Price for BCS 605 with Tiller

   / Price for BCS 605 with Tiller #11  
That's a new one on me. I never would have thought you could run flat with tapered. I don't think you're supposed to.

I don't think your 605 is a mutt. It's a normal late model 605.
 
   / Price for BCS 605 with Tiller
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#12  
That's a new one on me. I never would have thought you could run flat with tapered. I don't think you're supposed to.

I don't think your 605 is a mutt. It's a normal late model 605.

I appreciate your feedback on this. I never realized mine was not a tapered 3 dog PTO until I cleaned the grease off to take pictures today. Is the internal PTO engagement of the 850 and newer tractors better than the old spline style?
 
   / Price for BCS 605 with Tiller #13  
The tapered 3 dog PTO is a little bit stronger, but the external spline / flat 3 dog PTO is easier to fix if something goes wrong. Grillo still uses the same internal spline PTO that both BCS and Grillo used all the way back in the 70's. It's a perfectly fine system for many attachments, but it's not as robust for the largest and most power hungry attachments that have come out in recent years. The Grillo G110 introduced last year has a stronger PTO to accommodate these attachments.
 
   / Price for BCS 605 with Tiller
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#14  
FBB, I know you've used a variety of wheel/tire sizes over the years. Are the larger 22 or 23" tires acceptable for tilling and snowblower work?
 
   / Price for BCS 605 with Tiller #15  
Larger tires hurt the tiller when used for breaking ground. With stock tires, the tine turn 20 times per tire rotation. Bigger tires increases ground speed, which lessens the ratio. They also changes the angle of attack, which increases the amount the engine tips, possibly causing trouble for a splash lube engine. I don't know of any engines that have blown up because of this. Pressure lubed engines have more tolerance, but I am not aware of a pressure lube engine available for a BCS right now (except diesels). Your V-twin might be pressure lubed - Does it have a filter?

They seem to be fine for snowblower work as well as most other attachments.
 
   / Price for BCS 605 with Tiller
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#16  
Larger tires hurt the tiller when used for breaking ground. With stock tires, the tine turn 20 times per tire rotation. Bigger tires increases ground speed, which lessens the ratio. They also changes the angle of attack, which increases the amount the engine tips, possibly causing trouble for a splash lube engine. I don't know of any engines that have blown up because of this. Pressure lubed engines have more tolerance, but I am not aware of a pressure lube engine available for a BCS right now (except diesels). Your V-twin might be pressure lubed - Does it have a filter?

They seem to be fine for snowblower work as well as most other attachments.
My V-twin isn't pressure lubed. I wonder if the Subaru Robin engines that Joel offers are any better design for lubing compared to the stock Honda's. I know they are OHC instead of OHV but I don't know which, if either, have a lube advantage.
 
   / Price for BCS 605 with Tiller #17  
I appreciate your feedback on this. I never realized mine was not a tapered 3 dog PTO until I cleaned the grease off to take pictures today. Is the internal PTO engagement of the 850 and newer tractors better than the old spline style?

That is interesting. Looks like you have one of the old (no longer made) quick hitch to fit the 605/737 with combo spline/flat 3 jaw PTO, but it has tapered 3 jaw PTO. I wonder if someone just swapped the PTO "connection" on that quick hitch from flat 3 jaw to the tapered 3 jaw. Seems weird that set it up that way. Anyway, yes, the 737/605 come with the combo spline/flat 3 jaw PTO, prior to the new tapered 3 jaw PTO that came out in 1995. So your 605 is a pre 1995, but probably early 90s model. Since 1995, most of the PTO is now enclosed in the transmission and in oil bath. This is definitely a better setup as everything except the 3 teeth are inside the transmission in oil bath. Grillo still uses this old style. It works fine. I run both. My Grillo G131 has flat 3 jaw PTO. But if I can have my wear components in oil bath instead of grease I would rather do that. Of course putting the transmission back together is more difficult now that everything is inside the transmission on the BCS.

As to taller tires and tilling, yes it does change the angle. Another thing is if user is very tall (over 6' 4"), it might be difficult for them having to lean over (more back aches), especially on Grillo since they only have 4 handlebar height adjustment positions. If user only tills, makes sense to use 5" x 10" maybe. But I do so much with my BCS/Grillo machines that I would never run less than 5" x 12" except in extreme cases.
 
   / Price for BCS 605 with Tiller
  • Thread Starter
#18  
That is interesting. Looks like you have one of the old (no longer made) quick hitch to fit the 605/737 with combo spline/flat 3 jaw PTO, but it has tapered 3 jaw PTO. I wonder if someone just swapped the PTO "connection" on that quick hitch from flat 3 jaw to the tapered 3 jaw. Seems weird that set it up that way. Anyway, yes, the 737/605 come with the combo spline/flat 3 jaw PTO, prior to the new tapered 3 jaw PTO that came out in 1995. So your 605 is a pre 1995, but probably early 90s model. Since 1995, most of the PTO is now enclosed in the transmission and in oil bath. This is definitely a better setup as everything except the 3 teeth are inside the transmission in oil bath. Grillo still uses this old style. It works fine. I run both. My Grillo G131 has flat 3 jaw PTO. But if I can have my wear components in oil bath instead of grease I would rather do that. Of course putting the transmission back together is more difficult now that everything is inside the transmission on the BCS.

As to taller tires and tilling, yes it does change the angle. Another thing is if user is very tall (over 6' 4"), it might be difficult for them having to lean over (more back aches), especially on Grillo since they only have 4 handlebar height adjustment positions. If user only tills, makes sense to use 5" x 10" maybe. But I do so much with my BCS/Grillo machines that I would never run less than 5" x 12" except in extreme cases.
I guess it was in the transition period ('94 - '95, 605 - 850). Like I said above, my dealer ordered it for me in early '95. It came in labeled as a 605, but with a "New for 1994" owners manual for 830/850's. No mention in that manual of a 605. It also came shipped with that tapered 3-dog quick coupler.
That's a good point about the handle height while tilling. I'm 6' 4"-ish, but my 605 has no issue getting a tall handle setting with the 5-10 wheels. Taller wheels will make for lower handles. My tilling use is mush less than it used to be though, since I mainly break ground with a larger 3ph tiller now. It gets used mostly with a sulky and wagon, or a trailer.
Thanks again for the feedback.
 
   / Price for BCS 605 with Tiller #19  
That's not the old style quick coupler. The old style didn't have a tapered tang.
 
 
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