Date: Wed, 6 Mar 96 17:34:35 PST Subject: RE: obsolete V-Twins? From: johnw@acuson.com (John Williams) E-Man writes: >I thought that they quit making the real ones in '84? My V-twin >doesn't look very much like the new ones at all....? I thought they stopped in '47. ;^) >...just kidding.....but do you see the point? Heck no, dude! If you disassemble a EVO motor, and disassemble a Knucklehead motor, and put the two in boxes, and asked a blind man to tell you which was which... Do you see *my* point? ;^) HD BT motor topology has not changed since 1936. Where shall we start?The only things that have really changed are the materials they are made from, the head designs, and the alternator/generator location, and the types of peripherals i.e. carbs, ignitions. That's the beauty of HD! That's why we love 'em all! I can see it now, in 50 years, when were all a bunch of old gray limp-dicks, we'll be setting around in the nursing home arguing how Blockheads were the last of the true Harleys, and that the new [insert catchy name here]-head Harleys are only for Rubs/posers/ wannabes. Funny how the more things change, the more they stay the same, huh? ;^) Later, John Willie San Jose, Left Coast, USA
- V twin
- Air cooled
- 45 degree included angle
- common crank pin on two flywheels
- Siamesed connecting rods
- Highly undersquare bore/stroke
- Roller bearing crank/rods
- Single cam driven from crank pinion
- oil pump on rear driven by worm gear on crank
- pushrod actuated overhead valves
- single carburetor (well, except for the new EFI!)