Fw: [Diy_efi] Lumpy engine in closed loop cruise

[WSCowell at aol.com]

In a message dated 23/10/2005 05:09:07 GMT Standard Time,  niche at iinet.net.au 
writes:

Nope,  side valve with pushrods, completely flat head, bowl in pistons etc.
Can  post some pics if  interested.

Rgds

Mike



Sorry Mike, 
 
Can't resist joining in, this time he's on the money, your terminology is  
incorrect.  World wide the accepted meaning of "side valve" is:
1.    Camshaft in block
2.    Valves in block directly actuated by  camshaft.
 
No-one has built engines like that since the fifties except for e.g. retro  
drag motors, referred to as (oh yes) "flathead" or "flatties".  Except  perhaps 
the old Rover straight 6, with one overhead valve and one side valve  ("F" 
head), replaced in the late 60's by the then "new" Olds/Buick 3.5 litre  V8.
 
An OHV engine has the valves in the head, actuated by pushrods from the  
camshaft in the block.  It is irrelevant whether the head has a combustion  
chamber (e.g. BMC "A" series, Ford "Kent" cross-flow) or is flat, with the  chamber 
in the piston (e.g. Ford 3.0 V6 "Essex", 1965-76 approx).  What  matters is 
the position of the valves.
 
Give us dinosaurs a break, some of you guys out there are so knowledgeable  
about modern stuff you tend to lose sight of the basics!  :-)
 
Will C
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