MAIN BEARING REMOVAL IN CHASSIS WITH CRANK

any advise on how to get the top ones out.. and back in lol? have all caps loosened but and was able to get it to come out like 3/4in but cant get anything in there to push it the rest of the way.. need advise from someone whose done it!!! PLEASE HELP

I havent done it on a 4.0, but i have done it on other motors quite a bit. you should be able to get them out. obviously, they're only going to come out one way. the bent tab has to come ouut, so tap it from the other side. generally a flathead screwdriver is goot for tapping it free, then i take a small prybar and go on the other side and tap it or pry it out, being EXTREMELY careful not to ding the crank journal. I know there's enough play in the crank once all the main caps are removed to get them out.

I will have to try pry bar. I know it only comes out one way and its started, I just cant get anything safely in there to push anymore. I tried pulling the other side with pliers but couldn't get it to budge

Why did you start a new thread for this??

Go back to your original thread. I answered your question there.

I recommend using a piece of thick (say 20 thou thinner than the bearing shell, or so - maybe about 16-14ga?) brass sheet stock as a punch to drive it out. That way, even if you miss a little, you aren't going to scratch the crankshaft.

Scratch the crankshaft even a little and you will not really improve the quality of your day.

edit: the main bearing with the thrust bearing (#3? #4? I forget) is really going to suck.

you can make the tool from a cotter pin, a flat head nail or small bolt.
The shannk fits in the crank oil hole and head protrudes slightly but no more than the thicknessof the bearing. Just rotate the crank and the bearing shell comes right out.
or you could go to Miller tools item 3059A5 and buy it.
Joe
Miller Tools C-3059A Crankshaft Upper Main Bearing Remover / Installer ID/SKU: MSTC-3059AYour Price: $69.82

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</DIV>Miller Tools C-3059A Crankshaft Upper Main Bearing Remover / Installer ID/SKU: MSTC-3059AYour Price: $69.82

</DIV>

kastein said:

edit: the main bearing with the thrust bearing (#3? #4? I forget) is really going to suck.

Click to expand...

#3

joelevelis said:

or you could go to Miller tools item 3059A5 and buy it.
Joe

Click to expand...

LOL. $70 for something a good sized cotter pin would work great for. IIRC the FSM even recommends it.

You can drop the crank a good bit with out causing an issue. Even 1/16" would help a lot. Loosen front and main caps just enough to support the rear and front of the crank. Remove the 2-6 caps and start removing the bearings. If you are spinning them out with the crank make sure you turn the crank in the correct direction as there is a small key on one side of the bearing.