Thread of Front Wheel Hub Cotter Pin Hole

[Rob & Tammy Greaves]

Does anyone know the thread of the small hole on the side of the front hubs? I am trying the replace the screw that goes in the hole ... Murphy's Law ... one of the holes is buggered up enough to not allow me to do this... I have a fairly large tap and die set, however, I do not have whatever size this is. Rob Greaves [Non-text portions of this message have been removed]

[Robert Grunau]

Rob, 1/2"-26 tpi, I have the special tap. If you don't install the TC special steel plug use an MGA type of rubber bung/seal on the inside of the hub. Otherwise water can enter the hole and may ruin a wheel bearing. Regards,m Bob Grunau Does anyone know the thread of the small hole on the side of the front hubs

[tom metcalf]

Bob, good call on the 1/2" - 26tpi hub hole. That's BSC thread - British Standard Cycle, one of two places I'm aware of where TABCs use BSC threads. The entire range of diameters is 26 tpi and to my knowledge it's the only 1/2" size that uses 26 tpi. Tough tap size to find. Tommm F2 PB TC

> Rob, > 1/2"-26 tpi, I have the special tap. If you don't install the TC special > steel plug use an MGA type of rubber bung/seal on the inside of the hub. > Otherwise water can enter the hole and may ruin a wheel bearing. > Regards,m Bob Grunau > > > Does anyone know the thread of the small hole on the side of the front

hubs

> > > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > >

[Chip Old]

On Fri, 17 May 2002, tom metcalf wrote:

> Bob, good call on the 1/2" - 26tpi hub hole. That's BSC thread - British > Standard Cycle, one of two places I'm aware of where TABCs use BSC > threads.

What's the second place?

> The entire range of diameters is 26 tpi and to my knowledge it's the > only 1/2" size that uses 26 tpi. Tough tap size to find.

A Google search should turn up a few leads. I've occasionally come accross specialist fastener vendor sites listing BSC taps aned dies, but didn't make note of them. -- Chip Old 1948 M.G. TC TC6710 XPAG7430 NEMGTR #2271 Cub Hill, Maryland 1962 Triumph TR4 CT3154LO CT3479E fold@bcpl.net

[David Lodge]

Bob, Tom, You might like to try : The Tap and Die Co. 445 West Green Road London N15 3PL (That's England, of course!) Phone: 011 44 208 888 1865 Fax: 01 44 208 888 4613 I've used them and their service isn't bad.

> Tom, I'm forwarding your answer to my question to the list for everyone's > enlightenment. > > ---------- Forwarded message ---------- > Date: Fri, 17 May 2002 08:36:37 -0400 > From: tom metcalf mgtom@bright.net> > To: Chip Old fold@bcpl.net> > Subject: Re: [mg-tabc] Thread of Front Wheel Hub Cotter Pin Hole > > Chip, > > Other BSC location, collectively, are the 4 windscreen studs, two on either > side where the wingnuts, cone washers, and long hex nuts, D-washers, etc > live. The 4 studs are 5/16" - 26tpi. I have a die to chase the threads on > these. MMM cars are BSF rather BSC - why the change? > > Tommm > F2 PB TC > >>> Bob, good call on the 1/2" - 26tpi hub hole. That's BSC thread - British >>> Standard Cycle, one of two places I'm aware of where TABCs use BSC >>> threads. >> >> What's the second place? > > -- > Chip Old 1948 M.G. TC TC6710 XPAG7430 NEMGTR #2271 > Cub Hill, Maryland 1962 Triumph TR4 CT3154LO CT3479E > fold@bcpl.net > > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > >

[David Lodge]

Tomm, Chip et al., AND if I may continue this THREAD!..............! (Ahem!) The head light mounting bolts (tubes?) are BSC 26 TPI, as are the track rod and drag link ends; these latter of course are left-hand threaded on one end. Now THERE'S a must-have die to challenge us! Believe me! Regards, David Lodge

> Tom, I'm forwarding your answer to my question to the list for everyone's > enlightenment. > > ---------- Forwarded message ---------- > Date: Fri, 17 May 2002 08:36:37 -0400 > From: tom metcalf mgtom@bright.net> > To: Chip Old fold@bcpl.net> > Subject: Re: [mg-tabc] Thread of Front Wheel Hub Cotter Pin Hole > > Chip, > > Other BSC location, collectively, are the 4 windscreen studs, two on either > side where the wingnuts, cone washers, and long hex nuts, D-washers, etc > live. The 4 studs are 5/16" - 26tpi. I have a die to chase the threads on > these. MMM cars are BSF rather BSC - why the change? > > Tommm > F2 PB TC > >>> Bob, good call on the 1/2" - 26tpi hub hole. That's BSC thread - British >>> Standard Cycle, one of two places I'm aware of where TABCs use BSC >>> threads. >> >> What's the second place? > > -- > Chip Old 1948 M.G. TC TC6710 XPAG7430 NEMGTR #2271 > Cub Hill, Maryland 1962 Triumph TR4 CT3154LO CT3479E > fold@bcpl.net > > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > >

[Robert Grunau]

Tomm, Chip et al., AND if I may continue this THREAD!..............! (Ahem!) The head light mounting bolts (tubes?) are BSC 26 TPI, as are the track rod and drag link ends; these latter of course are left-hand threaded on one end. Now THERE'S a must-have die to challenge us! Believe me! Regards, David Lodge David, Before you buy that expensive left hand die for the track rod/drag link ends, you better check the thread. I believe you will find it to be 5/8"- 20 tpi left and right thread on the TA/TB/TC ( not 26 tpi ). Regards, Bob Grunau..