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1986 fourspeed

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Old Jun 17, 2016 | 05:22 AM
  #11  
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Won't have tranny out that soon, still have riding plans I want to keep. Maybe in July, but need some idea of cost, my money tree is not in full bloom this year...
 
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Old Jul 7, 2016 | 02:57 PM
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Tranny is out and on the bench, decision to do it myself or send it to John . Gonna look inside first either way...
 
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Old Jul 7, 2016 | 08:26 PM
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strip it to the screws so you know and post pictures if you have questions
 
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Old Jul 9, 2016 | 12:19 PM
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Well the bushing in the main drive gear is wiped as expected, two splits in it. New spacer with machined o- ring groove broke right off where machined. Main bearing has little play but getting replaced, main shaft seems to be unscored surprisingly, all gears look as new,ONLY odd thing seen was metal shavings in the bottom of the kicker cover, what I consider big pieces too. They were packed tightly in one low spot with think sludge, did not look like metal until I removed it with a screwdriver to the rag. No evidence of where it came from as everything inside looks great. I'm thinking it's been there from a previous repair and they didn't clean the cavity out.
Time to order some parts....$$$$$








 
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Old Jul 9, 2016 | 12:31 PM
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Could be the pictures but I'm seeing some ripple on the mainshaft, if you can run a fingernail across and feel it it's on it's way out. Bushing looks like it was seated too deep in the drive gear so somebody could stuff 2 seals in there, never works well. Look at those shift forks also , pics too fuzzy but looks they need attention also.
 
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Old Jul 9, 2016 | 02:55 PM
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the picture with the mainshaft and 3rd gear with the shift dog in it is covering up most, of the chunks and debris you found

the gear teeth is not what takes a beating its the inside the shift dog and the gear spikes for the dog that shed all the metal

re install your hi gear chain sprocket and see if it wiggles on hi gear it looks chewed as well
 
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Old Jul 9, 2016 | 06:39 PM
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Yeah, main drive gear is toast, replacing along with a new front belt pulley, worn also. Only debris found was under kicker cover, all looks good though, nothing missing big chunks as I found, think they are previous. Going to check run out on main shaft, probably replace it.
 
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Old Jul 9, 2016 | 07:52 PM
  #18  
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has to be round under 4th gear if not it will leak again
 
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Old Jul 17, 2016 | 06:55 AM
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Quick update, half the parts came in, half on back order. The Andrews drive gear came with installed bushing and o-ring, sized to fit the Andrews main shaft that also came in. Now this is quality stuff here, I'm happy. Main bearing installed with a bearing installation tool I made to mimic the$54 Jim's tool. Worked perfectly.
Just waiting on the rest of my parts.......
 
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Old Jul 17, 2016 | 07:03 AM
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