2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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Im new and need some help

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Old 06-25-06, 09:12 PM
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Im new and need some help

Well i just bought 3 rx7's none of them run, well one does but i have to pull start it. I cant figure out why? the fuel pump is working and has spark. it just turns over hits a coulple times while turning over but never starts. i can roll start it and it runs good at idle (sometimes a little lumpy) and good in reverse but it runs like crap if all the foward gears. if just falls on its face. i woud appreciate the help. thanks.
Old 06-25-06, 10:06 PM
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REST IN PEACE DAVE!!!!!!

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how old is the gas?
Old 06-25-06, 10:28 PM
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it has new gas.
Old 06-25-06, 10:43 PM
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get it compression tested first.
Old 06-27-06, 10:01 PM
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compression read 95 in front rotor and 50 in back.
Old 06-27-06, 11:04 PM
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hmmm compression is fine up front, but you have too little in the rear, its rebuild time. or very close to it if you value the rear rotor and housing
Old 06-27-06, 11:10 PM
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When doing the compression test, hold the release valve down. This way you can see numbers from all 3 rotor faces. If you don't hold the release valve down, the gauge will only read the highest psi. So your 50 psi compression could possibly be 0-50-0.
Old 06-28-06, 01:02 AM
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Originally Posted by FirstRotaryExp
hmmm compression is fine up front, but you have too little in the rear, its rebuild time. or very close to it if you value the rear rotor and housing
50 on the rear is a blown motor




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