Re: [Healeys] 100 Road draft (vent) pipe fasteners

[Bob Haskell via Healeys <healeys@autox.team.net>]

Bob,

HSS - high speed steel.
I think the threads are 3/8"-26 BSF (British Standard Fine).

Cheers,

Bob Haskell
Austin Healey 3000 BN7/BT7 registrar

On 2/9/22 1:25 PM, Bob Spidell wrote:
> What does â??HSSâ?? stand for?
>
>
>> On Feb 9, 2022, at 10:15 AM, gradea1@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@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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>
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