[Kainam]

Heres something to stretch out the ole brain cells.

See how many of these motors you can name.

 

[Nathang]

nine
well, nine's a stretch, I'm kinda vague on the last two

 

[MrMarty51]

10
The one with the vent hanging down in front of it I did`nt identify but I think it might be a 74 or 80 inch flathead and the little one on the left side of the bottom shelf.it is to big and not the right shape for a 125 or 165 lightweight engine.

 

[gtrman66]

That is a very cool collection!!!!

 

[EZE RIDER]

That is a cool collection. I,m only good for about 8 but I think the lower left motor is the Hummer motor? Similar to the one in my avatar.

 

[gtrman66]

Top Row - ? - ? - Knucklehead - Panhead
2nd Row - SHovelhead - Evo - Twin Cam - Revo
3rd Row - ? - Early XL - Ironhead - Modern Sportster

How did I do? THat's without looking anything up. Do I win the ones I guessed?

 

[Kainam]

3rd Row - ? - Early XL -
How did I do? THat's without looking anything up. Do I win the ones I guessed?

Close, it pre-dates the XL.

 

[Kainam]

That is a cool collection. I,m only good for about 8 but I think the lower left motor is the Hummer motor? Similar to the one in my avatar.

Older than that.

 

[MrMarty51]

Older than that.

55 K model

 

[Kainam]

55 K model

Yup, K model for the second motor on the bottom row.

Hint for the first motor on the top row. It was unique in that it had an exposed overhead valve intake rocker assembly, and a side valve exhaust.

 

[MrMarty51]

I think the side valve engine had both rockers exposed.Is that right?

 

[EZE RIDER]

I was looking at the tiny one cylinder but it looks different than this one.

 

[Kainam]

I think the side valve engine had both rockers exposed.Is that right?

Due to the way that the valves are situated in sidevalve motors, rockers are not needed.
You are probably thinking of the early OHV motors.

 

[Kainam]

I was looking at the tiny one cylinder but it looks different than this one.

Hint: Think of the board track racing era.

 

[MrMarty51]

Due to the way that the valves are situated in sidevalve motors, rockers are not needed.
You are probably thinking of the early OHV motors.

YUP!

 

[Kainam]

Top left: F head motor

 

[Kainam]

Bottom Left: B model

 

[Kainam]

Second one on the top row was an early model flathead from 1930 - 1936 before the cases were changed to resemble what would later be used on the knuckleheads and panheads.

 

[EZE RIDER]

Ah, OK. Now I have to try and put that info in my skull. Cool thread.

 

[Kainam]

You've probably heard about "The Silent Grey Fellow" or the Harley JD, these were F heads.
Now you can tie these tidbits of information together.


You can hear what the F head sounds like here:
http://www.youtube.com/watch?v=_A3FNGYMQ1c&feature=channel

The author, wheelsthroughtime, has TONS of cool videos about motorcycles of that era.