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Topic: HWH Six Pack Manifold Corrosion Repair (Read 1873 times) previous topic - next topic

Re: HWH Six Pack Manifold Corrosion Repair

Reply #25
After reading this thread and the fact that this year my left rear if not fully inflated would self inflate and slowly rise when parked with the leveling system off.  My normal procedure after parking is to level the coach and turn off the leveling as in auto sometimes the coach would relevel from us walking around in the coach.  But recently due to the L rear problem, I have had to leave it in auto.  Decided to order 2 six pack solenoid overhaul kits from Tom McCloud.  After I removed the 6 packs to do that, found that the front had some corrosion that might be causing an air leak.  After some PM's with Greg, I decided to just order a complete new front 6 pack through FT parts.  They didn't have one in stock, so had HWH ship me one direct.  When it arrived it also had some corrosion on the nipple side that was not near any of the air line connections.  This was a bit disappointing to get a new 6 pack ($781) that already had some corrosion.  Called FT parts and sent some pictures.  HWH shipped me a second 6 pack along with a return label for the 1st one. Took about a week each time to get the 6 packs.  Everything is back together and working fine now,  The coach has remained level for a week now with the rear tank holding at 90 psi, so no leaks there.  The front still has a slow leak though even with a new 6 pack.  I have not been able to find it, but it takes about 24 hrs to leak down to 30 psi. 

HWH has made some changes since my coach was built.  The new 6 pack has different solenoid coils that are now encased in plastic.  Spacing is slightly different for the lower solenoids.  It also has 2 T handles on the sides that allow the travel solenoids to be bypassed.  I understand this is mainly to be used during coach manufacturing. but can be used to place the coach in travel manually. The new 6 pack did not have the pressure switches, but did have the wiring. Although my coils had a lot of loose rust in most of them from the steel cover, they still worked.  I cleaned out the rust and painted the covers.  Also found a new washers at Fastenal that were slightly smaller OD, but work.  $20 for 10, part # 11103744.  There is a thick washer between the coil and the solenoid base and some were rusted beyond cleaning up.    Tom McCloud was very nice in letting me return the unused kit, less shipping and handling.  I sent Greg my old manifold, in case he might be able to use it as an aid in making new ones.  I now have some spare parts and coils.  Edit: The 1st new 6 pack did not have the label.
Jerry Whiteaker former owner 96 U270  36' #4831 Austin,TX-Owner Mods LCD TV w/front cabinet rebuild - LCD TV bedroom - Dual Central AC, either can cool coach w 30 amp - Skylights at roof AC openings - Drop ceiling for ducting of AC - Shower skylight white gelcoat/wood/epoxy frame - Air Springs/Shocks replaced - 2014 CRV - 8K Home Solar - Chevy Volt

Re: HWH Six Pack Manifold Corrosion Repair

Reply #26
Jerry,

If used in front, where do the two pressure switches screw in?  Did you remove the brass plugs labeled "BAG PSW" and put the switches there?
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: HWH Six Pack Manifold Corrosion Repair

Reply #27
Greg, if not to late to get on the list I'd buy 2. Thank you
Bill and Marsha Kuykendall
1999 Foretravel U320 36' CAI
Build Number 5446
2006 Lexus GX 470

Re: HWH Six Pack Manifold Corrosion Repair

Reply #28
Jerry,

If used in front, where do the two pressure switches screw in?  Did you remove the brass plugs labeled "BAG PSW" and put the switches there?
Yes that is what I did.  There may be a difference between the front and back manifolds as the back one has one pressure switch at the bottom, but I can not remember if it screwed into the manifold or the tee.  Short memory with old age.  I think it was the manifold, but would have to go look to be sure.  The 6 pack I received did have a part number label that said "Manifold Air Front"  I didn't remove anything but the solenoids on the rear 6 pack.
Jerry Whiteaker former owner 96 U270  36' #4831 Austin,TX-Owner Mods LCD TV w/front cabinet rebuild - LCD TV bedroom - Dual Central AC, either can cool coach w 30 amp - Skylights at roof AC openings - Drop ceiling for ducting of AC - Shower skylight white gelcoat/wood/epoxy frame - Air Springs/Shocks replaced - 2014 CRV - 8K Home Solar - Chevy Volt

Re: HWH Six Pack Manifold Corrosion Repair

Reply #29
Good pictures and write up,Jerry,was the $781 for the six pack with the coils or just the manifold?
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: HWH Six Pack Manifold Corrosion Repair

Reply #30
Good pictures and write up,Jerry,was the $781 for the six pack with the coils or just the manifold?
Manifold, solenoids, coils, air line nipples and wiring for the pressure switches.  I reused the old pressure switches and fittings for them.  Also my air lines were just long enough to reach, so I could not cut off the old collars and install new. 
Jerry Whiteaker former owner 96 U270  36' #4831 Austin,TX-Owner Mods LCD TV w/front cabinet rebuild - LCD TV bedroom - Dual Central AC, either can cool coach w 30 amp - Skylights at roof AC openings - Drop ceiling for ducting of AC - Shower skylight white gelcoat/wood/epoxy frame - Air Springs/Shocks replaced - 2014 CRV - 8K Home Solar - Chevy Volt

Re: HWH Six Pack Manifold Corrosion Repair

Reply #31
Just to satisfy my curiosity about whether there is a difference between the front and rear 6 packs, I went to the coach and took some pictures.  It seems (not positive) that there is no difference in the manifold, but there is a minor difference in the wiring and the switches, so you would have to specify front or rear when ordering.  If the rear comes with a switch, it will probably cost more.  The switch on the rear is screwed into a tee on the inlet.  There is also another tee on the inlet that sends air to something, not sure what, maybe retarder, etc.
Jerry Whiteaker former owner 96 U270  36' #4831 Austin,TX-Owner Mods LCD TV w/front cabinet rebuild - LCD TV bedroom - Dual Central AC, either can cool coach w 30 amp - Skylights at roof AC openings - Drop ceiling for ducting of AC - Shower skylight white gelcoat/wood/epoxy frame - Air Springs/Shocks replaced - 2014 CRV - 8K Home Solar - Chevy Volt

Re: HWH Six Pack Manifold Corrosion Repair

Reply #32
Mine were the same but not all the ports were used

Re: HWH Six Pack Manifold Corrosion Repair

Reply #33
I followed in Whiteaker's footsteps. My new front six pack just arrived. Purdy, ain't it.
jor

93 225
95 300
97 270
99 320

Re: HWH Six Pack Manifold Corrosion Repair

Reply #34
Unfortunately, I haven't had time to make six pack manifolds. This is going to happen, just not this year. I grossly misjudged the time required (for me) to get our coach where I want it, and have been putting all my effort into that. When I get to a point where I'm ready to start on the manifolds, I'll post progress here.

Greg
Greg & Cathy
2000 U320 4010 DGFE Build #5650
Had: 1999 Tradewinds 7370

Re: HWH Six Pack Manifold Corrosion Repair

Reply #35
I followed in Whiteaker's footsteps. My new front six pack just arrived. Purdy, ain't it.
jor


Can you confirm the price is around $800 for the complete 6 pack?

Guy
2000 U320 4010 WTFE #5609
2017 Ford Explorer toad
Current RVSA Certified RV Technician
Previous 2001 Forest River Windsong 340

Re: HWH Six Pack Manifold Corrosion Repair

Reply #36
Quote
Can you confirm the price is around $800 for the complete 6 pack?

I'll have to check for the exact amount but it was less than anticipated. I think it was about $650 for the complete front six pack sans the two pressure switches. This price reflected the membership discount. Like whiteaker, I ordered it through Foretravel and received it directly from HWH.

Interestingly, in October of 2017 I called HWH and inquired about this part. I was told that the aluminum block would have to be manufactured, that it would take seven days, that it would be a clean block without solenoids and the cost would be $802.
jor
93 225
95 300
97 270
99 320

 

Re: HWH Six Pack Manifold Corrosion Repair

Reply #37
My new manifold from HWH was $600 a year ago. It had to be milled and it took about 2 weeks
1993 U300 40ft GV SE
Build # 4344