PT Rises from the Ashes

   / PT Rises from the Ashes #1  

Sedgewood

Platinum Member
Joined
Mar 14, 2002
Messages
589
Location
Columbia Co, Eastern NY
Tractor
PT-1845
<font color="red">Success! - and not a moment too soon - its a jungle out there. (see attachment) </font>

Here are my notes from Sunday and Monday. I'll have more details and pictures of some of the long road leading to this (so far) successful rebuild from the fire as soon as I can get organized a bit. My focus has been on the tractor the last few days as you might imagine. /forums/images/graemlins/tongue.gif

Sunday 9/07/03 Initial startup. Decided to forego the usual commissioning procedure of filling the motor and pump cases. Since none of them were actually removed I thought I could presume they still contain enough old hydraulic fluid to lube bearings etc during startup. Hope I was right! I did prefill the new hydraulic filter and the line from the filter to the charge pump. And I put the tractor up on blocks so I could initially gently run the wheel motors unloaded. Then I did the usual after-filter-change air purge. That complete I turned the ignition on, cranked, and the engine started instantly. I let it idle a few minutes while checking for leaks, etc. Then I slowly ran the wheel motors backwards and forwards for a few minutes. Then cycles the cylinders several times. Then let the tractor down off the blocks and slowly drove the 500 feet or so to the mower, hooked it up, and ran it slowly for a few minutes. Everything worked fine except the starter and the fan which I inadvertantly hooked up backwards. No leaks. When I had the starter solenoid replaced, the mechanic could not determine the proper replacement and took his best guess at one he thought would have the correct throw. He missed a bit. The solenoid doesn't make electrical contact to start the starter rotating until a tad beyond contact with the flywheel so if the solenoid doesn't throw the pinion right between the teeth of the flywheel, no go.

Monday 9/08/03 I tried shimming the starter out a bit with some washers and it works fine, but I don't think it is stable enough for a permanent fix. I mowed for a while and all seems ok so far except for a flat tire on the mower :) And when I went to fix that the tractor would not start - push the button - nothing. I must have a screw loose.

Off to do a bit of diagnostics,
Sedgewood
 

Attachments

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   / PT Rises from the Ashes #3  
Great news, this has been a long road for you. Appreciate your keeping us up to date, not fun but you probably will be the best machanic around on the PT machines.
PJ
 
   / PT Rises from the Ashes #4  
Sedgewood -

We all remain amazed at your intestinal fortitude in your ordeal, and we are cheering you on as you proceed with your (successful!) rebuild. I for one am considering whether I should just design a halon system for within the engine bay!

Congratulations, and thanks so much for keeping us all in the loop. Completely fascinating reading.

Cheers!

Rob /forums/images/graemlins/smile.gif
 
   / PT Rises from the Ashes #5  
John,

Hans may win the PT test pilot award, but you've got the PT rebuild award. Great job on a master jigsaw puzzle.

Duane
 
   / PT Rises from the Ashes #6  
Great News! Heck, you may want to start manufacturing these things now. /forums/images/graemlins/smile.gif
 
   / PT Rises from the Ashes #7  
Congratulations on getting everything back together!

I noticed in looking at your parts purchases that you purchased hydraulic fluid <font color="red">(25 gal Kubota AW ISO VG 46 hydraulic oil from Columbia Tractor ) </font> rather than motor oil for the hydrualic system. What caused you to change?
 
   / PT Rises from the Ashes #8  
Congrats! Great news /forums/images/graemlins/cool.gif /forums/images/graemlins/cool.gif /forums/images/graemlins/cool.gif. I know how satisfying it is when you put it back together & it works! I've been monkeying with my old leaf blower (a much smaller project than yours). Can't tell you how happy I was (and wifey) when I got it running in time for the fall apple & leaf season.
 
   / PT Rises from the Ashes
  • Thread Starter
#9  
<font color="red"> And when I went to fix that the tractor would not start - push the button - nothing. I must have a screw loose.
</font>

My newfound intimacy with this beast sure made diagnosing this little problem easy! Since the 14/12 cable was burned back a bit, I built a new junction box (see attachment) and mounted it under the fuel tank, where the now shorter cable would reach it and where the box is much handier to access too (PT are you following this?). In addition to the terminal strip I put the fuses in there too. And added a ground bar from an old electrical panel. Then when I rewired I used SJ 14/4 and 14/2 cable for everything and brought all the grounds to the ground bar.

Fortunately when I needed one additional conductor up at the dash, I ran a 14/4 up through the tunnel to give me some spares. It turns out my starter problem is a break in continuity INSIDE the 14/12 cable! That must be a manufacturing defect that finally separated from all my pulling and tugging of hydraulic hoses through the tunnel - it's pretty full when they are all in place.

Gotta go play PT,
Sedgewood
 

Attachments

  • 314721-P9051107newjunctionbox.jpg
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   / PT Rises from the Ashes
  • Thread Starter
#10  
smartguyz: <font color="green"> I for one am considering whether I should just design a halon system for within the engine bay! </font>

Having a fire extinguisher less than 500 feet away might have saved me some grief. That said, I still have to get one and find a place to mount it.

Better put that on my todo list,
Sedgewood
 

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