facebook1 youtube1 twitter1 instagram linkedin1 pinterest1

NOTICE:  If you are not a free registered member of the site, you will not see the photos in the forum, and you won't be able to access our premium member content. Please consider joining our community! REGISTER AND MAKE THIS BOX DISAPPEAR!

×

Picture Attachment problem (09 Jul 2022)

Due to the extraordinary growth of the membership and resources, we are once again bumping up against hosting limits. I am working on a fix. In the meantime, the forum should function, but you won’t be able to attach images. Working as fast s we can to fix. Thanks for your patience. - Makotosun

Cracked case..what to do?

  • hcdiiiga
  • hcdiiiga's Avatar Topic Author
  • Offline
  • Senior Member
  • Senior Member
  • Posts: 46
  • Likes received: 25

Cracked case..what to do? was created by hcdiiiga

So I started taking covers off the engine and ran into this ugly mess. I knew the weld was there but not the crack. Pretty sure someone lost a chain because the countershaft cover was also cracked. I put oil in it and turned it to make sure oil would be over the crack, if it is actually getting to the crack. No oil, but off course that's not under any pressure. Looking at the epoxy, it looks like they covered the crack but didn't  put a stopper hole and the crack traveled down until it found one. So just put JB Weld and hope? or is that useless. I saw a case on ebay but I was really hoping I would not have to split cases. The case would have to be split for more welding wouldn't it? If I smack that bolt with an impact driver, that might be the end of it. The only thing that is a crack is line running from the epoxy to the top of the bolt, it doesn't run out from the bottom of the bolt, all those other things that look like possible cracks aren't.

Here is the weld.  That is NOT a crack running down from the hole in this pic

This image is hidden for guests.
Please log in or register to see it.



This pic shows the  crack running out the epoxy through the top of the bolt hole.

This image is hidden for guests.
Please log in or register to see it.









 
08 Aug 2022 14:21 #1

Please Log in or Create an account to join the conversation.

  • Posts: 534
  • Likes received: 262

Replied by Sneezles61 on topic Cracked case..what to do?

Epoxy is not part of the casing… aluminum welding may be the fix… but aluminum is as it is… one piece and it’s good..
It’s time to find a mate for the other side…
Sneezles61
08 Aug 2022 19:46 #2

Please Log in or Create an account to join the conversation.

  • MarkT
  • MarkT's Avatar
  • Away
  • Site Supporter
  • Site Supporter
  • Posts: 12574
  • Likes received: 7697

Replied by MarkT on topic Cracked case..what to do?

So hard to tell cracks on cases...  I several similar lines in your pictures...  are you sure it's a crack? 
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
The following user(s) Liked this Post: Ht1kid
Last edit: 09 Aug 2022 06:27 by MarkT.
09 Aug 2022 06:27 #3

Please Log in or Create an account to join the conversation.

  • MarkT
  • MarkT's Avatar
  • Away
  • Site Supporter
  • Site Supporter
  • Posts: 12574
  • Likes received: 7697

Replied by MarkT on topic Cracked case..what to do?

Maybe drain oil, hook up a bicycle pump to transmission vent, pump up to a psi or two and spray area with soapy water and see if it leaks?
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
The following user(s) Liked this Post: AirborneSilva, Ht1kid, msavitt
09 Aug 2022 06:30 #4

Please Log in or Create an account to join the conversation.

  • Posts: 515
  • Likes received: 278

Replied by Ht1kid on topic Cracked case..what to do?

MarkT that’s a great idea!!! I’ll remember that one for sure 
09 Aug 2022 06:52 #5

Please Log in or Create an account to join the conversation.

  • Posts: 66
  • Likes received: 31

Replied by Buggin on topic Cracked case..what to do?

I know with old magnesium VW motors you can use a gas torch to heat the suspected crack up a little and it if is cracked will temporarily open up with the heat. Maybe this can be tried with aluminum too?
09 Aug 2022 10:01 #6

Please Log in or Create an account to join the conversation.

  • Posts: 8572
  • Likes received: 3215

Replied by RT325 on topic Cracked case..what to do?

Great tricks MarkT, never thought of doing that. If it were me though--just me haha--I'd leave it alone & Not run the third screw in the cover either as always breaks out there when the chain breaks & bunches up.
10 Aug 2022 02:28 #7

Please Log in or Create an account to join the conversation.

  • hcdiiiga
  • hcdiiiga's Avatar Topic Author
  • Offline
  • Senior Member
  • Senior Member
  • Posts: 46
  • Likes received: 25

Replied by hcdiiiga on topic Cracked case..what to do?

The line from the epoxy is a crack, I can compress it and see it move, none of those other lines are cracks.
10 Aug 2022 03:59 #8

Please Log in or Create an account to join the conversation.

  • Posts: 1357
  • Likes received: 1023

Replied by 1971DT250 on topic Cracked case..what to do?

My local shop has TIG welded 2 of mine that were broken in the same area. The engine can stay in the frame but it is easier if the engine is removed.

Looks like yours was. Just may need a little more.
The hours spent riding my Enduros is not deducted from my life span.
The following user(s) Liked this Post: MarkT, Ht1kid
Last edit: 10 Aug 2022 04:39 by 1971DT250.
10 Aug 2022 04:37 #9

Please Log in or Create an account to join the conversation.

Moderators: yamadminEnduronutMakotosunDEETVinnieDevinJames Hart