Cracked Case Repair
Close
    
    
Results 1 to 7 of 7
Like Tree5Likes
  • 1 Post By admiral
  • 1 Post By Jaydub
  • 1 Post By plumbstraight
  • 2 Post By RoosterBooster

Thread: Cracked Case Repair

  1. #1
    Junior Member RoosterBooster's Avatar
    Join Date
    May 2015
    Posts
    2

    Cracked Case Repair

    Just picked up an all original 1987 that is quite clean. The only real issue other than normal stuff you would expect is that there is a crack in the engine case near the kick starter. Anyone have an experience / luck with repairing this? Thanks in advance.

  2. #2
    Senior Member admiral's Avatar
    Join Date
    Jul 2010
    Location
    Frosty Hollow
    Posts
    13,036
    Try the puddy stuff like "Quick Steel" or similar. Can be found near plumbing department in hardware store. I carry some when I ride. Lots of riders of all makes and models have cracked their side covers or punched a hole. I'm actually using some right now to help seal the left side cover gasket near the starter. I let it sit overnight after I applied it. It's been on since last October and no leak what-so-ever. And it's hard as a rock. Of course I'm not sure how easy it will be to take off when I need to take the side cover off. I'll probably have to re-apply it as my side cover is ok, but the engine case has a chip out of the surface area where the side cover gasket would seal up to it. Hey, it worked once it should work again.

    I can't remember the exact brand, but it looks just like this when open up.


    You can also get some metal JB Weld Epoxy. I haven't used this on the side cover, but have seen it applied. Not sure how long it lasts. I have used it to repair plastic gas cans with some success. Just doesn't work on a smooth surface very well, so you'll have to rough up the area pretty good unless the crack is big enough to hold it.

    Hope this makes sense.

    Of course I would consider these as temporary fix's.
    TWilight likes this.

  3. #3
    Senior Member Jaydub's Avatar
    Join Date
    Apr 2015
    Location
    SE Wyoming
    Posts
    112
    I've used a similar product called "water weld" by jb weld. It's a putty that has an inner and outer core that you kneed in your fingers to mix in the hardener. It works great! Can be had even at Wally World.
    TWilight likes this.
    Jay Dub

    Current rides:
    '01 TW200 bone stock
    '06 Honda CRF230F lighted & plated.(KISS where less is more)
    '01 BMW R1100RL with Russell "Day Long" saddle, Aeroflow screen, heated grips, throttle lock, modulating headlight & tail light.

    Previous rides:
    '87 BMW K100LT, '03 Honda XR650L, '95 Honda XLR250R "Baja," '71 BMW R60/5, '81 Honda CM400C "Custom," '82 Honda ATC 185S, '79 CR125 Elsinore, '79 KE175,
    various others I don't remember the models

  4. Remove Advertisements
    TW200Forum.com
    Advertisements
     

  5. #4
    Senior Member plumbstraight's Avatar
    Join Date
    Mar 2013
    Location
    Montesano, Washington
    Posts
    2,718
    JB weld is a fairly permanent fix. Just depends on where the crack is and how bad. If it is cracked through the hole for the kick starter shaft most likely won't do you much good. If just a crack in the case, I would take a three sided file and make a V and rough it up some with a good sandpaper before applying the JB weld. I have used it to great success before. It tends to want to let gravity pull on it so be sure to place the crack up and level. If not and you can get it applied, maybe a good masking tape might hold it in place while setting up. Figure a good overnight for hardening.
    TWilight likes this.

  6. #5
    Junior Member RoosterBooster's Avatar
    Join Date
    May 2015
    Posts
    2
    Thanks for the advice! I was thinking of trying the JB Weld. The crack is very narrow but it does leak some oil when the engine is running. I think I'll take a dremel tool with a carbide burr and rougn up the area good and probably grind a small groove in the crack. Then I'll clean good with acetone and apply the JB. I'll let you all know my results when done.
    Fred and Gerry like this.

  7. #6
    Senior Member plumbstraight's Avatar
    Join Date
    Mar 2013
    Location
    Montesano, Washington
    Posts
    2,718
    That should do the trick.

  8. #7
    Banned ZDR1's Avatar
    Join Date
    Feb 2014
    Location
    Arizona
    Posts
    4,030
    get the right JB for the job. JB Weld | World's Strongest Bond

Sponosred Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. Cracked Crankcase (L) 1996
    By Ben in forum Technical Help
    Replies: 5
    Last Post: 07-28-2014, 11:56 PM
  2. Cracked Crankcase... what next?
    By YeastLords in forum Technical Help
    Replies: 6
    Last Post: 07-14-2014, 04:38 PM
  3. Cracked Head
    By cbv123 in forum Technical Help
    Replies: 15
    Last Post: 03-22-2014, 10:22 AM
  4. Loose kickstarter and cracked clutch?
    By dustinaaron in forum Technical Help
    Replies: 2
    Last Post: 01-14-2014, 07:23 PM
  5. Cracked Spark Plug
    By RainWillFall in forum Technical Help
    Replies: 4
    Last Post: 05-28-2013, 07:09 PM

Search tags for this page

tw200 side cover - crack cick starter

Click on a term to search for related topics.