1937 "120" Flywheel Bolts

Posted by DJP-37-120 On 2020/9/22 20:44:50

I had my 1937 "120" engine rebuilt locally several years ago. I had a new ring gear installed on the flywheel and had it resurfaced, I've just realized that the shop never returned the bolting from the flywheel to the crankshaft and the shop is now out of business. I was able to purchase the correct 7/16 x 20 bolts from "Merritt" but since I didn't take this apart I was wondering if lock washers are needed on these bolts? My master parts list doesn't list any lock washers, the part number for the bolts is 300162. Just trying to avoid a future major problem. Thanks