Re: My 89 CC Dually: Double Wide
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Re: My 89 CC Dually: Double Wide
looking good!
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Re: My 89 CC Dually: Double Wide
New lower shafts arrived today & were dropped off @ my neighbors business to get the dowel hole relocated .750" back.
The new sway bar shows it will arrive tomorrow so the OE unit was plucked tonight..... |
Re: My 89 CC Dually: Double Wide
Looks like good progress is being made on this one. Hope to see it soon.
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Re: My 89 CC Dually: Double Wide
4 Attachment(s)
I didn't get the shafts back yesterday so I worked on getting the arms drilled for lower bag hardware & played around w/shock relocation possibilities. New sway bar is BIG (the 2nd pic of the bushing is the new bushing on the old HD 1.25" bar)....
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Re: My 89 CC Dually: Double Wide
Just found this thread! I love your truck man! Keep up the good work!
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Re: My 89 CC Dually: Double Wide
Scoti,
Hmm this looks very familiar! Keep up the good work bro! |
Re: My 89 CC Dually: Double Wide
One step forward..... 3 steps back.
A-arm mock up & measurements were done using the larger C30 spec'd dbl convoluted Firestone bags. Once everything was tacked together I test fit one of the bags w/50psi of air to verify clearances. With the arms almost done now, I assembled the pass side so I could set it down on its full weight to allow disassembly of the drivers side. When I did this, I noticed my margin of clearance was reduced more than I cared for. I could not wedge a yard stick between the bag & F/R 'pocket' edges on the a-arm. It doesn't touch; but it's also just sitting still.... So I looked up alternative bag choices & decided to change directions. A call to AZ Perf was made & I now have a set of Porterbuilts lower arms on order. Nice thing about these is I get the caster benefit, bag clearance, & they already have the sway bar bracket that I'll need so that means fab work on the front should be done. At least the a-arm mod put the bag & ride heights right where I was expecting (~6" @ 100psi). I'll prob go ahead & finish them out & use them on a 1/2 ton since the smaller diameter 7" bags would clear w/o issue. Now I'm working on air leaks. It seems my compressor feeding the tank for the rear bags is leaking down. Tank is good (submerged/leak tested @ 50psi) but when connected to the compressor only, it will bleed down over night (enough to kick the comp on). |
Re: My 89 CC Dually: Double Wide
:haha::haha:Custom wiring hazards !! :haha: Nice build !!
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Re: My 89 CC Dually: Double Wide
This air system is pissin me off. I removed the fittings @ the compressors for re-sealing. I removed the teflon tape & sealed them w/Loctite thread sealant. Same results..... the tanks will bleed down enough to require kicking the comps on after sitting overnight. I guess I'll cut new airlines to eliminate them from the list.
Not sure what it can be other than possibly the drain valves for each tank (they passed the leak test though). The bags are holding fine so the lines from the valves to the gauges are ok (all leak tested as well prior to installation). Oh well.... if it was easy, everyone would have custom stuff. |
Re: My 89 CC Dually: Double Wide
I like where you are going with this. Looks great!
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Re: My 89 CC Dually: Double Wide
Scoti - do you have a check valve in the line between the compressor and the tank?
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Re: My 89 CC Dually: Double Wide
Scoti- check here- havin similar trouble about halfway down the page, may help.
http://67-72chevytrucks.com/vboard/s...563833&page=52 |
Re: My 89 CC Dually: Double Wide
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That being said, the set-up used in my 68 was done (plumbed) the same way. It could go weeks (months) before the comp cycled & used a Thomas comprssor as well. Quote:
Currently (for isolation purposes) the 'supply' lines from the tanks to the paddle switches are not connected to the tanks. My bags are aired up & holding so from the paddle valve forward there does not appear to be a problem. The 'leak' or where the bleed down is occurring is between the tanks & comp's. The comp's are plumbed to feed the tanks & I have inline PTC plugs in the discharge ports of the tanks (again, just for isolation purposes while investigating the leak). I might try the check valve approach suggested by Karl. |
Re: My 89 CC Dually: Double Wide
So I did some looking @ lunch..... Where is a good source for a check valve?
My comp's have an 1/8"npt female outlet; tank ports are 1/4"npt female; & using 1/4" DOT airline. |
Re: My 89 CC Dually: Double Wide
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Boris has all kinds of air ride stuff. |
Re: My 89 CC Dually: Double Wide
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Re: My 89 CC Dually: Double Wide
I found some @ a local bolt, fastener, & fitting place. I pulled the supply lines to each tank. The 'front' tank had very little remaining pressure; the rear had alot more.
I re-plumbed the comps w/the check valves inline. I checked on them @ a 3hr dwell time & the comps didn't come on. The pattern has been the 6-12hr mark so I'll follow-up tomorrow am. The feedback has been appreciated.... |
Re: My 89 CC Dually: Double Wide
As of 12hrs, the comps didn't come on when powered up. That's a good sign.
We'll see how things are after work tonight. |
Re: My 89 CC Dually: Double Wide
Looking good sir.
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Re: My 89 CC Dually: Double Wide
48hrs & comps still not kicking on. Looks like the check valves solved the issue. Now I'll do some shop cleaning/rearranging & get back on the bed fabrication while waiting on my PB lower arms.
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Re: My 89 CC Dually: Double Wide
Good to hear it was a simple fix. Sometimes the compressor is the source of the leak since they are designed to compress the air and not hold the air, hence the need for a check valve.
Ever notice when your shop compressor finishes pumping up the tank that there is a little relief of air that it makes as it stops turning? That is the pressure bleeding the read valve in the compressor so that there is not a high head pressure on the next start up. Karl |
Re: My 89 CC Dually: Double Wide
Looking good. How much are you going to have to cut out of the bed floor with that 4 link setup? When you get to that point pics would be awesome.
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Re: My 89 CC Dually: Double Wide
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Something like this: |
Re: My 89 CC Dually: Double Wide
The cross sill directly above the front 4-bar mounts will be relieved as necessary for clearance.
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