Air Dryer Bypass

Topic: Air Dryer Bypass (Read 1774 times) previous topic - next topic

Air Dryer Bypass

September 30, 2021, 06:09:11 pm

I am finally trying to build an air dryer bypass. I reviewed the topic: Air Dryer Bypass Demo, and went to both O'Reilly and Carquest. They quoted OVER $22 EACH for the elbows ( part #2501) in reply #21 !!!!?

?
I am preparing our trip from Maine to Mexico, so I really want to get this built.
Any ideas as to where to get these parts? What are they called? Is that a realistic price???Seems high to me.
ALSO.....what size plug do I need for the governor?
Thanks

Re: Air Dryer Bypass

Reply #1 – September 30, 2021, 06:17:06 pm

Glenn,

Try locating shops that deal with heavy equipment hydraulic systems service and repair. I live in the West TX oilfield, and out here you can't swing a dead cat without hitting a hydraulic hose and fittings shop. They all carry those fittings. Prices vary according to greed.

The plug for the D2 governor should be plain 1/4 pipe thread, IIRC. Nothing fancy.

Re: Air Dryer Bypass

Reply #2 – September 30, 2021, 06:19:53 pm

Glenn those hose connections that you need to get off to install the bypass will probably be very tight. I needed a pipe extension over the wrench to break them loose. Be prepared 😁

Re: Air Dryer Bypass

Reply #3 – September 30, 2021, 07:12:22 pm

Quote from: Chuck & Jeannie – September 30, 2021, 06:17:06 pm

The plug for the D2 governor should be plain 1/4 pipe thread, IIRC.

Nope - I was wrong - memory failed me (AGAIN). Sigh. Anyway, the threaded ports on the D2 are 1/8 inch pipe thread. See below (page 1, bottom right corner):

http://www.plazafleetparts.com/uploads/2/1/9/0/2190100/d-2_governor_maintenance.pdf

Re: Air Dryer Bypass

Reply #4 – September 30, 2021, 09:31:39 pm

Glenn,
Try Hydraulicsdirect.com, I found the 2 elbows and the collar all for $12.70, but then another $15 for shipping. All in $29 with tax

Hydraulics Direct | Online Hydraulics Store

Re: Air Dryer Bypass

Reply #5 – September 30, 2021, 09:32:56 pm

This should be the actual parts links

5000 - NPT to NPT | NPTF Pipe Female Coupling | HydraulicsDirect.com

2501 - JIC to NPT Elbow | 37 JIC Male to NPTF Male Pipe 90 Elbow | Hydraulics...

Re: Air Dryer Bypass

Reply #6 – September 30, 2021, 09:38:12 pm

Do both this External Compressor Connection to Add Air to Wet Tank and Service Tanks and a dryer by-pass in one project.

Re: Air Dryer Bypass

Reply #7 – October 08, 2021, 12:53:32 pm

I went to a hydraulic shop, here in Maine. They had the parts I needed. All for $14 !!!!!
Yes, there still are honest folk out there, especially here in Maine.

Re: Air Dryer Bypass

Reply #8 – October 09, 2021, 03:19:00 pm

So school me please on why you want an air dryer bypass installed? What does it do for you?
Bob

Re: Air Dryer Bypass

Reply #9 – October 09, 2021, 03:54:23 pm

Quote from: Journey, Roam, Explore – October 09, 2021, 03:19:00 pm

So school me please on why you want an air dryer bypass installed? What does it do for you?

Air Dryer Bypass Demo

Re: Air Dryer Bypass

Reply #10 – October 09, 2021, 04:27:41 pm

I had a forced stop and an $800 tow because the air dryer failed. I can't speak for the OP, but I carry some fittings so the air dryer can be bypassed if it fails.

This allows water build up in the air tanks, but for short-term it is not a worry.

Re: Air Dryer Bypass

Reply #11 – October 09, 2021, 11:03:06 pm

Thanks Chuck, it makes sense. I replaced my air dryer last winter in Arizona. I got it from find it parts and it wasn't the exact same one that I had installed but the same manufacturer. After I installed it and I used a remanufactured one since I didn't know when the last time it had been changed, they charged me $100 core deposit and if I had had room in my bays for it I would have kept it. Initially my air pressure was the same around 110 and it would cut off but I've noticed that recently it's not cutting off until it gets up to 130. I'm not sure why but when I was in Wyoming I had to make a u-turn on a dirt road and I wonder if maybe I got some dirt somewhere but my air dryer is easy to get to right below the air filter on the driver side engine compartment. I don't know if the extra 20 psi hurts the system but it's a concern. I may look at it when I get to Mexico.

Re: Air Dryer Bypass

Reply #12 – October 10, 2021, 12:41:18 am

Bob that would be the D-2 governor that sets the pressure. I don't know why it changed but 130 is what I have mine set to.

Re: Air Dryer Bypass

Reply #13 – October 10, 2021, 08:31:36 am

Quote from: Journey, Roam, Explore – October 09, 2021, 11:03:06 pm

Initially my air pressure was the same around 110 and it would cut off but I've noticed that recently it's not cutting off until it gets up to 130. I don't know if the extra 20 psi hurts the system but it's a concern.

I would say don't worry about it. Initially, your air compressor was cutting out (at 110) way too soon. I agree with The Other Chuck - 130 psi cutout is just right. That's also where I have my D2 set.

Re: Air Dryer Bypass

Reply #14 – October 30, 2021, 01:08:43 pm

Okay so after I change the governor out initially I was holding at 130 PSI which I was happy with until I got on the road and then it was 140 and then 150 again. First rest area I got out and checked the wet tank and not only did a cup of water come out but they're also seem to be some white powder residue mixed in with it and of course I knew with that meant. My air dryer has failed. It's funny we were just talking about this and I'm wondering why somebody would need to bypass the air dryer and a couple weeks later I'm having to do the same thing myself. Funny how that works out huh? Anyway as I'm in Oklahoma City now where they have a ton of fracking and petroleum in Oklahoma I figured no problem. On getting here it's now Saturday so of course 95% of the hydraulic hose companies were closed but Midwest hose and specialty was open until noon and it was almost 11:00 so I got in the car ran over there and was able to get pretty much what I needed. The elbows were $5.09 a piece for a total of $10.18 the straight connector in between was $3.91 I got three different plugs for a total of $3 for all three of those. I bought some thread sealer that was 1525. And I spent way too much money on some hose that I'll use on my generator to replace the air heater hose that O'Reilly's had that's already melted.
So about $38 to bypass your air dryer. Plus a couple busted knuckles a broken thumb nail, two or three scrapes on the fingers and who knows what else fun is in store for me to install it. I think I'll wait till tomorrow though. I've got the tools and I've replaced the air dryer last winter.

Re: Air Dryer Bypass

Reply #15 – October 30, 2021, 01:11:48 pm

No dryers available there?
Scott

Re: Air Dryer Bypass

Reply #16 – October 30, 2021, 01:13:49 pm

Please understand that the dryer removes the moisture that can be quite damaging and if it freezes dangerous to brake operation.
Scott

Re: Air Dryer Bypass

Reply #17 – October 30, 2021, 02:02:18 pm

Quote from: dsd – October 30, 2021, 01:13:49 pm

Please understand that the dryer removes the moisture that can be quite damaging and if it freezes dangerous to brake operation.
Scott

Oh I know what it does. Which is why I changed it out last year as preventative maintenance. Might have been better to just change out the desicant cartridge for all the good it did me... There may be a rebuilt one here but I already have a rebuild kit in the mail. It's not that far from Oklahoma City to Uvalde Texas. I'll just keep draining the wet tank it'll be fine.
I looked on Napa's website but all they wanted to do is ship it to me, I don't have time for that.
Besides it looks like having a way to bypass your air dryer in order to do a get home is a good thing to have in the spare parts inventory. Especially since I'll be heading into Mexico.

Re: Air Dryer Bypass

Reply #18 – October 30, 2021, 02:15:33 pm

Quote from: Journey, Roam, Explore – October 30, 2021, 02:02:18 pm

Besides it looks like having a way to bypass your air dryer...is a good thing to have in the spare parts inventory.

Agree! For what the parts cost, cheap insurance.

I carry 2 kits - one for me and one to give away if I ever encounter another Forum member stranded on the side of the road.

Re: Air Dryer Bypass

Reply #19 – October 30, 2021, 02:17:24 pm

The contamination might have been in the system before you replaced the dryer and it just took awhile to show up.

Re: Air Dryer Bypass

Reply #20 – October 30, 2021, 06:33:36 pm

Chuck, besides the 2 large flared elbows and the coupler to put them together, what other plugs or parts are needed to do the bypass? I have the flared elbows and coupler already, just want to make sure I have whatever else may be needed, just in case.

Thank you

Re: Air Dryer Bypass

Reply #21 – October 30, 2021, 06:50:55 pm

The only thing I can add is that my 2 hoses on the dryer were different lengths which means one side of the U was longer than the other side. But that is an easy fix if yours is the same.

Re: Air Dryer Bypass

Reply #22 – October 30, 2021, 06:54:36 pm

Doesn't something have to be plugged or capped?

Re: Air Dryer Bypass

Reply #23 – October 30, 2021, 06:55:46 pm

Quote from: craneman – October 30, 2021, 06:54:36 pm

Doesn't something have to be plugged or capped?

The air line from the governor but I believe he bought the plug for that.

Re: Air Dryer Bypass

Reply #24 – October 30, 2021, 06:56:45 pm

Quote from: MarkC – October 30, 2021, 06:33:36 pm

...besides the 2 large flared elbows what other plugs or parts are needed to do the bypass? I have the flared elbows and coupler already, just want to make sure I have whatever else may be needed, just in case.

See post linked below:

Air Dryer Bypass Demo

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