It could be that the jet is not centered. This would cause the needle to
rub up against the jet enough to keep the piston from making that nice
"thunking" sound as it falls all the way to the bottom. To remedy this,
there is a tool that is inserted in the piston where the needle is located
(obviously you remove the needle first) that serves to center the jet. A
friend of mine has one of these tools that I borrow. I'm not really sure
where they can be purchased though.
Jeff Church
-----Original Message-----
From: Palmer Family <amesfolks@snovalley.com>
To: mg list sprite <spridgets@autox.team.net>; Mg List <mgs@autox.team.net>
Date: Thursday, July 16, 1998 7:09 PM
Subject: SU damping
>Hey listers, My rear piston on my SU carbs at any RPM is about a 1/4 inch
>higher than the front one. I have tried all the screws, and have even
>adjusted the mixture to cure this problem. My question is, could it be the
>damper oil? If they are at different levels, will one be higher??
>
>signed,
>BARRY PALMER
>amesfolks@snovalley.com
>72 MG Midget (Sparky)
>http://members.xoom.com/mgboy
>
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