---------------------------------------------------------- Engines-List Digest Archive --- Total Messages Posted Sat 08/20/05: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:23 PM - C-172 alternator conversion (Randy L. Thwing) ________________________________ Message 1 _____________________________________ Time: 07:23:17 PM PST US From: "Randy L. Thwing" Subject: Engines-List: C-172 alternator conversion --> Engines-List message posted by: "Randy L. Thwing" Hello All: We have a Flying Club sort of affiliated with our EAA Chapter. See www.eaa163.com click on flying club link. We have a 1958 Cessna 172. Our members want to upgrade the charging system from the stock generator to an alternator. A member has purchased and rebuilt a Cessna branded alternator that we think was originally from a Cessna 150. Our problem is that in the up-coming annual inspection, our usual "IA" will not sign off the alternator installation without some documentation that this particular alternator was used, or STC'd, or field approved on this type of aircraft. A further complication is that our airplane which came from from factory with a Continental O-300 engine, now has a C-145 (earlier version of O-300) installed in it. Our research indicates that the C-145 was never equipped with an alternator. Does anyone out there have or know of a early Cessna 172 with an alternator installed of this type. We need it to be the same part number as the alternator we have. The information from our alternator is: The nameplate says: Red Seal Continental Motor Corp Part No. 733661 15V 60A Made in USA by GPD Ford Motor Company If anyone has STC or field approval paperwork, or a 337 that mentions this same alternator installed on a early 172, we would be grateful for the help. Regards, Randy L. Thwing, Secretary, Chapter 163 Flying Club