Topic: Crank case bolt holes broken

[MadDogCanada]

 I'm a bit annoyed I didn't notice this before buying it.
Anyone got an opinion if this will be a major issue or how it's fixable thx.

Plan on bench testing the bike this weekend.
will check top end gaps,rough balance the carbs and chuck some oil/fuel in it and see where it leaks... from everywhere most likely.

Feel free to post any comments or tips on fastest cheapest way to get this thing running

[Jerry Rxman Griffin aka MuthaF'er]

Could be bad. Leaking any oil there or between the case halfs? Is it running? Make any strange crankshaft noises? Could require a fresh set of crankcases if you answer yes or some serious welding. If you answer no then reinstall the points cover and look the other way.

[MadDogCanada]

its out of the frame, looking to do a bench test and play around learning about the engine.  guess I'll find out pretty soon.
anyone use J weld or helicoil on something like this.?

[Terry in Australia]

Fark, I've never seen damage like that before, how could that have happened, did it get dropped into an angle grinder factory?

That case bolt needs to be torqued but if it's not leaking then you need to make a decision, can you just fill the void with JB weld, replace the bolt with minimal torqueing and hope for the best, or buy a good, undamaged top and bottom case, and transfer the guts.

Obviously the latter is the better solution, and probably what I'd do (although you could try dropping the bottom case and taking it to a really good welder to build up the missing material) but of course, it's up to you. Please accept my sympathies............

[MadDogCanada]

I know, I never even thought to look for something like that. it should have been protected by the frame. someone must have pulled it out and dropped it. looking at  local welders to get their opinion. then JB weld. then will look for case (not easy up here. or just say frick it and get another engine....

[Terry in Australia]

Well another engine is probably the best option mate, then you can just use your old one for spares. Cheers, Terry.

[BomberMann650]

Well another engine is probably the best option mate, then you can just use your old one for spares. Cheers, Terry.

Never a bad idea either way.

[PeWe]

I see a cracked case. Maybe an accident. Frame, fork straight?

[Rocky2010]

Looks like its hit something or someone has dropped that engine. it could be welded but you would have to completely disassemble the engine.
Or just turn it upside down remove all the engine covers then split the cases removing the bottom crankcase and get it welded.

[calj737]

Instead of JB, or instead of welding, you can have those areas repaired (even the threaded hole) using HTS2000 rods. They're quite suitable for this exact use, and afterwards you can drill and tap the hole with proper threads. You can shape the repair on the case seams too for flatness or original contour. Worth the effort versus the engine transplant. And they're much more forgiving than welding aluminum.

[firebane]

Someone good with Tig would be able to weld that up.. not perfect but weldable for sure. Cost maybe a bit much though especially for all the work to be involved.

[BPellerine]

someone most likely shoved the damaged engine in there to sell it,you would have to hit a rock or something to do that,but dropping it when it is out of the frame is likely culprit.bill

[754]

 I have seen a few like that. Accident damage.
I think a parts motor should be available for 250.00 or less..
 What part of AB exactly..?
 Welding, if careful you could do it with engine together.. But Try running it first, see if its worth it. Kick over and check the center stud holding the advance on, before starting...may need straightening.

[MadDogCanada]

What part of AB exactly..?
 Welding, if careful you could do it with engine together.. But Try running it first, see if its worth it. Kick over and check the center stud holding the advance on, before starting...may need straightening.

I'm up north of Athabasca country.
I just set the engine up on a stand and looking at what parts i'll need to see if it'll turn over.

are you saying to take the point off and check out the advance behind it... or the front nut in front of the points?

need all the help I can get with this project. missing lots of parts. parts in wrong places ect.and i'm a noob..
cheers

[ekpent]

 The points plate is held on by a small size steel rod that has the small nut attached inside the larger nut you will notice. That shaft can be bent pretty easily in an accident etc.

[754]

It would have been easy to try starting in the frame.  Now you will need to make a bracket to hold up oil bucket.  Is the E starter in it still?
 Might be able to get a few parts, but, I would keep an eye out for a motor.
Try a craigs or kijiiji ad, there usually is non runners around..

[PeWe]

Stoned PO rider hit a stone? Those vegetarians......