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SOLVED!!!!
Remember that I am a Newbie, but learning FAST.
My super-mechanic friend Joey B came over tonight, and we were planning to pull the Main Shaft and inspect it. I offered for him to drive the Deuce before we started, so he could experience the shifting issue first-hand. Yup --...
Did that. Photos of metal-free sludge are earlier in this thread. Had 80-90 and changed to SAE30. No real difference — still same problem. Pulling Main Shaft Sunday. Synchros are copper not yellow, so after-market, but rest of case looks super clean. It is a dang mystery, but we will...
Ha. Been wearing out my left knee trying! That is what pretty much confirms a bigger problem. There is no way to gently, seductively coerce, or hammer her into any gear. But thank you for the suggestion!
Our 2nd high has always been a bit finicky, just like that, too, but this is much worse than that. No gear change (any gear) possible while in motion, and sometimes when stopped. Main Shaft coming out on Sunday night, for a good going-over....thank you, cattlerepairman!
Agreed, gringeltaube. We will know what we have if we repair this one. Is the sequence to tear it down and inspect, and then order needed parts, or just order the new synchros today? Do you have a supplier you trust to send me yellow ones and not copper ones? Thank you.
......or is now the time to buy a gently-used full transmission, and just swap it out? Which is the wiser choice? Thanks, folks, for sharing opinions......
Installed Barrman's Top Section early this morning, and took her for a drive at first light. No change. Top section works perfectly, but the truck must be stopped in order to shift from any gear to any other gear. The Second Gear synchro is "sticky" meaning that it takes some coaxing, but...
Thank you, Barrman! I have cleaned up your donor/test Top Section, and will finish it up in the morning, install it, and give her a drive at first light tomorrow. Will report back.
Last night, we checked in detail the operation of the top unit while in a vise. It worked as-expected, without binding or hanging-up anywhere. We then moved all parts associated witht the Main Shaft. While it was occasionally tough to move it into 3rd gear, it also worked as expected in all...
Thank you Welder1. We will check the Main Shaft as you suggest today or tonight. I have a Master Mechanic buddy coming to visit. We will look for any extra play or misalignment, and perform the checks you outline, and report back. Thank you.
I drove her in 1, 2, 3 and 4th gears today, but only could shift when stopped. And today, it went back to sometimes not allowing me this time to get OUT of 2nd gear, even when stopped and the clutch pushed to the floor. All other gears were accessible except 2nd gear -- it was the bad actor...
I drove her in 1, 2, 3 and 4th gears today, but only could shift when stopped. And today, it went back to sometimes not allowing me this time to get OUT of 2nd gear, even when stopped and the clutch pushed to the floor. All other gears were accessible except 2nd gear -- it was the bad actor...
....and I have not pulled anything heavy, but this is a 1966 M35, and was a pasture survivor, and used as a mudder there before I saved her, so it is quite possible she pulled loads within the last few years, I just don’t know. But maybe the synchros can tell us their story.......
Thanks for the suggestions. I will drive her again in the morning and make doubly sure the clutch is all the way depressed. I wasn’t consciously thinking about it, so who knows? I will also pull that inspection plate. Getting to know the truck is a good thing. Thank you again.
Thanks again. I will do as you suggest, tomorrow, and post some photos. My recollection is that my synchros DO HAVE some reddish tint compared to your photo. But let me take another look. I will inspect them closely and send photos of any markings.
So....I drained the 80-90 weight that was in the transmission and put it through a coffee filter and fine screen. Then swept it with a super magnet, and pulled sludge from the bottom of the case through the drain hole with my finger. Looked at all residue in the sun, on a white background...
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