Would I be daft

[pampas]

if I fitted a chain drive to the alternator. Would like to go down the route of twin belts but it would mean machining a new drive for the 10ho sabb (Big chunk of metal and a lot of swarf) Motorcycle rear and gear box are easy to obtain and fit.Can easily make a guard out of alloy sheet. Would like the forums opinions please. Note max revs are about 1750 rpm. for the engine

 

[No Regrets]

Chain drive would be noisy, and require regular lubing, which is messy.

Belts are silent, and long lasting by comparision.

 

[ytd]

have to agree on the noise of a chain drive. Also you would a tensioner to stop the chain jumping off the cogs. What about bolting another pulley onto the front of the existing crankshaft pulley.

 

[Chris_Robb]

Why do you need twin belts? You can usually take up to a 100a/h alternator off a single belt.

 

[pampas]

Many thanks for the advice. To answer one point, the "V" in the engine is the narrow "A" section,its original use was for a dynamo and now drives an 18 acr with a smart charger,the alt. has a small diameter pulley, I am finding the belt wear is excessive,even though alingment is +or _ a Nats thingy and thought that a chain might solve the problem. Many thanks for all your input. Pampas

 

[AlanPound]

Can you use a toothed belt, or some other kind of superior type (maybe you have this already?)