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1Back to top Go down    Final drive bearing play on Sun Apr 08, 2018 7:21 am

Neal Cooper

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Hi All,
This is potentially a job that will need doing on my 'bike'. I use the term bike loosely at this stage as it's not all there as I have said before. 'Not quite all there' may describe the owner too...
Anyway, I have never removed a bearing in a part such as the final drive of K100 and am sure I have no special bearing removal tools.
I understand the value of heating certain bits and cooling others when dealing with bearings and as yet have only ever changed an upper steering head bearing myself.
Tools needed?
Useful tips?
Looking forward to getting into the garage to start assessing, assembling and getting the skeleton back together. Will post photos asap.
Cheers
Neal

    

2Back to top Go down    Final Drive bearing play on Sun Apr 08, 2018 7:26 am

Neal Cooper

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3Back to top Go down    Re: Final drive bearing play on Sun Apr 08, 2018 8:42 am

Born Again Eccentric

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Yay for the power of the search function - final drive bearing play seems to be a hot topic this weekend (you and Snod Blatter), so good to put up the link you found to MikeP's (RIP) original post.

He certainly makes it look like a very straightforward job, but I quake at the idea of doing it in the deserts of southern Morocco! Crikey - I can't even keep sand out of a sandwich on a sandy beach let alone contemplate open final drive surgery in such conditions. Such were the skills and capabilities of the man.

Whilst I don't have play in my final drives (yet) I am heading into that milage zone and they are starting to sound louder when running which I assume to be the first indications of wear.


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Paul

"Heidi" K100LT 1991 (Grey) (VIN 0190172 Engine No. 104EB 2590 2213) - 5th owner. January 2014 (34,000 - 61,000 miles and counting....)
"Gretel" K100LT 1989 (Silver Grey) (VIN 0177324 Engine No. 104EA 2789 2211) - 4th+ owner. September 2015 (58,500miles and counting....). Cat C Insurancewrite-off rebuild Feb 17
"Donor" K100LT 1990 (Red) (VIN 0178091 Engine No. 4489 2024) - 6th & final owner (crash write-off now donor bike). June 2012 (73,000 miles) to November 2013 (89,500 miles)
    

4Back to top Go down    Re: Final drive bearing play on Sun Apr 08, 2018 9:13 am

Snod Blatter

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Hi Neal, welcome to the club. What mileage is yours at, out of interest?

I have just possibly made a huge mistake and watched this video, I think the only tools he uses that I don't have are an adjustable windy gun (no biggy) and the bearing puller with small claws. It all looks very possible, ooh-err...

There again, there's stuff like this. If I hadn't just replaced my shock I'd be tempted to go that way, look at all the extra stuff you get!


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1989 K100RS SE ABS 8v VIN: 0149214
Others: 1.5 x Honda CBX250RS-E, '94 CB250, '95 TRX850, '16 Z250SL
http://justbikethings.blogspot.co.uk/
    

5Back to top Go down    Re: Final drive bearing play on Sun Apr 08, 2018 4:48 pm

92KK 84WW Olaf

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First indication of wear is long before you hear it and you need to catch it at that point.

The bearing feel is the first clue, you can feel this before there is play. This was what I thought I was feeling and my friend confirmed it was on way out. Once you have movement you have already generated excess wear. When the bearing came out it was fkd but sure never felt anything like it while it was in there mostly because I hadn't lost the small amount of preload in it. It was replaced from the wheel side. We knew the other side was good because of the clutch job 8 weeks before.

If in doubt go in and do it, saves a huge amount of work if you get it early. Once there is play [this happens very fast]it chews the bevel drive, can very quickly break teeth and lock the final drive which is an instant off.


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1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 82,800 miles
    

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