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- 1st Gen Protege/323/GLC (https://www.mazda3club.com/1st-gen-protege-323-glc-38/)

- - compression (PSI) (https://www.mazda3club.com/1st-gen-protege-323-glc-38/compression-psi-15714/)

Darkcide

November-5th-2002 08:47 PM

compression (PSI)

I my car just back from the dealer and my compression was good 160psi x4. I was just wondering what exactly is the nominal compression for the SOHC? How much better could my compression be if any. BTW my car only has ~65k miles and its a 91

Davard

November-6th-2002 12:38 AM

Spec is 173 psi, mimimum of 121 psi, with a max variation between cylinders of 26 psi. Sounds like you are fine.

Darkcide

November-6th-2002 01:51 PM

where did you find that info? I couldn't find it in my haynes even!

323	November-6th-2002 02:28 PM

It's in my Haynes manual. Just keep looking. I'd give the page number but I don't have it in front of me right now.

Nathan
'91 323 (soon to be 1.8L DOHC 323)

Davard

November-6th-2002 06:47 PM

Quote:

Originally posted by Darkcide
where did you find that info? I couldn't find it in my haynes even!

Mazda FSM.

323	November-7th-2002 01:39 AM

Compression...

It's section 2B-1 in the Haynes Manual.

Nathan
'91 323 (soon to be 1.8L DOHC 323)

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