bad news for 2nd gear

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bad news for 2nd gear

Post by livelarg » Tue Apr 13, 2021 3:28 pm

Ok, so last week I was working on a buddies Ural, now working on my 06'.

The other day I was riding in traffic and accelerated fairly quickly, (Ural quickly, not real world quickly). As I shifted into 2nd, It didn't go all the way into gear. And as I let out the clutch I hear a clunk.
After that, My bike started jumping gears when accelerating in 2nd. Im guessing I broke off a couple of ridges on the 2nd gear cog, or maybe something got loose?
Right now, I'm revving 1sta a little higher and going directly to 3rd. But need to fix this.

Anyone experience this? Know what the issue is? or guidance on fixing it?
Where do I get the parts? and what else should I work on/repair/replace while Im in there?

Thanks all
Kent
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Re: bad news for 2nd gear

Post by jeffsaline » Tue Apr 13, 2021 4:01 pm

This is probably close for some education on the innards of the gear box.

http://myural.com/

Open service manual and then go to Chapter 5, Gear Box.

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Re: bad news for 2nd gear

Post by livelarg » Tue Apr 13, 2021 10:02 pm

I've googled, and con only find parts for a 650cc Ural. Anyone know a place for parts?
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Re: bad news for 2nd gear

Post by phughes » Tue Apr 13, 2021 10:43 pm

livelarg wrote:
Tue Apr 13, 2021 10:02 pm
I've googled, and con only find parts for a 650cc Ural. Anyone know a place for parts?
Try Terry Crawford. http://www.crawfordsales.info/
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Re: bad news for 2nd gear

Post by S 854 » Tue Apr 13, 2021 11:02 pm

Here’s a video which helped me immensely... ‘course I was working on a Herzog box...

Hopefully someone with experience with both Russian and Herzog can confirm or invalidate the usefulness of it...

'07 Arctic: The Russian Raucous Ship

Things turn out best for the people who make the best of the way things turn out...

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Re: bad news for 2nd gear

Post by raultv » Wed Apr 14, 2021 3:06 pm

:lurker:
interesting, luck
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Re: bad news for 2nd gear

Post by livelarg » Sun May 02, 2021 11:34 am

Well, things just got worse.
I was doing a short ride the other day, and 3rd gear skipped a couple of times, then it just stopped working.
3rd gear didnt seem to be connecting to anything. limped home using 1st and 4th.
so I figure I must be wrong about just chipping a 2nd gear.
anyone have any ideas of what this could be? about to take transmission out.
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Re: bad news for 2nd gear

Post by Wildhorse Cafe » Sun May 02, 2021 12:51 pm

2006 Russian cast Iron gears, 2007 changed to Austrian steel.
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Re: bad news for 2nd gear

Post by wyowillys46 » Sun May 02, 2021 3:43 pm

I recently replaced all of the Russian gears in my '06 due to losing power in third (IIRC) last summer. The splines on the gear were worn enough that the shift collar couldn't stay engaged on the gear. The parallel friction face on the teeth had turned into ramps that would simply push the collar off.

UralNW, now Pacific NW Motorcycles, were able to source the gears. Third gear specifically, took a while for them to track down. It is unique to the late Russian gearbox. And the gears are not cast iron.

This is what grinding gears in Ural a transmission will do. I will say a new set of Russian gears is an absolute joy when operated correctly.
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Re: bad news for 2nd gear

Post by livelarg » Mon May 03, 2021 9:47 pm

ok, so the transmission is apart.

nothing jumped out right away on what was wrong. but upon closer inspection, i saw chipped/work corners of the smaller gears.

these pics are not the greatest, but best I can do.

does this look like it could cause 2 and 3rd gear problems?
IMG_2766.jpeg
IMG_2766.jpeg
IMG_2767.jpeg
IMG_2772.jpeg
IMG_2770.jpeg
IMG_2769.jpeg
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Re: bad news for 2nd gear

Post by HassoBoxhead » Mon May 03, 2021 10:48 pm

How hard is it to change out the gears?
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Re: bad news for 2nd gear

Post by Rich Maund » Tue May 04, 2021 9:17 am

The bearings are a light press fit on the shafts. Remove one and the gears and collars slide right off. Those badly chipped areas are the engagement dogs the collars slide onto to engage the gear. In that shape, they're gonna grind and not want to engage.
I know years ago that Ural sold the shafts as a complete assembly with gears and bearings preinstalled. I got one of those to repair my 95 Ural 20 years ago when it ate its gear box.
DO break in the new gears well. They will need a few hundred miles of careful suburban driving with lots of up and downshifting to carefully polish in the new surfaces to fit each other well. Think riding around town in no more than a 45 zone. I treated my 95 that way to smooth out the new gears riding it to community college in the evenings and it never gave me any more trouble after that.
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Re: bad news for 2nd gear

Post by wyowillys46 » Tue May 04, 2021 11:56 am

Those don’t look that bad. I’d check the inner teeth in the shift collars. If those are good, it may just need the shift quadrants readjusted.

And when you’re ready to reassemble your gearbox, you’ll need to rewind the kickstarter spring. I found I couldn’t do this without holding the two case halves apart by about a half inch or so. That was a frustrating lesson.
Last edited by wyowillys46 on Tue May 04, 2021 12:01 pm, edited 2 times in total.
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Re: bad news for 2nd gear

Post by Crawford Sales Co. » Tue May 04, 2021 11:59 am

I have some choices for you. You can stay with the Russian gear box or go to the newer Herzog. I have everything you need for a complete rebuild.
Give me a call.
Terry Crawford
Crawford Sales
248-437-8107
No personnel messages. Email direct. Thank you
http://www.crawfordsales.info - Web Site
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Re: bad news for 2nd gear

Post by livelarg » Sun May 09, 2021 10:56 pm

Terry Crawford is sending me the whole shaft to replace.
Ill let you all know how it goes putting it all back together.
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