bad thrust bearing?

[pyromanic]

So after trying detergents, a new oil pump and just driving a thousand miles, maybe my old machanic buddy has figured out this engine noise?

 

Thought it was TOD for months, but could not consitantly get it to go away.

 

What he discovered is a lot of end play, or forward and backward movement in the crank shaft. Stuck a prybar throught the timing mark hole and pried on the flywheel. I stood there and watched the crank pully move in and out. Maybe up to an 1/8 inch. At least a 1/16. He says bad thrust bearing.

 

This soud is kind of hollow "tock tock tock", more than a click or tick. I expect lifters to tick or click.

 

I see that main and rod bearing sets are not that spendy, and since the hitache carb is pretty much de-emmisioned, an engine pull is not really that big a big deal for me.

 

But before I do this thought I should run this by the experts.

 

So what do you guys thinK?

 

Am I barking up the right tree?

 

Oh, by the way, before I bought it, it got a re-seal, new belts and heads. Maybe 15000 miles ago. Was told it was a long block job, but I aint buying that now.

 

Thanks,

Pyro

[calebz]

I had the same thing happen on my wagon. It just didn't seem worth it to me to fix it, so I just drove the piss out of it and then acquired a decent used shortblock, which is what prompted the current round of insanity and mods.

[erik litchy]

i never knew crankwalk happened to subaurs. i thought it was mainly mitsubishis.

[pyromanic]

i never knew crankwalk happened to subaurs. i thought it was mainly mitsubishis.

 

"Crankwalk". Thats funny. Didn't know that term, but it's perfect. So I gather that the main bearing which is "thrust", is center?

 

I also gather it will just get louder and louder as time goes. (which it already has) Damn, this one had me confused for months. Everybody insisted it TOD, but now I guess not.

 

I've got a couple extra tired EA-82's around, one is SPFI. Not sure what to do.

 

Guess I'll drive it for while.

 

But hunting season is not far off, will need to put some tough miles on it in October. I need it ready. PK's lift should ship this weekend (hope hope!) He said so anyhow.........

 

The thing is, I believe that this engine has had a lot of good work done to it, and maybe some bad too. Hate to scrap it. It runs great, doesn't leak. Good compression.

 

Hmmmmmmm.................

 

I don't know.

 

Pyro