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Bought Another RX-7, Engine Turns Over Very Slowly

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Old May 29, 2007 | 05:47 AM
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blackspade13's Avatar
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piston vs rotary? Rotary!
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Bought Another RX-7, Engine Turns Over Very Slowly

I just bought another 7, it has 151,000 miles and the motor is turning over really slow, possibly a blown apex seal????? any advice will help, thanks
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Old May 29, 2007 | 08:55 AM
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Aaron Cake's Avatar
Engine, Not Motor
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What is the condition of the battery, battery cables, and connection to the starter?

I've also edited your subject line from something thoroughly undescriptive like "13b help" to a more appropriate subject. In general, you will get better answers if you include a real subject line.
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Old May 29, 2007 | 08:57 AM
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hanman's Avatar
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Actually a blown apex seal will allow the engine to turn over easier.

I would guess battery cables, or battery.
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Old May 29, 2007 | 09:09 AM
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classicauto's Avatar
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"I just bought an RX-7 and one of my headlights doesn't work. Do I need new apex seals because everyone I know tells me thats the problem with these cars."

__________________________________________________ ______

Battery
Battery terminals
Starter connections
Starter motor

^those are the possible causes as mentioned.
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Old May 29, 2007 | 11:17 AM
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blackspade13's Avatar
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Ok so what would cause me to have 95 in the front and 0 compression in the rear???
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Old May 29, 2007 | 11:20 AM
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stuck seals
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Old May 29, 2007 | 02:45 PM
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Aaron Cake's Avatar
Engine, Not Motor
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Originally Posted by blackspade13
Ok so what would cause me to have 95 in the front and 0 compression in the rear???
Now that sounds like a problem.

If it's been sitting, seals could have stuck. Get some oil into the spark plug holes and try rotating the engine to build up compression. If that doesn't help, then it's probably rebuild time.
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Old May 29, 2007 | 02:58 PM
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Carzy Driver's Avatar
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Originally Posted by blackspade13
Ok so what would cause me to have 95 in the front and 0 compression in the rear???
that would not cause the motor to turn slower, actually faster because of the lesser compression. also, your compression readings will not be accurate if the motor is not turning fast enough, I believe recommended speed is 250 rpm. get the engine spinning first then worry about the compression
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