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What's going on with it? I'm not an expert per se, but I'm down in Tacoma if push comes to shove if you want an extra set of eyes.
I just swapped to an aluminum radiator and dual electric fans, and rebuilt the carb (float had been stuck, carb was just filling the engine with fuel just sitting with the key ON running the pump), went for a drive afterwards, got about 15 miles down the road and it started running like ****. Doesn't want to rev above 3k, doesn't sound right. Would die shortly after I would start it. I finally tracked down that the fuel pump wasn't turning on, fuel pump tested good. Did the relay bypass (like earlier cars) and now it'll stay running but still doesn't sound right. Pulled the exhaust manifold and looked at all the apex seals, they're all there and springy. Can't tell if there's any cracking. Don't have a rotary compression tester but using a piston one it looks like 90-100 on the front rotor and 75-85 on the rear.
Sounds like its running on one rotor to me. Have you checked for spark?
That was my suspicion based on how it sounded and felt also. I've checked for spark both leading and trailing on both rotors and it looks good. Plugs are fairly new.
(Haven't had time to do the FSM procedure for fuel flow yet)
Curious about coolant temperature sensor #2, trying to figure out if the engine uses that radiator coolant temp. Mine broke when being removed from the original radiator.
Sounds like a blown motor or stuck apex/side seal. The 3mm ones often had these issues from sitting. Those numbers, although not entirely accurate, show a blown motor or stuck seal.
Sounds like a blown motor or stuck apex/side seal. The 3mm ones often had these issues from sitting. Those numbers, although not entirely accurate, show a blown motor or stuck seal.
Figured out the coolant temp sensor #2 question, sounds like it's for the ECU to control the air injection pump related hardware, not applicable to my setup.
I was fearful of blown motor... looks like rotors are pretty spendy to replace? The engine has about 120k miles on it, what are the odds that the apex seal grooves are beyond their wear limit with a motor with this sort of mileage?
Thanks.
