Shifter not shifting

63corvette · 03-17-2015, 11:01 AM

60 lbs is not enough to make the cylinder work correctly in my opinion.
My instructions that came with my unit recommended 90 lbs.
I also put 3 to 5 drops of air tool oil in the line from the solenoid to the shifter cylinder once a year to lube the cylinder seals. Your cylinder just may need a better seal to hit the shifter harder.
Another issue I had with mine when I first installed it was the cylinder throw was too short. The rubber snubber that hits the shifter to move it was adjusted just a bit to short. I lengthened it just over a quarter of an inch with the adjustment on the snubber and that cured that issue.
Hope this helps.
Rick Cates
Canyon, TX

03-17-2015, 11:01 AM	#3
63corvette Senior Member Join Date: Mar 2007 Location: Canyon, Tx Posts: 553 Likes: 128 Liked 359 Times in 103 Posts	Re: Shifter not shifting 60 lbs is not enough to make the cylinder work correctly in my opinion. My instructions that came with my unit recommended 90 lbs. I also put 3 to 5 drops of air tool oil in the line from the solenoid to the shifter cylinder once a year to lube the cylinder seals. Your cylinder just may need a better seal to hit the shifter harder. Another issue I had with mine when I first installed it was the cylinder throw was too short. The rubber snubber that hits the shifter to move it was adjusted just a bit to short. I lengthened it just over a quarter of an inch with the adjustment on the snubber and that cured that issue. Hope this helps. Rick Cates Canyon, TX