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Re: SU Carb problem

To: Triumph owners list <triumphs@autox.team.net>
Subject: Re: SU Carb problem
From: rgs03@health.state.ny.us
Date: Wed, 19 Jun 96 11:28:24 EDT
Comments: Converted from PROFS to RFC822 format by PUMP V2.2X
*** Resending note of 06/19/96 10:55

>Eric Rupert wrote:
>
>> The problem is, when I hit 60mph gas starts pouring out of the vent of the
>> front fuel bowl.  I think it's a pressure problem since I seems to be
>> driven by engine RPM.
>>
>> Any thoughts?

And T. J. Noto replied:

>Oh boy oh boy....I get to help with something instead of asking FOR help....

>I had the exact same symptom with my MG's SU's and Grose Jets.....it seemed
>the metal tabs on the floats were vibrating and doing EXACTLY what Grose
>Jet says they're parts are supposed to prevent.....not seal the jet shut...
>
>I tried and tried and could not get them to work properly....so I went back
>to the stock needle setup and have not had a problem for 40,000 miles.

Let me second T.J.'s comment. I've tried Grose-Jets and never been happy
with them. I've had two bad right out of the envelope. One, the balls were
stuck shut - no gas into the float, and the other, they were stuck open.
When I did get a set that "worked" they leaked under pressure, just like
Eric's. And no, the fuel pressure was not too high. (it was on a stock TR3
with a mechanical pump.) I went back to the old needle valves and haven't
had a problem since.
Conclusion: I will never use Grose-Jets again.
(As usual YMMV, MHO, FWIW, LSMFT, STP and any other acronym you want to
toss in.)

Rik Schlierer
'58 TR3A
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Paraphrased from Oscar Wilde:
"Science can never grapple with the irrational. That is why it has no
 future in the *British car* world."
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


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