[Healeys] 100 Road draft (vent) pipe fasteners

[Bob Spidell]

What does ‘HSS’ stand for?


> On Feb 9, 2022, at 10:15 AM, gradea1 at charter.net wrote:
> 
> Just had a 100 engine to repair the oil feed pipe fitting on the rocker shaft 3rd block, and everyone might note that the thread for the special bolt is 3/8" x 26 HSS. Helicoils are available for those who have "buggered" the fitting. Be careful when replacing this item on rebuild. Keep both ends loose until successfully threaded.  The alloy rocker blocks are not easy to come by. Hank, healeyhelper.
> 
> -----------------------------------------
> 
> From: "Curtis Arndt" 
> To: "Bob Spidell"
> Cc: "Healeys"
> Sent: Tuesday February 8 2022 11:28:21PM
> Subject: Re: [Healeys] 100 Road draft (vent) pipe fasteners
> 
> Bob,
> 
> If it's on the engine it's Whirworth, 1/4" BSF to be specific in the question you asked for #74.
> 
> Cheers,
> 
> Curt.
> 
> On Tue, Feb 8, 2022 at 3:58 PM Bob Spidell <bspidell at comcast.net> wrote:
>> Anyone know off-hand what type of fasteners are used, Whitworth, or ?
>> 
>> Items# 72 & 76 in the Moss catalog page:
>> https://mossmotors.com/external-engine-100-4
>> 
>> TIA,
>> Bob
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