I Think I might have it!
...Just giving you a hard time buddy...
...I know its been really frustating for you..
Pickin on the wrong admin...
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Registered User
Joined: Oct 2006
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From: Okotoks AB
I would try to get my hands on one before pulling the head. and do some diag before disturbing the seal. compression test each hole. then back off all the valves. or even pull all the rockers. and pressure up each hole do a leak down. then toss some oil in the hole on the rings and walls. re do the leakdown. to find bad valves or cracked head or headgasket even.
do that before pulling the head.
do that before pulling the head.
Registered User
Joined: Aug 2005
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From: Airdrie, Alberta
I would try to get my hands on one before pulling the head. and do some diag before disturbing the seal. compression test each hole. then back off all the valves. or even pull all the rockers. and pressure up each hole do a leak down. then toss some oil in the hole on the rings and walls. re do the leakdown. to find bad valves or cracked head or headgasket even.
do that before pulling the head.
do that before pulling the head.
If you get in there and find nothing out of the ordinary, you've pulled the head for nothing and still no further ahead.
Thread Starter
Registered User
Joined: Aug 2006
Posts: 5,426
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From: Fort McMurray, Alberta
I found a buddy that has a compression tester and a leakdown tester. Just have to make them work together. Be about a week or so before we can do it though.. I have pretty much ruled everything else out though... I sure am getting frustrated I can tell you that
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Joined: Oct 2006
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From: Okotoks AB
compression test and leakdown use the same injector adapter. just the air is going in opposite directions.
laekdown puts shop compressed air into the cylinder. and you listen for where it comes out. IE - blowby into crankcase listen to breather. pull intake horn listen for air. pull rad cap try and make that highest point - at radiator. check for bubbles in coolant reservoir. then oil the cylinder walls turn the engine over by hand to get even coat. that ensures a positive ring seal... if the rings are good. then that isolates air on the topend. make sure you have a shutoff valve for the air. it should hold pressure with the rings oiled. if not you have a majjor problem.
and the compression tester should have a 1 way check in the guage. or its impossible to read. and shooting for 350psi or better. and even pressures across them all. for a healthy card. compression test is easier. should do that 1st, then you have a preliminary on what you got, then you can focus attention in the leakdowns.
laekdown puts shop compressed air into the cylinder. and you listen for where it comes out. IE - blowby into crankcase listen to breather. pull intake horn listen for air. pull rad cap try and make that highest point - at radiator. check for bubbles in coolant reservoir. then oil the cylinder walls turn the engine over by hand to get even coat. that ensures a positive ring seal... if the rings are good. then that isolates air on the topend. make sure you have a shutoff valve for the air. it should hold pressure with the rings oiled. if not you have a majjor problem.
and the compression tester should have a 1 way check in the guage. or its impossible to read. and shooting for 350psi or better. and even pressures across them all. for a healthy card. compression test is easier. should do that 1st, then you have a preliminary on what you got, then you can focus attention in the leakdowns.
