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| | | | Joined: Oct 2009 Posts: 49 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2009 Posts: 49 | When I hook a direct line from the engine to the oil gauge, I read oil pressure. I mounted the remote bypass oil filter to the firewall, tee off the inlet line to the gauge and hook the filter return to a port on the block I think is the return, I read no oil pressure. I hear no rods knocking so I must have pressure.I am open to Any helpful Ideas to correct this.pictures help. Thanks John Baker [email protected]. | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | Pictures of what you have would be useful.
Depending on the filter/ fittings/ cannister you have there may not be any restriction in the bypass oil filter. A restriction is needed so as to not rob the engine of too much oil pressure.
If there is no restriction the gauge won't register any pressure, same as it would not register if connected straight to the crankcase, or in the oil return line, or anywhere after the restricted fitting if there is one.
Grigg | | | | | Joined: Feb 2004 Posts: 29,821 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,821 | Are you using an original equipment type oil filter, or an adapter for a spin-on filter? If you're using a spin-on, you'll need to put a 1/16" diameter restrictor orfice in the return line. Otherwise, virtually all the oil will get routed through the filter and back into the oil pan, and very little will get to the engine. that's a guaranteed oil starvation situation as soon as you get on the road with any load on the engine.
It's simpler, and a lot smarter to use the original style canister filter.
Jerry
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| | | | | Joined: Dec 2003 Posts: 1,061 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 1,061 | What is the diameter of the bill filter? I have a new one in a canister and it seems to fit really tight. It is 4 1/2 diameter.
1946 1-ton Panel
1952 1-ton Comml. W/Grain Body
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | " . . tee off the inlet line to the gauge and hook the filter return to a port on the block . . "
If your inlet line is from the rearward port in the block, and your gauge is on a T on the inlet line, your blockage must be in the T or in the line to the T (you reported that the sender line directly connected from the engine-block to gauge gave a reading?).
Disconnect the line from the engine-block to the T, at the T, and crank a little to if oil squirts out that line.
If it does, connect that line to the T, with neither outlet line connected to the T, and crank a little to see if oil squirts out the T.
If it does, connect the sender to the T, and crank a little to see if oil squirts out the T.
If it does, block the port on the T that goes to the filter, crank the engine and see if the gauge reads pressure.
If it does not, that pressure line to the gauge is now blocked.
If there is a pressure reading at the gauge, I am lost - if you now connect a line from the T to the filter, you should still get a reading at the gauge. | | | | | Joined: Oct 2009 Posts: 49 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2009 Posts: 49 | I regret that I don't have a photo. It is a stock 235 with fenton dual exhaust and offy two carb intake. The oil filter appears to be a stock one that came with the truck. It won't fit on the manifolds thus the firewall mount. I gather that the stock oil filter canister has the restriction built in.??
I will reassemble, checking for flow at each connection.
Thanks for your input. | | | | | Joined: Oct 2009 Posts: 49 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2009 Posts: 49 | pretty sure it is original equiptment. I will check my plumbing job.
Thanks
JB | | | | | Joined: Oct 2009 Posts: 49 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2009 Posts: 49 | I will check the plumbing. Thanks for the input. | | |
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