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Discussion Topic:
oil galley/stuck lifters
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supereal |
08-21-2018 @ 1:15 PM
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Senior
Posts: 6819
Joined: Oct 2009
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Don't use a torch or pound too much, or more damage is likely. The only certain way to clean the oil galleries is to pull and disassemble the engine and soak it in a hot tank, followed by thoroughly rinsing it with high pressure water. Old sludge is almost impossible to remove by any other method. At our shop we hot tank blocks in a strong Zep solution.
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MICHV8 |
08-14-2018 @ 4:29 AM
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Member
Posts: 452
Joined: Jul 2010
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could I try heating the lifters with propane (much like rusty bolts) to free them up or would that cause problems?
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cliftford |
08-13-2018 @ 6:08 PM
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Senior
Posts: 845
Joined: Jan 2014
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It sounds like it needs a rebuild.
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carcrazy |
08-13-2018 @ 1:54 PM
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Senior
Posts: 1674
Joined: Oct 2009
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Cylinders 1,2 & 3 have valves which are stuck open so they have no compression. To repair this situation, you will have to remove the right side (passenger's side) cylinder head to free up the stuck valves and replace any parts as required.
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MICHV8 |
08-13-2018 @ 5:18 AM
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Member
Posts: 452
Joined: Jul 2010
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If I stop the engine when the lifter SHOULD be in the recessed position and then can't loosen it, that would seem to indicate stuck lifters rather than worn cam lobes, right? Last compression test many months ago was: 1,0; 2,0; 3,0; 4,50; 5,70; 6,55; 7,70; 8,62 Obviously a tired engine, but a good learning experience for me. Additional galley question...what is the critical sludge area for oil flow?
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alanwoodieman |
08-12-2018 @ 11:40 AM
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Senior
Posts: 868
Joined: Oct 2009
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worst case is the cam lobes are worn completely off, have seen a few with bad cam lobes. take a wooden dowel and gently knock them down to see if they go down. If they do not go down at all then I would suspect a bad cam. as for it running good--did it back fire thru the exhaust or the intake? stuck valves would cause this. did you take a compression test of the cylinders? take all of the spark plugs out , hold throttle open and see what you get.
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alanwoodieman |
08-12-2018 @ 11:40 AM
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Senior
Posts: 868
Joined: Oct 2009
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worst case is the cam lobes are worn completely off, have seen a few with bad cam lobes. take a wooden dowel and gently knock them down to see if they go down. If they do not go down at all then I would suspect a bad cam. as for it running good--did it back fire thru the exhaust or the intake? stuck valves would cause this. did you take a compression test of the cylinders? take all of the spark plugs out , hold throttle open and see what you get.
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alanwoodieman |
08-12-2018 @ 11:40 AM
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Senior
Posts: 868
Joined: Oct 2009
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worst case is the cam lobes are worn completely off, have seen a few with bad cam lobes. take a wooden dowel and gently knock them down to see if they go down. If they do not go down at all then I would suspect a bad cam. as for it running good--did it back fire thru the exhaust or the intake? stuck valves would cause this. did you take a compression test of the cylinders? take all of the spark plugs out , hold throttle open and see what you get.
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alanwoodieman |
08-12-2018 @ 11:38 AM
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Senior
Posts: 868
Joined: Oct 2009
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worst case is the cam lobes are worn completely off, have seen a few with bad cam lobes. take a wooden dowel and gently knock them down to see if they go down. If they do not go down at all then I would suspect a bad cam. as for it running good--did it back fire thru the exhaust or the intake? stuck valves would cause this. did you take a compression test of the cylinders? take all of the spark plugs out , hold throttle open and see what you get.
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MICHV8 |
08-12-2018 @ 9:07 AM
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Member
Posts: 452
Joined: Jul 2010
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it is the 3 lifters that do not move (passenger side 2, 4 and 5 in from front of galley). Perhaps the valves are stuck as well, but it is the lifters that currently don't move. I'll try carcrazy steps and see what happens
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