Low compression on '87
Thread Starter
Junior Member
Joined: Dec 2011
Posts: 18
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From: Sacramento
Low compression on '87
I ran a compression test and all of the pulses were even at about 95. What im trying to figure out is what SHOULD the compression be? Also if you have any diagnostics as to why im getting even pulses at 95 would be appreciated. Thanks
bcrotary.
Joined: Jul 2010
Posts: 513
Likes: 1
From: Abbotsford, British Columbia
95's still considered healthy. So, once you get into the 80's, start saving for your rebuild kit.
From: http://www.aaroncake.net/RX-7/blown.htm
From: http://www.banzai-racing.com/compression_test.htm
From: http://www.aaroncake.net/RX-7/blown.htm
You are not looking for excellent numbers, just three even bounces above 70 PSI.
3 even bounces of 85 PSI or above is GOOD. Readings above 110 PSI is GREAT!
3 even bounces of less than 85 PSI: indicates that motor is tired, and indicates engine should be rebuilt before causing damage to rotors or rotor housings.
3 even bounces of less than 85 PSI: indicates that motor is tired, and indicates engine should be rebuilt before causing damage to rotors or rotor housings.
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