We have broken 2 mirrors in the last 2 days and 4 in the last month. I think before this month we had broken 5 in 5 years and 4 of those were Pontiac Grand Ams. I have "rear return" down to 7 pounds. Cars are lined up into the road today and will be tomorrow so I'm kind of nervous. Am I missing something? Maybe the gauge is wrong?
Thx
J
Jim,
The rear return should be set at 60 PSI. This is the regulator that controls the air to hold the rear arms out. If it is set to low, the arms will not retract properly.
The pressure changed could be a couple of things, first off you always set the air pressure by increasing pressure with the regulator. You never want to set pressure by reducing pressure and bleeding off air. Reduce pressure well below the desired pressure and then slowly increase until you reach the proper pressure. Each regulator and gauge is selected by pressure range, when you are trying to set it at 7 PSI when the regulator and gauge have a 80 to 100 PSI range, it will be much harder to maintain this low pressure. When setting the lower pressures like on the trailing rear arm pressure, the gauge range is only 15 PSI, so the increments are much larger and easier to dial in.
Here are the correct pressures for a Softgloss manufactured in 2000 (most of these settings have changed very little, if at all, through the entire production run of the past 10 or so years):
Front Air-45 PSI
High Front Air-65 PSI
Rear Trail- 10 PSI
Rear air in- 45 PSI
Front return- 60 PSI
Rear return- 60 PSI
wheel Scrub- 40 PSI
Foam bath- 40-85 PSI
As far as getting enough
soap, you want a lot of lubrication with the Foambrite brushes. If you can hear the brushes "squeaking" when they contact the car, you need more lubrication. Some cheaper soaps will have plenty of suds, but still not enough lubrication for the brushes. I would also verify that your rear clutches are operating properly.
Hope this helps with your problem
