homemade compression tester
homemade compression tester
10-12-09, 08:09 PM
#2
Lil' Red
Join Date: Apr 2008
Location: Raleigh, NC
Posts: 38
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The most "accurate" homemade compression tester would have to be your hand... just hold it over the spark plug hole and see if you feel air when you turn the engine over. 
If I were you I would buy a real one. only about 19 bucks for a real cheapo
If I were you I would buy a real one. only about 19 bucks for a real cheapo
10-13-09, 12:23 AM
#5
http://twistedrotors.com/
He makes a rotary-specific compression tester, even did a group-buy on the rx8club forum a while back and I got one. Worth its weight in gold imho, it's the only definitive way to know the health of an engine. You can tell almost instantly if you've got a bad side seal, bad apex seal, overall low compression or an engine that's good-to-go. I don't know how I managed for so long without one. It's one of those tools (like a timing light or a good fuel pressure gauge) that gives you insight into something that you didn't have a way to know before and removes all the guesswork, letting you move on with your troubleshooting.
Jon
He makes a rotary-specific compression tester, even did a group-buy on the rx8club forum a while back and I got one. Worth its weight in gold imho, it's the only definitive way to know the health of an engine. You can tell almost instantly if you've got a bad side seal, bad apex seal, overall low compression or an engine that's good-to-go. I don't know how I managed for so long without one. It's one of those tools (like a timing light or a good fuel pressure gauge) that gives you insight into something that you didn't have a way to know before and removes all the guesswork, letting you move on with your troubleshooting.
Jon
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