Which rod and main bearings to get? (1 Viewer)

[GoogleBhrome]

Hey guys got an 80 series 94 Land Cruiser, looking to replace rod and main bearings. Tried looking thru the forum and found the FSM. It kind of makes sense, but I wanted to be sure that i will be ordering the right bearings.
All the rod bearings say d4fa4 on the actual bearing, and main bearings say 4e62j/4e63i. I didn't get any pictures of the actual bearings, I can do that if needed.
Do I order #4 bearings for all of them?

thanks for the help guys, glad to join the forum!

 

[mudgudgeon]

You need the numbers stamped on the crank and block as well.

The FSM has a little table. You combine the number on the crank, and the number on the rod, to see what size bearing is needed for each rod.

Same for main bearings. There's numbers stamped on the block, and on the crank.

I'n not sure you can rely on the numbers on the bearings themselves. I never found any info that clearly identified the bearing size by the numbers on any of mine

 

[mudgudgeon]

This ^^ is assuming your crank or rods have never been machined, and still measure out to spec

 

[mudgudgeon]

Crank has two lots of numbers stamped on it.

Rod journal size is in the rear of the crank.

Main bearing journal size is on the front end

Diagram also shows where main journal size is stamped on the bottom of the block. You may need to do some cleaning to find these.

 

[powderpig]

Look at the crank real carefully and see if you have any punch stamped numbers like .010 or .020 on the crank beside the Toyota Numbers.
this will indicate it has been turned. If the crank has been turned, you will need the bearing to match that. Which Toyota does sell bearings to match a turned crank. If you want good aftermarket bearings, then you can not go wrong with Taiho bearings. Made in Japan great quailty. Just remeber to get the thrust bearing as well.

 

[GoogleBhrome]

Crank has two lots of numbers stamped on it.

Rod journal size is in the rear of the crank.
View attachment 3835012

Main bearing journal size is on the front end
View attachment 3835013
Diagram also shows where main journal size is stamped on the bottom of the block. You may need to do some cleaning to find these.

Alirght. I think that makes sense. For example, rod 2 would be bearing 5? Actually all the rods at the side of the cap, they say 3. So all of them would be bearing 5? Crankshaft say 2, and block say to so i should be good ordering #4 mains right?
Thanks for the help!

 

[GoogleBhrome]

Look at the crank real carefully and see if you have any punch stamped numbers like .010 or .020 on the crank beside the Toyota Numbers.
this will indicate it has been turned. If the crank has been turned, you will need the bearing to match that. Which Toyota does sell bearings to match a turned crank. If you want good aftermarket bearings, then you can not go wrong with Taiho bearings. Made in Japan great quailty. Just remeber to get the thrust bearing as well.

Sounds good. Would the crank be turned down from the factory? Got it from the first owner.

 

[manofthewoods]

Sounds good. Would the crank be turned down from the factory? Got it from the first owner.

It's unlikely that your crankshaft has been ground. To check, you could measure with a micrometer. The difference would be noticeable enough.

When I replaced my main & rod bearings, I simply went with stock sizes because everything was already working fine. I.e., no significant wear. The benefit of running decent oil, reasonable OCI's, and robust design and manufacturing.

 

[GoogleBhrome]

It's unlikely that your crankshaft has been ground. To check, you could measure with a micrometer. The difference would be noticeable enough.

When I replaced my main & rod bearings, I simply went with stock sizes because everything was already working fine. I.e., no significant wear. The benefit of running decent oil, reasonable OCI's, and robust design and manufacturing.

Makes sense I checked and they’re not ground. Did my previous comment about the bearing sizes make sense?

 

[mudgudgeon]

Makes sense I checked and they’re not ground. Did my previous comment about the bearing sizes make sense?

Yes.

 

[GoogleBhrome]

Yes.

Thank you so much for the help!