Freightrain Posted February 20 Author Share Posted February 20 I'll work on PT 3 tonight. Not sure it will get uploaded until tomorrow night. It takes like 2-3 hrs to edit and save and 2-3 to download. 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-569892 Share on other sites More sharing options...
Popular Post Freightrain Posted February 28 Author Popular Post Share Posted February 28 Ok, the third and final video is uploaded. https://youtu.be/7xwNVPeVC-w?si=-tmUF64DA_AAdVwu 3 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-570554 Share on other sites More sharing options...
mowerman Posted February 28 Share Posted February 28 haha thats quite a run down,thanks for that,,,all your gears look new,,bob Quote Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-570561 Share on other sites More sharing options...
Popular Post Freightrain Posted March 5 Author Popular Post Share Posted March 5 Well, it is back in the truck. Nothing hooked up, but it's in there. I will get on it tonight and start the long process of getting everything back off the floor! 5 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-570813 Share on other sites More sharing options...
Geoff Weeks Posted March 5 Share Posted March 5 You'll have to learn to shift all over again, if it is anything like when I did my cabover. Everything tightened up and changed the arm movements needed. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-570814 Share on other sites More sharing options...
mowerman Posted March 5 Share Posted March 5 i had not thought about that,,,reminds me of the first time i drove a 13 speed road ranger was used to a 10 speed,,,,and i was only 20 lol.....grind grind grind,,,took a while 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-570820 Share on other sites More sharing options...
Popular Post Freightrain Posted March 6 Author Popular Post Share Posted March 6 7 hours ago, Geoff Weeks said: You'll have to learn to shift all over again, if it is anything like when I did my cabover. Everything tightened up and changed the arm movements needed. I still need shift towers. Now that I have them mounted, there is still plenty of slop in the handles. Nothing much I can do for them, I have been into them years back. Pins are worn, shift ball is worn. But that is for another day. Empty spot in garage I forgot to get the frame mounts cleaned and painted, so that is next but have driveshaft in, shifters on and a few other misc things attached. Once underside is done then I will get fuel and air tank back on so I can set truck back on the ground. Same Rustoleum gold I used on engine but this stuff sucks big time. No gloss, scratches off really easily. Oh well, nothing a bit of motor slobber won't cover 😟 7 1 2 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-570846 Share on other sites More sharing options...
seyser Posted Friday at 07:33 PM Share Posted Friday at 07:33 PM That looks really good! Nice and clean. Quote Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-570908 Share on other sites More sharing options...
mowerman Posted Friday at 07:39 PM Share Posted Friday at 07:39 PM not much you can do with rattle cans,,,,its usually just quick and easy,,,,nice neat work,,,, Quote Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-570909 Share on other sites More sharing options...
mowerman Posted Friday at 07:42 PM Share Posted Friday at 07:42 PM and everybodys garage looks like that after a big job,,,,i can cludder up mine just pulling apart a lawnmower,,,bob Quote Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-570910 Share on other sites More sharing options...
terry Posted Friday at 10:23 PM Share Posted Friday at 10:23 PM Can you put a oversized pin, and weld on the shift ball and round it down and smooth it, i have done that in the past. Terry. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-570920 Share on other sites More sharing options...
Freightrain Posted Saturday at 04:13 PM Author Share Posted Saturday at 04:13 PM I think that is what I did before, I know I had to weld the pins in. I found a shifter on eBay, has Mack pt no. but not sure what it fits. Looks like correct mounting. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-570945 Share on other sites More sharing options...
Geoff Weeks Posted Saturday at 05:39 PM Share Posted Saturday at 05:39 PM Anything made by man can be rebuilt or remade by man esp if he has access to a machine shop to do so! I'm betting you'll come up with a viable solution. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-570946 Share on other sites More sharing options...
mrsmackpaul Posted Monday at 03:17 AM Share Posted Monday at 03:17 AM I finally had a chance to watch the video's I have been a tad busy of late Fantastic job on the rebuild, great stuff all round and hopefully it will give many trouble free yeara of operation The oil pump plunger should sit in a eccentric or out of round doo hickie and pumps in and out as the shaft rotates On my 12 speed someone had sealed it up with aome RTV silicone sealant crap that oozed out on the inside and broke off, then this crap got pumped through the oil galleries and eventually got stuck on the sliding dogs Required a complete disassembly to fix And I think my box was dirtier than yours, what a mess Great work and a really impressive job you've done Paul 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-571034 Share on other sites More sharing options...
Popular Post Freightrain Posted Monday at 10:50 AM Author Popular Post Share Posted Monday at 10:50 AM On 3/8/2025 at 12:39 PM, Geoff Weeks said: Anything made by man can be rebuilt or remade by man esp if he has access to a machine shop to do so! I'm betting you'll come up with a viable solution. I looked at the shifter that was on my 5 spd that came with the 300+. It is the same mount. I think I can just purchase new ones and cut the handles off and reuse mine. Rebuilding them is a moot point. The sheet metal pocket the ball sits in is worn, the ball is worn, the pin is worn. Too much crap to deal with for what it is, if I can make others work. 5 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-571038 Share on other sites More sharing options...
Popular Post Freightrain Posted 21 hours ago Author Popular Post Share Posted 21 hours ago Well, last night I buttoned up everything, including getting the floor back in. I found a leak in the transmission, seems one of the side bolts I left out in the rear box must be a through hole as it seeped fluid when I had the truck running the other night so I siliconed the bolts in and need to wait for that to set up before running it again. I also did a whoops the other night. I installed the air start tank before moving the fuel tank so it is stuck behind the truck and no room to wiggle it through with the air tank in the way. I put the tank up on the rear chassis and once I pull truck out I will install the tank. Luckily it runs off the driver's tank. I should be able to test drive it tonight? Weather is good, roads relatively clear. We will see. 3 2 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-571135 Share on other sites More sharing options...
Popular Post Freightrain Posted 15 hours ago Author Popular Post Share Posted 15 hours ago It's mobile again .... Needs a really good bath, but it runs fine. Shifting was a bit tough at first, then it warmed up and shifts better. It was always a bit snug when first out but the compound was really stiff. Seems much better after 1/2 hr of driving. It's quiet and handles don't wander around anymore. My Jake switch is outta whack since I had removed the clutch pedal. I need to get under there and line it back up. It will work once, then not again. Simple fix. 5 1 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-571154 Share on other sites More sharing options...
mrsmackpaul Posted 7 hours ago Share Posted 7 hours ago A great result, all these older types when in good order are pretty stiff and shifting has to be slowed down until the oil warms up a bit Paul 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-571181 Share on other sites More sharing options...
terry Posted 4 hours ago Share Posted 4 hours ago 17 hours ago, Freightrain said: Well, last night I buttoned up everything, including getting the floor back in. I found a leak in the transmission, seems one of the side bolts I left out in the rear box must be a through hole as it seeped fluid when I had the truck running the other night so I siliconed the bolts in and need to wait for that to set up before running it again. I also did a whoops the other night. I installed the air start tank before moving the fuel tank so it is stuck behind the truck and no room to wiggle it through with the air tank in the way. I put the tank up on the rear chassis and once I pull truck out I will install the tank. Luckily it runs off the driver's tank. I should be able to test drive it tonight? Weather is good, roads relatively clear. We will see. I think them three holes on the side were for handbrake bracket. terry Quote Link to comment https://www.bigmacktrucks.com/topic/74958-rebuilding-my-triplex/page/5/#findComment-571185 Share on other sites More sharing options...
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