Freightrain Posted December 6, 2015 Share Posted December 6, 2015 OK just got my flywheel and was going to run the bolts in my crank to clean out the threads. Ummmm, the bolts are too small.Why is my crank 3/4-16 thread and this flywheel take 5/8??Can I just open the holes or is there something unique about it? Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/ Share on other sites More sharing options...
theakerstwo Posted December 6, 2015 Share Posted December 6, 2015 I cant rmenber seeing a crank with 3/4 thread so it may have been over sized. 1 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-314452 Share on other sites More sharing options...
terry Posted December 6, 2015 Share Posted December 6, 2015 Probably came loose at one time, and the flywheel and crank was oversized to keep from having to take crankshaft out. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-314457 Share on other sites More sharing options...
Freightrain Posted December 6, 2015 Author Share Posted December 6, 2015 No wonder this motor was being passed around and never used. I guess I will drill the flywheel and use it. 2 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-314458 Share on other sites More sharing options...
68-f-model Posted December 6, 2015 Share Posted December 6, 2015 Sorry to hear that there are issues Quote Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-314466 Share on other sites More sharing options...
Freightrain Posted December 6, 2015 Author Share Posted December 6, 2015 Just a small hiccup. I can handle it. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-314478 Share on other sites More sharing options...
Popular Post Freightrain Posted December 21, 2015 Author Popular Post Share Posted December 21, 2015 Well, here's the fix for it.Homemade dual size studs: Took some 3/4-16 all thread and cut some pieces and rethreaded one side to 5/8-11Retapped the crank and installed them:Got the flywheel mounted up. I then hooked some air to my air starter and it does spin!!! Didn't crank it too far as the oil filter mount is not attached and don't want oil all over the place. Getting a few other pieces together so I can maybe start it soon. 4 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-316678 Share on other sites More sharing options...
mowerman Posted December 21, 2015 Share Posted December 21, 2015 oh my,,,looks like your getting close,,,woohoo,,,you certainly got everybodys attention.....interesting about the bolt sizes ... ill be putting a quad box out of a B model into my DM soon,,i suppose ill be running into similar issues.lol.bob Quote Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-316683 Share on other sites More sharing options...
Popular Post Freightrain Posted December 21, 2015 Author Popular Post Share Posted December 21, 2015 Well, the 3/4" bolts are still a "?". Not sure why it was done and likely not an issue you will run into. These custom studs are only for test running the motor. Period. When I go to put the motor in the truck, I will then drill my original flywheel to 3/4" holes and get new 3/4"-16 hardened bolts. My whole point was to NOT ruin this flywheel. I'd like to be able to sell it off and not have it bastardized with 3/4" holes and not fit someones motor. 4 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-316687 Share on other sites More sharing options...
Freightrain Posted December 29, 2015 Author Share Posted December 29, 2015 Well it is all in one piece now. Everything is bolted on. The primer pump was not working so I had to do a little finesse with it. Finally got fuel returning to my jug. Like is good. Only hiccup is I don't have a big enough air line to the starter to make it run fast enough to start it. Ugh. Either buy a 1" line or pull electric starter from truck and wire it up. Time with tell. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-317819 Share on other sites More sharing options...
theakerstwo Posted December 29, 2015 Share Posted December 29, 2015 Larry another thing I would check is see if the rack on the fuel pump is free.If it stuck you could have a run away and no way to shut it down. 2 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-317826 Share on other sites More sharing options...
Freightrain Posted December 30, 2015 Author Share Posted December 30, 2015 Had the cover off the gov. and the pump. Had a couple sticky plungers(which I freed up). Everything seems to move fine. I do have a thick book(manual) to cover turbo if things did awry(I wish thinking ahead). I'm only using enough fuel to barely start it the first time. Once it "starts" I will stick the line back in my bucket of fuel.Likely tomorrow I will pull starter from truck to start it. If it runs fine I will be pulling truck apart anyway. 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-317924 Share on other sites More sharing options...
Freightrain Posted December 31, 2015 Author Share Posted December 31, 2015 It RUNS!!!!! Now if I could link it with my phone. YouTube "59mack" and it is there. Took a couple tries. Used a heat gun to warm the intake up and a couple small shots of ether and it fired off. Really excited. Surprisingly the motor runs smooth and didn't want to walk around on the floor. Air starter works but only after I put enough air lines on it to be strong enough to spin it. Now to start tearing truck down. 2 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-318093 Share on other sites More sharing options...
j hancock Posted December 31, 2015 Share Posted December 31, 2015 Congrats! Linkhttps://www.youtube.com/watch?v=dkojHq2QnyI 1 Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-318095 Share on other sites More sharing options...
Freightrain Posted December 31, 2015 Author Share Posted December 31, 2015 Thanks Jim. I'm stoked....especially when I got the turbo whistling. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-318097 Share on other sites More sharing options...
mrsmackpaul Posted December 31, 2015 Share Posted December 31, 2015 well done glad its working out all okPaul 1 Quote Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-318109 Share on other sites More sharing options...
theakerstwo Posted December 31, 2015 Share Posted December 31, 2015 Sounds good to me 1 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-318124 Share on other sites More sharing options...
Freightrain Posted January 5, 2016 Author Share Posted January 5, 2016 OK question for the day: how much oil do the rockers pump? Even after a few minutes of running it only has a couple valve tips with oil on them. The rest are dry. The rocker shafts are wet along with the pushrod cups. Just concerned as it is making 80 psi right now because it is so cold. It should be pouring out somewhere.I've had them off. Should I pull the rockers again and make sure the oil holes are clear. I washed them in parts washer but didn't tear them apart. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-318641 Share on other sites More sharing options...
39 Baby Mack Posted January 5, 2016 Share Posted January 5, 2016 I know this sounds like a dumb question but were there "O" rings in the rocker pedestals?RonSent from my SM-G900V using Tapatalk Quote Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-318657 Share on other sites More sharing options...
Freightrain Posted January 5, 2016 Author Share Posted January 5, 2016 Replaced them with new. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-318658 Share on other sites More sharing options...
theakerstwo Posted January 5, 2016 Share Posted January 5, 2016 It takes some time before the oil starts to slobber out of the rockers.Thats the reason after a mack over haul I would always pour the new oil in before the Valve covers went on.The is a way the the oil can be cut off from the rockers.On one rocker stand there is a loack bolt holding the rocker shaft in place.If that bolt was missing the shaft could have turned cutting the flow.But then the rockers and shaft will be worn out from lake of oil. 1 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-318666 Share on other sites More sharing options...
Freightrain Posted January 5, 2016 Author Share Posted January 5, 2016 I was curious about that Glenn. I know on my FE engines the rocker shafts have to be rotated a specific way or they don't oil the rocker properly and they sqeak(and then wear out if you don't fix it). I bought my first 428 30 yrs ago with this issue and figured it out.I'm going to pull the shafts and see where the oil holes are at on the shafts. Not sure if the book shows location or not? I know the holes should be on the bottom side of the shaft if like a Ford motor. That is the wear side. I did clean them up before putting the top end back on. Don't recall rotating the shafts, but it is a possibility. Better to check now. Only two on the front head are dripping oil on the valve stems. Rear, nothing. I only added some oil to the filters when I screwed them on. Haven't added any other oil, it was near full and no water in it(drained some oil to see). I'll be changing it once I get it in the truck(or just before while on the ground). I did oil the tips/rockers and the like before assembly so it wouldn't be completely dry on start up. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-318677 Share on other sites More sharing options...
Popular Post Freightrain Posted January 22, 2016 Author Popular Post Share Posted January 22, 2016 Well, we have PAINT!!From this:To THIS..............Starting to look like something. Very close to being ready for installation. 8 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-321039 Share on other sites More sharing options...
j hancock Posted January 22, 2016 Share Posted January 22, 2016 Looks Good! Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-321043 Share on other sites More sharing options...
eddeere Posted January 22, 2016 Share Posted January 22, 2016 Great looking job. Quote Link to comment https://www.bigmacktrucks.com/topic/42967-237-flywheel/#findComment-321052 Share on other sites More sharing options...
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