dead holes
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Joined: Dec 2009
Posts: 201
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From: sc
Car: 1987 camaro lt
Engine: soon 383
Transmission: 700r4
dead holes
need some help if you can i just got my 305 back into my car after having it line bore and new rod and main bearings i DID not do new rings should have but did not on advise if it was not burning oil not to do so...
got the car to fire this after noon and could tell something was not right number (4) (6 ) (7) was not fireing did a compression check and (4) and (7) nothing (6) about 65psi put air down number (4) and it was turning the motor and got no air up into the carb so its not a valve? put oil down number 4 and it was over 100psi but slowly down to 0 only about a oil cap full thats tells me its rings? sticking to the piston? what do you think need to pull this thing apart and do rings or know of a way to get the rings to let go of the piston?
got the car to fire this after noon and could tell something was not right number (4) (6 ) (7) was not fireing did a compression check and (4) and (7) nothing (6) about 65psi put air down number (4) and it was turning the motor and got no air up into the carb so its not a valve? put oil down number 4 and it was over 100psi but slowly down to 0 only about a oil cap full thats tells me its rings? sticking to the piston? what do you think need to pull this thing apart and do rings or know of a way to get the rings to let go of the piston?
Member
Joined: Nov 2009
Posts: 376
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From: tri-cities Wa
Car: 83 camaro l69
Engine: turbo lsx
Transmission: th350
Axle/Gears: disk rear, 10bolt.
Re: dead holes
well first off get new rings... if not try a mix of wd40/ marvel mystery oil basically anything that is a oil/cleaner.
Thread Starter
Member
Joined: Dec 2009
Posts: 201
Likes: 1
From: sc
Car: 1987 camaro lt
Engine: soon 383
Transmission: 700r4
Re: dead holes
if i have to put new rings in so be it but if there is a way to not have to im down with that.. i have been told put a small amount of marvel in the hole fire it up and pore some into the carb with the rps up?
Thread Starter
Member
Joined: Dec 2009
Posts: 201
Likes: 1
From: sc
Car: 1987 camaro lt
Engine: soon 383
Transmission: 700r4
Re: dead holes
would also like to add i built this thing and it has been siting around the shop for a few months till i just put it in the car
Member
Joined: Nov 2009
Posts: 376
Likes: 0
From: tri-cities Wa
Car: 83 camaro l69
Engine: turbo lsx
Transmission: th350
Axle/Gears: disk rear, 10bolt.
Re: dead holes
ur best bet is just to get some rings and re do it.. there is really no way to restore compression once its lost. and if u do get good numbers how long will it last? u can try and do the oils and all that but i would not expect to see any improvement. mix up some atf/wd40/ marvel mystery oil and dump some down all the clynders and turn it over with the plugs out. those are the best cleaners/oils see if that does anything. and put restore in the oil run it
Last edited by toolegit86; Aug 8, 2010 at 01:33 PM.
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Joined: Dec 2006
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From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: dead holes
I never rebuild a engine with the old rings unless the engine is brand new and the rings have near 0 miles on them.
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Thread Starter
Member
Joined: Dec 2009
Posts: 201
Likes: 1
From: sc
Car: 1987 camaro lt
Engine: soon 383
Transmission: 700r4
Re: dead holes
well just got back from working on it and i have to tear it back down new rings and NOW head work number 7 got no compression even with oil in the hole put air to it and its coming out the carb and exhaust so looks like a bent valve
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