Single Cylinder Crankshaft Oil Drilling

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coseng
coseng
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Joined: Tue Dec 10, 2019 1:29 am
Location: Jersey City, NJ

Re: Single Cylinder Crankshaft Oil Drilling

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>>180 deg in the upper main is more than enough for the rod bearing. It is not unusual to have a groove of less than 180 deg such

Thanks. A 170 degrees or so groove in the upper bearing half sounds like the way to go.
Chris
Cosentino Engineering
www.cosentinoengineering.com

coseng
coseng
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Joined: Tue Dec 10, 2019 1:29 am
Location: Jersey City, NJ

Re: Single Cylinder Crankshaft Oil Drilling

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Just to follow up, some more internet digging turned up clevite's catalog which backs up your 'less than 180 in the upper only' groove advice. It says a 140 degree groove in the upper is about optimum.

https://www.mahle-aftermarket.com/media ... -40-16.pdf

Chris
Chris
Cosentino Engineering
www.cosentinoengineering.com

User avatar
Mudflap
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Joined: Wed Feb 17, 2016 8:36 pm

Re: Single Cylinder Crankshaft Oil Drilling

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Well I did use to work for Mahle!
How much TQ does it make though?

coseng
coseng
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Joined: Tue Dec 10, 2019 1:29 am
Location: Jersey City, NJ

Re: Single Cylinder Crankshaft Oil Drilling

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>>Well I did use to work for Mahle!

Not your average forum troller!
Chris
Cosentino Engineering
www.cosentinoengineering.com