Posted By: 65racer
Let's talk about air shifter problems - 09/26/10 09:08 PM
Guy's I have started having air shifter problems with the car, and can't put a finger on it, it is an intermittent missed shift, sometimes it won't shift high gear, sometimes it shifts from low to high, never have been able to figure it out, I have changed the following things, shifter cylinder, shift box, adjusted shift pressure, up and down, checked the ground wires, you can sit and cycle the shifter all day long and it will never mess up.
I have used this set-up going on 3 seasons now, and have never had any problems until this year.
It cost me a race last night, and today I have changed the gate back to where I can shift it myself, I know it can't mess up that way, so if anyone has any suggestions, or have had this problem, and you cured it, please share the secrets.
Thanks Dave
Posted By: ProStDodge
Re: Let's talk about air shifter problems - 09/26/10 10:12 PM
Dave,
Double/triple check the shifter cable adjustment at the transmission. I like to set the trans in 2nd gear and be sure the cable connector slides in and out of the trans shift lever smoothly. Check it again in 1st and 3rd. Takes two poeple, one shifting, one checking, otherwise you will wear yourself out getting up and down! LOL
Check the shifter cable routing. It could be getting in a bind when the engine is torqued up at full load.
What shifter are you using?
Scott
Posted By: MOPARCHAS
Re: Let's talk about air shifter problems - 09/27/10 02:19 AM
may sound stupid but you might want to check your ignition system cap,rotor and wires could be picking up interferance from them had a problem like that before
Posted By: mopar376d
Re: Let's talk about air shifter problems - 09/27/10 03:09 AM
I had a issue like this. I ended up putting a RFI Noise Filter on the car. MSD makes them.
Knock on wood but all my shift issues went away.
Posted By: '72CudaRacer
Re: Let's talk about air shifter problems - 09/27/10 03:54 AM
Davey, do you know if the air shifter is activating and not moving the shifter or is it just not activating at all. Could be activating and not moving the shifter far enough. Is it always high gear that its missing or 2nd gear sometimes?
I'm not sure what your set up is. Mine is "Brian built", so far the only issue I've had is forgeting to turn the bottle on. I did once have a MSD RPM activated switch go bad, but it wouldn't do any thing.
Brian
Posted By: 65dragnet
Re: Let's talk about air shifter problems - 09/28/10 03:20 AM
I have the exact same setup as you 65racer and experienced the same problem. I found that the plunger on the solenoid becomes mushroomed from striking the shifter block and will sometimes cause a problem . If you need to grind it to clean it up make sure you have enough throw to move the shifter. Also I installed the noise filter as per 376d and feel it's well worth having. Also the air pressure will change with temperature , I keep mine set between 90 and 110 psi
Posted By: PLUM BAD
Re: Let's talk about air shifter problems - 09/28/10 04:16 AM
I had the same problem with mine before. It just needed oiled. Take the air line off the solenoid and put 4-5 drops of air tool oil in the line. Mine is a Deadenbear, basicly the same as a Biondo. The instructions said to occassionally oil it, so I do that at the beginning of every year.
Posted By: ProStDodge
Re: Let's talk about air shifter problems - 09/28/10 05:33 AM
What ever you do, DON'T install a B&M Pro Ratchet or PPP shifter. I have never had one of them fail against me, and I have won multiple rounds including a final at RT66 ($1200 in my pocket) from cheeta shifters not working properly. So in the interest of me being able to advance rounds. I highly recommend the Cheeta shifter to all of my opponents.
Scott
Posted By: '72CudaRacer
Re: Let's talk about air shifter problems - 09/29/10 03:17 AM
I have never used a PPP shifter, but my Pro Ratchet is bullet proof. I made my own air shifter for it. Mounted a Humpry's air cyl to the shifter handle, added a electric air valve w/ 100 psi regulator and fire it with a MSD RPM activated switch. I also use CO2, not air.
With out a doubt, this addition contributed the most to the consistancy of my car.
I built/installed this part about 1988/1989? A long time ago.
Brian Dunnigan
Posted By: 1976 Aspen
Re: Let's talk about air shifter problems - 10/06/10 12:41 AM
I talked to Turbo Action about their shifters today and they said they would start shifting from first to third after some use. They only recommend their own electronics for air shifters.
Posted By: Rodney
Re: Let's talk about air shifter problems - 10/06/10 12:48 AM
I was having some of the same issues this year
all I needed to do was adjust the 2nd gear band a little tighter.
The rpm switch trigger is the problem child 