Go Back   RCCrawler Forums > RCCrawler Brand Specific Tech > Heritage Crawlers > HPI Wheely King
Loading

Notices

Thread: WK Tranny Fix

Reply
 
LinkBack Thread Tools Display Modes
Old 07-10-2007, 11:39 PM   #1
06 Super National Champ
 
JasonInAugusta's Avatar
 
Join Date: Jun 2004
Location: Stark Industries Bar and Grill
Posts: 11,361
Default WK Tranny Fix

You guys are probably aware of the problematic clicking syndrome of the stock WK tranny.

Building a crawler for a guy and he wants to use as much of the WK as possible...

So I came up with a fix:

Disassemble the tranny and take apart the 22 tooth counter gear assembly.

Remove the "slipper" assembly and head for the garage.

Drill four 3/32" holes through both the gear and the slipper plate. Drill these holes from the gear side and center them in the gear.

Once you have drilled the four 3/32" holes, set the slipper plate aside and switch to a 1/8" bit.

Drill through the holes in the gear with the 1/8" bit.

Use four 3x6mm button head screws to re-assemble the gear and slipper plate. Since the holes in the gear should be 1/8", the 3mm screws will pass through the gear and thread into the 3/32" holes.

Re-assemble the tranny and use the compact lil' booger in your next build.

Smaller screws would work better, the screw heads on these 3mm screws deformed the shape of the gear just a hair and the tranny is notchy. A little trimming will fix that. ;)

See pics:
Attached Images
   

Last edited by JasonInAugusta; 07-10-2007 at 11:56 PM.
JasonInAugusta is offline   Reply With Quote
Sponsored Links
Old 07-10-2007, 11:54 PM   #2
I wanna be Dave
 
Join Date: Jul 2006
Location: Moscow Mills MO
Posts: 2,204
Default

nice tip I havent had the tranny apart yet, but mine just started "popping" yesterday for the first time. Will put this on my to do list.
SACCO is offline   Reply With Quote
Old 07-11-2007, 12:23 AM   #3
06 Super National Champ
 
JasonInAugusta's Avatar
 
Join Date: Jun 2004
Location: Stark Industries Bar and Grill
Posts: 11,361
Default

Here's a better option.

Install the screws from the slipper plate side. This way you don't have to worry as much about the size of the screw heads.

That means 1/8" holes in the plate and 3/32" in the gear.

3x6mm button heads work perfect here, but like I said earlier, if you have smaller screws they'll fit better...like a 2-56. I just used what was on hand.

I should mention that when you bolt the slipper plate to the gear you no longer need the slipper spring in the tranny.

That means no headaches on re-assembly.
Attached Images
 

Last edited by JasonInAugusta; 07-11-2007 at 12:28 AM.
JasonInAugusta is offline   Reply With Quote
Old 07-11-2007, 07:47 AM   #4
Quarry Creeper
 
Join Date: Nov 2004
Location: Mid TN
Posts: 411
Default

How long will those gears last without the slipper assembly there protecting things?
cotharyus is offline   Reply With Quote
Old 07-11-2007, 08:21 AM   #5
Pebble Pounder
 
Join Date: Nov 2005
Location: NHFF World HQ, TN
Posts: 139
Default

C'mon man! You know they'll last till they break!

BTW, where in Mid TN are ya? there are some rc crawlers starting to pop up in cookeville
TBItoy is offline   Reply With Quote
Old 07-11-2007, 08:28 AM   #6
I wanna be Dave
 
cartronicshn's Avatar
 
Join Date: May 2006
Location: HONDURAS...ROCK HEAVEN
Posts: 5,073
Default

Cool tip JIA , i started hearing that clicking noise from the slipper almost since new, and when i built it into a tuber with 14" wb and all t's it was to much for the slipper, it would click at almost any small bind, so i'am of to dissasemble the tranny.
cartronicshn is offline   Reply With Quote
Old 07-11-2007, 10:10 AM   #7
Quarry Creeper
 
Join Date: Nov 2004
Location: Mid TN
Posts: 411
Default

Quote:
Originally Posted by TBItoy View Post
C'mon man! You know they'll last till they break!

BTW, where in Mid TN are ya? there are some rc crawlers starting to pop up in cookeville
I'm just north of nashvegas, in the thriving metropolis of Ashland City.
cotharyus is offline   Reply With Quote
Old 07-11-2007, 10:35 AM   #8
20K Club
 
Harley's Avatar
 
Join Date: Jul 2004
Location: Sending illegals home one Hayabusa at a time.
Posts: 22,981
Default

Great mod JIA! It is a shame to put the little tranny to the side becuase of that little spring.
Harley is offline   Reply With Quote
Old 07-11-2007, 11:22 AM   #9
Rock Stacker
 
Join Date: Jun 2007
Location: Sacramento, CA
Posts: 71
Default

Nice tip ill be sure to pull mine apart today!
badtoy1986 is offline   Reply With Quote
Old 07-12-2007, 06:10 PM   #10
I wanna be Dave
 
Join Date: Feb 2007
Location: BFE, NV
Posts: 2,324
Default

Thanks JIA I have dealing with this annoying clicking since the WK's inception. I saw this thread and made the mod.. Works flawlessly. Now lets see what breaks without this safety feature..
frdtrkguy is offline   Reply With Quote
Old 07-12-2007, 10:43 PM   #11
Rock Crawler
 
JIA's Dad's Avatar
 
Join Date: Jan 2007
Location: Midway
Posts: 836
Default

For me it was the 15 tooth gear in the tranny (the smallest one). I stripped all the teeth off of it. Smooth just like taking a dremel to it. But I had just JB welded the slipper clutch. It was very hard to put the spring back in though. I Don't recommend using JB on this thing. Nice mod Jason!!!!
JIA's Dad is offline   Reply With Quote
Old 07-12-2007, 11:24 PM   #12
Pebble Pounder
 
Join Date: Apr 2007
Location: parked in a handicap spot
Posts: 193
Default

i also had the pleasure of stripping all the teeth off the top shaft gear. lol a while back i did this same mod to the clicker gear.. that was about 2 and a half months ago and i have yet to have a problem with it...
jeff jenkins is offline   Reply With Quote
Old 07-13-2007, 09:45 AM   #13
I wanna be Dave
 
Join Date: Apr 2007
Location: We-Go, Chi-Town, Ill
Posts: 2,550
Default

Is it posible to shim the stock spring or use a servo saver spring to to raise the point of "slip" in it instead of locking it?
BJoe is offline   Reply With Quote
Old 07-13-2007, 11:26 AM   #14
20K Club
 
Harley's Avatar
 
Join Date: Jul 2004
Location: Sending illegals home one Hayabusa at a time.
Posts: 22,981
Default

Quote:
Originally Posted by BJoe View Post
Is it posible to shim the stock spring or use a servo saver spring to to raise the point of "slip" in it instead of locking it?
The stock one is pretty stout for it size. I don't think you will have much luck. I would just get rid of it, throttle control is your friend.
Harley is offline   Reply With Quote
Old 07-13-2007, 05:28 PM   #15
Pebble Pounder
 
Join Date: Apr 2007
Location: parked in a handicap spot
Posts: 193
Default

i tried to use a different spring when i first got the wheelie king and it just didnt work very well.. the stock one is already pretty darn stiff.. dude trust locking it is a million times better i have yet to have any tranny problems with this setup and couldnt be anymore satisfied with it...
jeff jenkins is offline   Reply With Quote
Old 07-13-2007, 11:14 PM   #16
I wanna be Dave
 
Natedog's Avatar
 
Join Date: Jan 2006
Location: Corruptifornia
Posts: 12,107
Default

Quote:
Originally Posted by jeff jenkins View Post
i tried to use a different spring when i first got the wheelie king and it just didnt work very well.. the stock one is already pretty darn stiff.. dude trust locking it is a million times better i have yet to have any tranny problems with this setup and couldnt be anymore satisfied with it...
Yes. Great mod Jason. WK tranny gears are pretty cheap too.
Natedog is offline   Reply With Quote
Old 09-21-2008, 05:29 PM   #17
Quarry Creeper
 
Join Date: Jan 2008
Location: Calabash, NC
Posts: 348
Default

I simply removed the spring and replaced it with a shock spacer after I dremeled off the little "notch" part. Fit in there perfectly. I've been running it that way for about 4 months now with no problems....and no clicking!
Zod Rhombus is offline   Reply With Quote
Old 09-24-2008, 10:30 AM   #18
Pebble Pounder
 
Join Date: Jul 2007
Location: USA
Posts: 171
Default

Another thing I did before I got the CKRC gears was took the slipper apart and ran a bead of hot glue around and into the spring. Stopped the clicking, but would still give a (very) little in case of a bind.
Maggster is offline   Reply With Quote
Old 09-24-2008, 10:47 AM   #19
Rock Crawler
 
Join Date: Apr 2007
Location: St. John's
Posts: 548
Default

Quote:
Originally Posted by Zod Rhombus View Post
I simply removed the spring and replaced it with a shock spacer after I dremeled off the little "notch" part. Fit in there perfectly. I've been running it that way for about 4 months now with no problems....and no clicking!
Ditto!
SeanD is offline   Reply With Quote
Old 10-14-2008, 09:17 PM   #20
Pebble Pounder
 
Join Date: Jan 2008
Location: E. Concord
Posts: 179
Default

nice! ill have to tell a buddy about this fix. he has had problems with his wk tranny doing this
Scottish is offline   Reply With Quote
Reply



Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 09:54 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.
Copyright 2004-2014 RCCrawler.com