Quote:
Originally Posted by jase386
i dont have the equipment to check the rpms. its low though like its always been. this engine doesnt seem to rev high at all, ever.
what does the manifold heat valve do? i saw it on there, will have to make sure its opening.
ive read about these transmissions and that people always think they are shifting too early, but its the grumble from the engine that made me think something was wrong. I wish j Cat was near SC and id bring it over..
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the heat riser valve on the exhaust exit closes when the engine is cold. when the engine temp rises to about 160 deg f it will snap open ..
at this age now , most of these valves , have long since been locked into the full open position ...this is because the hardware has rusted to nothing left..I used stainless steel .030 wire to lock it open ..