as far as I remember they didn't from factory, but there was a aftermarket one that sat on top of engine in a "canister" with oil lines going to it!!!!
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Some times I wake up GRUMPY, but today I let her sleep in !!!!!!!!BLACKSTOCK Ont.
There should be one installed inside the engine. You have to take the oil pan off to service it however it was advertised to last the life of the car without any service required!!!! If you have a shop manual it will explain how it works. Bob.
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1965 Thunderbird Special Landau 10th Anniversary Limited Edition only 4500 built 34,800 miles
There should be one installed inside the engine. You have to take the oil pan off to service it however it was advertised to last the life of the car without any service required!!!! If you have a shop manual it will explain how it works. Bob.
Bob, are you talking about the screen on the oil pump pickup ? GM dealers and parts shops all offered "by pass" oil filter systems for any motor. It was just a canister with a filter element in it that could be replaced. It usually was mounted on the intake manifold. This system did very little at best because it was not a full flow system. Some will say that some is better than none but a draw back is that this system robbed oil pressure, too much of it for my liking. Personally i just chose to use a good quality oil and change it every year. I have an oil filter on my 57 261 motor but it is there just for looks. Cheers.
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1957 Pontiac Pathfinder Deluxe sedan restored 261 six
1974 Chevrolet Caprice Estate wagon low mileage original 400 V-8
The filter inside the engine is the screen on the oil pump pickup. It is designed in a way that the sediment will settle to the bottom of the pickup and not block the screen. I feel that if the oil is changed regularly it shouldnt be any problem. Next time you drain the oil see if it is possible to slide a piece of stiff wire into the oil pan and see if there is sediment in the bottom of the oil pan. If there is a bunch of crap in there I would pull the oil pan and clean it out.
Paul
Dual quad Pete is correct, and I do have the shop manual which explains the internals of the oil spray, venturi and the fact that it clearly mentions that a filter is not required. I also agree that yearly oil changes is a good practice with this system.
I have attached a picture of the optional one that was installed on my engine, the yellow canister , which is no longer on the engine by the way. Good luck with your choice.
-- Edited by silver steak on Friday 30th of August 2019 06:05:23 PM
I took four picture from my shop manual of the literature regarding oiling systems for the 239 engine for your reference. Check the very last paragraph. I hope this helps
I took four picture from my shop manual of the literature regarding oiling systems for the 239 engine for your reference. Check the very last paragraph. I hope this helps
Regards
Very very interesting.
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1957 Pontiac Pathfinder Deluxe sedan restored 261 six
1974 Chevrolet Caprice Estate wagon low mileage original 400 V-8
What is really funny about this feature is that the guy who asked the question ( cadboy) never came back after my posting literature from the manual which answered his question. So much for trying to help a poncho guy?
-- Edited by silver steak on Saturday 10th of April 2021 07:46:08 AM
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New Brunswick , 1950 Pontiac Silver Streak 2 Dr Sedan, 1967 Beaumont, 1985 Sierra 1500 One Owner