Steering wheel taper?

Our technical section for all matters related to the care, maintenance and restoration of your classic boat.

Moderators: Alacrity, Rapier

Post Reply
User avatar
Site Admin
Posts: 11333
Joined: Thu Feb 05, 2009 5:16 pm
CMBA Member: 569
Location: West Glos

Steering wheel taper?

Post by Rapier »

I have this new OMC steering wheel made for the Johnson and Evinrude boats of the 60s. I has a splined metal shaft for those steering systems and is all but useless unless one has an OMC boat and unlike ride guide steering wheels it's not practical to make up and adapter.

I want to use it on standard steering systems, either the cable versions, or teleflex / ultraflex..I think they're all the same taper and remember that being 3/8, but could be wrong?? Were they reamed to that taper, or put on a lathe with sufficient clearance (the wheel is 15in diameter)? In the interm have been looking through a huge bowl of borrowed reamers for a match, without success and wondering what to do.
sample is from an old ultraflex wheel.
sample is from an old ultraflex wheel.
Fasten bra straps and remove dentures...

De Novo
Posts: 28
Joined: Tue Sep 08, 2015 3:15 pm
CMBA Member: 974

Re: Steering wheel taper?

Post by De Novo »

I had a wheel off an old Alfa or Fiat that I used on Bonbon for a while. I drilled out all the splined section leaving enough to screw through to an adaptor bought from part no. 612600. The plastic adaptor is strong enough that I just used 3 self tapping screws.It will bring the wheel closer to you though. Used it until the leather cover fell off...
They do have other useful steering parts/adaptors that seems to suggest 2 sizes of taper fittings.

Posts: 147
Joined: Sat Apr 30, 2011 8:36 pm

Re: Steering wheel taper?

Post by Diomedea »

It’s probably Morse Taper 2 (MT2), you can buy readers quite easily and they can be mounted in a vice and the wheel rotated carefully to ream out the hole to the correct diameter and depth.

Post Reply