I have a '93 RX7 standard trans. all stock w/115,000 miles. It starts when cold, but I have an awful time starting it when it's hot. Any suggestions??
Jo-Annd

 

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How's the condition of your battery? Some batteries, especially if approaching the life cycle limit, tend to deteriate faster because of the heat generated by the rotary engine.

It could as be something else, maybe ignition coil, module? Not enough information is given to make an evaluation. Does it smoke, what color, how is the gas mileage? Does the engine cranks and backfires? Need more information please.

Looks like allot of mileage, but if taken care of properly, shouldn't be a problem. Are you using regular engine oil or synthetic and how often is it changed? Reason, apex seals may be seized due to gunk? Do a compression test to find out, low readings on adjacent rotors and high on one indicates this condition.

Then you need to do a ATF injection about 2 oz in each rotor, leave over night and restart next morning.

Depends, don't know which category your are in??