05-10-2015, 11:21 AM
For the past three days I've been able to raise, lower and re-raise the rear with the left side only slightly following the right side -woo-hoo!
My "solution" (yet to be confirmed with more time) was to jack up the rear, inject into the end bushing areas of the torque arms Blaster brand penetrant alternating with injections of spray white grease and PTFE lubricant. I did this several times over the coarse of 3 days, each session involved using the jack to raise and lower the coach, leaving it in the raised position until the next session. Given the "success" so far I'm going to give the torque arm ends a few more treatments.
Why may this have made the difference; the air bags on my single rear axle coach are loaded to near capacity. It would not take a lot of additional resistance to raising the coach for air bags to struggle to do their job. When lowering the coach, the weight of the coach is more than enough to overcome a relatively small suspension system resistance as soon as the air bag pressure reduced.
My "solution" (yet to be confirmed with more time) was to jack up the rear, inject into the end bushing areas of the torque arms Blaster brand penetrant alternating with injections of spray white grease and PTFE lubricant. I did this several times over the coarse of 3 days, each session involved using the jack to raise and lower the coach, leaving it in the raised position until the next session. Given the "success" so far I'm going to give the torque arm ends a few more treatments.
Why may this have made the difference; the air bags on my single rear axle coach are loaded to near capacity. It would not take a lot of additional resistance to raising the coach for air bags to struggle to do their job. When lowering the coach, the weight of the coach is more than enough to overcome a relatively small suspension system resistance as soon as the air bag pressure reduced.
Jon Kabbe
1993 coach 337 with Civic towed