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Quadrant rivets
Posted: Sat Aug 01, 2020 6:10 pm
by blgitn
I'm replacing the spark and gas levers:
I've filed the heads off the bottom side of the quadrant rivets but can't seem to knock them out. Is there a secret to doing this?
Thanks in advance.
R/ Roger.
Re: Quadrant rivets
Posted: Sat Aug 01, 2020 7:29 pm
by RajoRacer
Most likely a bigger hammer and a real good steel drift - I've always taken the tops off - easier to pound down !
Re: Quadrant rivets
Posted: Sat Aug 01, 2020 7:54 pm
by DanTreace
Grind the underside rivet flush, then you can see the circle of the rivet shank.
Center punch the center. Sometimes a twist drill is needed to drill down about 1/4" or so.
Then punch out with drift that will fit into your drilled pilot hole. Lots of times they loosen up with just the center punch.
Of course having the column locked tight in a vise gives solid fixture to apply the hammer, no lost of energy.
Re: Quadrant rivets
Posted: Sat Aug 01, 2020 8:18 pm
by RajoRacer
You are assuming his column is out of the car !
Re: Quadrant rivets
Posted: Sat Aug 01, 2020 8:46 pm
by DanTreace
Steve, in that case, shore up the column with a 2x4 to the floorboards

Re: Quadrant rivets
Posted: Sat Aug 01, 2020 9:08 pm
by 2nighthawks
Hmmm,...either you guys missed something or I did. Roger distinctly said the "QUADRANT" rivets!

Re: Quadrant rivets
Posted: Sat Aug 01, 2020 9:11 pm
by 2nighthawks
......but then he also mentioned the spark and gas levers. Maybe he just used the wrong terminology, huh?

Re: Quadrant rivets
Posted: Sat Aug 01, 2020 9:17 pm
by 2nighthawks
Well,....I guess it's me that's confused, as I was just reading something about the quadrant that's riveted to the frame for the emergency brake lever pawl to engage,......sorry,.....harold

Re: Quadrant rivets
Posted: Sun Aug 02, 2020 3:11 am
by Allan
I'd not like to be changing out control levers with the steering column still in the car! Might be do-able in an open car with the top down, but re-riveting the steering case and the little levers on the control rods would be a real task, even if you could get them off while still in the car.
Allan from down under.
Re: Quadrant rivets
Posted: Sun Aug 02, 2020 10:44 am
by Original Smith
When I did my '25, I wanted the exact appearance of the original rivets, so I drove the rivets out from the bottom, and had two turned down to the original size. As I recall, I had to bend each rivet slightly to get it to go through the bottom hole.
Re: Quadrant rivets
Posted: Mon Aug 03, 2020 3:59 pm
by blgitn
The column is out of the car.
The heads are ground off the bottoms of the rivits.
I'll try drilling down a little bit.
What's the correct terminology for the notched semi-circle under the steering wheel that controls the motion of the spark and gas levers?
R/ Roger.
Re: Quadrant rivets
Posted: Mon Aug 03, 2020 4:39 pm
by Susanne
That's the "Quadrant" people refer to...