The difference with a new set of needles is truly remarkable. I was running
chronically lean. My 69 had some interesting mods prior to my ownership.
The carb pistons had been replaced with later model ones to allow adjustable
needles, but B1AF is a much leaner needle than the B2Y called for in the 69.
Last weekend my new set of B2Y's arrived and I ground down the sealed top of
the fixed housing assembly and removed the needle from the insides. I
disassembled the adjustable housings from the B1AF and replaced those
needles with the new ones. Upon reinstallation I have adjustable B2Y's.
My idle is absolutely stable. Much better acceleration at highway speeds.
The engine runs noticeably cooler. Cold starting is easier and time
necessary to get to "turn off the choke" is reduced to nearly nothing.
These results are product both of new needles, but also right needles.
Jim Altman jaltman@altlaw.com Illigitimi non Carborundum
http://www.altlaw.com/metro/jaltman.html 69-TR6#CC28754L W4UCK
> -----Original Message-----
> From: owner-triumphs@autox.team.net
> [mailto:owner-triumphs@autox.team.net]On Behalf Of Bud Rolofson
> Sent: Monday, April 19, 1999 3:27 PM
> To: Philip E. Barnes; triumphs@autox.team.net
> Subject: Re:Stromberg needles
>
>
>
> Phil
>
> The stock needle is a B1AF for post-69 TR6s with stock
> Zenith-Strombergs. I
> would install new jets only if they are worn e.g. have an
> oval looking hole
> instead of a round hole. This is a job you can do although
> the carbs have to be
> off the engine. Bob at Apple Hydraulics can sell you the
> correct needles, jets
> and a tool to help you install the jets. If you decide to do
> it let me know and
> I'll give you a couple of tips that I learned replacing the
> jets in my carbs.
>
> Bud
> 71TR6 CC57365
> 71TR6 CC65446
> 66TR4A CTC57806
>
> ____________________Reply Separator____________________
> Subject: Stromberg needles
> Author: "Philip E. Barnes" <peb3@cornell.edu>
> Date: 04/19/1999 11:40 AM
>
>
> I would like to replace the needles in my carbs, since I know
> that one is
> worn oddly. This would probably help me smooth the running
> and eliminate
> some richness. What are the correct needles for '71 TR6? (the
> literature is
> conflicting for type 3385 carbs) Should I think about installing new
> orifices in the bridge as well, or is this a job best left to
> professionals? Any advice is appreciated.
>
> Phil Barnes (peb3@cornell.edu)
> Cortland, NY (nowhere near New York City)
> '71 TR6 CC61193L (22 year owner)
>
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