Oil pump on engine rebuild

[Cuerno Largo]

I am in need of some opinions regarding my engine oil pump.

I am getting ready to rebuild my 2F. I have the original oil pump and there were no indications that it was malfunctioning.

So... since OEM pumps are not available, should I replace it with an aftermarket, or keep the original there?

 

[desertpat]

You might be able to get a new set of gears for the pump - they weren't available here.
The tolerance can be measured for wear.
The high pressure relief piston port can be cleaned out, checked, and the piston replaced.
The piston was available.
cheers

 

[Magnum44]

Well, when I built my 2F I had the same dilemma. As a friend of mine said (who has built many engines in his career) changing an oil pump is cheap insurance. If you decide not to and it goes south on you up in the boonies or ruins your engine the few bucks you saved (relative to the cost of the engine) sure won't be worth it. Plus it's peace of mind. Change it out

 

[Magnum44]

Here is a link for the oil pump assembly-

Oil Pump Toyota Land Cruiser FJ40 FJ55 FJ60 FJ62 2F 3F - JTOutfitters

 

[Cuerno Largo]

I don't mind spending the money on a new one for the insurance of not having to replace sooner rather than later.

Are the aftermarket pumps just as good as OEM? Would anyone see this as a compromise or trade down in quality?

Thanks for the link Magnum.

 

[Magnum44]

In that link it did mention Aisen as being the original manufacturer and the current manufacturer of that particular pump. As far as quality goes the one I put in is still going to this day as far as I know and it's been over 15 years now. I don't own that cruiser anymore but I have talked to the other owners who had no problems at all.

 

[Trollhole]

So... since OEM pumps are not available, should I replace it with an aftermarket, or keep the original there?

Who told you this? They are smoking crack.

Last time I checked a week ago they were available. Was this for an early 2f? I think those are not available but you can use the later style as I have been told.

Also you can just flip the gears and if it specs out you are good to go. But if I was doing a rebuild I'd spend the 95 dollars and have a new one.


2F original manufacturer oil pump.

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[Cuerno Largo]

Who told you this? They are smoking crack.

Last time I checked a week ago they were available. Was this for an early 2f? I think those are not available but you can use the later style as I have been told.

Also you can just flip the gears and if it specs out you are good to go. But if I was doing a rebuild I'd spend the 95 dollars and have a new one.

Yeah, it is for a 2F out of a 75. The crack smoker was CDan

So a pump for a later style will work

Edit: thanks for the link. I am saving that one.

 

[Trollhole]

Yeah, it is for a 2F out of a 75. The crack smoker was CDan

So a pump for a later style will work

Edit: thanks for the link. I am saving that one.

lol. I gonna go to hell for that one.

I think the issue is gonna be with the baffles in the oil pan for the early 2f's. They get in the way of the new pump. But from what I have heard you can take the top off the old pump and put it on the new pump. But someone who has actually done it needs to chime in. I don't know the answer.

 

[peterb]

If you use the later model pump (which is what I did in my '75) you will probably have to trim a baffle in your oil pan. I cut it near the welds and bent it until it cleared the pump.
Good luck
Peter

 

[Pighead]

Shoot, when I built my 2F, I had half a dozen used oil pumps to choose from...I wasn't about to buy a new one. I guess that was about 4 years ago now. Put a feeler gauge in there, and then flip the gear anyway and run it. And run a real oil pressure gauge too. And carry a good spare with you.

 

[andrewfarmer]

As most wear is on the end of the gears and the end plate/housing, you can get the gears, housing, end plate machined at resolve a lot of the wear issues.

I've swapped end plates over between older and lewer pumps OK - but it's also easy to gently trim the baffles to suit the later type.

I'd tweak the pressure releif valve while in there also

 

[Teebag]

Tweak - how?

 

[KY Longhunter]

rewind...replacing Oil Pump OEM vs aftermarket

I currently have motor out of my '81 40 on engine stand with oil pan off and oil pump removed.

1) how do I tell if my existing pump is OEM or aftermarket?

2) OEM = $202, aftermarket = $100 roughly

I called CruiserDan today and he suggested if pump was running when motor whas shut down, no need to replace pump as it is sitting in oil pretty much 100% of time.

Should I replace and if so is aftermarket pump ok?

Or is worth $100 to go ahead with OEM pump?

Thoughts?

 

[Degnol]

Shoot, when I built my 2F, I had half a dozen used oil pumps to choose from...I wasn't about to buy a new one. I guess that was about 4 years ago now. Put a feeler gauge in there, and then flip the gear anyway and run it. And run a real oil pressure gauge too. And carry a good spare with you.

You and I are on the same page. Right down to the gnat's ass.


Ed

 

[KY Longhunter]

Shoot, when I built my 2F, I had half a dozen used oil pumps to choose from...I wasn't about to buy a new one. I guess that was about 4 years ago now. Put a feeler gauge in there, and then flip the gear anyway and run it. And run a real oil pressure gauge too. And carry a good spare with you.

Is this a difficult procedure...flipping the gears?

 

[KY Longhunter]

Nevermind, I Just found an AISIN oil pump for $95 and free shipping with a little help from a friend...

ALL-FOREIGN CAR PARTS - Import & Domestic Car Parts, Import & Domestic Truck Parts, Brakes, Rotors, Distrubutors

Thanks Kieran !

 

[KY Longhunter]

Oil pump install question

I bought a new oil pump from All-foreign parts (thanks trollhole!) and am installing but now have a new question.

There are 2 copper thrust washers that are used on both sides of union bolt. I had a heck of time getting this bolt off and of those washers looks a little boogered up.

Maybe an obvious question, but do I need to replace these copper washers?