This is my first time posting in the Integra forum and I have a quick question for you guys and gals. Im buying a LS short block off a guy and the only thing he could tell me "The only information I can really give you is the compression test 75/160 on all cylinders and under 10% on the leakage test." How is that for a motor from 95 with 75K miles?

 

I've seen good numbers off of B18C's that are in the 180 range.

75 seems a bit low for that motor.

 

i dont get it...what were the numbers on each cylinder of the compression test? i dont know what 75/160 means.

 

When you do a compression check on an engine, those numbers represent how many pounds per square inch each cylinder is holding.

If the numbers are low, there is a leak somewhere. Could be the piston rings, or it could lie in the head. Warped deck, a problem with the valves. There are various way to detect where the leak is coming from as well.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ScreaminTeg &raquo;</TD></TR><TR><TD CLASS="quote">When you do a compression check on an engine, those numbers represent how many pounds per square inch each cylinder is holding.</TD></TR></TABLE>

if that was towards me, i know what a compression test is...i dont know why his test results are 75/160 instead of giving a reading for each cylinder(ie. 180 175 180 185)...thats what i was trying to say.

 

my bad 95integrals....it sounded like you didn't know what one was. lol sorry...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ScreaminTeg &raquo;</TD></TR><TR><TD CLASS="quote">my bad 95integrals....it sounded like you didn't know what one was. lol sorry...</TD></TR></TABLE>

its cool...i know post count means EVERYTHING when it comes to forums.

 

hmmm thanks alot guys...i do plan on gettin the pistons replaced IF i get the block...hopefully thats the problem... thanks again

 

What do compression numbers mean on a SHORTblock anyway?? If 1 or 2 cylinders are low, it might be the headgasket or the valves. NETHER of which are part of the shortblock...