wattac2

Just a note. I also had an erratic idle problem and went through all the vac leaks, throttle settings, etc. Finally found the distributor shaft had too much end (up/down) play. It'd actually change the timing due to the gearing and cause the engine to idle fast or slow. I rebuilt the distributor and all is fine now.

Andy

vetteguy60

Head light & wipers work fine, but if I turn wipers off on the up sing they get piched by the wiper door. Mike

pyro454

hey vetteguy, did you get the pinching thing figured out? Mine was doing that as well and I noticed a screw had been placed in the vent hose of the safety control valve (under the right wiper), once screw was removed and the valve adjusted to close more when the wipers are down, this issue did not happen to me anymore.

n15gre

Hi--I would like your vacuum diagram for the wiper door system. my cover stays down, opposite from most folks problem. email n15gre@hotmail.com

65GGvert

It's been several years, he may be gone by now.

65GGvert

Don't know exactly what you are looking for, but try these.

BLUE1972

The safety valve in the wiper tray is bad or out of adjustment. The valve prevents vacuum from going to the control valve thus preventing the door from closing on the wiper arm. When the arm pushes down on the valve, the arm is in the park position and the door is allowed to close.....

http://www.google.com/imgres?imgurl=...d=0CDwQMygYMBg

JV59

If your 1969 diagram is still available, I'd appreciate your sending me a copy.

Thank you.

JV
jvinaustin@gmail.com

toobroketoretire

"Distributor End Play Causes Timing Fluctuations" is another urban myth. As the camshaft turns the dynamic forces of the camshaft gear turning the distributor gear cause the distributor shaft to be forced UP against the thin steel thrust washer (at the bottom of the shaft). The distributor can have an 1/8" end play and still maintain perfect timing because of those dynamic forces. Removing the end play doesn't hurt anything but it also doesn't help anything.

fcb71vette

Mine go on and function. When they are turned off, the door closes on the passenger side before it fully
retracts. Gets about 2/3 of the way down then gets trapped.

Alan 71

Hi fcb,
WELCOME! First Post!
The problem you describe generally has to do with the position (adjustment) of the wiper door interlock switch. It's purpose is to insure that the right side wiper is fully down and parked before the door begins to close so the door doesn't close on and trap the wiper arm or blade as you describe.
Check it's adjustment using the 2 bolts that attach it to it's bracket in the wiper well.
The short arm attached to the wiper transmission pushes on the plunger of the interlock switch…. moving the switch 'down' makes the wiper arm need to be further closed before the plunger is fully pushed.
Good Luck!
Regards,
Alan

BLUE1972

see above

and 3 - 5 above..

fcb71vette

Thanks for the tips. What is the best way to get one unstuck when it is trapped in the wiper door? Don't want to break anything. The driver side is stuck and trapped.

Dave J

Pull the two vacuum hoses off the wiper door actuator. Then lift up on the forward and rear edges of the door in the middle of the car. Slow and steady pressure and it will come up.

fcb71vette

Thanks, I can get the door up but now the wiper wont return to the down position. I saw this happen on a friends car a while ago. i can't track him down to find out what he did. Thanks again

Iceaxe

Pull your override switch so the door is up. Turn the wipers on and than off and they should return to the down position. Close the override switch to close the wiper door.