How does this bearing look ?

[mbaird]

While replacing the main seal on my engine, I took a look at the bearing on the rear cap and wanted some opinions on it .

 

[318willrun]

yeah, too much copper for my liking. Be curious what the thrust bearing looks like.. But, I'm sure plenty look like that and are still on the road

 

[RustyRatRod]

Appears to have been not lubricated well at initial startup, but is ok now.

 

[nutz]

coating delamating

 

[Oldmanmopar]

Not good. Time for a new set and some crank polishing.

 

[mbaird]

I will pull the rest of mains and rods . Might as well replace them while I have engine out .

 

[mbaird]

BTW … this engine has close to 30k on it .

 

[318willrun]

BTW … this engine has close to 30k on it .

30k wouldn't do that alone.... but what KIND of 30k might !!!! LOL

 

[RustyRatRod]

BTW … this engine has close to 30k on it .

Then I don't think there's any question it happened very early on or it'd be MUCH worse.

 

[mbaird]

I also noticed the oil pump drive has a lot of play in it. It wobbles quite a bit when I move the hex end . Engine is upright on stand with cam and intermediate shaft still in place . Might need a new bushing .

 

[TT5.9mag]

I’m against the masses here and think it looks ok to me. Had a little trash go through it at one point but the coating wearing off is pretty normal. For 30k it looks normal.

 

[mbaird]

Maybe I should just throw a 4” crank in it while it’s out.

 

[318willrun]

What's the journal look like??

 

[TT5.9mag]

Maybe I should just throw a 4” crank and pistons in it while it’s out.

Fixed it for you.

 

[mbaird]

Fixed it for you.

I picked up a set of Icon +.030 pistons for a 4” stroker a few weeks ago for $200 so I have those.

 

[mbaird]

I picked up a set of Icon +.030 pistons for a 4” stroker a few weeks ago for $200 so I have those.

4 runs on them the crank had a crank issue .

 

[mbaird]

4 runs on them the crank had a crank issue .

Oops got distracted while writing that post .

 

[Dan the man]

I will pull the rest of mains and rods . Might as well replace them while I have engine out .

Good idea

 

[mbaird]

I think this should work for a hot daily driver .

https://a.co/d/6R83w2h

 

[Kern Dog]

What seems odd to me is that the bearing cap is the same gold-ish brown color as that one edge of the bearing. Does that mean that part of the bearing isn't making contact with the main journal?

 

[mbaird]

What seems odd to me is that the bearing cap is the same gold-ish brown color as that one edge of the bearing. Does that mean that part of the bearing isn't making contact with the main journal?

I thought about that . Can’t remember if I had it line honed

 

[Dan the man]

I picked up a set of Icon +.030 pistons for a 4” stroker a few weeks ago for $200 so I have those.

Where they new?

 

[Dan the man]

I will pull the rest of mains and rods . Might as well replace them while I have engine out .

I'd have the crank mic and see if it needs to be turned or just a polishing and I'd inspect of replace the oil pump.

 

[George Jets]

Looks like the crank bearing insert is doing its job.

Softer material protecting the the more intricate crankshaft.


☆☆☆☆☆

 

[Bodyperson]

What's with what looks like chatter marks on the block to main mating surface? Is it walking?