In the past, when I couldn't find a bottom tap I've made my own by cutting or
grinding the tapered threads off the end of a normal tap. When doing so use
coolant to keep the tap cool.
Mike Munson
#28 EP TR6
> On Jan 8, 2014, at 11:24 AM, "Bill Tobin" <william.tobin31@verizon.net>
wrote:
>
> Marty, I may have more than one, shocking I know!
> Hang on to yours until I find out; I'll just send him one of mine.
> Thanks, Bill
> ----- Original Message ----- From: "marty" <trmarty@hotmail.com>
> To: "John Styduhar" <johnstydo@gmail.com>; "FOT" <fot@autox.team.net>
> Sent: Wednesday, January 08, 2014 9:57 AM
> Subject: Re: [Fot] Extended bottoming tap for TR4 engine
>
>
>> Hi John. I have one I made up that you are more than welcome to borrow if
you
>> would like. If so, email me your address and I can drop it in the mail.
>>
>>
>>
>> Marty
>>
>>
>>> Date: Wed, 8 Jan 2014 09:46:04 -0500
>>> From: johnstydo@gmail.com
>>> To: fot@autox.team.net
>>> Subject: [Fot] Extended bottoming tap for TR4 engine
>>>
>>> Does anyone have a tool source for a 1/2-13 extended bottoming tap to
reach
>>> the four deep head studs on the TR4 pot? Looks like at least 6" OAL.
>>> Any comments on the value of bottom-tapping blind holes to improve stud
>>> holding? Thanks
>>> _______________________________________________
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>>>
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>>
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