[Healeys] Mating a 6 cyl transmission to a BN1

[Ricchardd Mayor]

What I don’t understand is how the Smitty/Healey 5 speed conversion (bell housing) is advertised to bolt up to a 100/4, 100/6 and 3000.  But I’m now told told you need a special 100/4 engine plate to make it work.   What’s the story?
 
Richard Mayor
Portland, Oregon
boyracer466 at gmail.com





> On Feb 22, 2022, at 7:38 AM, warthodson at aol.com wrote:
> 
> Yes, but the challenge is determining determining where to drill (machine) the holes so that the transmission input shaft is correctly aligned with the pilot bushing with out pre-loading the pilot bushing. That is why the factory provided 2 special alignment bolts (dowel bolts), but they are not at the same location on the 100 engine backplate & the 6 Cyl. backplate
> Gary Hodson
> 
> -----Original Message-----
> From: Ricchardd Mayor <boyracer466 at gmail.com>
> To: warthodson at aol.com
> Cc: healeys at autox.team.net <healeys at autox.team.net>; healey.nut at gmail.com <healey.nut at gmail.com>
> Sent: Mon, Feb 21, 2022 8:54 pm
> Subject: Re: [Healeys] Mating a 6 cyl transmission to a BN1
> 
> I see that DW and AH Spares sell aluminum back plates to do the conversion.  Can’t a 6 cylinder back plate be modified to work? 
> 
> 
> Richard Mayor
> Portland, Oregon
> boyracer466 at gmail.com <mailto:boyracer466 at gmail.com>
> 
> 
> 
> 
> 
>> On Feb 21, 2022, at 2:43 PM, warthodson--- via Healeys <healeys at autox.team.net <mailto:healeys at autox.team.net>> wrote:
>> 
>> I think you will require an engine back plate that fits the 6 cyl bellhousing & is drilled to fit the 4 cyl engine. I believe Dennis Welch sells them. The thickness of the back plate will affect how much the Trans. input shaft has to be shortened. 
>> Gary Hodson
>> 
>> -----Original Message-----
>> From: Ricchardd Mayor via Healeys <healeys at autox.team.net <mailto:healeys at autox.team.net>>
>> To: Alan Seigrist <healey.nut at gmail.com <mailto:healey.nut at gmail.com>>
>> Cc: Healeys <healeys at autox.team.net <mailto:healeys at autox.team.net>>
>> Sent: Mon, Feb 21, 2022 3:28 pm
>> Subject: Re: [Healeys] Mating a 6 cyl transmission to a BN1
>> 
>> A BN2 bell housing will not give me a hydraulic clutch.
>> 
>> Richard Mayor
>> Portland, Oregon
>> boyracer466 at gmail.com <mailto:boyracer466 at gmail.com>
>> 
>> 
>> 
>> 
>> 
> 

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