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Rod Knock on startup |
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pnypwr
AMC Addicted Joined: Oct/11/2009 Location: ct Status: Offline Points: 688 |
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we had a grand cherokee with a 318 that rattled pretty good upon start up, had an oil pan leak so when I dropped thepan I ponied up the dough for a new pump...and voila knock went away that was 5 yrs ago and its still going strong...had 180k onit when I changed the pump. I know its a different design just my 2c
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70 amx 360 survivor
74 gremlin 390 69 amx 390 project 68 sport satellite vert 440 03 mach 1 4.6 4v with a snail 65 mustang notch 347 |
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74Bubblefender
AMC Addicted Charter Member Joined: Jun/29/2007 Location: The AMC form Status: Offline Points: 2589 |
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Run thicker oil and see what is does
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We are just about to forge new AMC V8 crankshafts.. please check here
http://www.bulltear.com/forums/showthread.php?19564 |
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poormansMACHINE
AMC Addicted Charter Member Joined: Jun/28/2007 Location: Shoemaker-Levy9 Status: Offline Points: 12302 |
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I swapped that out several years ago just to simplify filters on the shelf when the fleet was bigger. 91 and newer Jeep 4.0 adapter screws right in. |
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timoboy
AMC Nut Joined: Oct/27/2008 Location: San Diego, CA Status: Offline Points: 394 |
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Alright, thanks for all the tips guys really helpful. Here is what I did.
10w40 Castrol high mileage (instead of 10W30 Valvoline) resealed front cover, oil pump, etc and old one not in the best shape so swapped in a 1991 Wagoneer front cover with the different Chrysler style oil filter adapter from low mile car. Didn't change the gears as they were within spec when I measured as per my TSM Bosch $7 filter (the smaller 1991 bypass one) Knock is G.O.N.E. Next step is to put an oil gauge and sending unit on and check the actual pressure. Now that the knock is gone, I have begun to question the pressure might be too high as seems to be much online about too much pressure at idle, etc being an issue for these AMC engines and how very carefully the oil pump must be setup. |
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69modjav
AMC Apprentice Joined: Apr/18/2009 Location: wisconsin Status: Offline Points: 29 |
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I had this problem on my 360 and i knew it wasn't worn out. I got rid of the wix filter that i was running and put on a fram. No more lifter tick or knock at start up.
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69 BBO Mod Javelin 390 4 speed
77 Jeep J10 360 4 speed lifted |
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