MCI 9 Air drier?

jmblake · July 20, 2016, 07:06:53 PM

On our way down south we developed a leak on the air drier, It got a hole rusted in the can underneath the bracket that holds it to the frame. A new AD-2 drier from my local truck garage is $800.00

Since mine isn't any good for a core I have that charge in there also, I can get a AD-9 for $280.00 but will have to do some re-plumbing, so my question is what would be the best way to change from the solid piping that goes there now to new plastic and the best way to connect new to the old

Thanks Jason

Geoff · July 20, 2016, 07:16:02 PM

You don't want plastic! You have to use DOT air line and fittings.

--Geoff

jmblake · July 20, 2016, 07:25:52 PM

Yes DOT air line is what I meant, What would be the best way to connect it to the I think its copper tubing?
Jason

stevet903 · July 20, 2016, 07:28:33 PM

Here's one for a better price if you don't want to change the air lines -

http://sixrobblees.com/products/details.aspx?i=2347

- Steve

Jim Eh. · July 20, 2016, 07:48:25 PM

If it is copper it is the same spec O.D. as plastic so a DOT union will connect the two. You may have to cut the copper tube back some and use a short length of synflex to make your connection work but a DOT union is perfectly suitable and a proper fitting in that application. You just don't use the insert on the copper line like you need to for the "plastic" line.
Personally I would choose the AD9 over the AD2 but to each their own.

jmblake · July 20, 2016, 07:56:47 PM

Thanks for the replies guys, I haven't had time to get under there and really look and see how much room I have to work with in the tubing put I will probably go with the AD9 if I got room for the fittings to make it work.
Thanks Jason

brmax · July 20, 2016, 08:00:47 PM

May be lucky and find the old connected to a junction/union on the wall and be able to just go from there back down with the new standard dot plastic in 3/4most likely. sorry Jim I haven't updated or could help some more.

luvrbus · July 20, 2016, 08:38:56 PM

Jason, the AD 9 is a bear to get into that space because of the diameter of the AD 9 just plan on all day to make the change over and park in front of a truck supply to do the change over that saves a lot of trips

brmax · July 20, 2016, 08:58:37 PM

Jason I meant, I screwed up postin back there .
I was thinking you must have got back or close to home some how or just checking your regular parts contacts.
So are you some where else possibly that we need to figure something out there.

Floyd

Dave5Cs · July 20, 2016, 09:39:19 PM

Jason when mine keep purging and would not close or build air. I pulled both lines and connected them( bi-passed it with 1/2" DOT line). Haven't replaced it yet and it has been fine. You also pull the line to the Governor and plug it. I always drain the tanks when I shutdown for the night. No problems or changes other than I don't have air problems there anymore.

Dave5Cs

jmblake · July 21, 2016, 04:12:37 AM

Thanks guys, Yes we are home. I will check over the weekend to make sure there is room for the AD9 I know there isn't much, I will also check to see were the lines connect hopefully near a junction block that would make things a lot easier. Luckily I'm only 3 mile from the truck supply store

Thanks Jason

brmax · July 21, 2016, 05:13:35 AM

Its glad to hear you have it there, I had found using the ramps on front made for a decent work area fwiw. Some of the newer compressors and engines have a bit different setup so I thought this video clip may be worth a look for some of us with update thoughts, repower thoughts or just new stuff. The Fella here looks to be starting with the ad9 and discussing newer.
good day there
Floyd

https://www.youtube.com/watch?v=EAZJuaX1xNM

luvrbus · July 21, 2016, 06:26:21 AM

Jason, I plan on moving my drier on the DL to engine compartment for easier service, on a MCI that was a dumb place to put a drier

jmblake · July 21, 2016, 06:42:12 AM

Cliff, I agree, they could have found a better place especially when your out on the road and have problems, luckily I have the air leveling that I got enough air to get the front end up so I could get in there and see what was wrong. Does it have to be so far from the compressor? I might have room for it in the engine compartment now with the 50 series.
Jason

lostagain · July 21, 2016, 06:49:12 AM

On the D3 I used to look after for the hockey team, the dryer had been moved to the engine compartment. Nice and easy to service, short supply line from compressor. Never a problem.

JC