well guys i did the compression test yesterday,b18b1 and i got this ####

195
180
180
170

my headgasket is bad and i will change it next week.my oil its milky, and white smoke from the exhaust. i also will change my head for a rebuild b18b1 head port and polish ferrea springs and retaines and 3 angle valve job.
what u guys think about this numbers will they change after i replace the headgasket?????i m going turbo soon

 

in the FAQ
is the following post it will help you educate yourself a little more about turbos.

http://beesandgoats.com/boostfaq/g2icturbo.html

would be nice if you help yourself with the FAQ post in order to know more about the b series

 

thanks man but the question is about the compression test too?what about those numbers

 

The numbers are ok. They're within spec as far as the difference between lowest and highest readings between cylinders go.

It's hard to tell how a new head and new gasket will affect the numbers unless you do a leakdown test. If you are losing compression from your gasket/valves/crack in head then your replacements will help. If you are losing compression through your rings, it's not gonna do much.

 

those numbers arent bad.

 

I would not have suspected a blown head gasket from those numbers. I'm guessing it's not breached immediately around any of the cylinders. Perhaps the HG breached just between an oil passage and the water jacket?

 

yeah i checked mine today for the hell of it (91 b18a) and the #'s were 175-170-170-180 and my car runs like a champ

 

nice numbers man. this week i will change my HG and head lets see how it goes. i let u guys know

 

thanks and GL with the head swap. just remember to torque everything to spec and in the correct sequence and double check that you get that timing belt on right.

also, if that rebuilt head is milled, expect your compression readings to go up a bit just cuz of that.

 

thanks man. will do the compression test after i finish