Pressed Main Bearing??? WTF?

Post by **Muad'Dib** » March 21st, 2009, 3:05 pm

WTF is this?? Is it going to force me to look for another crank?

Post by **Mgardiner1** » March 21st, 2009, 3:32 pm

not sure if i see the problem...... maybe i'm missing what the question is, but i don't see anything abnormal there....

Post by **John** » March 21st, 2009, 4:28 pm

When everything is cleaned up, and new main bearings are at hand, they will press on with thumb pressure.
John

Post by **6TIME** » March 21st, 2009, 4:29 pm

The bearing halves should pop right out if you fiddle with them.

Post by **Muad'Dib** » March 21st, 2009, 4:58 pm

So all 258's have this as the #3 main bearing? Its completly different than all the others. You can even see on the crank itself that this journal is much larger than all the others... I guess im just that much of a noob to where i dont know that its something normal!!

Post by **SilverXJ** » March 21st, 2009, 5:03 pm

I don't see a problem either. That is the #3 thrust bearing, its what keeps your crank where it should be in the engine in regards to front and back.. The 4.0l has one as well.

Post by **Muad'Dib** » March 21st, 2009, 5:07 pm

Oh yeah im a total noob! Thanks for not laughing at me!!

Post by **Mgardiner1** » March 21st, 2009, 7:31 pm

Couldn't resist.

Hey Mister NOOOOOB site-owner, thats what we are here for!!!

Post by **amcinstaller** » March 21st, 2009, 9:12 pm

i asked the same question after i took apart my 4.0 and 4.2 side by side. didnt dawn on me at all, even after taking both apart. i asked elsewhere thinking my block was bad or maybe my crank. totally normal.

Post by **gradon** » March 21st, 2009, 9:32 pm

You've done enough right already for us to jump on your case--just don't make us tell you to use the search function.

Post by **IH 392** » March 21st, 2009, 10:16 pm

That crank might even polish without turning, that engine looks like it has been cared for more so than most of them on the road!

Post by **gremlinsteve** » March 21st, 2009, 10:52 pm

thats the thrust bearing. controls front to rear movement of the crank

steve

Post by **Heck** » March 22nd, 2009, 8:21 am

The distributor drive gear on the cam looks severely damaged. What happened to this engine?

Post by **Muad'Dib** » March 22nd, 2009, 11:25 am

Heck wrote:The distributor drive gear on the cam looks severely damaged. What happened to this engine?

Nothing that im aware of.. i got it for free. Someone was going to use it to replace their 258 .. but then found out they didnt need to replace the engine. Ive got it all put back together now to just get rid of it... or else id pull the cam and take a pic.

Post by **Maddawg** » May 19th, 2009, 9:55 am

I was just getting ready to ask this question

when I used the "search tab" ............LOL. Dale

at self

Pressed Main Bearing??? WTF?

Pressed Main Bearing??? WTF?

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