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HubbardRA

Driveshaft length AC712S?

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HubbardRA
Anyone know what the driveshaft length is for an AC712S is? May be better to have the length for a Simplicity 7012, since I am putting a B/S engine on the tractor. I just pulled the driveshaft from an AC410S and it is 21 inches long disc to disc. I was thinking the AC700 series driveshafts were about 18 inches. Didn't have time last night to crawl under the tractor and try measuring. Just trying to figure out if the shaft is going to need shortening before I can install it this weekend.

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Dutch
Rod, Too bad you didn't ask yesterday. I had a 712S (Kohler) hanging from a crane for steam cleaning. Anyway, right now I have a 7010-6 (1690204 Briggs) and a 7012H (1690352 Kohler) in the shop. I can measure them after lunch. According to my parts book, both use the same #172328 shaft. Here's a list. 1690006 - System 7016H 16 HP HydrostaticTractor - 7010-7016-7016H ENGINE & DRIVE SHAFT 1690014 - 716H, 16HP Hydro - 7010-7016-7016H ENGINE & DRIVE SHAFT 1690015 - Baron, 13HP System 7013 Shuttle - Engine & Drive Shaft Group 1690016 - 7010 Landlord 10 HP, 3-Speed - 7010-7016-7016H ENGINE & DRIVE SHAFT 1690062 - 710 - 7010-7016-7016H ENGINE & DRIVE SHAFT 1690075 - 712S - Engine & Drive Shaft Group 1690086 - Sovereign System 7016 16 HP 3 Speed - 7010-7016-7016H ENGINE & DRIVE SHAFT 1690202 - 7016H, 16HP - Engine & Drive Shaft Group 1690203 - 7016, 16HP 6-Speed - Engine & Drive Shaft Group (7010 & 7016) 1690204 - 7010, 10HP 6-Speed - Engine & Drive Shaft Group (7010 & 7016) 1690211 - 716H, 16HP Hydro (SN1001-2200) - Engine & Drive Shaft Group 1690211 - 716H, 16HP Hydro (SN2201-4169) - Engine & Drive Shaft Group (7012 & 7016) 1690211 - 716H, 16HP Hydro (SN4301-5997) - Engine & Drive Shaft Group (7012 & 7016) 1690212 - 716-6, 16HP 6-Speed (SN1001-2309) - Engine & Drive Shaft Group (7010 & 7016) 1690212 - 716-6, 16HP 6-Speed (SN2310-2589) - Engine & Drive Shaft Group (7010 & 7016) 1690212 - 716-6, 16HP 6-Speed - Engine & Drive Shaft Group (7010 & 7016) 1690213 - 712S, 12HP Shuttle (SN1001-2296) - Engine & Drive Shaft Group 1690213 - 712S, 12HP Shuttle (SN 2297-3750) - Engine & Drive Shaft Group 1690214 - 712H, 12HP Hydro - Engine & Drive Shaft Group (7012 & 7016) 1690215 - 710 Kohler - Engine & Drive Shaft Group (7010 & 7016) 1690215 - 710-6, 10HP 6-Speed - Engine & Drive Shaft Group (7010 & 7016) 1690232 - 7013S, 13HP - Engine & Drive Shaft Group 1690233 - 7013S, 13HP Tractor w/ 42" Mower - Engine & Drive Shaft Group 1690304 - Agricultural Tires - Engine & Drive Shaft Group (7010 & 7016) 1690319 - Turf Tires - Engine & Drive Shaft Group (7010 & 7016) 1690333 - 7010, 10HP 6-Speed - Engine & Drive Shaft Group (7010 & 7016) 1690337 - 7014S, 14HP Shuttle Tractor - Engine & Drive Shaft Group 1690341 - 7016, 16HP 6-Speed - Engine & Drive Shaft Group (7010 & 7016) 1690342 - 7016H, 16HP Hydro - Engine & Drive Shaft Group (7012 & 7016) 1690352 - 7012H, 12HP Hydro - Engine & Drive Shaft Group (7012 & 7016) 1690366 - 7018H, 18HP Hydro - Engine & Drive Shaft Group (7018) 1690367 - 718H, 18HP Hydro (SN 1001-1530) - Engine & Drive Shaft Group (7018) 1690367 - 718H, 18HP Hydro (SN 1601-2201) - Engine & Drive Shaft Group (7018) 1690396 - 714S - Engine & Drive Shaft Group 1690423 - 7016 6 Speed Tractor w/Turf Tires - Engine & Drive Shaft Group (7010 & 7016) 1690425 - 7016 6 Speed Tractor w/Ag Tires - Engine & Drive Shaft Group (7010 & 7016) 1690427 - 7016H, 16HP Hydro (w/ Ag Tires) - Engine & Drive Shaft Group (7012 & 7016) 1690429 - 7016H, 16HP Hydro (w/Turf Tires) - Engine & Drive Shaft Group (7012 & 7016) 1690431 - 7018H, 18HP Hydro (w/Turf Tires) - Engine & Drive Shaft Group (7018) 1690433 - 7018H, 18HP Hydro (w/Ag Tires) - Engine & Drive Shaft Group (7018) 990653 - Landlord 3310V - ENGINE AND DRIVE SHAFT LANDLORD 990654 - Sovereign 3314V - ENGINE AND DRIVE SHAFT-SOVEREIGN 990755 - Landlord 3410, 3-Speed - ENGINE AND DRIVE SHAFT 990756 - Landlord 3410S Tractor - ENGINE AND DRIVE SHAFT 990757 - Landlord, 3410H, 10HP Hydro - ENGINE AND DRIVE SHAFT LANDLORD 990759 - Sovereign 3415H,15HP - ENGINE AND DRIVE SHAFT LANDLORD 990772 - Low Speed Kit, landlord 3410 - ENGINE AND DRIVE SHAFT 990871 - Sovereign 3416H, 16HP - ENGINE AND DRIVE SHAFT 990872 - Sovereign 3416S Tractor - ENGINE AND DRIVE SHAFT 990979 - Baron 3414S - ENGINE AND DRIVE SHAFT 990980 - Baron 3414H, 14HP - ENGINE AND DRIVE SHAFT

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Dutch
Your questimate was close.... very close. Both mine measure 18-1/16". BTW - Flanges appear to be on the same plane.

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HubbardRA
Thanks Dutch, Since I don't have a flywheel adapter, I have to figure out if I can squeeze the longer shaft in, or do I have to shorten it?

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BLT
Rod 18". My cousin bought a 712 last week for BGB and he called me tonight, so I asked him to measure it.

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Dutch
quote:
Originally posted by HubbardRA
Thanks Dutch, Since I don't have a flywheel adapter, I have to figure out if I can squeeze the longer shaft in, or do I have to shorten it?
On both my 7010-6 (Briggs) and 7012H (Kohler), there are spacers (maybe 1-1/2" long) between the engine and shaft. I don't see any reason why a longer shaft with shorter spacers won't work. The only problem may be installing the shaft without some kind of spacer (tight squeeze).

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HubbardRA
Dutch, BLT, I measured it Last night. The 410S driveshaft is 21 3/8. It will not fit. Looks like I will have to cut about two inches off it and then make a short spacer. Both my other tractors have homemade spacers because they don't have original engines. Spacers won't be a problem. I just hate to cut and shorten the driveshaft. Guess I'll do that this weekend. I have another driveshaft, somewhere, that was lengthened 6 inches. I was going to cut that one back down, but I can't figure out where it is hiding. That one has a tube welded over the joint. It would be easy to cut the tube just behind the weld, remove the end of the shaft, shorten it, re-insert into the tube, and weld. It will probably re-appear as soon as I get this one cut and re-welded. Thanks for the help.

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IronPony
Rod, what did you use for those homemade spacers? I think I may have to do the same thing when I switch the flywheels between my K301 and K341. They are a little different at the hub. Dan

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HubbardRA
Dan, On one of the tractors I used a couple of pieces of tubing cut to the required length. On the other I used a stack of washers. Just make sure that you have the original Simplicity washers in contact with the flex plate on both sides. Even on the 61 Wards, with the 14Hp Kohler engine that has a factory Kohler spacer, I had to use about a 1 inch stack of washers on each bolt.

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Dutch
Rod, I have a spare #172328 shaft (18-1/16" OAL x 3/4" solid shaft diameter. The flanges have 3/8" holes 2-1/2" on center. That should be the one you need. Measure your need to be sure. If you want it, you can have it. I'll ship Priority Mail. Just send me the cost of shipping after you receive it, or send me the 410 shaft as an even swap. If that sounds fair to you, PM or email me your address.

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