Oil Pump Pickup

[NitroRustlerDriver]

I'm starting on building a new oil pan for my MGB project and have a question. The stock pan has the pickup built into the upper pan and has a slot/gallery to cover two holes in the block as seen here:





Here is basically where the "slot" covers on the block.


The round hole looks to go to the oil pump while the more square shaped one looks like it is a drain from the timing cover.

My question is, do I need to encase both of these like the stock pan does, or can I make the pickup only over the round oil pump hole?

[pdxmotorhead]

Looks to me like the square hole is the pickup and the other hole is the oil pump pressure relief valve. It recirculates the oil if it works like a regular oil pump relief valve.

I'd definitely use a wire to trace them...

Dave

[Toby B]

yup, that's the relief valve on the left side.

drain's on the right side, as the motor tilts right in the car.

Suppose you could just feed the square hole, as the bypass valve can dump
back into the pan...

t

[pdxmotorhead]

If it was done carefully you could machine the hole round and press a new pickup tube in and put a pickup off another engine in the bottom of the new pan.

Good Luck!
Dave