perfect_circle

i might be getting another rx7 soon. but the car doesnt run well, it has a vacuum leak, and idles at like 2500 -3000 the guy said, i was wondering if you could tell me what i could check to fix this. there are no emmisions, and the cats are gone.
all incite is welcome. thanks guys

EDIT:insight(i know i cant spell)

FYI: i am searching

Paradox

iTrader: (1)

its been covered quite a bit, people here tend to like spraying carb cleaner around and wait for the rev's to go up to find the vac. leak. i suppose this works, you could also try those "smoke in a can" things they have them at autoparts store i believe. just let er rip and see where the smoke goes. or just buy a fat cigar and puff away and do the same..

however i cant really see why a vac. leak would cause a idle that high, is it carbed? try adjusting the idle/mixture screw.



g'luck

perfect_circle

how would i tell if there was a vacuum leak, by spraying carb cleaner, where do i spray it

Dan_s_young

iTrader: (1)

around the base of the carb and around the intake (make sure to keep it away from the exhaust it is flamable...) you will hear the rpms increase if theres a leak

Rogue_Wulff

Just a light spray around anyplace that a leak is suspected. If the leak is sprayed, the idle speed will increase, and the engine will smooth out for a few seconds. Just don't go overboard with the amount sprayed on hoses and such, or any painted surfaces.

RX-4X4

I have the same problem. I just swaped a 12A out of an 85 into a 88.5 Samurai. Ran like good for the guy I got it from then a modual went out. The guy did everything to get it running again. What that entailed I don't know. However I have it running and it won't idle down so I can set the timing. I know there has to be a vacuum leak. So I plan on tossing the rat nest and trying to find the leak that way frist. But I would like to hear more on the idle problem. I have been searching the achieve. Also the thottle is slow. I mean, I hit the gas and the RPM's climb slowly.

Thanks