used a light duct tape to mask off sealing surfaces and traced the grooves with a exacto.
I used a medium abrasive in a portable bucket sand blaster at 120psi to clean my stuff up. Then hit it with some 2+2 break clean and the air hose. Works ok if you don’t have a full setup.
Using JB weld here to reinforce. I won’t be hogging the cases out to the point of removing the metal entirely but it’s going to be thinner. The epoxy will never see fuel as I personally would not expose jb weld to fuel long term. I like to use the heat gun to make the epoxy run easier and work the bubbles and air out with a screw driver. Once it starts to set up I will smooth it out real nice then run a razor over the cases to remove excess.
Started working on the cyls in the mean time. I have a cheapo right angle air grinder I like to use to clean up the casting and get my angles correct so when I remove the sleeves I have a better idea of what’s going on.
Pic attached shows the indent where I ground the excess casting out on the side. When the sleeves are pulled I will even this out and slightly taper the transfer casting(s) from the bottom up. I will also fix the horribly crooked port edges and chamfer.
Pic of mini Grinder.