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| 225 Slant 6 Engine Help in Central Texas?(75110) https://www.slantsix.org/forum/viewtopic.php?t=46905 |
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| Author: | Danarchy [ Sun Nov 20, 2011 12:39 pm ] |
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oh yeah, the bolts were all tight. |
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| Author: | Danarchy [ Sun Nov 20, 2011 2:32 pm ] |
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Help still needed! I attached a short video with sound, and you can hear the knocking. Still sounds like the 5th or 6th cylinder/journal area???-Thanks Dan http://imageshack.us/clip/my-videos/507/l44.mp4/ |
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| Author: | wjajr [ Sun Nov 20, 2011 4:47 pm ] |
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This noise is hard to get a fix on due to my tin can laptop speakers masking any fidelity. Is it a clank-clank, or a thunk-thunk sound? Can you feel this rapping when a hand is placed in the oil pan at the rear of the engine while running? |
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| Author: | Danarchy [ Sun Nov 20, 2011 5:45 pm ] |
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Quote: Can you feel this rapping when a hand is placed in the oil pan at the rear of the engine while running?  Well I haven't put my hand in the oil pan yet, but I will definitely put my hand on it tomorrow!Down behind the starter is where I have put my hand and it seems like where the sound is coming from. I got a mechanical oil pressure gauge today, and I should be able to hook it up tomorrow also. a thunk-thunk sound |
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| Author: | Danarchy [ Mon Nov 21, 2011 4:32 pm ] |
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Pouring Down Rain(Not Complaining),so the car work gets put off until tomorrow. |
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| Author: | slantvaliant [ Tue Nov 22, 2011 1:57 pm ] |
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Where are you? Central Texas covers a lot of territory. When tracking noises, I sometimes use a mechanic's stethescope. Oh, and watch the fan and belts when you're working around a running engine. You'd be amazed at what they can do when you're not expecting anything. 
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| Author: | Danarchy [ Tue Nov 22, 2011 3:43 pm ] |
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1 hour south of Dallas. I have a stethoscope, but I just moved and can't find a damn thing! Frustrating on top of having car problem. 
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| Author: | Reed [ Tue Nov 22, 2011 4:05 pm ] |
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Do you have a broomstick or a piece of rubber hose? |
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| Author: | Danarchy [ Tue Nov 22, 2011 4:27 pm ] |
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yeah I put a piece of hose on it, and it still sounds like #5 or 6 towards the transmission. It seems to come and go more now knock knock knock------------knock knock knock knock knock knock------------knock knock knock??? If it's not a crank bearing I will be surprised. Raining and cold and no garage to work in. |
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| Author: | Reed [ Tue Nov 22, 2011 4:48 pm ] |
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Bummer. |
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| Author: | Danarchy [ Wed Nov 23, 2011 1:40 pm ] |
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I guess I'm really screwed, as  hasn't told me what's wrong, or I'm totally looking in the wrong area. Have a Happy Thanksgiving All! |
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| Author: | Danarchy [ Wed Nov 23, 2011 4:03 pm ] |
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Quote: start your motor and write down the oil pressure in PSI under four conditions: (1) cold at 2000 RPM, (2) cold at idle, (3) hot at 2000 RPM, (4) hot at idle.
1.) Cold at 2000rpm 39 psi (terrible noises!)2.) Cold at idle 35 psi (mild noise) 3.) Hot at 2000rpm 39 psi (terrible noises!) 4.) Hot at idle 34psi(mild noise) oil pressure light always seemed to work correctly, but I am not sure about the gauge? I just swapped the light for the gauge(mechanical) |
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| Author: | Reed [ Wed Nov 23, 2011 4:55 pm ] |
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Hmmm. Those are acceptable numbers, but I would expect a bit more of a PSI difference between the hot and cold readings. Might be you have spun a bearing which is blocking an oil feed hole. I think you are doomed to pull the motor on this one. 
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| Author: | RustyRamcharger [ Wed Nov 23, 2011 8:51 pm ] |
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Quote: 1 hour south of Dallas. I have a stethoscope, but I just moved and can't find a damn thing! Frustrating on top of having car problem.
There are a few MMLers in the Dallas area. www.moparmailinglist.comWith the engine idling, pull one plug wire at a time. You'll hear a pronounced difference in the sound when you locate the cylinder with the bad bearing. Don't run the engine for too long, or drive the car. The crankshaft might still be regrindable. It won't be if you allow the rod to hammer the journal. Ken 
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| Author: | Danarchy [ Fri Nov 25, 2011 9:26 am ] |
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I have resigned my self to pulling the engine. Not sure if I will rebuild it completely or not yet. -Who sells a Good rebuild kit for a daily driver? -Would I be better off piecing my own kit together? -Anything I should watch out for? (shoddy parts Manufactures?) Thanks Dan There should be a Sticky about engine rebuilds |
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