Whizzer Engine Mounting

[Traveler]

I have an H series engine mounted on an old Columbia bike. The engine seems to be shifted too far to the left, because the pedal crank is hitting the belt guard. I am attaching two photos. I appreciate any advice. Thanks.

 

[rjs5700]

That is a very common problem. The best solution I have found is to heat and bend the crank on both sides enough to give plenty of clearance.

 

[KilroyCD]

Another option is to go with a shorter crank. I had to do that with one of my builds. The standard size is 6 1/2", but I needed a 5 1/2" to clear the bottom of the drive cover. I ordered mine through BikeWorldUSA.com.

 

[Zomby Builder]

Whizzer crank

You could also just buy a one piece Whizzer crank. They are wider.

 

[Quenton Guenther]

Whizzer is out of the wider one peice pedal cranks.

I have been using a slightly shorter crank [1" shorter] and installing pedal extensions which we had made for our dealers.

Have fun,

 

[Traveler]

Thanks to everyone for the advice. I will probably go with the shorter crank.

 

[Traveler]

Engine position vertically

Attached is a photo of the engine mounting on my project. The rear belt is pretty tight. Does it look like the engine is mounted too high?

 

[RdKryton]

The engine placement looks fine but you have way too much slack in the pedal chain.

Jim

 

[Traveler]

Thanks. I am aware of the slack in the chain. That is my next thing to fix.

 

[Quenton Guenther]

Hi Traveler,

Might I suggest moving the exhaust pipe forward where it is attached to the frame. The reason I mention this is to round the pipe as it leaves the exhaust manifold to remove the stress from the junction where the pipe enters the manifold. I will enclude a photo of my 1950 Schwinn Panther with the same exhaust setup. The photo will also show you have your motor mounted correctly.

Your Whizzer is looking good!

Have fun,