diagnosing oil consumption issue
Thread Starter
Melting Slicks
Joined: Feb 2002
Posts: 2,285
Likes: 2
From: Crooks SD
Also, just for the record... I've only had it running for about 2 weeks. My builder and I had an agreement that since it was during his busiest time (a ton of sprint car business about this time), I would be patient. Needless to say, it was completely worth the wait.
Team Owner
Joined: Nov 2002
Posts: 138,650
Likes: 177
From: Poor pathetic little excuse for a boy
Also, just for the record... I've only had it running for about 2 weeks. My builder and I had an agreement that since it was during his busiest time (a ton of sprint car business about this time), I would be patient. Needless to say, it was completely worth the wait.
Thread Starter
Melting Slicks
Joined: Feb 2002
Posts: 2,285
Likes: 2
From: Crooks SD
Regardless, the balance must not have been dead-nuts accurate as I managed to have a vibration eliminated by having my builder re-balance the assembly. Needless to say, it was worth the wait.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Did I miss the year of the block ? is it a 99 to 2001 block ? and are those the original pistons and rings ?
Most guys when they build or have engines built, go cheap on the pistons and use cheap rings two sets of good rings. Cheap pistons and cheap rings will leak oil.
One can not build a high performance engine on the cheep and expect it to last very long.
Most guys when they build or have engines built, go cheap on the pistons and use cheap rings two sets of good rings. Cheap pistons and cheap rings will leak oil.
One can not build a high performance engine on the cheep and expect it to last very long.
Last edited by AU N EGL; Aug 6, 2009 at 07:12 AM.
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
What I've done in the past is to attach a constant air source inturn to each cylinder ( spark plug hole) and listen ( with a stethoscope if neccessary) for air leakage on the compression stroke of each cylinder. Air that is heard thru the tail pipes is exhaust valves. Thru the oil dip stick is rings. Thru the valve covers or valve stem is obviuosly valve seals. ect.
This procedure has been called many names like leak-down check, differential compression test, etc.. Using air into the cylinder and your ears is one of the best (if not the best) ways to diagnosis where the problem is with oil consumption or low compression.
Thread Starter
Melting Slicks
Joined: Feb 2002
Posts: 2,285
Likes: 2
From: Crooks SD
Did I miss the year of the block ? is it a 99 to 2001 block ? and are those the original pistons and rings ?
Most guys when they build or have engines built, go cheap on the pistons and use cheap rings two sets of good rings. Cheap pistons and cheap rings will leak oil.
One can not build a high performance engine on the cheep and expect it to last very long.
Most guys when they build or have engines built, go cheap on the pistons and use cheap rings two sets of good rings. Cheap pistons and cheap rings will leak oil.
One can not build a high performance engine on the cheep and expect it to last very long.
Safety Car
Joined: May 2008
Posts: 4,237
Likes: 11
From: Lacombe Louisiana
A lot of that depends on the engine builder.I built an old four bolt main 350 out of a school bus that had 300,000 miles on it.It was going into a rat drag car(65 chevelle).We used auto zone el cheapo, pistons, rings(all cast) and bearings.He is on his fourth season running 12.4's and turning 6200 thru the traps.He uses no oil and it doesnt smoke!
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Team Owner
Joined: Sep 2003
Posts: 43,084
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From: Raleigh / Rolesville NC
blow, compression, comsumption, consumption, deceleration, diagnosing, ls1, ls2, oil, oils, pcv, revision, ring, test, valve
