Hey guys I did a compression check on my CRX w/ Mini-me and had some strange results:

Cylinder 1 - 130
Cylinder 2 - 0
Cylinder 3 - 130
Cylinder 4 - 120

We had a bent exhaust valve on the 2nd cylinder and it was replaced and those are the results after it wouldn't start.
Now I heard there is no way you can have 0 but I went to that cylinder and when I saw that, I went on to the remaining cylinders and then back again and still "0". I unhooked the distributor and removed each spark plug as I went and replaced after checking the cylinder. My question is, is it possible to have 0? What's the deal???

 

hmmmmm, not sure, but you sure you had everything hooked up right?

 

sure it is possible if it is building not presure in the cyl in question ... cant explain why sounds to me like you did something wrong...

 

check the valve lash to see if its off

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itralex &raquo;</TD></TR><TR><TD CLASS="quote">check the valve lash to see if its off</TD></TR></TABLE>

yup if they replaced a valve the lash has to be adjusted..the valves are more than likely being held open on the compression stroke..leaving you with 0 and it is possible to have 0 as you have experienced...

 

bent valves can make you have a "0" psi compression...my brother had bent valves in his h22a head and the compression was 0.