The engine is a B18a1 obd1 i recently had the valves reground and replaced the head gasket. I was never able to get the engine to run after the machine work
the bottom end has 144000 miles on it
leakdown / comp.test (no 30wtoil) / comp.test(with oil)
#1 20% / 90 psi / 280 psi
#2 25% / 95 psi / 240 psi
#3 20% / 90 psi / 190 psi
#4 20% / 90 psi / 180 psi

Im about to pull this thing out and rebuild it.

 

i would def say bad rings that is a huge difference in compression numbers! wow! 240--->180 holy begees

rebuild

 

looks like rings to me that is a big differnce 100psi damn 240 seems really high for an ls dont it though

either way its time for some rings and p30 pisons

 

im going to do another leak down test tonight , but it doesn't look to good

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dat_dude_Ken &raquo;</TD></TR><TR><TD CLASS="quote">im going to do another leak down test tonight , but it doesn't look to good </TD></TR></TABLE>

no it dosent, 240, are you sure your guage works rite?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91whiteZCrex &raquo;</TD></TR><TR><TD CLASS="quote">

no it dosent, 240, are you sure your guage works rite?</TD></TR></TABLE> hmmm.....not sure, but i do have 2 different gages ill try it with both gauges again. you can never be too sure.

 

ya when it comes to tearing your motor apart, especilly if you did it for no reson