scskydivin
SCCoA Member
So, my HB bolt broke off, again.
It's a BHJ. I've had it on for 8 years. The motor has been rebuilt 6 years ago. New pistons, rings, & bearings. Crankshaft, camshaft, and connecting rods all checked & cleaned. Heads were rebuilt & resurfaced. The odometer stopped at 232,000 2 years ago. It's still my daily driver. Car has ran fine.
A month ago, the hb bolt backed out & broke off. I replaced the bolt with a new one and went on my way. No lock tight on the threads. I also didn't get under the car with a screwdriver in the flywheel to stop the motor from turning when I reinstalled it. That was a dumb move on my part. So, this morning when I heard that "clunk" and seen the bolt bouncing on the road behind me, I knew what had just happened. Lucky me, I've got a spare new bolt on the shelf here. I decided I was going to do it right this time. Got the lock tight, and i crawled under the car to hold the flywheel still while tightening the bolt up. Guess what I noticed? The BHJ has an 8th of an inch to go on the crankshaft and I can wiggle it by hand, easily. I can pull the BHJ off the shank with a little effort and put it back on the crank. All the way to an 8th of an inch to go. I've also noticed the key way in the BHJ is slotted, with 2 different sizes, one bigger than the other. The pictures I've found on here have all shown the keyway as one size all the way across the hole. I'm startin to stress here a bit. Any one have any insight?
It's a BHJ. I've had it on for 8 years. The motor has been rebuilt 6 years ago. New pistons, rings, & bearings. Crankshaft, camshaft, and connecting rods all checked & cleaned. Heads were rebuilt & resurfaced. The odometer stopped at 232,000 2 years ago. It's still my daily driver. Car has ran fine.
A month ago, the hb bolt backed out & broke off. I replaced the bolt with a new one and went on my way. No lock tight on the threads. I also didn't get under the car with a screwdriver in the flywheel to stop the motor from turning when I reinstalled it. That was a dumb move on my part. So, this morning when I heard that "clunk" and seen the bolt bouncing on the road behind me, I knew what had just happened. Lucky me, I've got a spare new bolt on the shelf here. I decided I was going to do it right this time. Got the lock tight, and i crawled under the car to hold the flywheel still while tightening the bolt up. Guess what I noticed? The BHJ has an 8th of an inch to go on the crankshaft and I can wiggle it by hand, easily. I can pull the BHJ off the shank with a little effort and put it back on the crank. All the way to an 8th of an inch to go. I've also noticed the key way in the BHJ is slotted, with 2 different sizes, one bigger than the other. The pictures I've found on here have all shown the keyway as one size all the way across the hole. I'm startin to stress here a bit. Any one have any insight?