Topic: loss of drive (Read 7889 times)

Nosebolt · « **on:** September 10, 2008, 10:51:27 AM »

As you’re probably fed up of hearing by now, I got as far as the M32 slip road on the way to Cheapfest, stopped at the lights ok went to pull away and it started rolling then a sound like if you miss a gear and it lost drive. Tried changing high to low and all 4 gears plus reverse and the problems are the same.
At the road side I removed the cover panel and noticed that as I pulled away in 2wd while driving front prop is static and as soon as the noise starts the front prop spins, in 4wd the front prop turns slowly until the noise starts then it spins fast.
Anyway I started to remove the trans box today, got as far as getting access to the top bolt and removed the gear stick and noticed the fork didn’t look right (bit pissed I didn’t notice it when I changed the clutch earlier this year) so here are some pics.
1, is it damaged, badly repaired?
2, could it be the cause of my drive problem?
3, has anyone got one for sale?

scrw · « **Reply #1 on:** September 10, 2008, 12:15:19 PM »

I'd say that isn't your problem, if you are getting the front prop spinning the clutch is working, sounds more like a duff transfer case to me

Nosebolt · « **Reply #2 on:** September 10, 2008, 12:23:15 PM »

thought that would be to easy :cry:

Nosebolt · « **Reply #3 on:** September 10, 2008, 05:58:32 PM »

ok transfer box is out and I just realised that my Chiltons manual is shite!
other than an exploded drawing there are no details or service instructions.
any advice welcome

scrw · « **Reply #4 on:** September 10, 2008, 06:28:46 PM »

personally I would test it for correct operation first. When I had one go bad I cheated and bought one from www.1stchoice.co.uk

Dave69 · « **Reply #5 on:** September 10, 2008, 07:35:26 PM »

is it designed to be that bent and notched ??

Nosebolt · « **Reply #6 on:** September 10, 2008, 07:47:56 PM »

Quote from: "Dave69"

is it designed to be that bent and notched ??

I don't know, all I can say is the gear change was smooth

davethedog · « **Reply #7 on:** September 10, 2008, 07:57:38 PM »

hi let me know what you need i might have it, if you ask bubba (nicely)he can check for you , as he is very local to me and knows what he is talking about.
Regards D.T.D

Bubba · « **Reply #8 on:** September 10, 2008, 08:18:14 PM »

ya problem is in with the transfer not the main box sure the shifter fork is well funky [looks like poor repair] but that would only lose one gear maybe two but you wold still have maybe fist/reverse
you seem to have lost motion rather than a particlar gear could you refit the single shift stick to the transfer and bench test it even by hand you should be able to feel poor or no selection of high low
if it is a dana 300 it is known in rare/ish cases to bust the output shaft but this is normaly combined with hi po v8s 35+tyres

Nosebolt · « **Reply #9 on:** September 10, 2008, 08:44:43 PM »

the transfer box is now on my work bench and if I get time tomorow I'll be unbolting bits to see whats inside.
I dont have the original single stick anymore but the twin feels like it locates ok and will drive for a few seconds before the noise starts and drive is lost.

Bubba · « **Reply #10 on:** September 10, 2008, 08:47:57 PM »

expect some kind of debris then

JohnFuk · « **Reply #11 on:** September 11, 2008, 01:16:46 AM »

Hi Mate
Try

http://www.pirate4x4.com/tech/billavista/PDFs/

Go down to [Jeep component service manual TCase_NP231]

I think its what your after

:-)

Best of luck

Nosebolt · « **Reply #12 on:** September 11, 2008, 08:12:29 AM »

Quote from: "JohnFuk"

Hi Mate
Try

http://www.pirate4x4.com/tech/billavista/PDFs/

Go down to [Jeep component service manual TCase_NP231]

I think its what your after

That’s exactly the sort of thing I was after, but I have a Dana 300 :cry:

There’s always the weekend :lol:

JohnFuk · « **Reply #13 on:** September 12, 2008, 11:36:30 PM »

Best of luck hope it all goes well :-)

wildwood · « **Reply #14 on:** September 13, 2008, 09:07:17 AM »

I am guessing it is the shifter forks and a couple of chipped gears , all salvagable and all replaceable its a nice box to work on even the roller bearings aren't such a hassle to deal with.
Had a google last night seems that Quadratec have all the bits either singly or as a kit and if you do win the lottery small time tonight they do rebuilt and guanranteed cases for about $1,000. Not cheap but cheaper than an Atlas?!!
Best of luck

wildwood · « **Reply #15 on:** September 13, 2008, 10:20:20 AM »

Just googled again and found this
http://www.hicks4x4.com/transfer_case_price_list.htm
rebuilt Dana 300s at $795 thats about £470 before shipping.
I know its money you never wanted to spend but I know rebuilds always have a ever increasing shopping list of parts
best of luck

Nosebolt · « **Reply #16 on:** September 13, 2008, 04:04:34 PM »

ALL HAIL THE GURU BUBBA!!!

I recon Bubbas first diagnosis was correct, sticky selectors. Oil drained as clean as when I put it in 3 months ago. Visual inspection shows no damage to the gears. Only thing I found was a build up of crud around the selector shafts. With the inspection cover removed from the underside and the box up side down on the bench it all works fine. Next is a good clean, make a new gasket, reassemble and test again right way up.
Can’t refit to the CJ till Monday because the jack locked in m8s workshop.

scrw · « **Reply #17 on:** September 16, 2008, 11:44:48 AM »

Saw a "Jeep" (unsure what it was, flat fenders) the same orange colour as yours on the a55 yesterday, wasn't you was it?

Nosebolt · « **Reply #18 on:** September 16, 2008, 03:19:07 PM »

na m8,
I did try to get Dan to push it while I sat in it for some fun but he moaned that it was to heavy :evil:

not been drivable for week now

Nosebolt · « **Reply #19 on:** September 21, 2008, 04:32:14 PM »

GOOD NEWS!!!

it's not the trans box, that fine :cry: finally did what i should have done BEFORE I took out the transfer box, and looked at the rear drive shaft while it made that god awful noise, whn the noise starts the rear prop shaft spins like it do 60 with the car stationary. having spent last few hours putting transfer box back in I havent taken the diff apart yet but a pound to a pinch of shit thats the problem.

Next question is re-build or replace? money is a big factor but was a future plan to fit one piece shafts so this might be the time.

Bubba · « **Reply #20 on:** September 21, 2008, 05:48:22 PM »

you have spun a shaft in the hub look at the nut on the pasenger side rear wheel the large nut in the middle bet its spinning on the hub [always seems to be that side first]

Nosebolt · « **Reply #21 on:** September 21, 2008, 08:06:04 PM »

Run out of daylight so will have to check tomorrow, just to be clear do you mean the drive shaft is spinning in the hub?

If so a perfect excuse for a set of one piece shafts, but to be honest it sounds more "gear-y" so with my luck will be in the diff it’s self.

captain cavalier · « **Reply #22 on:** September 23, 2008, 08:28:18 AM »

Go on then what happened

This is turning into a saga

Bubba · « **Reply #23 on:** September 23, 2008, 10:02:32 AM »

yup i meant shaft spinning in hub makes a fearfull noise

Nosebolt · « **Reply #24 on:** September 23, 2008, 10:24:11 AM »

Sorry I keep getting interrupted by work :roll:

Author Topic: loss of drive (Read 7889 times)

Nosebolt

scrw

Nosebolt

Nosebolt

scrw

Nosebolt

davethedog

Nosebolt

JohnFuk

Nosebolt

JohnFuk

Nosebolt

scrw

Nosebolt

Nosebolt

Nosebolt

captain cavalier

Nosebolt