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Author Topic: Main Bearing Shells  (Read 2961 times)

Offline PennoK3

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Main Bearing Shells
« on: March 17, 2017, 04:27:24 PM »
I have a 550 K3 engine for rebuild.   I have all the original shells, one crankcase half has them in place the others are loose. They all look in good shape but there doesn't appear to be any code on the cases.   Any tips for sorting this out please?
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Offline Bryanj

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Re: Main Bearing Shells
« Reply #1 on: March 17, 2017, 11:03:37 PM »
you are stuffed mate unless you can determine the colour codes on the sides
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Offline PennoK3

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Re: Main Bearing Shells
« Reply #2 on: March 18, 2017, 08:43:55 AM »
Many thanks guys
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Offline PennoK3

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Re: Main Bearing Shells
« Reply #3 on: April 18, 2017, 08:19:45 PM »
You look at things for ages and just can't see!!!  On the rear of the crankcase in big letters is crudely stamped C C B F B, could this be the shell code? but not sure the relevance of the F?
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Offline PennoK3

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Re: Main Bearing Shells
« Reply #4 on: April 19, 2017, 06:41:14 PM »
Looking at it again it almost looks like a P so I'm thinking it could be a badly done B.   I've measured the thickness of the shells with a Micrometer and they are 1.53, 1.52, 1.54, 1.59. 1.61.

« Last Edit: April 19, 2017, 06:43:15 PM by PennoK3 »
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Offline mike the bike

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Re: Main Bearing Shells
« Reply #5 on: April 19, 2017, 07:57:37 PM »
I've got half a B stamped on mine.  Sounds like a Monty Python song  ;D
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Where's that 10mm socket got to?
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