Results 1 to 6 of 6

Thread: Crank bearing oil fees hole size?

  1. #1
    Join Date
    Mar 2013
    Location
    Portland
    Posts
    1,430

    Default Crank bearing oil fees hole size?

    I put the main bearings in and measured with Plastigauge
    I'd estimate all at .0015

    When I put the uppers in, I noticed the oil feed opening on the block is like 1/4" dia
    The bearing opening is oblong, and has roughly 1/2 the opening as the block.
    As well, the bearing's opening (all of them) are slightly out of line with the block.

    How much smaller of an opening should the bearing feed hole be?
    Sorry, I don't have pics at the moment.
    Be strong when you are weak.
    Be brave when you are afraid.
    Be humble when you are victorious.
    But be a badass everyday!
    . . . . . . . . . . . . . . .

  2. #2
    Join Date
    Mar 2013
    Location
    Portland
    Posts
    1,430

    Default Re: Crank bearing oil fees hole size?

    OK here's the pics...
    Journal 1 right / 2 left
    Click image for larger version. 

Name:	1-2.jpg 
Views:	56 
Size:	522.7 KB 
ID:	9916
    3 right / 4 left
    Click image for larger version. 

Name:	3-4.jpg 
Views:	52 
Size:	544.3 KB 
ID:	9917
    5 right / 6 left
    and 5 is like WHY BOTHER....
    Click image for larger version. 

Name:	5-6.jpg 
Views:	53 
Size:	522.0 KB 
ID:	9918
    6 right / 7 left
    Click image for larger version. 

Name:	6-7.jpg 
Views:	49 
Size:	559.2 KB 
ID:	9919

    so would I file the bearing?
    ....or the oil hole in the block?
    Last edited by Infidel Edition; 11-06-2016 at 12:08 PM.
    Be strong when you are weak.
    Be brave when you are afraid.
    Be humble when you are victorious.
    But be a badass everyday!
    . . . . . . . . . . . . . . .

  3. #3
    Join Date
    Mar 2013
    Location
    Portland
    Posts
    1,430

    Default Re: Crank bearing oil fees hole size?

    BTW~
    These are King MB7711SI
    I thought King were OK. Do I need to reconsider and go with a different brand?
    Be strong when you are weak.
    Be brave when you are afraid.
    Be humble when you are victorious.
    But be a badass everyday!
    . . . . . . . . . . . . . . .

  4. #4
    Join Date
    Sep 2009
    Location
    Chico, CA
    Posts
    29,847

    Default Re: Crank bearing oil fees hole size?

    I would take a look at #4. It doesn't seem to be on an oil journal. It doesn't have to be totally aligned, but does have to be on a hole somewhere.
    230 hp 4.3L Chevy
    Built 4L60E with manual lockout
    Atlas 4 speed
    Griffin radiator
    On board air
    Warn 9.5ti on custom bumper
    7.5" RE front and bastard pack rear on custom long arms
    30 gal gas tank
    lockers
    And a bunch of other stuff

  5. #5
    Join Date
    Mar 2013
    Location
    Portland
    Posts
    1,430

    Default Re: Crank bearing oil fees hole size?

    Did you mean 3 or 4
    They're backwards ~ 4 is on the left
    3 is the circular opening on the thrust bearing

    It's actually fully centered.

    The other (same as 5) less than 1/2 of it is open.
    With a .002, is 1/2 blocked enough?
    Be strong when you are weak.
    Be brave when you are afraid.
    Be humble when you are victorious.
    But be a badass everyday!
    . . . . . . . . . . . . . . .

  6. #6
    Join Date
    Sep 2009
    Location
    Chico, CA
    Posts
    29,847

    Default Re: Crank bearing oil fees hole size?

    If half is open, it is enough. But if you want you can carefully enlarge the hole. The fault is not in the bearing, it is in the block casting.
    230 hp 4.3L Chevy
    Built 4L60E with manual lockout
    Atlas 4 speed
    Griffin radiator
    On board air
    Warn 9.5ti on custom bumper
    7.5" RE front and bastard pack rear on custom long arms
    30 gal gas tank
    lockers
    And a bunch of other stuff

Similar Threads

  1. Replies: 5
    Last Post: 02-24-2014, 11:51 AM
  2. Shop fees
    By Mudderoy in forum General Talk
    Replies: 10
    Last Post: 04-12-2013, 12:41 AM
  3. Tire size vs wheel size
    By Adrenalinejunky in forum General Talk
    Replies: 9
    Last Post: 06-23-2011, 01:26 PM
  4. So there is a car in my favorite mud hole...
    By MjPioneer in forum General Talk
    Replies: 2
    Last Post: 06-14-2010, 01:06 PM
  5. Vendor fees limit HSP
    By Howler_GT in forum General Talk
    Replies: 14
    Last Post: 05-09-2009, 05:35 PM

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •