Author Topic: Secondary air lid flaps interchange?  (Read 916 times)

Offline mcx

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Secondary air lid flaps interchange?
« on: January 28, 2023, 04:43:06 AM »
Can the later version secondary 1708 type  air lid doors interchange with the earlier 704/1705 versions…I have some heavily pitted early type and shiny new later type. Thanks.

Offline Cliff Ruggles

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Re: Secondary air lid flaps interchange?
« Reply #1 on: January 28, 2023, 05:18:13 AM »
The latest design airhorns used a larger pin for the secondary hanger bracket and the flaps were "notched" accordingly.  They still interchange with earlier units but you will have two small openings where they were notched for the larger pins......