Re: Stuck syncro?

Posted by Fixerupper on March 10, 2012 at 19:20:09 from (199.120.105.202):

In Reply to: Re: Stuck syncro? posted by Janicholson on March 10, 2012 at 18:04:29:

Thank you for the information. Like I said, I know very little about syncros. The old stuff I work with doesn't have them. When I sat down there in the drivers seat of that beast I could just hear the noise and feel the heat without it even running. That airplane engine is right behind the driver's right shoulder with a thin tin wall in between, the drive shaft from the engine to the transaxle is right beside the driver's right shoulder and the transaxle is by his right arm. The transmission part of the transaxle is aluminum and has cooling fins-right beside the driver. WHEW!

He wants to tow it a mile to a neighbor who plans to replace the engine. The book says to take off the drive shaft from the engine and put the tranny in fifth gear for towing. That keeps the tranny lube pump turning while towing. It also warns to go no faster than 7 MPH. It won't go into fifth and that was what he was worried about and justifiably because the lube pump doesn't turn if towed in neutral. But after I looked at the parts book awhile I determined the pump will spin with the tranny in granny, because it spins the top shaft which turns the gear on the bottom shaft that spins the pump, but it'll be spinning might fast. I told him he'd probably be OK if he did't go faster than 1 MPH, maybe 2 MPH. I don't know how fast granny is on this rig when it's running. The engine is governed at 2100 RPM's.

To check to see if the lube pump worked I rigged up a hydraulic motor with a 1" square output shaft, and I put a 2 1/8"- 1" drive socket on it. Then I put the whole works on the nut inside the input yoke on the tranny and plugged the hyd motor into a tractor. It spun the tranny over just fast enough to eventually get oil pumping so he does have a lube pump that works, it's just going to be spinning pretty darned fast when he tows this thing with the tranny in granny.

He said the previous owner used this vehicle to pull stumps. I got a chuckle out of that, thinking about a vehicle with an airplane engine pulling stumps. Seems kind of out of character! Jim

Replies:

• Re: Stuck syncro? Janicholson 22:05:12 03/10/12 (1)
  • Re: Stuck syncro? Fixerupper 05:50:10 03/11/12 (0)

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