BigBird1
...it looks like it's blowing up past the bolt..
The case and plate both seem fine.
There is only about .040" between mount holes and the part of the plate going into the case. The gaskets on the new engines were cut without any attempt to seal that area. The older enginge had gaskets that had material in that area. I made new gaskets in the 'old' style and the engine had one of those installed.
Is anyone else getting this much 'blow by'? Never messed with 2 cycles much before, just knew they were messy and thought that crud was just part of their nature. Could put some hardening Permatex but did not figure it was necessary as manuf used nothing.
After pulling the engine 3 of the 4 mount holes had cracks from the mount hole going in towards the center cut out hole as well .
Could anyone using the mounting plate and stud columns furnish the column diameters, bolt sizes, and spacing pattern for the columns? Have some .25" 6061 Alum. that would make a H... for stout plate? Is this overkill?