I am having a strange issue with my 1998 Honda HRD536c lawnmower after replacing the cutting blade.
The issue:
Immediately after installing the new blade, the engine block completely seized/locked up when trying to pull the starter cord. I took the blade off and remounted it carefully. The engine now turns freely by hand, but when I start the mower, there is a deafening, metal-on-metal scraping noise.
What I have already verified:
Since this model features the Roto-Stop (Blade Brake Clutch / BBC) system, I suspect that something shifted out of alignment.
Has anyone seen this specific "visible central spring" variant before, and what usually causes this extreme scraping noise after a lock-up? Could a misplaced washer or woodruff key cause the clutch assembly to drag permanently?
Thanks in advance for your help!
The issue:
Immediately after installing the new blade, the engine block completely seized/locked up when trying to pull the starter cord. I took the blade off and remounted it carefully. The engine now turns freely by hand, but when I start the mower, there is a deafening, metal-on-metal scraping noise.
What I have already verified:
- The blade mounting bolts are not too long and are not catching on anything.
- The blade itself rotates freely 360 degrees by hand without hitting the deck.
- Before the blade change, the engine ran flawlessly and was completely quiet.
Since this model features the Roto-Stop (Blade Brake Clutch / BBC) system, I suspect that something shifted out of alignment.
Has anyone seen this specific "visible central spring" variant before, and what usually causes this extreme scraping noise after a lock-up? Could a misplaced washer or woodruff key cause the clutch assembly to drag permanently?
Thanks in advance for your help!
