After the offical check by the Technical Monitoring Association I can drive my truck on public roads. Now I have one question, the electric wiper motor http://www.classicparts.com/1947-53...sion-12-volt/productinfo/67-064/#.UHgwCoZSTJY of our sponsor, is it complicate to install him instead of the vacuum motor? The vacuum motor doesn't work really, it wipes very slow. I looked about the hose which is from the carburator to the motor, but their are not holes or cracks. So I consider to change the vacuum motor for the electric. Wolfgang
No, however depending on which they sell you , you may have to switch the t and c cables around or one has to leave. I had to change the choke around and forget having a T cable, as long as i do no have a pto on it I really do not need that cable. Again, it was simple if you take off the grille inside and are skinny, young, under 60, do not forget very often daily. Also Russ has it in his rebuild link.
I installed one in my truck as well. It went in quite smoothly, but at the time there was nothing else under the dash. I've since installed everything else, including air conditioning, and it looks like I could still get to the wiper unit fairly well. I also have to skip the throttle cable, though. I don't plan on missing it though.
Wolfgang, Another thing you might consider is to send your wiper motor to Ficken Wiper Service in West Babylon, New York and have it rebuilt---about $100. When it gets back get a vacuum pump out of an 78-86 (or so) Mercedes Diesel and mount it anywhere. What I like about this set up is where an electric has one or two speeds the vacuum has any speed you need for any weather condition and it NEVER stops since it no longer depends on the engine for vacuum. Nate can tell you the Mercedes Model numbers that had them. Around here they charge $10-$20 at a Pic-A-Part salvage yard for the pump.
If I can do it... It wasn't any worse than anything else that requires getting up under the dash to do. Taking out the remains of my heater duct work helped. The worst thing for me was being able to see clearly. (I'm getting old~ eyesight's going. They always said it would, but I thought that meant when I was a teenager... I digress...) I love my new 12 volt/2 speed wipers! Of course I'll need to hook up a window washing system later to complete the safety aspect. I have a good vacuum motor available for those who would rather stay "stock".
Once Again......... Evan has the correct best info ~ Mercedes S-Klasse W-126 1981 ~ 1997 had a nifty electric vacuum pump in the right rear of the spare tire well , it's under a black plastic cover and is encased in foam so it's silent running.... Newer models (ick) have this pump under the right rear passenger seat cusion .
Vacum pump Thanks for your answers. the hint with the mecedes vacum pump is good, I'll go to the scrapyard and have a look about it. Wolfgang
Any Luck Yet ? You're welcome . By now you prolly realize I'm Junkyard Junkie as well as a Journeyman Mechanic , this means my Tech Advice is *very* suspect . Always run it by others before using it . .
