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Tractor Pulling Discussion Forum

? for Moline builders

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family traditio

02-26-2006 19:20:09




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what would cause the front rocker assembly on my U to not get oil to it and the rear rocker assembly to get plenty of oil? Please help!




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B BARENIE

02-27-2006 21:06:06




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 Re: ? for Moline builders in reply to family tradition, 02-26-2006 19:20:09  
FRONT TUBE COMES DIRECTLY OF THE CAM JOURNAL, YOU CAN SEE RITE THRU IT TO THE CAM SHAFT. REAR RUNS EXACTLY THE SAME WAY !
JUST TURNED AIR COMPRESSOR OFF ! THRU THE TUBE ON TOP AIR COMES OUT IN THE CAM JOURNAL !

TUBE HAS TO BE PLUGGED OR THEIRS VERY LITTLE OIL PRESSURE TO REAR MAIN ! IS THE REAR TUBE TIGHT OR COULD IT BE CRACKED !

10A1701 CRANKCASE ! IS WHAT I'M LOOKING AT !



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Dave Neubert

02-27-2006 15:26:28




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 Re: ? for Moline builders in reply to family tradition, 02-26-2006 19:20:09  
I think it oils thru the cam bearing see if the hole is lined up or too much clearance also I think some cams have a groove in them for oil



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JK2

02-27-2006 06:43:19




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 Re: ? for Moline builders in reply to family tradition, 02-26-2006 19:20:09  
The passage in the rockers sometimes get plugged with sludge. Have you tried a different rocker?
The only other thing I can think of is that the rocker shaft has a bunch of sludge inside it that is blocking the hole for that rocker.
John



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family tradition

02-27-2006 10:37:02




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 Re: ? for Moline builders in reply to JK2, 02-27-2006 06:43:19  
I am not getting oil up through the tube that runs from the crankcase up through the blocks and heads. At low idle it will spit a little bit of oil but when you raise up the rpm's it stops spitting any oil. The rear rocker assembly tube will constantly blow oil about 8 -10 inches out of the tube. I am at a loss on what to look for. Is it possible that the oil pump is going bad? I have good oil pressure on the gauge.

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MM 11111

02-28-2006 11:06:52




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 Re: ? for Moline builders in reply to family tradition, 02-27-2006 10:37:02  
Make sure the plug is in where the oil is drilled up from the main. If the engine was hot tanked most shops pull them out and then hand them to you to reinstall yourself or sometimes they dont even give them back.



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Bencie

02-27-2006 14:50:45




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 Re: ? for Moline builders in reply to family tradition, 02-27-2006 10:37:02  
Blow air back down through the oil tube and try it again. It has to be blocked somehow.



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