Community Forums

Saber77 · 07-21-2009, 10:16 AM

I have a 2007 Safari Simba DP (same as a Cayman or Neptune). The driver's side windshield wiper arm is slipping on the shaft. I torqued the bolt down very tight, but it still slipped when the wipers were on high. I installed a new wiper arm from Diesel Equipment, but it just seems that there's nothing to prevent it from slipping again, that is, there are no splines in the wiper arm to mesh with the splines on the shaft and the only way to try to keep it from slipping is to torque the bolt. I tried to use a lock washer, but it made the connection too thick and there's not enough room to get the bolt fully seated on the shaft, so I just used a regular washer. It works now, but I fear it will slip ehen I encounter heavy rain.

Has anyone had a similar problem or know of a solution? Thanks.

Jack R · 07-21-2009, 10:33 AM

sabre77

I would think you can get a replacement arm with splines. Try NAPA, or another auto parts store.

Dutch Star Don · 07-21-2009, 11:04 AM

Saber77....Was the shaft originally splined and wore smooth or is it coned shaped and the wiper is a friction fit? if it's a friction fit, you could try placing a couple of pieces of soldering wire on the shaft and then fit the wiper over it and tighten. This may be enough to make it tight without destroying the shaft.

Saber77 · 07-21-2009, 01:50 PM

It's a cone-shaped shaft and a friction fit (bad engineering!). The natural movement of the wiper arm serves to loosen the nut on the shaft. Thanks.

H. Miller · 07-21-2009, 05:55 PM

Where was that post regarding J-B Weld

D Barber · 07-21-2009, 09:07 PM

Hi,
Should be a washer with friction grip features under the nut. Then tourqe nut to 20 ft lbs.
Don

PS should be part of regular checks to maintain MoHo

jethro · 07-26-2009, 10:41 PM

those wiper shafts are junk!!!!!!!! Try using a drop of lock tite thread locker on the tapered part of the shaft. good luck.

john50799 · 07-31-2009, 01:39 AM

Saber77,
I had the same problem with my 2006 Camelot. I removed the arm and found the spline stripped. I bought some good epoxy putty (the kind where you mix two parts of the putty together) and packed the spline shaft with it. I then tighten it down as tight as I could. Haven't had a problem since.

Saber77 · 07-31-2009, 10:49 AM

Thanks for all the help -- I managed to talk to a Monaco tech rep and they advised to try using lock tight. The arm is held on by friction only and the shaft splines are supposed to cut into the wiper arm to hold it on...............

krf9113 · 06-29-2011, 06:46 PM

Saber 77, if you're still out there. Have you had any additional issues with the wiper? I have a 2008 and had the same problem. Just wondering how the fix was holding up.

Saber77 · 06-29-2011, 06:52 PM

I didn't have any more problems with it, although I traded the Simba for a Newmar 2 years ago -- huge difference in coach quality.

krf9113 · 06-29-2011, 07:18 PM

Yes, I would agree you purchased a quality rig. I would modify my decision. I've spent a ton of bucks correcting Safari's and Workhorses product. Just have to convince my wife.