[Healeys] Piston design

[Alan Seigrist]

Maybe a make work directive from the british bolt fitters union?  I
think that union still exists in the UK, right?

On 1/26/10, Richard Ewald <richard.ewald at gmail.com> wrote:
>> I developed a theory about nuts, bolts and British machinery.  My theory
>> is
>> based on the following facts:
>>
> Borg Warner 35 transmission installed in a Volvo:  6 bolts around the bell
> housing. Two of which if memory serves had nuts on them.
> Borg Warner 35 transmission installed in an XJ 6: 18, count em 18 bolts
> around the bell housing. The bottom three bolts on each side had nuts,
> washers and lock washers on them.
> My Theory?
> All British engine designers have a brother in the nut and bolt business.
> The Merlin with over 400 unique fasteners would seem to support this.
> :-)
> Rick
>
>>
>>
>>
>> The Merlin was built under license by Packard for P-51s. Packard reduced
>> the original 400+ variations of nuts, bolts and screws to a few dozen
>> standard sizes.
>>
>>
>>
>> bs
>>
>>
>> --------------------------------
>> Bob Spidell - San Jose, CA
>>
>>
>>
>> Wow! Is that what present day owners have to do? It would make owning a
>> Spitfire or Mustang (same engine) VERY expensive. As if just buying one
>> was
>> not expensive enough!
>> Mike MacLean
>> 60 Sprite
>> 56 BN2
>>
>> On Mon, Jan 25, 2010 at 6:09 AM, Guy R Day <grday at btinternet.com> wrote:
>>
>> > Interesting little snippet from Federal Mogul that they have found that
>> > re-melting cast alloy piston centres (DuraBowl technology) reduces the
>> grain
>> > size of the alloy and silicon particles resulting in a cost effective
>> > stronger and more thermally resistant piston. The immediate future is
>> > for
>> > diesel engines but - who knows?
>> > Another snippet for those who care - the Merlin engine (Spitfire) was
>> > removed, serviced and rebuild every 40 hrs under normal service and
>> > EVERY
>> > time full throttle was used, no matter how long for. Full throttle use
>> was
>> > available for shortly over a 30 second burst and snapped a wire strung
>> > across the throttle quadrant to show the ground crew it had been used.
>> Water
>> > injection was not used for decokes!!
>> >
>> > Guy R Day
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-- 
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Alan

'52 A90
'53 BN1
'59 Jag Mk IX
'64 BJ8