mechohaulic Posted 1 hour ago Share Posted 1 hour ago On 1/10/2026 at 2:38 PM, Freightrain said: I'm just measuring because I can just to see what it is. Talking with my friend at motor shop, he says a 2" pin should have about .0015 clearance. It does. Piston is in range also in general terms. A thou one way or another shouldn't make a huge difference. I'm not "racing it" or turning excessive RPM. Gasket kit showed up just now. I also am going to get alignment tool for squirters just because. Will get pistons on the rods so I can get them shoved in after I check squirters this week sometime. alignment tool ??? when in doubt , take a welding rod with flux removed and place in the end of squirter to get a visual idea of squirt location. should be under piston , lubing wrist pin on down stroke. 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75768-300-rebuild/page/20/#findComment-589108 Share on other sites More sharing options...
Joey Mack Posted 1 hour ago Share Posted 1 hour ago Earl taught me to do the same thing, knock the flux off a welding rod and use it to aim the cooling tubes.. you brought me back a couple decades Mech... thanks.. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75768-300-rebuild/page/20/#findComment-589109 Share on other sites More sharing options...
cruiseliner64 Posted 1 hour ago Share Posted 1 hour ago I love this tread.You guys have some knowledge..... Paul 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75768-300-rebuild/page/20/#findComment-589112 Share on other sites More sharing options...
Joey Mack Posted 1 hour ago Share Posted 1 hour ago Paul, here is one I did in my modest shop a few years ago. A BMT brother needed an engine, so I went and picked one up that he bought and did a full build. 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75768-300-rebuild/page/20/#findComment-589113 Share on other sites More sharing options...
Joey Mack Posted 1 hour ago Share Posted 1 hour ago There is bunch of guys here that have great knowledge... Glad you found BMT 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75768-300-rebuild/page/20/#findComment-589114 Share on other sites More sharing options...
cruiseliner64 Posted 1 hour ago Share Posted 1 hour ago 1 minute ago, Joey Mack said: Paul, here is one I did in my modest shop a few years ago. A BMT brother needed an engine, so I went and picked one up that he bought and did a full build. Love to have the tools and knowledge to turn out an engine like that.I know where there is a 350 tip turbine about an hours drive from me.I was thinking of getting it and doing a rebuild on it but dont know if I have the guts to take it on..... Paul Quote Link to comment https://www.bigmacktrucks.com/topic/75768-300-rebuild/page/20/#findComment-589115 Share on other sites More sharing options...
Freightrain Posted 1 hour ago Author Share Posted 1 hour ago 3 minutes ago, cruiseliner64 said: Love to have the tools and knowledge to turn out an engine like that.I know where there is a 350 tip turbine about an hours drive from me.I was thinking of getting it and doing a rebuild on it but dont know if I have the guts to take it on..... Paul And here I am taking my shot in the dark doing mine..... 😆. Just like rebuilding my Triplex last winter. Had no clue but after figuring it out it turned out fine. Joey, no the shop has no big diesel stuff tools. My friend with the seal installer says it's a PITA and sounds like he doesn't use it. He is very busy and hard to get any time with him. That is why I was just fudging the oiler alignment. I'll buy the tool if I have to. I need to get out to garage and confirm they even sold me the right seal and ring. Mech, I used 1/8" TIG rod that we have tons of at work. We use 1/8" and bigger at work. 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/75768-300-rebuild/page/20/#findComment-589117 Share on other sites More sharing options...
cruiseliner64 Posted 51 minutes ago Share Posted 51 minutes ago Yes your tread has me thinking about doing that engine..... Paul Quote Link to comment https://www.bigmacktrucks.com/topic/75768-300-rebuild/page/20/#findComment-589118 Share on other sites More sharing options...
Brocky Posted 48 minutes ago Share Posted 48 minutes ago Thanks to all who have posted on this topic.... I have learned a lot, even though I will never use it.. Quote Brocky Link to comment https://www.bigmacktrucks.com/topic/75768-300-rebuild/page/20/#findComment-589119 Share on other sites More sharing options...
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