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#1 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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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).
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#2 |
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Join Date: Sep 2008
Location: Willow Grove, PA
Posts: 299
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Re: My 89 CC Dually: Double Wide
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#3 |
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Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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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.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#4 |
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Join Date: Oct 2014
Location: Williamsburg iowa
Posts: 37
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Re: My 89 CC Dually: Double Wide
I like where you are going with this. Looks great!
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#5 |
I'm just glad to be here!
Join Date: Jan 2008
Location: Longview, TX
Posts: 4,788
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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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Karl ![]() 1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square |
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#6 | ||
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Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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Re: My 89 CC Dually: Double Wide
Quote:
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.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. Last edited by SCOTI; 10-14-2014 at 11:13 AM. |
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#7 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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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.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#8 | |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: My 89 CC Dually: Double Wide
Quote:
Boris has all kinds of air ride stuff.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#9 |
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Join Date: Apr 2003
Location: Indep, MO
Posts: 5,893
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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
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#10 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
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Re: My 89 CC Dually: Double Wide
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#11 |
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Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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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....
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#12 |
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Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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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.
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#13 |
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Join Date: Jan 2014
Location: Virginia
Posts: 77
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Re: My 89 CC Dually: Double Wide
Looking good sir.
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#14 |
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Join Date: Apr 2001
Location: DALLAS,TX
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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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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#15 |
I'm just glad to be here!
Join Date: Jan 2008
Location: Longview, TX
Posts: 4,788
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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
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Karl ![]() 1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square |
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#16 |
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Join Date: Oct 2008
Location: Brighton, TN
Posts: 1,267
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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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A computer once beat me at chess, but it was no match for me at kick boxing. Duct tape is like the force. It has a light side, a dark side, and it holds the world together. |
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#17 | |
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Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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Re: My 89 CC Dually: Double Wide
Quote:
Something like this:
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#18 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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Re: My 89 CC Dually: Double Wide
The cross sill directly above the front 4-bar mounts will be relieved as necessary for clearance.
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#19 |
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Join Date: Oct 2008
Location: Brighton, TN
Posts: 1,267
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Re: My 89 CC Dually: Double Wide
So you will have to raise the center section between the wheel wells approximatley 6.5-7 inches depending on if you want to run an cross sill or not. Wonder what it would take to run a 4 bar like this with bags and not cut the frame or bed? Just getting ideas for mine. Sorry. but thanks for the info. Its looking great.
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A computer once beat me at chess, but it was no match for me at kick boxing. Duct tape is like the force. It has a light side, a dark side, and it holds the world together. |
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#20 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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Re: My 89 CC Dually: Double Wide
Quote:
You could run a 4-bar set-up that is positioned lower F/R while being parallel for more clearance or run a set-up that's not parallel. I considered Ride Techs set-up & Porterbuilts. But, I went the direction I did based on budget goals. I don't see how you can do any moderate amount of drop w/o cutting into the frame unless it's only getting lowered for sitting still. I drive my stuff low so a c-section was a must have. Since it is a C30, I felt that there should be no compromise in frame strength & went w/step notches to allow a full height (strength) frame section. The trade off is some bed area is lost but I would prefer that compromise vs a strength related one. I have a full 4+ inches of clearance before the bumpstop touches.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#21 |
Registered User
Join Date: Oct 2008
Location: Brighton, TN
Posts: 1,267
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Re: My 89 CC Dually: Double Wide
Im just wanting mine low enough to tuck the top inch or so of the tires like the front of mine but I have no desire for it to drag frame. I do alot of pulling trailers and I wanna pull a 5th wheel camper and bigger GN trailer but like you i dont want to sacrafice frame strength by cutting it but at the same time i need to keep all the bed space I can. I was just thinking i could get rid of the leaf springs and swap to bags to get the stance i like but somehow keep my bedspace but seems like its going to be one or the other i guess.
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A computer once beat me at chess, but it was no match for me at kick boxing. Duct tape is like the force. It has a light side, a dark side, and it holds the world together. |
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#22 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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Re: My 89 CC Dually: Double Wide
Quote:
My 68 was bagged w/c-sections & had about 2" clearance w/no bumpstops. It could tow just fine because w/a load I would add extra room but for the ride height I wanted unloaded it made contact way more than I cared for. My 74 was the same but w/a home built AOL. My 90 is just leafs @ this point but it's worse than both of those were & can't carry anything w/o being on the bumpstops. All had stock floors.... This time around I'm not compromising: No c-sections that consume 2/3 of the frame rails strength while still allowing contact. No clearance issues & bumpstops installed for safety. Better ride quality unloaded.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#23 |
I'm just glad to be here!
Join Date: Jan 2008
Location: Longview, TX
Posts: 4,788
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Re: My 89 CC Dually: Double Wide
Surely by now you have gotten something done on your bed mods. How about some pictures of the progress and an update on this one...
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Karl ![]() 1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square |
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#24 |
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Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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Re: My 89 CC Dually: Double Wide
Yes & no....
Front re-pop bed panel swapped in place of the old mangled unit. Hammer & dollied the notch cover section of the floor to get it as straight as possible for welding in place. I started focusing on the tub flanges again & realized I should prob be building the flanges w/the center section permanently attached. This meant swapping the floors first & changing the order of things. It was about this time I decided to hit the easy button.... I'm cutting out the old floor between the tubs & going w/a full raised floor (less fab work). I removed the center stake pocket housings, trimmed the new floor @ the rear outer corners, & have things (spacers) mocked up. I hope to swap the new floor into place over the weekend ~ next week if I can get the necessary man-power to navigate the new floor into position. Nothing really pic worthy.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#25 | |
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Join Date: Apr 2006
Location: Miami now in Vegas
Posts: 828
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Re: My 89 CC Dually: Double Wide
Quote:
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