Engine cases + screwdriver damage - Fix or not?

[hadar]

I’m sure we’ve all seen it before. You pick up a bike or parts engine take it apart only to find the some backyard bucko has tried to split the cases using a screwdriver resulting in case damage. Can this unfortunate event in the engine’s history be fixed? What’s the best way? I got some t3 cases with slight screwdriver damage that I would still like to use if I could. The damage is minimal but still frustrating because apart from the jabs they would be good cases. Anybody got any suggestions?

[RedRider_AK]

Maybe just use some emory cloth, smooth out the gouges, and then use some gasket sealer as well as the paper gasket? It worked for me on my YZ80.

[hadar]

They just went hog nuts with the blue glue and it looked awful.(didn't even use yamabond in the middle.) I might try some of that quick steel gas tank patch stuff. Kinda like a mighty putty approach.:lol: It just sucks when you buy parts that have been treated so badly. 24 years old though so it could be worse I guess.

[Billy Golightly]

the cases on my flat tracker were warped and not level from some weld repair in teh counter balancer area. I applied a thin coat of JB Weld to the area, and let it sit for a bout a week. Then I used a file, a peice of glass, and some sand paper to get it back surfaced. It took a few tries but I got it to hold crankcase pressure even without a gasket.

[NINJA]

I ran into the same problem several years back and I know the steel epoxy will work if you clean everything well and take your time reshaping it. It has to be the kind that's more of a liquid than that stuff that you knead like playdough.

[hadar]

I like the peice of glass idea. I know jb can be runny but the damage is not that bad. Gonna stay away from the putty. Thanks for the tips, Sounds like it's gona work out just fine.