Stromberg carbs) and I began to
> prioritize what I needed to do in order to keep the car running while
> I
> restored it. Like you, I decided to wait to rebuild the carbs until
> Winter
> so I could get maximum time driving the car for now.
>
> The problem came when I noticed the car running rough and dying out at
> stop
> lights during the second weekend that I had the car. When the car was
> at a
> low idle, gas would spew out of the air filter and the engine would
> start to
> die out.
>
> I first contemplated a carb rebuild, but after reading through the
> Haynes
> manual, this seemed like a lot more work than I wanted to take on
> while I
> still had more pressing things to start on with the car. I decided to
> take
> apart the float chamber to see what the problem might be.
>
> It turned out that the gas needle valve was malfunctioning and causing
> gas to
> flow at all times into the float chamber. The metal tab on the float
> assembly was also bent and needed to be adjusted. This caused the
> chamber to
> overflow and spew out of the vent hole and out of the air filter when
> the
> engine was at low idle and not using enough gas to keep up with the
> flow.
>
> I replaced the needle valve with a grose jet, adjusted the tab to the
> specs
> given in the manual and replaced the float chamber gasket, as the old
> one got
> pretty chewed up, and this solved the problem. I have since put at
> least 200
> miles on the cars since with no problems. I was lucky in that I have
> a few
> local suppliers here in San Jose that have some of these parts
> available, but
> you might just take out the needle valve and clean it out to see if
> that
> might do the trick9 from what I hear though, this might not work). As
> for a
> gasket, you can go to any decent auto parts store and get some gasket
> material and cut your own. Just take the lower float chamber cover
> clean the
> lip and coat it with lipstick (check with wife or girlfriend on this
> one).
> Place the lip on the gasket material, being careful not to move it
> once it
> hits the gasket material in order to make a good 'fingerprint'. After
> that
> you should have an exact pattern to cut out with an Exacto knife or
> razor.
>
> I hope that this can help you get through the rest of the driving
> season
> without having to rush through a carb rebuild. If you want to wait
> till next
> weekend you should order a couple of gaskets and Grose jets from
> Roadster
> Factory or some other supplier for about twenty (probably thirty
> Canadian)
> and you can really nip the problem without having to rush your rebuild
> right
> now. I don't know about you, but if I am going to go through the
> trouble of
> a rebuild, I would want to take my time and do it right. As long as
> the car
> can drive right now and you are not doing any harm to it, it is worth
> taking
> care of the short term problem and waiting to do the rest.
>
> Good luck. I subscribe to the news group digest and have not figured
> out how
> to post a letter yet, so I figured I would just respond to you
> directly. If
> you would like, you can post this response.
>
> Cheers,
> Jim Gerakaris
> 63 TR4 CT28595L
>
>
>
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