Quote:
| Originally Posted by John W Hi all,
1) what is the compression (in psi or bar) expected to be ?
2) what is the minimum it is allowed to be ?
3) if one cylinder is down a bit with respect to the other, how different can they be (i.e. 1 bar different) before it is considered an issue ?
I know the compression ratio is stated as 11.5 to 1, but wondering what a compression check reading should give, and what would be considered acceptable / problematic.
As an example, if one were showing 165 psi is that good or bad ?
Presumably this sort of info is given is a service manual somewhere, but I've not managed to find it written down anywhere.
Cheers,
John. |
Don't know the values associated with your engine, but when taking readings, all spark plugs out and hold throttle wide open whilst cranking.
If you are seeing 165psi that would be an acceptable reading and I don't like to see a difference of more than 5psi.
Hope that helps.