Technical V8 60 oil pressure help

Ok So I am running a 38 V8 60 in my 29 Model A rod ( I know old tech. But it's a cool little motor. I also have a 95 302/5.0 that will be going in). I just put in new main and rod bearings and a set of rings. The engine fires up on the first crank an idles fine but I have no oil pressure where I did before. All the bearing are in correctly. I made extra sure of that when I****embled the motor. I pulled the oil pump and when the pickup tube is placed in a pan of oil and turned by hand it does spit oil out the feed hole. The pump is easy to spin by hand.

Any though on the pressure issue?

 

Did you mic or plastic gauge the bearings? Is it perhaps a .010 under crank and you put in standard bearings?

 

Did you do anything to the oil pump drive gears in the rear of the block ?
You should at least have some pressure .

Tommy

 

Then of course there is always he question of the gauge itself.

@Stephen McGovern The V8 60 is definitely not a power house, but they are pretty cool motors. There really is nothing too old or underpowered for us here. Hell we got guys that run bangers and are proud of them. I like the little tin side real well myself.

 

Plasti gauges everything (who doesn't?)

Used three different gauges. One direct oil and two electronic. Test d the electronic sending unit and it works correctly.

Just scratching my head over this one.

 

I did not change anything in the pump. Did install a new gasket for it though.

 

It was actually just little over .010 about .0125. (I mic'd the crank journals as well just to be sure and compared that to the stock standard.

 

If you decide to go with the 302, please lemme know. I would be interested in the "no oil pressure" 60. I have a hand built car from back in the 40's or early 50's that is based on a shortened crosley chassis, and the body is made from pieces of a '32 (?) Chevrolet 2-dr sedan. the body was given to me by a friend from NorCal many years back. Then, about 10 years later, he called said he had found what might be the chassis. Sure enough, it is. Upon close inspection, I realized it had a 60******* and torque tube, adapted to the Crosley closed driveline. I have been looking for a while for a mill, and yours would be a challenge, which would be fun. Please keep in touch....

 

So did you use .010 bearings?

 

Yes. I probably should have had the crank turned but that is more than I wanted to put into it. Happy, happy project car.

 

You should have .0025 clearance which is fine. Maybe the pump just didn’t prime for some reason.

 

Try packing the pump with Vaseline.

 

Since the V-8 Sixty's oil pump gear has to mesh correctly with the cam timing gear are you sure its doing that when you put the front main bearing cap on? Is the pump gear Aluminum or fiber like the cam gear? Did you ever run the engine before taking the bottom end apart did it have oil pressure? Since the pump picks up oil when you spin it by hand in oil there's seems to be nothing wrong with the oil pump.

For those who don't know the 60 oil pump is part of the front main bearing cap the oil pump gear is driven by the cam gear. The 60 design is completely different than the full size flatheads the pump is located in the front.
Ronnieroadster

 

Sorry Ronnie,,,,I never knew that .
It still sounds like it is not meshed well to the gear,,,or something like that is causing it .

Tommy

 

What is no oil pressure? Lippy

 

What oil viscocity ate you using?

 

Have checked the relief valve in the valley ?

 

I'm thinking the relief is the issue if the gears are meshing correctly. If the fiber gear is bad I have a few aluminum oil pump gears left for the 60.
Ronnieroadster

 

Sorry in taking so long to get back.

Ronnie: Aluminum gear and yes is is meshed.
Doublepumper: I haven't tried Vasoline. I did notice when I pulled the pump***** to do my test (mentioned above) the tricodial gears seemd a little sloppy. So maybe the pump never primed well enough. I could measure the gear clearance. They may finally be worn far enough to not provide pickup.
'29 Gizmo: I believe it is 10/40.
KiWinUS: Actually I haven't so I will this weekend.

Much thanks for all the though and insight guys!

 

So I am getting ready to bull the oil pump. Where is the relief valve located exactly??

 

In the valley under intake.

 

Thanks,

I check the valve and it was moving freely. I pulled it anyway and used a .223 bore brush jsut to make sure no gunk was in there.

Pulled the oil pump and noticed the gasket slightly covered (about 2mm) the faces of the pump gearsso I trimmed it to be flush with the housing edge. The gears look fine with no real wear and it will push oil through when the pick up tube is placed in a bucket of oil. Guess I will fill it back up and run it on the test stand.

Thanks for all the help all!

 

I just went through a similar thing with a Chevy 6, turned out to be the pan wasn't filled enough, due to some peanut installing the wrong dipstick. Drained, refilled to workshop manual specs, all pumping well.