Oil filter bypass valve question
jeepboy45
Old Time Jeeper
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- 1,239
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- Location
- Altamonte Springs, Florida
- Vehicle(s)
- 1979 CJ-7, Newly rebuilt AMC 360!, fully rebuilt GM TH400, Quadra-trac TC w/Milemarker 2x4 conversion, AMC mod 20 rear w/1 piece Moser axleshafts, mod 30 front w/tie rod flip and castor correction shims, 4 in lift, Centech complete wiring harness, dual electric fans on 3 core aluminum radiator, tilt steering wheel, 20 gal poly gas tank, new J20 steering box, MSD 6A ignition combined with TeamRush distributor mods
This is becoming a bit of a joke ! And not in the fun kinda way.
I have collected enough AMC parts (pretty much 4 or 5 of every engine part) that I have begun to notice very definite differences.
There is a book called "BJ builds an AMC". Someone recommended it to me, and I bought it. It has some good innovative ideas, but all-in-all not too much different than the technical service manual that I got from the AMC dealer 25 years ago.
There is one part where for initial engine break-in he blocks off the bypass valve to ensure total oil filtration for the initial oil change, then he returns it to normal.
I wasnt going to do his temporary modification, but while I was cleaning the housing, it got me looking at that valve on the housing where the filter screws on.
The one on the left is the one I was going to use. It has absolutely NO blockage, and in theory would allow oil to bypass the filter.
The next one in the picture has what I remembered to be correct. A spring loaded "blockage" that would allow oil to pass when there is enough pressure. (as if someone had a clogged up filter)
The one on the right has a total blockage, actually cast into the metal, with no "springiness", so that it could not allow oil to pass....
WTH????
I assume the one is correct, but ????????????????????
Imput would be greatly appreciated....
(BusaDave and CJ usually cant stand remaining silent !!!) again, WTH??
I have collected enough AMC parts (pretty much 4 or 5 of every engine part) that I have begun to notice very definite differences.
There is a book called "BJ builds an AMC". Someone recommended it to me, and I bought it. It has some good innovative ideas, but all-in-all not too much different than the technical service manual that I got from the AMC dealer 25 years ago.
There is one part where for initial engine break-in he blocks off the bypass valve to ensure total oil filtration for the initial oil change, then he returns it to normal.
I wasnt going to do his temporary modification, but while I was cleaning the housing, it got me looking at that valve on the housing where the filter screws on.
The one on the left is the one I was going to use. It has absolutely NO blockage, and in theory would allow oil to bypass the filter.
The next one in the picture has what I remembered to be correct. A spring loaded "blockage" that would allow oil to pass when there is enough pressure. (as if someone had a clogged up filter)
The one on the right has a total blockage, actually cast into the metal, with no "springiness", so that it could not allow oil to pass....
WTH????
I assume the one is correct, but ????????????????????
Imput would be greatly appreciated....
(BusaDave and CJ usually cant stand remaining silent !!!) again, WTH??
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