Ron:
bear (or is it bare) with me, but i have to ask
why do you need a compression tester?
do you suspect low compression?
do you have a baseline pressure to start with? altitude compensated?
the reason i ask, is for over 30 years i have worked with all sorts of diesel engines, and every shop i worked for either never had a compression tester, or it
was never used. the readings are next to worthless, because of all sorts of variances that affect what the reading might be.
now i have to also say we did not work on single cylinder engines so having a tester might be of use, but in multicylinder engines the problem hole was pretty easy do find and diagnose the problem.
i don't know about a mini petter, but is there a pressure that is common to these little guys to compare to ?
in any event you will need a tester that will check in excess of 500psi, even if the petter does not go that high.
check with a tool truck such as mac, matco, snapon, cornwall etc. they have em, but they are expensive.
one used for cars will not work, even if you can adapt it to fit it will be damaged by the high compression of a diesel
one might be useful to test a new properly running engine, and then to use as a followup test to check the condition of the engine over time.
but without a baseline of what it should be, i don't know how i would tell much from the readings. some diesels run well at around 300psi others at over 500psi
and i would have know idea where the petter fits in.
but you are asking for a tester so i guess you know what the compression pressure is supposed to be, if so can you let me know. for my own curiosity.
bob g
