Oil Pump - rebuild or not

[psimet]

As a part of getting my 28 Tudor back up and running after sitting for 25 years I was dropping the oil pan. My pan has the cleanout plate though for the early A's. I pulled that plate while draining and of course the oil pump came out with it.

I knew to look for it but now that it's out I have the following question - Should I rebuild it just because it's out? Doesn't seem super expensive or hard to rebuild. Screen looks clean and I have no reason to think it isn't functioning correctly.

I have no real idea how many miles are on the car. Odometer says 11k but I have no idea if that's a rollover or reset after some sort of engine overhaul, etc. I have no reason to believe the engine has been opened up for any sort of work in the past.

So crack open the oil pump just because it's out and do some pre-emptive bushing replacements, etc or just put it back in with the pan and assume it's good to go?

[psimet]

My Oil pump is not like most o the ones I have seen - there is no spring or retainer for that spring on the bottom. The spring is attached to the cleanout plate on the oil pan.

[700rpm]

Originally Posted by psimet

My Oil pump is not like most o the ones I have seen - there is no spring or retainer for that spring on the bottom. The spring is attached to the cleanout plate on the oil pan.

I’ve never seen one like that.

[jetmek]

Check for excessive wear between shaft and top bushing. The spring attached to oilpan is a early feature. BTW I dont bother to rebuild early pumps. I favor the later type pump its beefier and new bushings are easy to get and replace without cracking the body

[psimet]

Originally Posted by 700rpm

I’ve never seen one like that.

I'll take some pictures and post them after I get home. I knew the cleanout made it different and this car is full of early parts and features but I was surprised myself.

[psimet]

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Here’s a quick shot.


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[Benson]

The spring fastened to the oil pan plate is very common with early oil pans.

At this point the most important thing is to remove and clean the filter screen inside the oil pump.

In the 1932 to 34 service bulletins it states that a very common cause for an engine needing a rebuild is a sludge clogged up oil screen.

This was a bulletin issued from the Ford plant which rebuilt engines.

[700rpm]

Thanks Benson and PSIMET. You have ahown me something I didn’t know about early As.

[psimet]

Dropped the pan tonight. Some sludge at the bottom but not much. Screen looks clear on the pump.

Based on the advice here I checked the shaft for any play and it’s solid as a rock. Spins perfectly free and no play whatsoever.

After doing a quick inspection on the bottom of the engine - there’s no play in the rods like I would expect. There’s no fore/aft movement in the crank. It’s almost like it was rebuilt not that “long” ago in its service life.

The oil pan is painted this sort of red/orange as well.

I’m starting to think it was rebuilt or at least had some work done on it. The 11k on the odometer is making more sense now. Really starting to realize it’s going to fire up easier than I thought.


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