[TR] High rpm

[staffel at comcast.net]

Hi Cosmo!
Since the TR3/early 4's don,t have the temp compensator of stromberg CD2's when malfunction also causes a 2000rpm 'idle'; the most likely culprits are as said the sticky piston or mis-sync-ed carb throttle shafts. 
On the 1st- clean the piston, the bore, the dashpot guide (top of piston) as varnish can build up; but also clean the bushing in the carb dome top. Also- make sure the dome is concentric- pistons can stick if the dome is 'warped'- and the warp can be misalignment. Racers used to run the dashpits dry in the 60's I was told.

Make sure the 'spring clamps'  between / connecting the throttle shafts are not cracked or not tightening- or slipping.

Have had both issues on my TR4 and jensen healey/GT (lotus 907's) , triple carb 6 cyl Jag E's,and 4carb jag V-12 
Sherman
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