fot
[Top] [All Lists]

RE: piston weights

To: "'paul-richardson@cyberware.co.uk'" <paul-richardson@cyberware.co.uk>
Subject: RE: piston weights
From: Jack Wheeler <jwheeler@robus.com>
Date: Wed, 27 Oct 1999 07:51:18 -0500
------ =_NextPart_000_01BF2050.105F0B40

Paul, just as a point of reference, when I used stock rods in my race car, 
I would lighten the rods (and pistons, and use lighter 'gudgeon' pins).  I 
don't recall the exact figures, but I'm sure I was able to reduce the total 
weight of the reciprocating mass by about 15%.

On the other subject, I worked for Cummins Engine Co. for 21 years, and 
frequently travelled to their UK manufacturing plants (Darlington, 
Daventry, Huddersfield and Shotts, Scotland).  Many were the times that I 
was asked by a well meaning young lady at the check-in desk of a hotel, 
'What time do you want to be knocked up?'.  It took me by surprise at 
first!

My last job at Cummins was at a turbocharger plant here in Madison, IN 
(where I still live) which was part of the Holset organization.  Holset, 
headquartered in Huddersfield, is a wholly owned subsidiary of Cummins.  I 
was the controller and had 4 ladies working for me in the Finance office. 
 One day our plant manager (newly arrived from Huddersfield) came out into 
the Finance office and asked if any of the ladies had a 'rubber'.  All he 
got was red faces, until he explained that in England a rubber is what we 
would call an eraser!  Funny how the same language can have such different 
meanings.  e.g. hood vrs top, boot vrs trunk, bonnet vrs hood, spanner vrs 
wrench, etc., etc.



Hi Jack

Many thanks for taking the trouble to weigh said parts. The similar twin
cam assembly I have weighs 2030 gms - I found that quite unbelievably
heavy. My father Ken always said every aspect of the twin cams was too
heavy!! I think I'll take the assembly apart and weigh the piston and con
rod separately just for interest.

It's quite amusing how British and American words get changed or have
double meanings. I have a habit, when in the States of ringing down to
reception in hotels and asking the lady to 'knock me up' at am (meaning an
alarm call). In England to be knocked up means either to be exhausted or
awoken from sleep ( ladies will use this term quite unguardedly with no
fear of embarrassment). 'Knockers' (besides the other connotation) were
people at the turn of the century in England who went round houses near
steelworks, mines or industrial areas etc., to knock on doors to wake the
workers up. At the turn of the century in England, and for some years
after, a worker who was 20 minutes late could be jailed for one year
(statutory penalty).

The term 'gudgeon' derives from the French word 'goujon' and through
various changes became gudgeon. The derivation of the word relates to
several types of pivot points probably the earliest of which were used for
mounting church bells. The French derivation relates to the sockets on the
stern-board of boats or ships in which a pin held the rudder blade. In the
Oxford dictionary a gudgeon is described as 'any of various kinds of pivot
working a wheel or bell or the tubular part of a hinge into which the pin
fits to effect the joint.'

Best wishes

Paul



------ =_NextPart_000_01BF2050.105F0B40
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------ =_NextPart_000_01BF2050.105F0B40--


<Prev in Thread] Current Thread [Next in Thread>