3b oil pump

[googledave]

Refreshing a 1985 3b. PO ran it with no oil. Luckily the only damage done was to the camshaft bearings… so now I’m trying to decide if this oil pump is any good… when I tore into it the larger gear was flipped arrow side down … I’ve always seen both arrows side up in previous oil pumps… is this to much scoring to reuse? Clearances are with in spec but wondering if I should run it as is, or buy new gears and pump cover or just blow $500 on a new (aftermarket) timing cover and pump… also, should I flip that gear to arrow side up if I do reuse the gears? Thanks all!

 

[Eurasiaoverland]

If you can get new OEM gears and cover, I would replace them. For later B engi e at least, they are cheap parts.

How bad were the cam bearings? They start to disintegrate with age even with good maintenance. I doubt they would be the first thing to get trashed when running without oil.

 

[googledave]

This is what they looked like…. Main bearings were perfect.. engine has 186,000kms the rest of the engine is perfect… well except for rocker assembly. They got toasted as well.. sent them off to get rebuilt..

 

[googledave]

Also, don’t know if I can get oem gears. Haven’t looked into it yet. Thanks..

 

[iliketrucks]

You're in luck because toyota brought some of those back from the dead with their heritage parts program, see the first 3 items on this list:

https://toyotagazooracing.com/-/media/TMC/tgr/global/contents/gr/heritage/pdf/2024/Landcruiser40_en.pdf

 

[OGBeno]

They are still available new. Buy a new one and never think about it again.