Testing engine while out of car?
#1
Rotary Freak
Thread Starter
Testing engine while out of car?
Other question is how can I tell if the engine has good compression. I turned it over with a wrench on the front pulley nut and heard hissing sounds. Then I felt the apex seals by hand and all were smooth and had slight amount of springage but allitle inconsistent with some others I felt. Some were tighter others were noticably springy.
#4
Rotor Head Extreme
iTrader: (8)
Re: Testing engine while out of car?
Originally posted by von
Other question is how can I tell if the engine has good compression. I turned it over with a wrench on the front pulley nut and heard hissing sounds. Then I felt the apex seals by hand and all were smooth and had slight amount of springage but allitle inconsistent with some others I felt. Some were tighter others were noticably springy.
Other question is how can I tell if the engine has good compression. I turned it over with a wrench on the front pulley nut and heard hissing sounds. Then I felt the apex seals by hand and all were smooth and had slight amount of springage but allitle inconsistent with some others I felt. Some were tighter others were noticably springy.
Based on this info, I take it you don't plan on rebuilding the engine any time soon right? If so, you can perform this cheap technique to free the slightly sticking apex seals.
https://www.rx7club.com/showthread.p...5&pagenumber=1
It's the last post of the page. Keep in mind that I've done this myself my 13b engine w/74k miles while it was out when I replaced my clutch. This can greatly increase the compression of an engine thats been sitting up for a long time.
#5
Moderator
iTrader: (2)
try what i did once: take the plugs out, get a long bolt that will screw into one of the holes that mount the pressure plate to use as a handle, now turn in the direction it runs like a crank. u can turn it this way just as fast as a starter will and listen for the compression sounds out the plug holes.
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#9
Rotary Enthusiast
iTrader: (3)
Two things you can use a coperssion gage and remove that little valve and watch closely the needl bounce, or you can build your own compression test for less 20$ the only draw back is you need a scopc to bring it all to gether, I posted how to do this some time a go. THAT EAR **** REALY DON'T WORK you will but a lot of time into something that is all ready been dead.
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