Case beef up welding

There are innate weaknesses in 750 crankcases that Ken Canaga and Dave Comeau mentioned and then discovered in past Peel cases. Extremely fine to find but DynoDave did, which increased my awe of his powers of observation. Then my welder freaked me out by melting extra deep into case bolt flange stress risers to show me the hidden fractures that had not yet surfaced, ugh. We are talking half evaporated cob web fine wrinkly line at edge of unaided human resolution = almost imaginary dark contrast line. It injured me to beat the case seams back to seal. But cases are still fine after tolerating stuck throttle event that bent or broke the major and minor moving items inside and out. Greg Fauth asked for Peel's example so here's his preventive work to display. Now he's got a place to drill flanges for an 11th clamp bolt at a weep prone seam like Ms Peel.

HI Steve. I thought you might like to see another case with the gusset's. Thanks for your pics. Just a little warping .008 or so on the case side far away in this photo right at the gusset weld so near the joint. These cases will be made into a racerin the 600cc AMA classic 60's class also know as Bob Goodpasters class.

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Will you be beefing up the driveside bearing boss from the outside like Ken does?

Nice Effort . :wink: Good Start . I think Dean had the new flange right round , and again at the mains , and gussets
across between in profusion . The brain boggled at the weld time , distortion possibilities .

At a certain point itd pay to get a new one , or ballance the motor . :lol: Maybe he intended it to contain explosions . ?

Dunno what improvement high grade alloy pressure die cast std. issue would be .

Its Greg's project so don't know what else is planned, just we've seen the DS round plate beef up but mabye not this rear/upper double plate beef up across the famous horizontal fracture zone of Norton over raced cases. I'll ask Greg as always interesting to see a plain Jane Norton messed with to get away with more.