Push Rod, Flat H fuel pump , Please help

B

bschulze

Member
I just got my machined 49-53 block back from the machine shop. (3-3/8 x 4).

The machinist pulled the bushing for the fuel pump push rod. I need to plug the hole. He advised caution as the bushing blocked oil to the (front to back) tube forcing oil around the bushing through a round recess groove in the middle of the bushing. (Please see pic).
He felt that recess groove allows oil to go to most of the bearings. With out the bushing he felt most of the oil may travel down to the rear cam bearing.

Previously, (A similar build) I just plugged the hole with a machined brass plug. It seemed to work well.

Now, I feel the need for clarification. Can you offer an opinion?

Thanks, Bob Schulze, Council Bluffs, Iowa, 7/26
 

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bschulze said:
I just got my machined 49-53 block back from the machine shop. (3-3/8 x 4).

The machinist pulled the bushing for the fuel pump push rod. I need to plug the hole. He advised caution as the bushing blocked oil to the (front to back) tube forcing oil around the bushing through a round recess groove in the middle of the bushing. (Please see pic).
He felt that recess groove allows oil to go to most of the bearings. With out the bushing he felt most of the oil may travel down to the rear cam bearing.

Previously, (A similar build) I just plugged the hole with a machined brass plug. It seemed to work well.

Now, I feel the need for clarification. Can you offer an opinion?

Thanks, Bob Schulze, Council Bluffs, Iowa, 7/26
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looks like you are going for electric pump? If so I would get the correct bushing and pump rod back in. This way it will do its oil thing. the rod only moves a little and will
make no noise. the proof is one of my trucks having a 337 has been running like that for 10 years (with electric pump) cause they want $ almost $300 for a nos which likely has a stiff diaphragm & no rebuild kits available.
 
My motor: After a lot of thinking and looking around , I'm thinking I will make a plug, drive it inside the bushing to cover the push rod tiny oil weep hole and plug the push rod hole. Just drive the bushing assembly back in its original position and sort of return it to original status, less push rod.

Frank Otto, a Flat Head guru advises simply, in his hand book, plug the push rod hole in the block.

Again, I'm open to suggestions. Thanks.
 
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