Owen Gluch

Long story short, when I had my engine done I received a 0 balance flywheel back somehow. My engine is not internally balanced so this is an obvious issue. Is there a plate or something I can use in pair with the 0 balance flywheel to achieve the correct balance? Or am I stuck having to buy a new flywheel? Thanks in advance.

oddball

Just to check - flywheel for a manual transmission, or flexplate for an automatic?

Every external flexplate I've seen has a welded-on weight.

*Some* flywheels use a bolt-on weight. Do you know the specific flywheel? I bought a cheap one just for use on the dyno that used a bolt-on weight. My engine is internally balanced, so I just took off the weight and threw it into a drawer .... somewhere. Would be funny if yours is the same one!

Did you supply a flywheel to the shop? The whole assembly has to be balanced together and while there is a "spec" it's certainly best to use the parts that were there for the balancing.

olds 307 and 403

The machine shop should have provided a balance sheet. Mine did, ask for it, it should have the weight added and the final balance weight.

BillK

Owen,
First of all, what engine is it ??

Did you supply a flywheel to the machine shop to use with the assembly when they balanced it ? You really need to find out what they did before you buy anything. Are you absolutely certain the flywheel you have is internal balance ? Are you sure they did not internally balance the engine ? Can you post a picture of it, especially the side that goes towards the engine ?

I really think you first call should be to the machine shop.