Interpreting plasticgauge on main bearing

Posted by don in nh [96.61.72.163] on Saturday, November 23, 2013 at 18:06:32 :

Hi all,

I just finished plastigauging my 3rd from the front main bearing 4 times at three different angles on of the crank shaft. I got: 0.0015- (yeah!), 0.0020-, and .003-, .003-. (I did the last spot twice to make sure I was consistent).

So anyway, can this mean anything other then out-of-round?

I was originally went into this thinking I would shim (I get low oil pressure when it gets warmed up), but can I shim an out-of-round?

Anything else it could be?

As always, thanks,

don.

• Playing around.

Follow Ups:

• Re: Interpreting plasticgauge on main bearing - Sherman in Idaho 20:39:27 11/23/2013
• Re: Interpreting plasticgauge on main bearing - Vaughn 20:35:30 11/23/2013
  • Penny thing backwards? - Chriscase 20:47:13 11/23/2013
    • Re: Penny thing backwards? - Vaughn 11:21:50 11/24/2013
• You are stil within spec. Check the rod throws? - Chriscase 19:50:15 11/23/2013
  • Re: max tolerances - when to shim? - don in nh 07:51:45 11/24/2013
    • 1 1/2 - 3 1/2 was always my rule of thumb. - Chriscase 08:06:07 11/24/2013
      • Re: Thanks. - don in nh 08:32:02 11/24/2013

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