Did a compresion test today
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From: SaCrAmEnTo, CaLiFoRnIa, U.S.A
i did a compresion test today and here are the results starting from closest to the distributer and going on to the camgears.
215, 210, 210, 210
all had around 6-8 cranks in them
what you guys think?
is this good or bad?
215, 210, 210, 210
all had around 6-8 cranks in them
what you guys think?
is this good or bad?
Thread Starter
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Joined: Feb 2002
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From: SaCrAmEnTo, CaLiFoRnIa, U.S.A
probly less than 13k
see my motor blew up because of technical difficulties and i had my motor warrentied my chassie has 34k
if i only had a pic to remember it see a stem broke off and the piston smashed it into the head and it jumped from one piston to another and f-uped everything head, block, almost all the pistons, some broke off it was terrible, if only i had a pic
see my motor blew up because of technical difficulties and i had my motor warrentied my chassie has 34k
if i only had a pic to remember it see a stem broke off and the piston smashed it into the head and it jumped from one piston to another and f-uped everything head, block, almost all the pistons, some broke off it was terrible, if only i had a pic
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From: SaCrAmEnTo, CaLiFoRnIa, U.S.A
also i wanted to add that i didnt crank it till the needle stops, is there any harm if i crank it till the needle stops?
of course it's good.
There are like 3 threads per day about compression numbers...should be apparant by now as to what is good and what isn't
There are like 3 threads per day about compression numbers...should be apparant by now as to what is good and what isn't
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You want to keep cranking it until the needle stops although the first 4-5 cranks will get you to about 95% of your total compression. Your numbers look fine as motors I have checked before were in the 205-210 range.
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From: SaCrAmEnTo, CaLiFoRnIa, U.S.A
i aslo wanted to add that my oil wasnt all the way at the second dont it was like almost between the two dots. would this make a difference if i changed my oil and have enough oil?
straight from the helms.
Nominal 1,860 kPa (19.0 cgf/cm ^2) (270 psi)
Minimum 930 kPa (9.5 cgf/cm^2) (135 psi)
Maximum variation 200 kPa (2.0 cgf/cm^2) (28 psi)
You are within range (210-215) and your variation isn't over 28. So your fine.
Nominal 1,860 kPa (19.0 cgf/cm ^2) (270 psi)
Minimum 930 kPa (9.5 cgf/cm^2) (135 psi)
Maximum variation 200 kPa (2.0 cgf/cm^2) (28 psi)
You are within range (210-215) and your variation isn't over 28. So your fine.
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