BSA Owners' Club Workshop Discussions

The BSA Workshop => Twins => Topic started by: royblackburn1@btinternet. on 24 May, 2020, 10:45

Title: carb mounting studs
Post by: royblackburn1@btinternet. on 24 May, 2020, 10:45
Hi all, advice wanted for what size studs and threads I require to mount 932 concentric carbs to a 1966 A65L head also what thickness for the heat resistance tufnal gasket, thanks Roy  ???
Title: Re: carb mounting studs
Post by: Bess on 24 May, 2020, 11:10
Hi,
    The original studs 5/16"-22 bsf, 26 cei, 1-3/8" long, nut cei.

The specified insulator was formally 1/8" thick CAF, superseded in the gasket set with similar asbestos free type, which can be replaced with a 5mm tufnal (you may need to fit slightly longer studs).

Best wishes...
Title: Re: carb mounting studs
Post by: royblackburn1@btinternet. on 24 May, 2020, 18:39
Thanks once again Bess