Heres another post of what my problem is...

https://www.thirdgen.org/techbb2/sho...hreadid=320253

Basically, I bougt the wrong flywheel. I got a 168 tooth instead of a 153. I want to know if I can use my stock T-5 flywheel (153 tooth), and get it balanced to the same specs as my newer one (168 tooth). That way I dont have to get the whole rotating assembly re balanced. Any suggestions?

 

Are you sure that the flywheel/flexplate was balanced with the rotating assy? If so, that's not the wisest choice...most shops would reccomend you not doing it that way....so if you had to replace something, you wouldn't have to pull the engine apart to get it back to where it was.

That said, I'd be inclined to think that "a" shop could match the balance...heck, couldn't really be worse than doing tire/wheel combos, but I really don't know.


May want to recheck with the shop to see if they actually did it that way or not.

 

I know it was balanced because I took it to get it balanaced .

Ill have to talk to some other machine shops around my area to see what they say. Any machine shop gurus on here, please feel free to clue me in as to what I need to do. Thanks!

 

You have two different one-piece rear main seal type flywheels, the stock 305 part and the Summit part. What we need to know first is if your 383 is one- or two-piece rear main seal type.

In a pinch, I suppose you could get a neutrally-balanced flywheel re-done for external balance. It would probably be cheaper to send the flywheel back to Summit and get the right part.

 

I think I'm getting the impression that you have a one-piece 383 crank, internally balanced, and the shop wanted a flywheel to put on for the rotating assembly balance task. If they did anything to the flywheel during that process, they should be shot. The flywheel/flexplate/damper should not be alterted in order to achieve rotating assembly balance.

If in fact the flywheel was only used to balance the rotating assembly and it was not alterted in the process, a one-piece 153-tooth flywheel can be bolted on and no rebalance is required.

If they altered the flywheel, assemble the firing squad.

 

lol, I got a 12 GA mossberg, think thatll do?

But ya, it is a 1 piece 383. I wonder if I could send it back to summit and just get credit, or if they could exchange it. But with it already having holes drilled into it, that gets me wonderin. I guess thats another call Ill have to make.

five7, I can definitely see your point in not having the shop balance the rotating assembly to the flywheel. I didnt get a chance to call the machine shop to see what the deal was with that.

One more thing too, I noticed on the rear crank counterweight it had a balance # engraved into it after it was balanced. I wonder if the guy that does the balancing keeps record of balances, that would make it easier I think to determine what I can and cant do.

edit: I think the fact that I took it to a basic machine shop instead of a "race shop" did me in. The guy that I took it to mainly works on big diesels and such, but he still knows his ****. However, he didnt balance it. He has all that stuff sent of to "this guy". Ill have to get more info on "this guy" to see what kind of work he really does