The Ford Barn

dono50 · 02-16-2021, 07:31 PM

On a 48-52 8RT truck oil pan with the large clean out can I access the oil pump pick up tube without dropping the pan ?
Traced my knocking noise to the oil pan and suspect an interference problem.
Pulled plug wires one cylinder one at time no difference in noise. Oil pressure is fine. All rod/main clearances were good when assembled. Any suggestions ?

19Fordy · 02-16-2021, 07:45 PM

OOps, I just read you used the stethescope technique. Glade you found it. Will using a metal rod touching the oil pan and holding it to your ear work?

Please let us know "the rest of the story". Good luck.

dono50 · 02-16-2021, 07:52 PM

Quote:

Originally Posted by 19Fordy

OOps, I just read you used the stethescope technique. Glade you found it. Will using a metal rod touching the oil pan and holding it to your ear work?

Please let us know "the rest of the story". Good luck.

Stethoscope, should have checked that sooner. Bought it at Harbor freight, cheap, and works well.

dono50 · 02-16-2021, 07:58 PM

Mechanic stethoscope at harbor freight 4.99 ,works better than screw driver

flatjack9 · 02-16-2021, 09:02 PM

You can not access the tube through the cleanout, only the screen. You could try draining the oil, remove the cleanout and have someone crank the engine while you feel the screen. If the crank is hitting the tube, you should be able to feel it.

dono50 · 02-16-2021, 09:33 PM

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Quote:

Originally Posted by flatjack9

You can not access the tube through the cleanout, only the screen. You could try draining the oil, remove the cleanout and have someone crank the engine while you feel the screen. If the crank is hitting the tube, you should be able to feel it.

Thanks, might be able to bend if hitting without removing pan

Tim Ayers · 02-16-2021, 11:46 PM

Quote:

Originally Posted by dono50

Thanks, might be able to bend if hitting without removing pan

Should be able to bend it for sure. It's all right there within reach once that clean out plate is removed.

GB SISSON · 02-17-2021, 02:10 PM

Be careful bending that tube... I have had some problems with those two attachment bolts stripping over the years while installing tube to pump.

02-16-2021, 07:31 PM	#1
dono50 Senior Member Join Date: May 2010 Location: Bradenton,Fl/ Cheshire,Ct Posts: 710	8RT truck oil pan question On a 48-52 8RT truck oil pan with the large clean out can I access the oil pump pick up tube without dropping the pan ? Traced my knocking noise to the oil pan and suspect an interference problem. Pulled plug wires one cylinder one at time no difference in noise. Oil pressure is fine. All rod/main clearances were good when assembled. Any suggestions ?

02-16-2021, 07:45 PM	#2
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 10,919	Re: 8RT truck oil pan question OOps, I just read you used the stethescope technique. Glade you found it. Will using a metal rod touching the oil pan and holding it to your ear work? Please let us know "the rest of the story". Good luck. Last edited by 19Fordy; 02-16-2021 at 07:50 PM.

02-16-2021, 07:58 PM	#4
dono50 Senior Member Join Date: May 2010 Location: Bradenton,Fl/ Cheshire,Ct Posts: 710	Re: 8RT truck oil pan question Mechanic stethoscope at harbor freight 4.99 ,works better than screw driver

02-16-2021, 09:02 PM	#5
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,525	Re: 8RT truck oil pan question You can not access the tube through the cleanout, only the screen. You could try draining the oil, remove the cleanout and have someone crank the engine while you feel the screen. If the crank is hitting the tube, you should be able to feel it.

02-17-2021, 02:10 PM	#8
GB SISSON Senior Member Join Date: Jan 2014 Location: Orcas Island Washington Posts: 4,914	Re: 8RT truck oil pan question Be careful bending that tube... I have had some problems with those two attachment bolts stripping over the years while installing tube to pump. __________________ Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson)

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