flywheels

[izzyizz]

I have a 76 briggs with cast iron flywheel an another briggs same hp with an aluminum flywheel but it has teeth on back likd a starter or something drive an the cast iron one dont could i use the aluminum flywheel instead of the steel onean is there any benefits doing this the alumimum is lighter will it allow engine to rev quicker ...:shrug:

 

[Santana]

Lighter flywheel = rev quicker BUT as far as durability it might not be the way to go since its turning faster and more likely to explode since its not billet

 

[Santana]

Correct me if I'm wrong I don't know about the briggs aluminum flywheel durability

 

[izzyizz]

Thanks santana makes sence .. Me eithier i need to find out .:hammer:

 

[jimmyl82]

Aluminum should be fine as long as its still a governed engine, and yes it will rev a little quicker due to it being lighter as long as you don't exceed the factory governed rpm.
Jimmy

 

[izzyizz]

Thanks jimmy...

 

[jimmyl82]

:thumbsup:

 

[The Restore Kid]

I am pretty damned sure Briggs never made a aluminum flywheel for the horizontal engines.. It is probably a vertical shaft flywheel.. If so they are WAY WAY light, as there's supposed to a mower blade on the motor too.. They will work but idle real rough and gotta idle them up some..

You'll never blow it up with a stock cam..

BRIGGS DID BUILD in the 50's, an (alloy) of some kind, about like aluminum, but more of a real heavy pot metal.. Those flywheels I have heard are VERY BRITTLE and ya might EXPECT it to explode.. :mellow:

But those ones require a 4 post points ignition.. If ya don't have that it'll never run anyways..