6-bolt crank in 8-bolt engine?
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
- GAHorn
- Posts: 21294
- Joined: Fri Apr 12, 2002 8:45 pm
To change an engine from one designation to another (such as substituting a 6 bolt crank into an O-300-A engine which originally had an 8-bolt crank), one needs to follow the TCM Service Bulletin M75-6, Rev. 1.
(See the MX Library for that document.)
As for whether a C-145 may be so converted to an O-300-C (as such a modification would be under the first scenario) one might have to consult with TCM to see if that would meet the Service Bulletin.
(See the MX Library for that document.)
As for whether a C-145 may be so converted to an O-300-C (as such a modification would be under the first scenario) one might have to consult with TCM to see if that would meet the Service Bulletin.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.

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