240Z, 260Z, 280Z Performance / Technical Discussions related to performance motor enhancements, upgrades.

Cylinder compression check question

Old 11-21-2015, 12:09 PM
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Cylinder compression check question

I have a 1975 280z, 4 speed, unk if Calif, N42 head and block (dish pistons). All stock as far as I know. I did a compression check and the readings went from low of 147 to high of 158. Motor was warm but not hot. Does this sound like it's within spec? Should I do a second check with engine cold overnight? Thanks....
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Old 11-21-2015, 09:28 PM
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What's the FSM say?
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Old 11-22-2015, 06:58 AM
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Originally Posted by NismoPick View Post
What's the FSM say?


Wish I had the service manual. They are over $80 used. Still looking for one though and did order "How to restore your Datsun Z-car" but still waiting for Amazon to ship it.
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Old 11-22-2015, 07:19 AM
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http://www.nicoclub.com/FSM/280z/197...20280z_FSM.pdf
Free

I haven't read through your other posts, I assume you are pretty new to Datsun world. A lot of the old stuff has been converted to PDF and uploaded all over the internet. If you need wiring diagrams, or body diagrams, or anything, really just google and search around a bit. Make sure it is your year specific, because there is slight electrical differences between the few years.

Last edited by Skully; 11-22-2015 at 07:22 AM.
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Old 11-22-2015, 09:05 AM
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Like your avatar.....
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Old 11-23-2015, 07:38 AM
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Closing this thread since we are apparently discussing the same thing in the other thread. Download the FSM as linked above.
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