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Discussion Starter · #1 ·
my rpm at idle are at 750rpm
oil presure is 5, at 750 rpm then it goes up. 20,30,40 50 ..90.......ect..
?what are the rights rpm at idle & timing degrees for my 280zx'80.

ps ? how i make the rpms at idle & timing right
what i do. thank you.

280ZX80 6-2753cc 2.8L SOHC (L28E) FI. 5speed.'"non-turbo'"
 

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RE: rpms at idle are at 750?what the rights# &

According to Chilton's Idle should be 700 and timing should be 10B. I'd suspect a bad oil pressure sending unit, 5 psi too low and 90 too high,test the guage by pulling the lead off the sending unit and with the key ON ground the lead to the block, guage should climb to the top smoothly. I'd replace the sending unit, pressures shouldn't be that extreme.
 

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<b>RE: rpms at idle are at 750?what the rights# &a

if it has the origional hood
look in middle to right side
and it will give all the info.
you need.

idle speed
timing in degrees
 
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