Windshield Wiper Motors (700 series Pinz)

mockingbird812 · Post by **mockingbird812** » Tue Feb 27, 2007 8:33 pm

I know this has to be a hot topic given the cost to replace one of these. I did a search and found some info on the gears, but is there a suitable replacement or repair shop to bring these puppies back to life?

Thanks,
Sam

Jim LaGuardia · Post by **Jim LaGuardia** » Tue Feb 27, 2007 8:42 pm

If the gear is stripped it can be repaired, Denis at Linden Engineering sells a high quality Derlin replacement gear.
It takes longer to pull the motor than to replace the gear

todds112 · Post by **todds112** » Tue Feb 27, 2007 9:02 pm

I saw an ebay listing for 2 brand new 24 volt US military surplus wiper motors. They looked fairly similar, except they had the switch on the back of the motor itself. They were very inexpensive, especially compaired to the Pinz one. Wonder if there is a way to adapt them to run the Pinz wipers?

krick3tt · Post by **krick3tt** » Wed Feb 28, 2007 8:58 am

Check this...
http://cgi.ebay.com/ebaymotors/Windscre ... 7688QQrdZ1

no connectiion, just passin' it on.

Cheers,
Morris

mockingbird812 · Post by **mockingbird812** » Wed Feb 28, 2007 9:59 am

That unimog motor looks very similar. From what i can make out, it looks like it has two connector prongs on the bottom vs. the 4 on my motor.

Has anyone had success "converting" one of these for Pinz use?

mockingbird812 · Post by **mockingbird812** » Wed Feb 28, 2007 10:02 am

Jim LaGuardia wrote:If the gear is stripped it can be repaired, Denis at Linden Engineering sells a high quality Derlin replacement gear.
It takes longer to pull the motor than to replace the gear

Hey Jim,

How do I know if it is just my gear? I had intermittent use of the wipers for a year or so. They would come on for a few minutes and then cut off. At one point I had some smoke coming from it. I guess those could have been symptoms of a failing gear as it started to disintegrate.

SAm

Jim LaGuardia · Post by **Jim LaGuardia** » Wed Feb 28, 2007 1:39 pm

Since you are in AZ, I suggest you get ahold of Tony Grant for local expertise

You may need brushes or an armature if the smoke came out

mockingbird812 · Post by **mockingbird812** » Wed Feb 28, 2007 2:11 pm

Will do Jim. Can u point me in the right direction? Username?

Thanks,
Sam

mjnims · Post by **mjnims** » Wed Feb 28, 2007 5:25 pm

Tony is part of the SWPA. His contact info is on the SWPA website. Real nice guy and can take care of your pniz needs locally. PM me and I can get you his info if you prefer.

lindenengineering · Post by **lindenengineering** » Wed Feb 28, 2007 11:42 pm

Gents
A common cause of smoke geting out of the wiper motor is not the motor but binding/seizure of the wiper spindles. It is essential to ensure everything is free and not binding before repairing or replacing the wiper motor unit.
Dennis

mockingbird812 · Post by **mockingbird812** » Tue Apr 03, 2007 10:28 pm

Update on my quest for a working wiper motor. I was buying a capacitor for a pump motor at a local electrical supply and repair shop. Well, this was probably the 4th shop that I asked (nobody would even offer to look at it), but what the heck I asked if they could repair my Austrian Wiper Motor. Ahhhh....no, but you might check out the little automotive electrical shop around the corner. Long story short this father & son team had a very can-do attitude. An hour after dropping off my motor they called with a quote and they had it done w/i 24 hours. It purrs like a kitten. I ran it (w/o hooking it up to the wiper arms) the entire way home (40 minutes), turning it on and off periodically. I realize this is not much of a load but it worked fine and did not heat up, smoke, or smell. So far I am pleased. I asked him what he did, but he had a heavy accent and I had trouble understanding. He did say that it was binding. he is very accustomed to working of foreign electirec motors and never batted and eye when I told himit was a 24v system. He charged me for $80.00. With a replacement tag of over $600.00 I am satisfied.

If anyone is interested in the same, you can ship your motor to me and I will take it to the shop for you. Or I can ask if he will do mail order? Feel free to contact directly. Shop is Ace Auto Electric and Maintenance 436 S. Stapley Drive Mesa, AZ 480.844.2812 Ask for Robert.

Thanks to all for your help.

Sam

lindenengineering · Post by **lindenengineering** » Tue Apr 03, 2007 10:47 pm

Sam
Binding up of the motor internals and/or the wiper linkage are the number one cause of motor failure on a Pinz; Including the stripping of teeth on the internal drive gear. That in short is why I remind owners to frequently check the wiper arm spindles, and sweep arc for impact against the weatherstrip.

In areas like Arizona/Colorado where rainfall is infrequent the wipers are used less often and that in its self causes deterioration that can lead to binding up when you want them to work after six months of inactivity.
Glad you found a local repair source
Dennis

mockingbird812 · Post by **mockingbird812** » Tue Apr 03, 2007 10:55 pm

Good info Dennis. Thanks,

Sam

undysworld · Post by **undysworld** » Wed Apr 04, 2007 10:11 pm

Dennis, How do you adjust the wiper travel? My driver side wiper always hits the weatherstrip on that side. (And as you may remember, my gear did go bad.) I must have missed something, because I've never figured out how to correct that. Thanks, Paul Underwood

lindenengineering · Post by **lindenengineering** » Wed Apr 04, 2007 10:46 pm

Hello Paul.
Well the actual travel is dictated by the linkage arrangement so you cannot alter that. What you can though do is alter the wiper arm sweep relative to the weatherstrip.
To achieve that you will find a lock bolt at the arm to adjust its position on the spindle. Basically operate the system and by trial and error reach a point where the linkage has reached its max travel towards the driver's side then cut the ign. You can do this by hand as well. Then position the arm on the spindle with a comfortable clearance and secure it. Operate the system and check for clearances. You may have to adjust the arm a bit on your first attempt if its a bit foreign to you.

If you have a lot of slop in the system investigate why. The plastic ball cups in the links have a habit of wearing or falling out, and those wiper through spindles can get worn as well. A common occurance is arms that have been loose on the spindles for ages. This wears a trough on the pin that defies proper tightening. The only way to secure the arm in these situations is to replace the parts.

Hey are you going to the RMP treffen this year?
Best regards
Dennis