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Crankcase Repair
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27-12-2020, 07:13 PM
What are peoples thoughts in the best way to repair a crankcase? This one looks like it's been repaired in the past, unsure if it's still holding but have it in a diesel Bath at the moment to clean it all and will give it a better inspection.
If you're really determined to keep going with that one John I guess a skilled welder could sort it out.
In the old days it would have been patched most likely with a plate and a few bolts (after drilling out the ends of the cracks and removing anything liable to come loose). That's a fair big area to patch though. Given that it already has a large welded repair I think you need to be mindful of potential distortion / alignment issues; and look carefully for other damage you may not have spotted yet.
27-12-2020, 07:35 PM
I'm not sure if this is a joke or not.
I'd have thought that there were many good crank cases out there for relatively little cost. Mr Betts always has a few on his website. This one is significantly worse that the one I was considering chucking out. Just my 2 pence worth. Peter
27-12-2020, 08:22 PM
Cost of repair will far exceed cost of a replacement, I wouldn’t bother.
As said good used are readily available. 
27-12-2020, 08:23 PM
I agree with Peter but if you've some great need to have it repaired, laser welding would be the best option as it wouldn't lead to any (further??) distortion. However, the cost is likely to be greater than the cost of a replacement crankcase.
If you do decide to scrap it, please let me know as I know someone who's looking for some crankcase feet to repair (by laser welding) a crankcase he's particularly attached to that's had them removed. Steve
What has been happening to that crankcase? The somewhat rough welding visible in the photo and the big cracks, what do they indicate and what should the rest of us look out for?
28-12-2020, 10:29 AM
Steve, I think the old welding is quite neat. I must have very low standards.
Dave. 
28-12-2020, 03:47 PM
(This post was last modified: 28-12-2020, 03:48 PM by Nick Turley.)
Steve
Which feet is he after ?
28-12-2020, 03:52 PM
(This post was last modified: 28-12-2020, 04:25 PM by Steve Jones.)
Good question, Nick. I'll find out.
Steve Edited to add: Sent you a PM, Nick. |
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