Whatever!!!!!!!!! Gearhead-EFI Edition

[dave w]

Well, I found about a foot long peice of thick wall tubing that fit the crank real close. Using my dial indacator, I got the bend pointing up. I then put the pipe on the crank, then put a crow bar in the other end, sat on the end of that, and took a short handled 5lb slege hammer and hit the end of the crank. After lot of banging, measureing with the indacator, I was able to get it down to .003 out. Pretty dang close. I knocked the flywheel/pulley back on it and gave it a go. It still has a very slight wobble, but I think it shouldnt hurt it for the light home duty I will be using it for. Now if I was using it for a shop that would be a different story.
I ran it and found a leak on the outlet reducer busing, had to remove that and reseal. Also found the unloader valve is leaking when its running. Its a brand new switch. So I contacted the seller and they are supposed to be sending a replacement unloader.

I've had SBC cranks straightened by machine shops that have crank grinding equipment. Maybe in the near future you can get your compressor crank professionally straightened?

dave w

[JeepsAndGuns]

I've had SBC cranks straightened by machine shops that have crank grinding equipment. Maybe in the near future you can get your compressor crank professionally straightened?

dave w

I am going to keep a close eye on it. There is no play in the bearings right now. If I feel any start, I will stop, disassemble and check my options. Either try and find a shop to straighten it, or replace. But I am thinking with the light duty I will be using it for, it might not run enough to hurt anything. It spins relatively slow. Using a pulley calculator online, it puts the compressor at about 775 rpm. Owners manual say max of 1000 rpm, min of 400 rpm. Now if it was spinning near max rpm, or I was running it all day every day, it would be a different story.

[1project2many]

Now if it was spinning near max rpm, or I was running it all day every day, it would be a different story.

If you calculate the amount of energy stored in that flywheel you might just change your mind. A 50#, 14" diameter flywheel rotating at 775 rpm that got loose would accelerate to 32.28 miles per hour and would make contact with an object with over 3 hp at the OD.

[EagleMark]

You forgot to mention all the damage?

[1project2many]

Like this?

Amoskeag_Flywheel_Explosion.jpg

I also didn't mention the 5900 lbs of centrifugal force that comes into play if it breaks when hitting the floor.

Don't f#ck with spinny sh!t.

[JeepsAndGuns]

Its a hair over 14 inch, but far from 50 lbs. I would say closer to 10-15 lbs if I had to guess. Its lighter than it looks.

[1project2many]

:)

Still 32 mph but the force values are lower.