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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: Ar1100s on February 25, 2016, 10:39:18 AM

Title: Transmission removal
Post by: Ar1100s on February 25, 2016, 10:39:18 AM
Could someone redirect me to the video or info steps I need for transmission removal so I can lube the spline on my 1985 k100?
Thanks
Title: Re: Transmission removal
Post by: Laitch on February 25, 2016, 11:08:00 AM
Google: chris harris spline
Title: Re: Transmission removal
Post by: rbm on February 25, 2016, 12:08:19 PM
http://www.kbikeparts.com/classickbikes.com/ckb.tech/0.ckb.tech.files/splinelube/splinelube.htm
Title: Re: Transmission removal
Post by: Ar1100s on February 25, 2016, 01:56:07 PM
Thanks!
Title: Re: Transmission removal
Post by: WayneDW on February 25, 2016, 08:27:54 PM
http://www.kbikeparts.com/classickbikes.com/ckb.tech/0.ckb.tech.files/splinelube/splinelube.htm
Thanks for that link.  For some reason my bookmarks to Duck's articles went nowhere.  Glad to see they are still available.
Title: Re: Transmission removal
Post by: Ar1100s on February 26, 2016, 08:33:53 PM
Updating Options!
Title: Re: Transmission removal
Post by: Laitch on February 27, 2016, 01:08:24 AM
Two things I wanted to add. When I removed the final drive I was left with the drive shaft still connected to the transmission. Mr Harris in his video does not say that you need to pry it from the spring clip to remove it.
The driveshaft doesn't need to be pried from its clip. If the swingarm is removed, grasp the driveshaft firmly, jerk it rearward and it will be released. If the swing arm is still installed, a vicegrip clamped on the protruding portion of the driveshaft and then smacked rearward with a mallet will also release it.

Second on the list is how I made my guides which are necessary to keep from bending the clutch rod.
The bolts needed to secure the transmission are 8mm 1.25. I purchased two 4" 5/16's bolts then cut off the heads. You can partially thread these bolts in the transmission mounting holes but be careful as they are standard threads. Just enough so they will stay put when you remove the transmission.
I don't recommend this procedure because it relies too much on luck. If guide pins are made for removal of the transmission, their threads should be of the same diameter and pitch as the threads in the engine so they can be threaded securely—not "partially"—into it. Coupling these parts with threads that don't match could lead to cross-threading and then to extra time and cost to repair damaged threads in the engine. Correctly-sized bolts are not costly. If they're not available locally, send away for them.

Clamping threaded portions of a bolt in the hard jaws of a vice could damaged them then they could damage whatever threads are receiving them.
 
Title: Re: Transmission removal
Post by: The Mighty Gryphon on February 27, 2016, 09:54:58 AM
+1 on the bolts.  While Home Depot and Lowes don't have them yet, most good hardware stores will have the metric bolts you need to support the transmission.  You will find them in those flat boxes that slide out like drawers.  They will set you back about $1.80 each if I recall.  Cheap insurance for your engine cases.
Title: Re: Transmission removal
Post by: Ar1100s on February 27, 2016, 01:42:39 PM
Great ideas, thanks!