

| Subject: | Re: CV joints |
| From: | John Rodgers |
| Date: | Tue, 19 Feb 2008 04:31:51 -0600 |
Dennis, Good stuff to know; I always had good luck with the moly grease (mo-lyb-de-num - what a mouthful). Good high-pressure grease that works well under the pressure loads found in such devices as CV joints. Really sticks to those surfaces and protects. I use Mobil 1 synthetic oil in my Vanagon - I really like the stuff. My CV's are due for servicing again shortly. I'll look into the Mobil 1 grease. John Rodgers 88 GL Driver Dennis Haynes wrote: > FUN BUS has over 254 k on it and the CV's are all original. Boot kits done > as needed. I do not use the grease that comes in the boot kits. It tends > to dry up and turn to tar. When I did the boots at ~132k I used the Mobil > 1 synthetic grease-no moly. One of the fronts is now starting clunk during > tight turns. I also use grade 12.9 bolts that I get from McMaster-Carr. > > Dennis > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of > Scott Daniel - Shazam > Sent: Monday, February 18, 2008 8:26 PM > To: vanagon@GERRY.VANAGON.COM > Subject: Re: CV joints > > All right, then you better get 250,000 miles out of your CV joints. > > How do you keep the balls straight ? like know which groove a ball came > from. > They're not marked or color coded or anything. > > Have you measured any of the balls with a micrometer to try to find any > measurable difference. > I would think you'd be very, very into 'rotating' your CV's, that is > install > them so they drive the other way. > You'll notice in the groove they get more worn in one area from always > pushing on that one spot. > They can be fitted to the 'push' or drive the other way, to spread out the > wear more evenly over many miles, the same as tire rotation does. > > Surely you are also into this nuance of long CV joint life., mmm ? > Scott > > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of > John Rodgers > Sent: Monday, February 18, 2008 5:02 PM > To: vanagon@GERRY.VANAGON.COM > Subject: Re: CV joints > > Many have commented about NOT putting the balls back into the original > grooves. That aspect of the maintenance of the CV's is one of those GOP > things. Not a political statement, in this case GOP does not stand for > "Grand Old Party" but instead stands for "Good Operating Practice". It > is the cherry on the topping on the cake. It is that little extra thing > that makes the job better than the next guy's. > > Consider that the balls and the grooves wear together. They develop a > "wear fit". If you swap the balls around, the fit is now disturbed, and > the balls and groves have to "wear in" again. At the outset, in the new > "ball-in-groove" relationship the wear will be high until the fit has > been worn in. All of this is going to produce extra heat of friction, > and wear, making the parts more loose than in the original position. > Additionally, there will be increased vibration, which in turn will add > to the wear. Now, as a practical matter, there won't be much if any > initial apparent problem of any sort. The CV will prol'ly run many > thousands of miles with no obvious problems, but over time, the life of > the CV will be shortened. It all boils down to how much you care about > the condition of your balls. > > Regards, > > John Rodgers > 88 GL Driver who wants his balls to last forever. > > Rob wrote: > >> I'm doing CV joints, buying a tube of grease rather than the 4 >> initial bags of it was my first (and only so far) mistake. I had to >> put about 1/4 of the tube into a ziplock sandwich bag, zipped it shut >> and cut a corner off to squeeze it into the joints. >> My pitman puller worked GREAT to pull the joint off the shaft, I had >> to take the joint apart first but it works well with zero stress to >> the parts. >> Good directions in the Bentley for reassy the joint. >> >> >> >> Rob >> becida@comcast.net >> >> >> > > >
Have something to add on this topic today? Revive this thread in the forum »