compression 2.0l 16v

[leeroy20vt]

as above what should the compression be in psi

thanks
lee

[leeroy20vt]

any one i have searched 

[monzablue16v]

Not sure what the actual value is but generally if all 4 cylinders have a similar amount of pressure and hold it. I think that is how you are meant to test it??

[gtigolfthree]

90-100 springs to mind but dont know where from though.

[danny_p]

90-100 means it may just about run but it's really quite f**ked.

i would want to 180+ across the board a healthy abf crancking at a decent speed should be around 200 psi mark

[leeroy20vt]

cheers guys dunno if it matters its a 9a engine not a abf

[danny_p]

9A is a tad lower tho dosent really make any differance TBH  compression gadges ain't exactly accurate animals  i have a few and they all read a bit diffrent.  but some rough values

< 100  =  BROKEN proably terminal
100 - 125 =  scrap/ it needed a rebuild some time ago 
125 - 150 =  would like a rebuild
150 - 165 =  bit worn but it'll
165 - 180 = ok bit low  but choudl be gadge readin low or starter spinning slowly
180 - 200 =  it's gonna go some
200 +   = race engine is it

[leeroy20vt]

so when u say below 100 terminal what are we looking at u reckon

[danny_p]

if your lucky it'll be valves ether bent  or the guides and seats so worn there not landing on the seats square.   more than lilely the pistons are damaged ( rings exposed or very worn it need a rebore and new pistons  prob straight to 2nd os

[leeroy20vt]

if your lucky it'll be valves ether bent  or the guides and seats so worn there not landing on the seats square.   more than lilely the pistons are damaged ( rings exposed or very worn it need a rebore and new pistons  prob straight to 2nd os

cheers danny hopefully will find out tues as im taking engine back out and stripping it