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I thought I recalled Brian saying there was a hobby shop nearby. They should have tiny hose clamps, they use them a lot for Radio control stuff.

Bingo ! A roll of TPU isn't that expensive but Brian would have to get a 3d printer of find a friend with one.

Not your problem presently but that rotor square ends should be radiused similar to the way a cars rotor is. The square end will cause other problems (timing jumping around) later once you get by the no spark on one cylinder problem.

Wonder if a guy could 3d print some spark plug boots using something like the TPU flexible filament? I got the printer but none of that filament to give it a try.

Brian uses Solidworks which should have mates and motion capability as well as gear ratios. I have never seen him use that feature in any of his builds. (it is possible I missed a post or course)

Ok. Proportionally the head on the lifter is huge compared to the lift lobe on the cam. That will have a big effect on valve timing, greatly increasing the duration. I am sure you made them to the drawing dimensions. The ratio of the lifter head do the cam lobe just seems much much...

Is that drawing to scale? The cam lobe is dwarfed by the size of the lifter.

Any local junkyard and you could get a bunch of them dirt cheap.

Yes, for the 1/4 size spark plugs. Quick, easy and cheap.

You don't have to dive as deep as Brian did. Many/most skip the sandblaster and use a toaster oven. A spray booth isn't really needed either. I just put either a cardboard or a plastic sheet on the floor. The overspray is very very little due the the electrostatic charge. Far...

Your flywheels look great. Don't know about your red but some powder colors change significantly after being cured. The brass powder I have looks like pumpkin orange before cured and matches brass very well after curing. One I have not tried but want to is a clear powder. That...

Make sure your friend measures the voltage at the plug with the oven running on that outlet ! It is the load that makes the voltage drop. The more the load the more drop. All things proper the voltage drop is minimal with a load near the circuit rating. FYI 20amp circuit is 2400...

Brian, rockhann's suggestion of checking the voltage at the outlet was a excellent one. I will add that the voltage should be measured with the oven plugged into that outlet and operating. I have held a master electricians license since 1982 and can tell you that other electrical things...

I read similar reports of not hitting 400 in reviews of that oven. Doing that flywheel as your first ever powder coating adventure is probably not the best idea. You should so some scrap, a wrench or something just to get the hang of it first. I bet the over will cure the powder just...

I love the finish on the aluminum parts you bead blast. It prompted me to buy the blast cabinet I had been tempted with for years. A question.... after bead blasting the aluminum parts do you clear coat them or take any measures so they don't stain/mark with the oil from your hands and such?

What sort of pressure did you run for that first test? I read to start out at about 40psi. Higher than needed will just break the medium up into dust and fine particles wasting the media.

Very interesting. If we call the ring gap 12 o'clock it appears the light leakage is always around the 7 o'clock position. Wonder why that is???? Have you ever tried inserting a piece of paper in the stainless bag to consume oxygen ? (as it burns). I have seen many who do that to...

Ha ! I am at the same stage as you. I plan on using either glass beads or crushed glass for my first attack. I am not interested in removing heavy rust, paint or anything like that. Just don't use playsand or any regular sand, that is quite dangerous. That SOB Mayhugh1 building...

What do you plan on using for blast medium? You are very close to a first test run.

2" pvc works fine and it what many use. As long as it not glued if can come apart easily to dump the cyclone. (no need to glue) Just use long radius type elbows for good flow. If there is too much suction you can just open up a "bleed" port somewhere, drill some holes in the PVC as a...