914 flywheel vs a bus flywheel, any differences? Options

[malcolm2]

I sure can’t see any.

Building a 2.0 from a 1.8 from a 914 for my 72 bus that came with a 1.7. Have both flywheels. I did not label either. The 914 was running when removed so it must be the shinier one. The bus sat in a field for 10 years. So much moisture under there that the magnesium bell housing deteriorated.

Anyway, both are 210 mm. Some vendors say their 914 FW won’t work on a bus and visa-versa.

Anyone have more details?

[Mark Henry]

Bus came with a 210, 215 and the 228mm.
I know for sure the bus flywheels have a small pilot hole.

[malcolm2]

Bus came with a 210, 215 and the 228mm.
I know for sure the bus flywheels have a small pilot hole.

OK. I removed the pilot bearing of the above pictured FW and got the same diameter as the rusty on in the pic. I am pretty sure the bus engine had been out at some point.... 1. they painted the tins and valve covers. 2. looks like this rusty flywheel was re-installed without the thin 5 hole washer and the serrated bolts dug in. So maybe the PO put a 914 FW in with no FW pilot bearing or spacer.

Am I right about the years and the sizes of the FW? I did read where folks could not fit a 228 in a 72 bell housing.