BridgePorted12A

iTrader: (6)

Hey, just got the car, here's the issue: Car starts right up when cold, but doesn't want to when at operating temp. The engine turns over, but won't fire, very odd. Took it to a mechanics shop and he seems to think it has somthing to do w/ the starter. BTW it's not the battery or alternator. I know this is not too much info, but the 85 rx-7 are pretty simple. What do you guys think??

PS-info in sig


Ryan

Kentetsu

If the motor is turning over fine, then the issue is not your starter. I would recommend that you check your timing, if it is off a bit then it can lead to hard hot starts.

BridgePorted12A

iTrader: (6)

Thanks, that's what I/ the mechanic thought too

OneRotor

iTrader: (3)

check compression too, i've heard that hard hot starts can be caused by low compression

IanS

iTrader: (4)

I thought that cold starting problems were from low comp, since they build up some compression when they warm up. I also assumed that this is why they (FSM) tell you to check compression when engine is at normal operating temperature.

Tsi_Xtreme

Could be your side seal springs are worn out causing low compression which is causing it to have hard starts.

juliankirk

I had the same exact problem last year -

i changed the fuel filter - and that fixed the problem.

BridgePorted12A

iTrader: (6)

Really?? Fuel filter huh? Why would this be, just wondering and thanks for everyones input. About the compression, my brother (Goodfellafd3s) just bought a mazda compression tester for rotaries, so I'll be able to tell.

Ryan

Roundabout

iTrader: (8)

whenever I buy a car, no matter what, I always replace the fuel filter, plugs/wires/cap&rotor, oil and filter. it may be the fuel filter, but that isn't always the case. sounds to me like timing or low compression like stated above