1947 oil filter assembly question

[Sod Buster]

I pulled the oil filter assembly on my recently purchased 47, that bad boy had a coal nugget in each of the bottom indentions of the canister, looked like another year or two and it would have turned into a diamond, lol. I pulled the line that runs from the side of the oil filter assembly to the back of the block that fitting on the oil filter assembly has a piece in it with just a small hole to allow oil to pass through running to the back of the engine block. My question is why is the oil flow restricted like that?
Getting ready to drop the pan and put a new oil pump in and clean what felt like maybe a quarter inch of sludge in the bottom of the pan also.

[JSeery]

The oil flows from the rear of the block to the filter and from the bottom of the filter to the oil pan. The restrictor is there because it is a by-pass filter and only allows a portion of the oil to go through the filter at a time.

[alanwoodieman]

if you leave this restrictor off you will have NO oil pressure

[JSeery]

Originally Posted by alanwoodieman

if you leave this restrictor off you will have NO oil pressure

Well, not no oil pressure, but it will lower the oil pressure.

[alanwoodieman]

well if you consider that 10lbs running pressure OK then yes you will have oil pressure until the rods/main get wiped

[Mike in AZ]

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Why replace oil pump? 1/4” not too bad. I think. Mike

[cas3]

i agree with mike, the ford pump may be better than what you bought. if its already apart, you could take the four bolts off the bottom and look to see if the gears have been rubbing on the cover too bad, and mainly the sides of the housing. if not, its a good pump. put some bushings on the shaft yer done.

[34PKUP]

If you are replacing the oil pump to correct a self perceived low oil pressure condition, then I suspect that you will be disappointed with the results of your efforts.

[Sod Buster]

Thanks for the reply's, my reasoning for changing the oil pump was that with the pan off I figured I might as well. the car is showing 32,000 on the odometer, the engine in the car is amazingly clean after getting the dust off. I am replacing the cooling system with new hoses and pumps along with the ignition parts.

[Mike in AZ]

If you have good oil pressure, probably no need to replace the pump. Mike

[Drbrown]

MY '47 has never had a filter. Change oil every 1,000 and use reg HD 10w-30 and valve chamber has stayed clean. HOWEVER, that's NOT to suggest getting rid of the filter .... got it, use it.

Otherwise, I agree, stay with a stock OE pump if at all possible and important to run the engine for relatively long time periods so oil gets hot and condensation is removed.

[Sod Buster]

Thanks for the suggestions, I will go head and leave the old pump, I am going to clean the pan, it's bugging me, lol, if Henry hadn't put that coffee can size drain plug in it I wouldn't have been able to feel it in there, once I touched it I became one with the sludge, it has to go. The filter assembly had four chunks in the bottom that had moved beyond sludge, they were growing legs, I felt nothing like that in the pan but what the hell I have the time.

I wish I could figure out the photo posting for the site, the car is somewhat unique as it was customized in 1968, the interior is pretty different, the kid that owned it painted all the dash, trim around the doors, and hubcaps candy apple red, then burned stripes with a torch then clear coated it, it's not a hacky paint job but old, the dash chrome was not painted just the metal and trim around the windshield and mirror. The three speed linkage is shifted to the left side, so it is a left hand shift car, the story on that was the kid liked to put his arm around his girl and first to second was faster, as the pattern is reversed, the amber shift knob has a toad in it, lol. The ash tray handle are small pistons as is the hood pull, its looks to have been rat rodded back when no one knew what a rat rod was, the seat back buttons are silver fifty cent pieces.

[cas3]

be sure to clean the screen at the bottom of the pump while you're in there. icky job huh

[Sod Buster]

Not to bad, I kind of enjoy wiping the crude off the old girl, I found a mercury dime and three wheat pennies on the intake manifold, lol.

[JSeery]

The photos have to meet the size requirements, ~500k or less.

[Sod Buster]

I use Smugmug as a hosting site, and have tried resizing to post here but am still having problems.

[Sod Buster]

That last post when I try to post the image to the mountain icon above, takes it then nothing, if I go back to edit the img is there but no photo, and it was resized.

Link to photos of the car.

https://donm.smugmug.com/Cars/1947-F...an/i-pBkDnsC/A

[flatford8]

I agree with your plan to “inspect” the pump and repair if necessary, but I think what the others are saying is yours working correctly is better than some of the replacements.... there are people on here who you can e-mail your pics to and they will resize and post them. Sounds like a great car.... Mark

[Sod Buster]

I managed to at least link too the photos of the 47, in the above post.