I throw myself at the mercy of the court...

[FSJ Gambler]

Goodday to all,
For weeks now, I've been getting great help from you all, on very specific needs. THAT'S MY PROBLEM. I need to step back from my problem and ask you all what area to focus my attention.

Here's the situation:
1. I bought a FSJ with a bad CV joint on the front drive line.
2. I had the Drive line removed. switched to e-drive, drove it 2 blocks, then no go. Spinning noise, but no go.
3. The drive line place said I probly had a bad t-case chain.
4. I towed home. I cracked t-case, all is good. I put back together.
Which bring me to my problem. How do I get an immoble FSJ into e-drive with out power?
I don't trust my vacuum system, I want to manually switch the t-case diaphram, then engage the e-drive, then drive it for a while until I can get a new front drive line and address the vacuum system.

What do you guys think.
Thank you in advance, you guys are amazing!
Shawn

[jasonthomasfrance]

Crud... I can't find the diagram now... I think Porkchop and some others have a diagram of the vacuum thingy on the xfer case. It's not too hard to rig a cable to engage and disengage the e-drive...

[Jerry Anderson]

If you pull the cover off where the diaphram is you should be able to manually shift it.

Jerry

79 Golden Eagle

[FSJ Gambler]

Ok, let's assume I get the diaphram switched.
Now, how do I get drive line locked in?
Do I rock it back and forth, do I push it up and down the driveway?
Right now the engine just runs, no power going to anything...

[jeepguzzi]

Did you make sure you didn't move the low range lever into neutral? That's what it sounds like to me.

Try this to shift the low range on the t/case , put the tranny in neutral but don't start the motor. You should be able to shift the lowrange now.

As far as getting the drivetrain "locked in" you only need vacume supplied to the switch, if you shift it by pulling the cover off, it should lock in when you shift the tranny into gear.

Let us know if any of this works!!

[ November 01, 2002, 12:06 PM: Message edited by: jeepguzzi ]

[FSJ Gambler]

well, I kind of wiggled and giggled everything I could think of.
So is that your advice, Make sure it's NOT in low range.
Then, will it engage automaticly? or what should i do manually?

[jeepguzzi]

Make sure the low range lever on the floor by the drivers seat is all of the way down. If it is part of the way up, it will put it into neutral, and seem like no power goes anywhere.with the Jeep tranny in neutral but the motor off, you should be able to shift the lowrange lever into and out of gear. You can also slide under the vehicle to see how this lever works.

[FSJ Gambler]

Ok, Sorry i'm a little (lot) slow at understanding.
So the key to getting the drivelines going is to first start with the reduction unit. Push it down, get it engaged. Now I can move slow, then take it out of low range, and I can drive normaly in E-drive?

[79cherokeechief]

if the lever under the seat is not all the way down you should hear a grinding noise when you go from drive to park. i learned this the hard way.

[BIGYELLOW78J10]

The BW1339 Quadratrac has 4 modes, controlled by the location of the low range reduction units shifter and the e-drive switch/diaphragm. Technically, there is another mode - neutral, which may well be where you are at. The case should(stock form) have 4wheel high, 4wheel low, 4wheel lock high(edrive engaged), 4wheel lock low(edrive engaged), and neutral. These are not the technical names. The edrive switch when operating should lock the front and rear outputs together, splitting power 50-50 front and rear.

Your situation indeed sounds like the reduction unit got bumped into neutral.

So try to shift the lever as indicated. Pushing it to the floor is high, one "click" or nothc up is neutral, and all the way up is low.

If you still don't get moving at this point, we look to what happened. If the edrive was not truly engaged, it is possible that the rig would have moved some, but not well or happily. You would have, most likely stopped due to noises or lack of drive if you were operating in normal mode with no front shaft.

I will be hoping you were in neutral.

Good luck.

Daniel

[porchpiggy]

One point that I'm not sure was made very clear, is that when you were driving and then no-go, it may have been because your high/low lever (under the seat) slipped into neutral.

[FSJ Gambler]

Boy, it sure would be great if that all it is.
I'll be checking to be sure the lever is down, manually making sure the diaphram is in edrive.
Thanks again,
Shawn

[turtle jim]

Gentlemen:
Am I missing something here? Shawn is trying to run a bw 1339 WITHOUT a front driveshaft.Doesn't the bw 1339 REQUIRE a front driveshaft to work???
As I understand it,the q trac thinks the front wheels must be slipping because it senses no resistance on the front,therefore it sends ALL power to the front.Put the front driveshaft back on and I bet it will drive just fine.

[Crazy_Jeepman]

Well you can run the Q-trac without either rear or front driveshaft. However to do this you MUST be in E-drive. To me it sounds like you are not in E-drive, its that simple. Do not keep trying it, you will burn up the Q-trac, get it in E-Drive!! Anyhow I have front driveshafts for sale if you need one.

[FSJ Gambler]

Well here's where I'm at...
I'm sure the the floor lever is down and not in neutral. I checked it every which way.
What I think is the diaphragm is bad.

How do you test a Diaphragm? I've blown into both of the tubes going in until i'm blue in the face.
Nothing happens, the tubes clogged or the diaphragm is bad. I can't afford a $40 Mityvac vacuum pump, so i'm stuck blowing.

Is there anything else I can try?

[jode]

maybe Im missing something here, but if it requires vacuum, why are you blowing???????????????????? :confused:

[FSJ Gambler]

Good point, i'll try sucking.
I'm kind of new to athis...
thanks

[turtle jim]

Brings to mind an old joke,but since it's a family forum I'll just leave it to your imagination.

It is a VACUUM diaphram.Simple test is to connect a convienent length of good vacuum tube to either nipple and SUCK.Put your tongue on the tube and see if it holds vacuum.

[jode]

If your lungs dont have the sucking power, and you cant afford a special vacuum pump, try getting a syringe from your local veterinarian (the 60 cc kind) and putting it in the vacuum line....then you can pull the plunger and there you go, Vacuum....

Just tell the doc what you are up to (not drugs) and then offer to give him a buck or two for it....he will proilly give you one for free.