Humpback Mods

[8270king]

I use the AMF turnbuckle kit to keep enough pressure to not allow spinning balls.

Also I add a kicker spring and chain to the paddle idler to eliminate belt slippage when using the spring shock.

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[Jimmy Jam]

Re: Humpback Mods

Kings tricked-out 70's. [img]/content/btubb/images/%%GRAEMLIN_URL%%/laugh.gif[/img]

[8270king]

Re: Humpback Mods

JJ...dont make me pull out all the stops. :p

Jerry

[poplarpetey]

Re: Humpback Mods

How many problems did you have with spinning balls? I thought the Humpbacks were supposed to eliminate that problem. Just curious.

Pete

[8270king]

Re: Humpback Mods

I had some spinning balls prior to installing the Stahl's covers.

The turnbuckle and AMF brace allows you to put enough pressure to bring ANY ball back.

Jerry

[WHERE IS THE SHOT]

Re: Humpback Mods

Jerry try using a Brunswick 2 piece turret spring instead of the turn buckle,works great on Humpbacks and P.B.L.S

[8270king]

Re: Humpback Mods

Shot,

There is a spring between the turnbuckle and the ball lift.....

Jerry

Thanks anyway!

[BigDawg]

Re: Humpback Mods

We are switching from kicker to humpbacks and we found if u install the lower section of rocket rails the ones u shave off till u see white spots
fixes that spinning problem make sure u have the textured lift assembly and all the spinning problems will go away

[Mas8230]

Re: Humpback Mods

I've had no ball spinning problems at all. I have 4 pairs of humpbacks in a 14 lane center, and a 5th coming. 2 pairs have been in for two full seasons now. We oil heavy, but we do clean belts on at least an every other day basis. I have original rail covers also.

[Coors]

Re: Humpback Mods

my "kicker springs" are connected to the lower ball lift yoke weld. for the same purpose