I'm hoping there's a few experts out there. It's a great lawn mower that I've had for years. The drive pully finally let go so I was forced to replace the pulley and the belt. The clutch mounting bolt would not come out. Once I used a puller to remove the clutch assembly from the crank shaft I found out why. There was a little snap ring that prevents the bolt coming out of the clutch. I need a replacement bolt; can someone point me in the right direction? Thanks
Thank you Ken, what I have since found out by looking at diagrams the clutch is not John Deere. I also found a label on the underside of the clutch that shows Warner Electric.
Since you haven’t posted a picture, it’s hard to understand what exactly you’re looking for. If the part you want isn’t listed in any of the 3 diagrams on this page, a new clutch is around $250… but, you may be able to find a used unit on eBay you can scavengerize, now that you know how to take it apart.
Ken, by far the best site, thanks for sharing. As I looked further into the condition of the clutch both bearings need replacement, and it appears the clutch may be worn thin, and the plates are hitting and have been for a bit. You can see the bolt cut into 3 pieces. 10MM bolt with a shoulder and snap ring . A few pics.
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Here is your problem. The part is not available. Many years ago JD used an one piece Warner BBC clutch then Warner changed to a two piece version and dropped the one piece unit. Two make things worst there two designs of the two piece unit.
Here is how to id which you have along that since 1995 the one piece has been no longer available.
The only option is to replace the clutch assy and special bolt with the correct clutch assy.
Thank you for taking the time to share the configuration changes from over the years of the clutch (and crank). I was wondering if the Warner was an OE item or aftermarket, now I know. I would think the one piece would be a much easier clutch to install as this 2 piece was a bit of a challenge. Once again great info, have a great day Sir.
I've owned my JD 14SB since 1990. Great machine. Starts on second pull every time. I currently use it for edging about 1/2 hr per week.
I replaced the original Ogura Blade Brake Clutch in 1999 with Warner Clutch Replacement Kit p/n AM121452. It seems to be "that time" again. Today, the cost of the OEM part is almost what I paid for the machine when new, so I'm looking into other possibilities.
Option one: I haven't pulled the clutch off recently, but I'm almost certain that I have the woodruff key in crankshaft design. Based on what I can read, I'll need to buy the part with the slot and use my existing woodruff key(s). Can you help me with the right Warner part number? I'm mostly seeing 5916 which seems to have the integral key.
Option two: I don't seem to have any bearing noise (or my hearing is shot!), so I'm wondering if I could just replace the clutch disk. I did find that part on ebay as "John Deere 12PB 12PC 12SB 14PB 14PZ 14SB. Replacement Blade Clutch Lining ONLY". (Yes, I'd make sure of the bearing status before doing that.)
Option three: Last choice would be to buy the 5916 part and mix/match the parts from my current clutch that are woodruff key specific. Is that possible?
I'm hoping to get another 10 years or so out of this mower, so your help and ideas are greatly appreciated.
Mine has the woodruff key on the crankshaft, so I can't use the adapter with the full length key. I see a full length key in photos of the GY20805. Was this key removable, or was your crankshaft fully slotted. Thanks for the clarification!
A follow up... my issue didn't require any new parts! I flipped up the mower to take the blade brake clutch off and found that the center bolt (8 mm allen head) had all but fallen out of the crankshaft. I pulled off the blade, removed the last few threads holding the center bolt in place and everything else (i.e., bearings and clutch face) looked fine. I could see where the RED locktite had been applied 25 years prior, but wasn't holding any more.
I cleaned everything up, applied fresh locktite, tightened the center bolt and am back in business.
