Ok compression check results, anyone got an idea
Ok tryin to figure out why i am using too much oil, and got black smoke at the first going wot(fuel)
Compression # 210, #2 220, #3 220, # 225 Psi.
Are these numbers good for a 96 with 70 miles?
Compression # 210, #2 220, #3 220, # 225 Psi.
Are these numbers good for a 96 with 70 miles?
Joined: Jan 2002
Posts: 30,027
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From: Nowhere and Everywhere
Well hopefully your 6 year old car has 70K miles
Yes those numbers are very good, very strong, consistent. If you're burning oil I would suspect leaky valve seals or valve guides. This will let oil from the head seep down into the combustion chambers, but won't affect compression numbers when the valves are closed. Do you get a puff of smoke when you first start your car in the morning? My old Camry used to do this (2nd gen 87-91 Camry), and those cars were notorious for their valve guide seals going bad. It shouldn't be a serious problem, but having to add oil starts to get annoying.
Yes those numbers are very good, very strong, consistent. If you're burning oil I would suspect leaky valve seals or valve guides. This will let oil from the head seep down into the combustion chambers, but won't affect compression numbers when the valves are closed. Do you get a puff of smoke when you first start your car in the morning? My old Camry used to do this (2nd gen 87-91 Camry), and those cars were notorious for their valve guide seals going bad. It shouldn't be a serious problem, but having to add oil starts to get annoying.
Those are good numbers... looks like your rings might be worn on cylinder #1, but that's not bad. Take your car to a dealership or a shop and have a leakdown test done... see if your loosing it throught the valves...
do this .. do the test again with car warm.. drop a oil cap full of oil in the spark plug hole and do the test again.. see what the results are..
they should climb up some.. if any of them jumps up alot from what they were, then rings are going.... post the numbers you get again.. in this thread....
do this .. do the test again with car warm.. drop a oil cap full of oil in the spark plug hole and do the test again.. see what the results are..
they should climb up some.. if any of them jumps up alot from what they were, then rings are going.... post the numbers you get again.. in this thread....
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