does anyone know the compression specs for the 3 gen ls teg? or the parameters that it needs to be in? my car burns oil and there is some oil coming from between the head and the block so i have no idea if its a head gasket or just weak pistons...

 

I think 180 across the board is good.

 

it doesn't matter as much about the number as it does how far they are apart. if it is below 140 on all cylinders then i would be worried

edit: the number should not deviate 10-15% between the cylinders

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nate_2k5 &raquo;</TD></TR><TR><TD CLASS="quote">it doesn't matter as much about the number as it does how far they are apart. if it is below 140 on all cylinders then i would be worried

edit: the number should not deviate 10-15% between the cylinders</TD></TR></TABLE>

well i mean it just burns oil. i know its not valve seals...some people tell me its head gasket cuz you can see oil on the block. i just think the motor is tired...is there a way i can determine this?

 

compression and leakdown test and clean off the block and watch where it leaks first

 

max-200psi
minimum 135psi
max variation-28psi between cylinders

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AWD Terror &raquo;</TD></TR><TR><TD CLASS="quote">max-200psi
minimum 135psi
max variation-28psi between cylinders </TD></TR></TABLE>

Those specs are for the LS right?

 

that is what im wondering...it is an ls engine...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Options &raquo;</TD></TR><TR><TD CLASS="quote">

Those specs are for the LS right?</TD></TR></TABLE>

Yes.

I'm not 100% on this, but I think the GS-R is like:

max-220psi
minimum 145psi
max variation-28psi between cylinders

It's not perfect, but it's close

 

ok thank you