Re: 1951 288 Screw On Oil Filter and Bracket
Posted by HH56 On 2019/5/24 14:23:47
Quote:
Very possibly not on the 200. Filters were optional as were hydraulic lifters for the 200 but was generally included on the other models which were higher end and more likely to have had hydraulic lifters purchased. If the hydraulic lifter option had been bought on your engine it would probably have had a filter.
On your earlier post you mention removing a small tube and installing the filter. If you mean the small curved pigtail connecting the bottom port on the block containing the sender to the port just above it, that small tube is the supply for the lifter gallery. It is not ideal from a consistency standpoint, but without having hydraulic lifters you could install the spin on filter inline and leave it unrestricted. All oil going to the lifter gallery thru the filter first was an accepted practice on the first version 288/327 solid lifter blocks. Those engines did not have a separate filter return port. Even with a clogged filter there was generally adequate flow to provide lubrication for solid lifters.
The big issue was with hydraulic lifter cars where inadequate volume and pressure caused by clogged filters would result in noisy lifters. On possibly 23rd series 50s but definitely by the 24th 51 models when hydraulic lifters became more the norm for all models they added a return port to drop the filtered oil directly into the crankcase. All the 288/327 engines from then on kept the pigtail in place feeding the lifter gallery directly from the supply port. The filter was supplied from one side of a 4 way fitting on the bottom supply port and the lifters kept their supply via the pigtail on the other side of the fitting.
Here is an illustration showing an earlier filter install on a solid lifter 22nd series engine. You could do the same using your unrestricted spin on.
Attach file:
(136.72 KB)
kunzea wrote:
The motor has mechanical lifters and has no filter. I don't think it ever had one.
Very possibly not on the 200. Filters were optional as were hydraulic lifters for the 200 but was generally included on the other models which were higher end and more likely to have had hydraulic lifters purchased. If the hydraulic lifter option had been bought on your engine it would probably have had a filter.
On your earlier post you mention removing a small tube and installing the filter. If you mean the small curved pigtail connecting the bottom port on the block containing the sender to the port just above it, that small tube is the supply for the lifter gallery. It is not ideal from a consistency standpoint, but without having hydraulic lifters you could install the spin on filter inline and leave it unrestricted. All oil going to the lifter gallery thru the filter first was an accepted practice on the first version 288/327 solid lifter blocks. Those engines did not have a separate filter return port. Even with a clogged filter there was generally adequate flow to provide lubrication for solid lifters.
The big issue was with hydraulic lifter cars where inadequate volume and pressure caused by clogged filters would result in noisy lifters. On possibly 23rd series 50s but definitely by the 24th 51 models when hydraulic lifters became more the norm for all models they added a return port to drop the filtered oil directly into the crankcase. All the 288/327 engines from then on kept the pigtail in place feeding the lifter gallery directly from the supply port. The filter was supplied from one side of a 4 way fitting on the bottom supply port and the lifters kept their supply via the pigtail on the other side of the fitting.
Here is an illustration showing an earlier filter install on a solid lifter 22nd series engine. You could do the same using your unrestricted spin on.
Attach file:
(136.72 KB)
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