Author Topic: Driveline Problem - Blown UV Joint (Read 12837 times)

StinkyPete · « **on:** October 19, 2015, 06:48:22 PM »

On the run back home from Silverton, I noticed a vibration being transmitted through the footpegs. It was more noticeable when travelling over undulations where is would show when the suspension unloaded. It is definitely speed ralated as the frequency of the grumble or vibration changes with speed. On the centrestand and in gear it sounds quite untidy.

I drained the final drive oil and it's clean with no metal present. I had the rear wheel off today and the drive rubbers are fine, the bearings feel good and brake is fine. Drive splines all look OK. She goes into the dealer tomorrow for a diagnosis, and the service manager suspects a knackered UV joint.

This is a bugger, as she's now off the road.

I guess I'll have to mow lawns, dig vegies, mind grandies, hide in my shed while wearing my helmet, cook, and do dishes and other domestic tasks until she's well again.

Sicman · « **Reply #1 on:** October 19, 2015, 08:31:18 PM »

Bugga

richo · « **Reply #2 on:** October 19, 2015, 08:42:13 PM »

Hopefully you will not be off the road for too long.

ST2UP · « **Reply #3 on:** October 19, 2015, 08:46:30 PM »

How does the rear tyre look Pete......is it out of round ?? I hit a big pothole once and damaged the cords in a bias tyre that gave same symptoms you discribed

StinkyPete · « **Reply #4 on:** October 19, 2015, 09:50:27 PM »

Quote from: ST2UP on October 19, 2015, 08:46:30 PM

How does the rear tyre look Pete......is it out of round ?? I hit a big pothole once and damaged the cords in a bias tyre that gave same symptoms you discribed

It's a new rear, only fitted a couple of weeks ago, and I don't believe it's tyre related. With the checks I did today, I think I have eliminated anything to do with the rear wheel or brake, which leaves the driveline. Because it's a feint but repetitive "clunK, clunk, clunk" as it idles in gear on the centrestand, Moto Adelaide might be right in suspecting the universal joint, but can't know for sure until it's pulled out.

Gadget · « **Reply #5 on:** October 19, 2015, 09:58:34 PM »

Is it in all gears?

StinkyPete · « **Reply #6 on:** October 19, 2015, 10:12:44 PM »

Quote from: Gadget on October 19, 2015, 09:58:34 PM

Is it in all gears?

Yes it is. I sure hope it won't be too many $$$ to get sorted.

Gadget · « **Reply #7 on:** October 19, 2015, 10:13:51 PM »

To many wheelies have put too much strain on the diff.

ppopeye · « **Reply #8 on:** October 20, 2015, 06:32:40 AM »

Thats not so good. Hope its not too big a job

Sent from my iPad

Sabie · « **Reply #9 on:** October 20, 2015, 12:35:45 PM »

What are you doing Pete.... Get back in the kitchen..

Quote from: StinkyPete on October 19, 2015, 10:12:44 PM

Quote from: Gadget on October 19, 2015, 09:58:34 PM
Is it in all gears?

Yes it is. I sure hope it won't be too many $$$ to get sorted.

StinkyPete · « **Reply #10 on:** October 20, 2015, 02:14:42 PM »

Quote from: Sabie on October 20, 2015, 12:35:45 PM

What are you doing Pete.... Get back in the kitchen..

Woops..... I had sneaked out of the kitchen while the boss was at work to look at the Forum and got sprung.

Tomorrow I might have to put my helmet and jacket on, and watch some GoPro footage.

StinkyPete · « **Reply #11 on:** October 20, 2015, 03:23:21 PM »

I've just had the call......

Front UV joint is totally shagged and about to let go, so I was VERY lucky to get home.
Some seals damaged by the metal bits floating around inside the swing arm, and will be replaced.
Swing arm bearings have some normal wear, so I've asked that they be replaced, since the swing arm is already out.
Spline that the rear wheel engages has a bit of wear but remains quite servicable.
New front Michelin PR4 while the bike is in sick bay, as my existing tyre is done.

Off the road for around three weeks while major parts come from Japan.

Nigel · « **Reply #12 on:** October 20, 2015, 03:43:19 PM »

Good catch Pete, glad to see you made it home ok that's the main thing..................

West Aussie Glen · « **Reply #13 on:** October 20, 2015, 05:11:56 PM »

So how many ks has your bike done Pete?

StinkyPete · « **Reply #14 on:** October 20, 2015, 05:55:09 PM »

Quote from: West Aussie Glen on October 20, 2015, 05:11:56 PM

So how many ks has your bike done Pete?

135,000km in six years. All services on schedule, and I must say that I've never heard of anyone in OZ blowing a UV joint, but there is some discussion on the US site.

STroppy · « **Reply #15 on:** October 20, 2015, 05:57:08 PM »

All those Mono's Pete . . You gotta keep that front one on the ground too!

StinkyPete · « **Reply #16 on:** November 06, 2015, 04:32:59 PM »

I got the bike back today. She now has a new UV joint, rear engine seal, swing-arm bearings and a new PR4 GT on the front. It sure feels smooooth with all that backlash taken out of the driveline. The service manager says that they have never seen an ST with a blown UV joint, but they have done six in the last two or three years in BMW's. The UV joint was so worn that the housing knuckles were bashing against each other.

Sicman · « **Reply #17 on:** November 06, 2015, 06:35:05 PM »

Good news Pete

-

Shit you were damn lucky you coasted that thing home safely

Gadget · « **Reply #18 on:** November 06, 2015, 07:24:51 PM »

Good to hear she's back on the road.

ppopeye · « **Reply #19 on:** November 06, 2015, 07:44:31 PM »

Good news.

Sent from my iPad

Shiney · « **Reply #20 on:** November 06, 2015, 10:05:29 PM »

Glad to hear everything is back to working properly

Sent from my SM-N9005 using Tapatalk

Biggles · « **Reply #21 on:** November 06, 2015, 11:26:19 PM »

Sooo... How much dollars for all that, or would you rather forget?

StinkyPete · « **Reply #22 on:** November 07, 2015, 06:24:58 AM »

$1300

I guess it's just part of the price of having fun, but I'll certainly need Chris to work a few more hours each day for a while.

Wombattle · « **Reply #23 on:** November 07, 2015, 06:29:19 AM »

Really glad that's sorted Pete and that it feels just like new now.

Seems like a reasonable price, I wouldn't want to have the same work done on a BMW!

Wild Rose · « **Reply #24 on:** November 07, 2015, 10:09:32 AM »

Makes you wonder how they worked the bill out. $1 per cc. You should have told them it was only 250cc

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Author Topic: Driveline Problem - Blown UV Joint (Read 12837 times)