Gen and Air Compressor on 6V92

ArtGill · January 10, 2017, 01:49:09 PM

I am redoing my bedroom (Scott & Heather's fault) and think this would be a good time to replace my Air compressor and have the Alternator serviced. The Engine manual doesn't the removal and installation of these items. I have read something in years past about a fiber gear vs. a metal gear. What should I do about these gears and where are they. Are there any othe things I should do while removing and installing an air compressor and Alternator on my engine?

Thanks in advance for the sharing of your wisdom and experience.

Art

daddysgirl · January 10, 2017, 03:57:12 PM

My set up is different than yours, but IMHO, as you replace the bedroom.. it might be a good idea to leave access to rear engine panels. Even if you just use screws, they can be removed easily should you ever need access. You just never know

Do you have the 50DN and TruFlo 700?

ArtGill · January 10, 2017, 04:17:50 PM

I have an access panel, but is under the bed. So, I'm going to take advantage of not having to worry about how much mess I'm going to make in the process. I have a 2 month trip from Noeth Carolina to Alaska planned for the Summer of 2018, so I want to do preventive maintenance.

Art

luvrbus · January 10, 2017, 04:47:44 PM

You have the steel drive gear,if the compressor is not pumping oil leave it alone you roll the dice with a rebuilt compressor anyways.Do you still have 2 alternators on your NJT Eagle ?

ArtGill · January 10, 2017, 05:31:55 PM

I've heard about the steel gear taking out the drive train of gears on that end of the engine. So, is there a fiber gear that will act like a shear pin? Where can I find one.

The 24v alternator was removed with the coach AC.

luvrbus · January 10, 2017, 06:32:51 PM

The fiber drive gear has been gone for 40 years,the compressors have a shear key now to prevent the drive from breaking

Scott & Heather · January 11, 2017, 04:28:30 AM

Lol. Art, do tell

Sent from my iPhone using Tapatalk

luvrbus · January 11, 2017, 06:59:05 AM

The compressor is not the problem, if you have the gear driven alternator it should come off and replace the bearing that is a bomb waiting to go off

ArtGill · January 11, 2017, 05:53:18 PM

Scott, after seeing your conversion and the foam insulation, I decided to tear out my bedroom and start over with foam. I had some rotten floor that needed attention, some water leaks and a portion of a wheel well that needed attention to damage done by a blowout.

Luvrbus, Yes I'm planning to service the alternator also. Any other suggestions while I have easier access?

Scott & Heather · January 12, 2017, 05:45:49 AM

Nice! Do post photos of the process!!

Sent from my iPhone using Tapatalk

bevans6 · January 13, 2017, 05:18:48 AM

If the 24v alternator was removed, then that is the alternator that is often gear driven and can cause problems. So if you don't have it, you don't have the potential problem - but what alternator do you have and where is it and how is it driven?

Brian

daddysgirl · January 14, 2017, 09:48:20 AM

I am not trying to snag into Art's post, but I have the 24v gear driven thing (I say this due to the lack of any belt, and the pictures from the manual are the same)
I just made a new harness for it, and even painted it too. What about a time bomb? The thought of anything happening to that beast is not a happy one. I'm not even sure it would fit through the access, and it weighs nearly as much as I do.

B_K · January 14, 2017, 11:33:48 AM

The bearings in the 50DN alternators are quite prone to "letting go" if they are not serviced on a regular schedule.
Many people over look them due to the fact A) it's hidden back there is never land. B) that huge alternator weighs a ton. C) it's very hard to remove via the access panel it barely fits thru (and only when turned just the right way) D) most feel "if it ain't broke why fix it?"

Well Clifford, myself and several busnuts that have seen the damage first hand that it can cause when a ball bearing drops out of it and locks up the gears on the back of the engine doing MASSIVE damage that will cost MEGA bucks to fix.

So if you have no idea when the last time the bearings were changed in that big ol' thing it's a good idea to pull it out and either order the parts and do it yourself, or take it to a reputable rebuilder and have it rebuilt.

BK

buswarrior · January 14, 2017, 05:29:09 PM

85 lbs of HELL.

Mine has grease fittings, air cooled, belt driven.

Do the gear drives have the same grease pipes?

happy coaching!
buswarrior

bevans6 · January 15, 2017, 07:00:24 AM

I understand the gear drive alternators get their oil drained through the gear mount, but still have an external oil feed line. My oil cooled belt drive has three oil lines which are a PITA and leak, one is pressurized oil feed, one is a 1" ID oil drain line down to the sump, and one is a vent to the cylinder head. No grease fittings.

Brian