Flywheel timing mark wrong on HUP

[Jordan Baker]

The doesn’t specifically address your questions but maybe it does. Regardless this is an excellent reference website dedicated to the Chevy inline 6 engines.

This article is about timing
http://devestechnet.com/Home/StoveboltTiming


This one is about flywheels.
http://devestechnet.com/Home/Flywheel

When I setup my engine I referred to these and it started fine on the first try.

[maple_leaf_eh]

Malcolm, would you like one of us to speak to Jeremy. He's had you performing miracles on the Centurion alot, asking really detailed questions about the twin diesel Sherman lately, and now fussing with a HUP. Surely you're not the only smart wrench at the Museum?

[Malcolm Towrie]

Originally Posted by maple_leaf_eh

Malcolm, would you like one of us to speak to Jeremy. He's had you performing miracles on the Centurion alot, asking really detailed questions about the twin diesel Sherman lately, and now fussing with a HUP. Surely you're not the only smart wrench at the Museum?

Terry, no, I'm not the only wrench at the museum, BUT I'm retired, I live on my own (so come and go as I please), and I LOVE working on this stuff. So I can spend a LOT of time there!

Malcolm

PS: the only time I use the stove is to boil oil and brake fluid out of brake shoes and pads at 450 deg. F. I have to stash the smoke detectors in the fridge. See the advantage I have?

[maple_leaf_eh]

Glad to hear the Museum work is a still challenge and lots of fun. Keep smiling and doing what you like best.

[Malcolm Towrie]

Thats some good info, Jordan!
Especially the pic of the flywheel:

Flywheel pic.jpg

I zoomed in and took some measurements. Looks to me like the bolt/dowel cluster spacing is not symmetric, which is what I would expect to ensure flywheel can only be mounted to crank one way.

The info also confirmed I used the right peep hole for the timing. So I suspect a mistake was made during flywheel manufacture. Anyway, it is what it is and engine runs fine.
Malcolm