After pulling my great uncles TR4 (but now my TR4 -great uncles are indeed
great) out of a garage where it had been resting for 13 years, I thought it
might be a good idea to rebuild the carbs (only after a short but unsuccessful
attempt at starting it). Horror of horrors, the floats were cracked to pieces.
I could not find replacement floats anywhere. I could locate newer versions of
175 floats (with two arms and a more narrow hinge). Sent them back because they
would not work. In desperation, bought them again and modified them (cut the
extra arm off and made a brass spacer to center the float arm under the valve).
The newer floats do not have as much buoyancy as the old ones. And the arm
alignment with the float valve was less than perfect. Based on this data, I
elected to use Grosse Jet valves (the ball bearing needs less pressure to
actuate, and the ball bearing is less sensitive to misalignment). The edges on
the spacers were rounded to prevent the dreaded sticky float (I've had
occasion to tap on the TR2's SU's to unstick a float once or twice).
Five thousand miles later, no problems or hic ups. It is a great little car.
Christian Simonsen - Virginia, USA
54 TR2 long door - from my uncle, too.
63 Triumph TR4 - This is not your fathers Oldsmobile.
Tip for the day: Wrap a sandwich in foil and tie it over your intake/exhaust
manifold. After an hour or so of driving, you'll have a nicely heated sammy.
Works well with burritos, too.
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