just wondering if anyone else has had trouble with a speedmaster sfi balancer. i built a 496 and used one and after about 100 miles the engine developed a rattle that sounded like a loose pully . i tore it down and when i shake the balancer it has somthing loose inside it . you cant get to it but it feels like a large piece has broken loose and is rattling inside . ? thanks

p.s. i wont buy another one.

Imho, it's best to at least buy a stock damper and I think Mike, (Wolfplace), posted pic's of a cheaper damper that came apart if you want to do a search! I wanna say CHINESE damper??

pdq67

it looks like a good balancer. it is billit with a bolt on weight for external balance. and is sfi approved. . it just rattles when you shake it. it came with a speedomotive stroker kit new. i think im just going to put on a good old gm balancer and forget it. thanks

Might call speedo and ask them first. Was this balancer ,balanced for your motor??

yes the balancer was balanced to the engine. but i noticed that nothing was done to the balancer just the crank . iv got there number and will call them tomorrow. thanks

It wasn't balanced to the engine if there's no balance mark's on it!

pdq67

the engine was balanced . but i dont see where any weight was removed from it.