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ZUKIWORLD Discussion Forum => Technical Discussion - Beginner / Repair => Topic started by: partie4evr on February 04, 2010, 01:10:50 PM

Title: Compression what should it be
Post by: partie4evr on February 04, 2010, 01:10:50 PM
ok so im looking into buying a samurai and i was tring to find out what the compression should be at lbs i have a tester i just dont want to buy a engine that needs a rebuild thanks for your time and have a great day . oh and if you know any years to avoid or stuff like that would be great thanks and have a good day one more thing it has the stock 1.3 in it
Title: Re: Compression what should it be
Post by: sammypro.com on February 04, 2010, 04:43:14 PM
150+ across all 4 would be good. Make sure they are all the same or close to the same #
Title: Re: Compression what should it be
Post by: samwisper on February 04, 2010, 10:08:22 PM
Just make sure the cyls are no more than a 10psi difference listen for any rattles or odd nosies .Look for any kind of smoke oil leaks .That way you can make an offer on it trying to lower the price a little.Good luck!
Title: Re: Compression what should it be
Post by: fordem on February 05, 2010, 01:21:11 PM
I believe 150 psi would be considered the minimum acceptable - however - I know from experience that the G13B will run surprisingly well with much lower numbers, in fact less than 100 psi
Title: Re: Compression what should it be
Post by: Bobthebiker on February 05, 2010, 02:46:58 PM
while most engines may run on around 100 pounds,  that would be a suggestion that you have a tired motor.  ideally 150-190ish is where I'd say you need to be.
Title: Re: Compression what should it be
Post by: fordem on February 05, 2010, 05:10:02 PM
while most engines may run on around 100 pounds,  that would be a suggestion that you have a tired motor.  ideally 150-190ish is where I'd say you need to be.

Oh definitely, and closer to 190 also - mine is down around 90 right now, and I've started accumulating the pieces I need to pull it and do the rebuild - gasket sets, seals, etc., area already here.