Speedometer Drive?

Production K Models

Re: Speedometer Drive?

Postby Lisa » Mon Feb 26, 2018 10:08 am

Never heard one doing that but heard of a lot of bearing housing failures causing destruction.
Lisa
 
Posts: 129
Joined: Sun Apr 30, 2017 3:57 pm

Re: Speedometer Drive?

Postby EKHKHK56 » Mon Feb 26, 2018 10:27 am

Ah, yeah that would be bad. I hadn't heard of that in particular. Thank you Mike.
User avatar
EKHKHK56
 
Posts: 920
Joined: Fri Apr 18, 2014 5:20 am
Location: Fairbanks, Alaska USA

Re: Speedometer Drive?

Postby Mayday53 » Mon Feb 26, 2018 12:52 pm

So if it is common for the gear to be broken, missing, not working, or folks remove them to prevent other damages, does that mean most folks drive without a working speedometer?

I ask because my project bike did not have a speedometer, one of my yet-needed finds, and I have not looked closely at the drive yet.
"Mayday"

"Respect is given, disrespect is earned"
User avatar
Mayday53
 
Posts: 288
Joined: Mon Feb 02, 2015 5:50 pm
Location: North Dakota

Re: Speedometer Drive?

Postby mikeslemmon » Mon Feb 26, 2018 1:55 pm

the speedometer drive problem is so common that Trock made a piece that could be welded in to the damaged part of the right case
the factory offered a rearwheel speedo drive they moved the speedo drive to the front wheel in the '70s
it's a common problem the company knew it AMF fixed it
mikeslemmon
 
Posts: 144
Joined: Sat May 24, 2014 11:36 am

Re: Speedometer Drive?

Postby Mayday53 » Mon Feb 26, 2018 9:59 pm

I was thinking about this today. When I got the bike, barn find, it had a cracked case and a crack in the trap door...I wonder if these all could be related...hmmmm.
"Mayday"

"Respect is given, disrespect is earned"
User avatar
Mayday53
 
Posts: 288
Joined: Mon Feb 02, 2015 5:50 pm
Location: North Dakota

Re: Speedometer Drive?

Postby starcain » Wed Feb 28, 2018 11:33 am

This '52 or '53 right case is on ebay right now. I'ts a good example of what a speedometer drive blowout can look like.
Attachments
s-l1600 (2).jpg
s-l1600 (2).jpg (228.49 KiB) Viewed 11600 times
s-l1600.jpg
s-l1600.jpg (232.68 KiB) Viewed 11600 times
s-l1600 (1).jpg
s-l1600 (1).jpg (229.03 KiB) Viewed 11600 times
User avatar
starcain
 
Posts: 301
Joined: Mon Jul 14, 2014 10:13 am
Location: Bellville, Ohio

Re: Speedometer Drive?

Postby Mayday53 » Wed Feb 28, 2018 12:42 pm

Looks familiar! :-)H
"Mayday"

"Respect is given, disrespect is earned"
User avatar
Mayday53
 
Posts: 288
Joined: Mon Feb 02, 2015 5:50 pm
Location: North Dakota

Re: Speedometer Drive?

Postby thefrenchowl » Wed Feb 28, 2018 12:53 pm

The KR proper answer to this problem!!!

Image

Image

This KR blank was on my 55 KHK...

Patrick
Flat Head Forever
https://web.archive.org/web/20071011184353/http://www.harleykrxlrtt.com/index.htm
I'm the one who has to die when it's time for me to die so let me live my life the way I want to...
thefrenchowl
 
Posts: 611
Joined: Sun Jun 28, 2015 4:33 pm

Re: Speedometer Drive?

Postby wz507 » Wed Feb 28, 2018 1:00 pm

Saw this in a recent V-Twin catalog.

case repair.jpg
case repair.jpg (22.48 KiB) Viewed 11593 times
User avatar
wz507
 
Posts: 356
Joined: Fri Dec 11, 2015 9:13 pm

Re: Speedometer Drive?

Postby EKHKHK56 » Thu Mar 01, 2018 12:49 am

I have quite a few high mileage cases that are perfect there. My OP 52 has 16,000 miles and I know the aircraft mechanic used to ride it hard. I still think if everything is in spec it is the Countershaft right bearing that fails first or bearing boss breaks off because it is only supported on one end that causes the stacking and breaking of cases due to gear bind. I think Mr Speedo Drive is an innocent bystander that gets blamed because it was there. :roll: Just my idea after seeing and repairing cases. I would run one with a stock bike , with correctly built trans. No extra play. Anywhere
User avatar
EKHKHK56
 
Posts: 920
Joined: Fri Apr 18, 2014 5:20 am
Location: Fairbanks, Alaska USA

PreviousNext

Return to K, KK, KH, KHK

Who is online

Users browsing this forum: No registered users and 13 guests

cron