I’ve done this 3 times I can’t figure out what I’m doing wrong. Clevite h bearings eagle crank 402 stroker kit.

.0015-.002

 

Following this thread. I am building a motor and tried using plastigage. Couldn't get any consistent results. I'm taking mine to my local shop to have them measure everything...

 

Crazy question, what’s the temperature while you are doing this?

 

Excellant idea. If you don’t have the means to accurately measure it yourself, please have it done by a pro.

 

Yea so i have the means to accurately measure it myself.

I'm going to wait until it cools down and see if the temperature has something to do with it as it is supposed to be done at room temp.

 

If you block has been already a-line hone?it has to be a bent crankshaft.

 

block is brand new
Edit: everything is brand new

 

Looks like your within 0.0005 on your measurements. That is right around the accuracy limit of plastiguage. I would say you are a little tight.

 

You stated this is a new block. What Block are you using?

It appears there is some rust or debris on the registers of the caps and the block. If the caps and block look that way where the bearing sits, that will affect the clearances.

 

Its a gm ls2 block brand new.

 

80ish degrees. I just don't know about the accuracy of plastigage

 

Plasti squish readings can vary. Was this on a dry surface or lightly oiled surface?

 

You could put 1and #5 bearing in the block if u have a dial indicator and check run out on your crank.and just because it new means nothing.im dealing new RHS block that supposed been honed to 4.165 guess what.wiseco was right on the money 4.161

 

New should, but does not mean, correct.

Have all the bearing ring caps on the correct way? I just learned there is a little more to this than I thought.

Also, some people use a seating torque for the main caps at first, break them loose, then torque to value.

 

It is lightly oiled with degreaser to clean it off

 

Ok changed several things and re did it twice. Got a new degree torque tool and on the first one I used the same plasti gauge brand on the second one I used a different brand. The 2nd one I rotated the crank 180 degrees ish.

 

Actually looking at 1B-5B they all kinda look around .0015 give or take .0002 or so.

 

Have you installed the crank yet to see if you could turn it by hand and finger?

 

What do you mean just torque it down and see if it turns?

 

Check run out on thrush main