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1200A Bunker Rake Shudder under load
Thanks to those who helped me resold the bolt issue on the driven. Since repairing it, and replacing the belt with an OEM part, I still have not resolved the issue that caused me to look under the hood. The machine shudders and labors when I first start giving it gas. It smooths out some as it begins to pick up momentum. If someone could checkout these videos, I would appreciate help with diagnosis. The noise seems to be coming from the secondary, but I did see flat spots on the rollers of the primary.
One video show WOT parked, the other shows the shudder while driving.
https://www.youtube.com/watch?v=4qol9RFdP2w
https://www.youtube.com/watch?v=Mb2EsU1ZPvs
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1200A Bunker Rake Shudder under load
Is there a way to imbed video on this board?
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1200A Bunker Rake Shudder under load
Hmm, okay I will start at the secondary. I wonder if spring pressure is too light causing the moveable sheave to open and up shift too soon. Not entirely sure I have that right.
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1200A Bunker Rake Shudder under load
I checked the primary agains and snapped a pic. Can someone tell if this condition might cause the shudder? Thank you again?
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1200A Bunker Rake Shudder under load
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1200A Bunker Rake Shudder under load
Was also wondering about the gap between belt and sheave. Is this acceptable? Thank you.
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1200A Bunker Rake Shudder under load
Excellent. Thank you Gatoraider.- funny, I didn't even realize they were grooved, not having messed with these before; My eyes only "saw" the flat spot. Quite obvious after looking at rebuild kits online. I see several kits around for rebuilding similar clutches (EPI, other snowmobile sources), but they don't seem to have cross references for Deere. Another puzzling matter is the spanner price, considering a similar Briggs unit costs around $8.00. The cost of a new spider is around $150.00, the kits being around $60.00 if I can find the right match. Considering Time to make the removal tools and do the job, can't decide if worth it, other than the enjoyment and satisfaction of fixing over replacing.
Decisions, decisions.
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1200A Bunker Rake Shudder under load
Duh, just realized I have to make the spanner, or buy one, either way.
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1200A Bunker Rake Shudder under load
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Quote:
I think the post in the link below addresses your issue about the process and tools needed to service the primary clutch. ...
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Thank you for the link, JLM. I did happen to read your thread last night, and was going to use your specs for the tools. I have a small milling machine at home, so if I can figure out a way to hold the part, I will fabricate the spanner. Any idea how much I will need to remove from the sched. 40 steel pipe inner wall? Wondering if I can use a flex hone, or if I will need to use a boring bar.
Thanks for your time.
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1200A Bunker Rake Shudder under load
Say, any good sources for roller kits for this clutch?
I saw a site called the gator guy who listed rollers. Any experience?
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1200A Bunker Rake Shudder under load
Hmm, okay I will start at the secondary. I wonder if spring pressure is too light causing the moveable sheave to open and up shift too soon. Not entirely sure I have that right.
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1200A Bunker Rake Shudder under load
I got the clutch apart today, and found the weights to have a lot of play. As you can see below, there is a deep groove in the pivot pin. I assume that's out of tolerance and needs to be replaced. My thread guage got carb cleaner on it and I don't know the thread for these pins. I think it's 10-32, but not sure. Also, there seems to be a boss for a seat of some kind under the spring, but I didn't see one, other than some debris falling out of there. Also, the pins for the rollers are slightly marred, bit I'm thinking they are still useable. Any thoughts appreciated.
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1200A Bunker Rake Shudder under load
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1200A Bunker Rake Shudder under load
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