engine mount bushings

How to keep the Cessna 170 flying and airworthy.

Moderators: GAHorn, Karl Towle, Bruce Fenstermacher

Post Reply
User avatar
170C
Posts: 3182
Joined: Tue May 06, 2003 11:59 am

engine mount bushings

Post by 170C »

My rubber bushings have cracks around the perimeter. Don't know if there are any internally or not. They crack with heat & age. Should they be replaced with 1100 hours on them? If so, what are the correct part numbers for these four bushings? Spruce hasn't been helpful thus far. I am guessing the bolts and nuts themselves should still be good. Comments?
OLE POKEY
170C
Director:
2012-2018
User avatar
GAHorn
Posts: 20967
Joined: Fri Apr 12, 2002 8:45 pm

Re: engine mount bushings

Post by GAHorn »

Frank.... which rubber bushings are you discussing? The ones on the firewall between the engine dynafocal mount..?? or the ones at the engine mount "legs" between the engine and the dynafocal...??

The latter are Teledyne Continental PN 23411 and available from Spruce: http://www.aircraftspruce.com/catalog/e ... key=126721

The former (little conical rubber types used on early 172's) are Cessna PN 0550155 and available from Yingling or AirPower. One reason some parts suppliers might be confused is because YOU have a 172 not a 170 and most did not use the rubber bushings/cones. They used metal. The 172 serial 28000 thru 47746 used them tho'.
'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. ;)
Post Reply