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Topic: Holset type e compressor (Read 2745 times) previous topic - next topic

Re: Holset type e compressor

Reply #25
Bob I'm confused how a defective dryer would cause excessive pressure and installing a bypass would allow pressure to function normally? I would think a defective dryer would cause low pressure issues and moisture issues. Still think you have regulator/control issues with dryer problems added to them.
Scott

Scott, I honestly don't know how to answer that except for the fact that putting in the bypass kit and taking the air dryer out fix the pressure issues. It was no longer pegging at the top of the dial. I'm thinking that I had the isolation valve in the previous air dryer and didn't pay that much attention to the part number. I read on the forms that this is the part that they use so I didn't think anything different. I'm definitely going to put in a different air dryer. Or rebuild the bottom of the one I have now with a new purge valve and put in an isolation valve. I've got a few months to think about it since I don't really want to pay for shipping down to Mexico. But my air dryer is sitting in the front seat of my Jeep so I might be able to get them sourced in Mexico. Appreciates everybody's input on this and hopefully it won't be confusing but it will be a frame of reference on which one to use and which one not to use. The bottom line is check your air compressor on the engine. Trying to get some degreaser / brake cleaner into that area was difficult. I didn't want to get  up in the ground and spray up when it would come back down on me and I already spent enough time underneath the coach taking the air dryer out and putting the bypass on. And and bit me in the auxilla area and it hurt. I did not want to get back down again so I had to spray between the air conditioner compressor in the mount for it and then put my phone kind of in sideways and take a couple pictures until I got something presentable. I'm just glad it's not the air compressor that's having problems. And I don't think it's the unloader valve because it seems to be maintaining pressure now at 110 psi.
And I replaced the governor with a new one. I guess it's possible that that governor's defective as well, but I don't think so since the pressures are holding right at 110. I used to think that the purge on the dryer was the system get rid of extra air pressure, but now no from the research that it's just to recycle and clean the dryer. Dryer. Also notice some oil on the passenger front of my Jeep being towed today. It's spotting nothing major but it wasn't there before.  Also, when we got to where we're staying tonight in Mexico I open the wet tank and I got a good amount of water out along with some additional desiccant powder. I think as the water level climbed during the day it was hitting places it didn't hit before and washing the desiccant off the side of the tank.
'99 U320 40 WTFE
Build #5462,
1500 Watts Solar 600 amp Victron lithium
2012 Jeep Grand Cherokee Overland Hemi
Instagram bobfnbw
Retired

Re: Holset type e compressor

Reply #26
Keeping my Foretravel running wouldn't be possible without you guys. Thanks for your explanations, photos and support.

Bob, I plan to make the drive to Q and arrive Jan 22. Let me know if I can carry some parts to you as I am close to Foretravel and MOT (if needed).
Walt, Dawn, Matt & the Poodles
99 36' U320 #5515 MC #17977 "Axle"
Not All Who Wander Are Lost (not original but I like it)

Re: Holset type e compressor

Reply #27
The Econ valve is built into some dryer models.  It is an internal passage in the aluminum base.

As Mike says, you already have a Isolation Valve on your dryer, which is probably why you are not having any problem.

When you do get around to rebuilding or replacing your dryer, you should consider getting a new fresh isolation valve to go with the new dryer.  Cheap insurance.

KN23500 - Isolation Valve - Haldex product

If you do want to buy a new isolation valve I will sell the one I bought for $75.00- shipped.

Haldex KN23500 Isolation Valve, OEM# N15842J: AnythingTruck.com, Truck &...
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Holset type e compressor

Reply #28
Bob,ask on the forum for someone with your year and engine and air compressor to see what dryer they have and go from there.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Holset type e compressor

Reply #29
Bob,ask on the forum for someone with your year and engine and air compressor to see what dryer they have and go from there.

Walt's coach and Bob's have the same set up you are talking about.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Holset type e compressor

Reply #30
Keeping my Foretravel running wouldn't be possible without you guys. Thanks for your explanations, photos and support.

Bob, I plan to make the drive to Q and arrive Jan 22. Let me know if I can carry some parts to you as I am close to Foretravel and MOT (if needed).
Thanks but I'm in Mexico headed for Mazatlan. Won't be back stateside until April.
'99 U320 40 WTFE
Build #5462,
1500 Watts Solar 600 amp Victron lithium
2012 Jeep Grand Cherokee Overland Hemi
Instagram bobfnbw
Retired

Re: Holset type e compressor

Reply #31
Bob,try cracking the drain valve open just enough to let water out but maintain air pressure,may help.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Holset type e compressor

Reply #32
Bob,try cracking the drain valve open just enough to let water out but maintain air pressure,may help.

David, I did that on the drive down from South Dakota and it did keep the pressure from maxing out. Also kept the wet tank empty which was nice.

What I need to do now is fine. Either the correct air dryer which is choice number 2 or modify the existing system to work for now which is my number one choice. That would mean getting the bottom purge valve rebuilt so I need that kit as well as the isolation valve. That would be the least expensive way to modify things to work for now. But in the meantime I don't really plan on driving my coach for 5 months. So no hurry. Twig says there's plenty of trucks in Mexico with this arrangement, so that's what I'll be looking for. If worse comes to worse, I'll drive back up to the US and with the same bypass draining the wet tank as I go until I get back to the US.
'99 U320 40 WTFE
Build #5462,
1500 Watts Solar 600 amp Victron lithium
2012 Jeep Grand Cherokee Overland Hemi
Instagram bobfnbw
Retired

Re: Holset type e compressor

Reply #33
Bob, keep in mind that using the drain to keep the water out will run the compressor continuously. Might be better to let it cycle as I believe from your previous posts that the unloader valve came unstuck and you were cycling at 130 psi. Then drain at each stop you make. That is if the governor is working at the time you come back.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Holset type e compressor

Reply #34
Bob, keep in mind that using the drain to keep the water out will run the compressor continuously. Might be better to let it cycle as I believe from your previous posts that the unloader valve came unstuck and you were cycling at 130 psi. Then drain at each stop you make. That is if the governor is working at the time you come back.
Yeah Chuck, once I put the bypass in that's what I did. I left the tank closed and just emptied it from time to time. Which reminds me, I didn't empty it after I got the Mazatlan so there's probably water in the tank and needs to be drained. I'll do it tomorrow. If I can find a way to get mail sent down here then I might just buy that isolation valve off of you. It'd have to probably be shipped via DHL though which would incur additional shipping costs cuz it would be international.
The other thing I need is to rebuild the purge valve. I'm going to see if I can get that locally.
Had an interesting thing to happen to me and twig coming down off the mountains into Mazatlan. An 18-wheeler in front of us rear brakes caught fire and there was no place for him to pull over so he just kept going. I don't know if he even knew it. I tried to radio twig on the CB to say hey back off that trucks on fire. Twig finally saw it and went around him. We pulled over a few kilometers further down and he came in behind us no longer on fire so I guess in the end everything worked out but he wasn't driving anywhere else for a while.
'99 U320 40 WTFE
Build #5462,
1500 Watts Solar 600 amp Victron lithium
2012 Jeep Grand Cherokee Overland Hemi
Instagram bobfnbw
Retired

Re: Holset type e compressor

Reply #35
The other thing I need is to rebuild the purge valve. I'm going to see if I can get that locally.

If you have the Pure Air Plus you also need to check the turbo saver to see if the seat end has broken off.  If you order the DQ 6020 a new turbo saver valve comes in that kit so replace it rather than thinking it is for another air dryer.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."