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1961 Mf 35 rocker bar no oil

H

Hugel

Member
Good morning. I have the valve cover off and was cranking the engine over to see if oil was coming up to the rocker bar. None came up using the starter. Is this normal?
 
I Just installed new pistons and rings in my 1961 Perkins diesel 35. I was cranking the engine over on the starter with valve cover off and no oil came to the top of the head. Is this normal?
 
I am not familiar with a 35 engine.

However, on a 65 gasoline you can block the oil flow by assembling the rocker shaft incorrectly. The I.T. manual I have has bad information, you need to rotate the shaft 180 degrees from what the book says if you want oil on the rockers.
 
Remove oil line at source on Engine Block and check for oil while cranking Engine:
a251405.jpg

a251406.jpg
 
I removed the oil feed line at the block and nothing comes out. Also I filled the new oil filter before installing so it would not need to be pumped full before feeding the engine.
 
didnt replace the pump. Checked the plunger spring free length and new pistons,rings, and rod bearings
 
If I recall that Perkins "meters" the head line oil through a cam journal, oil flows only when the holes are aligned. The Perkins forklift I had you could watch the oil pressure gauge needle move up-down a bit each time the holes aligned to allow oil to the head. Also may need to turn the rocker shaft to "adjust" the rocker arm oil flow, should be in the service manual. Get the engine running at idle and see what you have, don't wait for the starter to bring it up as it may take awhile.
 
(quoted from post at 11:22:08 12/24/17) If I recall that Perkins "meters" the head line oil through a cam journal, oil flows only when the holes are aligned. The Perkins forklift I had you could watch the oil pressure gauge needle move up-down a bit each time the holes aligned to allow oil to the head. Also may need to turn the rocker shaft to "adjust" the rocker arm oil flow, should be in the service manual. Get the engine running at idle and see what you have, don't wait for the starter to bring it up as it may take awhile.
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I removed the oil filter housing and I see nothing has made it to there yet. Do you think I should fire the engine and see if the extra idle rpm will draw the oil up
 
On repair engine startups I leave out the injectors or plugs, and prime the oil system using the starter. Engine will turn over a bit faster with the injectors/plugs out. Over fill the oil by one pint helps raise the level too so the pump will prime faster. I've NEVER had an engine that took longer than one minute cranking. If you have nothing by then I'd drop the pan and make sure pickup line is tight, if it's loose it will draw air instead of oil. Was the oil pressure OK before engine was torn down?
 
(quoted from post at 17:17:20 12/24/17) On repair engine startups I leave out the injectors or plugs, and prime the oil system using the starter. Engine will turn over a bit faster with the injectors/plugs out. Over fill the oil by one pint helps raise the level too so the pump will prime faster. I've NEVER had an engine that took longer than one minute cranking. If you have nothing by then I'd drop the pan and make sure pickup line is tight, if it's loose it will draw air instead of oil. Was the oil pressure OK before engine was torn down?
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The pickup line was cracked. So I braised it back together.
mvphoto8050.jpg

Oil pressure was low due to the crack in the pipe. I know it is tight after welding
 
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