Was board
1 - 160psi
2 - 160psi
3 - 164psi
5 - 163 psi
Is this normal for skimed head
Did test by taking sprak plugs out individually is this ok ?
cranked with full open throttle untill reached its peak .
cheers dave
Was board
1 - 160psi
2 - 160psi
3 - 164psi
5 - 163 psi
Is this normal for skimed head
Did test by taking sprak plugs out individually is this ok ?
cranked with full open throttle untill reached its peak .
cheers dave
There all about the same so no prob's with it loss of compression but abit higher then normal, how much was skimmed off the head? Do you know the head thickness now?
wrote it down somwhere it was defo mid 73mm i had it accuateley measured as well 73.56 rings a bell, that was after the skim tho.
yeah just got Receipt out 73.56mm after it was skimmed
cheers for input mark
Theres no problems as of yet , its been runing 10-20k miles no probs, i played with my carb and had it road tuned a while back all was well.
just digging b4 i decide what the best course of action is with future of car engine
Last edited by dave j gtt; 14-10-2009 at 23:18.
am feeling this is maybe to high any one
It's fine.
mine was 175psi, don't worry about it.
hi i had mine done on the 07/10/09
1 was 6%
2 was 13%
3 was 10%
4 was 8%
the guy said to be worried over ten but even the rolling rod place said dont worry about anything 20 and under then i got my car rolling roaded the same day
there.
an old engine you will always get a bit of leakage .
he done it in % thats all i no but my engine is strong and made good bhp
when doin the compression test on the gt turbo is it right to take king lead off then leave plugs in the other 3 cylinders and use tester on them indicidually. on cylinder 4 nearest to flywheel the plug is black like its fouling and the rest clean does this seem suspicious? the engine was rebuilt only a few months ago with new rings just want to check my compression see if there ok.y wud only one cylinder foul?