Brumby G box not driving in front

revmax · Post by **revmax** » Wed Dec 28, 2011 8:07 pm

Am buying a Bomb Brumby tomorrow for a farm ute and spares.
The front is not driving and the owner seems to think one of the front pinions is stuffed, but I think he means sun gear. CV's appear to be good with less tha 10,000ks on them
is there a common fault that this is likley to be and does the box need to be split to fix it.
Thanks for reading.

Post by **TOONGA** » Wed Dec 28, 2011 8:36 pm

I would be checking the front hubs where the CV"S bolt up to the discs. These are notorious for getting chewed out and the splines just disappear (one day I will take a photo of one) they look very similar to the hubs on the rear discs you just bought but have bigger splines.

Try putting the car into 4WD and if it drives with out making buckets of noise from the gear box then it is a hub.

Or if you are game enough in 2WD put it into 1st and let the clutch out, if it doesn't move but is still running, then get out and check the hubs one of the CV shaft nuts will be spinning freely.

TOONGA

revmax · Post by **revmax** » Wed Dec 28, 2011 9:06 pm

Thanks Toonga. yer it drives fine in 4wd. I might be lucky as I have some spare front hubs and discs. see here showpost.php?p=185248&postcount=63 Please let it bee that simple.
Hey hang on. he said one of the front hubs keeps working loose and no amount of adjustment is fixing it. That kind of adds up with your diagnosis as well. Hope it makes the trip from Nambucca to Coffs tomorrow

YouTube · Post by **El_Freddo** » Wed Dec 28, 2011 11:48 pm

revmax wrote:Hope it makes the trip from Nambucca to Coffs tomorrow

Stop every five minutes and make sure it's still there. Or replace the split pin with something larger!!

Safe travels!

Cheers

Bennie

revmax · Post by **revmax** » Thu Dec 29, 2011 4:08 am

Is the spline on the CV likley to be still OK. If so I will fit amother hub before I make the trip. If it is likley to be damaged then I'll wait till I get it back home and replace the CV end, pretty sure I have one of them to.
Thanks Bennie I will put a nail in there if I make the trip as is.

RSR 555 · Post by **RSR 555** » Thu Dec 29, 2011 8:09 am

I agree with the others in saying it's most likely to be the drive hub. I've had this many of times (as I'm sure many EA model Subie models owners have) but you will need to check the outer CV spline. I'm sure there will be some were but due to the fact that is made from High Temp Carbon Steel (as apposed to the case mild steel of the hub) it more than likely can be used again. Just make sure you clean it with a wire brush.

Two good pieces of advice I can give you is, 1. Make sure the taper washer has no sharp lips on it. As this can stop the large nut from being tightened up properly and 2. Make sure you do that nut up really tight !!

revmax · Post by **revmax** » Thu Dec 29, 2011 8:19 am

Thanks, will throw in a wire brush to.
Have a spare nut, tapered washer , washer, split pins and hub.
Just incase for the trip back have some engine oil, water (cause it has a heating problem, but after speaking to my dad he seems to think the radaitor could be partialy blocked cause it only spews out some water then the level settles) and some tools.

steptoe · Post by **steptoe** » Thu Dec 29, 2011 10:13 am

seen a new , as in 2 weeks old, made in china cv split and spit at 4am on the highway

The 4WD lever did things nicely up onto the tow truck

revmax · Post by **revmax** » Thu Dec 29, 2011 3:15 pm

It was the hub. Yippee.
Means the Brum will get retirement on me mates farm and won't get wrecked.

Drive it to a car park for a play park near the Golf course at Nambucca and fitted another hub. Drove it home to coffs 2wd no probs.
Thanks for the help fellas.

RSR 555 · Post by **RSR 555** » Fri Dec 30, 2011 4:13 pm

Great to hear.. glad you had the parts ready to fix

Love the roadside repairs.. RAC will be upset

YouTube · Post by **El_Freddo** » Fri Dec 30, 2011 8:29 pm

revmax wrote:

Means the Brum will get retirement on me mates farm and won't get wrecked.

Awww... Fix her up and keep her on the road, especially with those awesome 80's decals!! Can't go past them!!

Cheers

Bennie

revmax · Post by **revmax** » Fri Dec 30, 2011 8:53 pm

Oh i'm fixen her up but not for the "on" road. Still working on her right now.