[Healeys] Head Re-torque

[Bob Spidell]

Thanks, Bob.

I posted this question on one of the Forums.  A member reported a 
discussion with Bruce Phillips--of Healey Surgions fame--who said he's 
tried but never found a way to torque Healey (Austin) heads without 
removing the rocker shaft, so that's that.  Apparently, the nuts next to 
the oil feed pipe are too close to the pipe to allow use of the 
'special' tool.

Bob


On 8/8/2017 2:58 AM, Bob Haskell wrote:
> Bob,
>
> 11/16" it is.
>
> Cheers,
>
> Bob Haskell
> AHCA 3000 MkI registrar
> http://www.ciahc.org/registry_3000mk1.php
>
> On 08/07/2017 09:30 PM, Bob Spidell wrote:
>> Yeah,  I used the wrong term "crow's foot."  I'm thinking something 
>> like these I've seen used by aircraft mechanics:
>>
>> http://www.aircraftspruce.com/catalog/topages/nutwrenchs1.php
>>
>> Since the wrench end and the box end are aligned I think you'd get 
>> the correct torque.
>>
>> Anyone know offhand what size Big Healey head nuts are (probably 
>> 11/16" or something goofy like that)?
>>
>>
>> On 8/7/2017 6:06 PM, Mirek Sharp wrote:
>>> Sorry, but you can't torque with a crow's-foot extension, as it acts a
>>> lever and will convey a different torque to that shown on your wrench.
>>> Theoretically, you could do the math and figure out the effect of 
>>> the lever,
>>> but it would never be as accurate.  I prefer, wherever possible, to 
>>> have the
>>> socket right on the torque wrench to minimize any effect of 
>>> extensions, etc.
>>> That said, I am being overly fussy, as for most applications, being 
>>> a few
>>> lb/ft either way won't matter, getting them even is probably more 
>>> important.
>>>
>>> Mirek
>>>
>>> -----Original Message-----
>>> From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Bob
>>> Spidell
>>> Sent: August-07-17 5:47 PM
>>> To: Healeys
>>> Subject: [Healeys] Head Re-torque
>>>
>>> Listers,
>>>
>>> Got a little over 5K miles--you'll have to do your own conversion to
>>> furlongs--on my 'new' BJ8 engine.  Got a couple ??? for the B&B:
>>>
>>> 1) is head re-torquing still considered necessary?
>>>
>>> 2) if yes to #1, does anybody have a source for the "crow's foot" 
>>> wrench
>>> extension that can loosen/tighten the head nuts w/o removing the rocker
>>> shaft (which is a bit of a PITA)?
>>>
>>> TIA,
>>>
>>> Bob
>>>
>>
>>
>