Joey Mack Posted December 20, 2020 Share Posted December 20, 2020 Were on the same page Vmac3... Im glad you took the time to type all of what you know... You are absolutely right!!! 1 Quote Link to comment Share on other sites More sharing options...
Vmac3 Posted December 20, 2020 Share Posted December 20, 2020 Whats that old saying? There is never enough time to do the job right the first time but there is always enough time to do it twice. 1 Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted December 20, 2020 Share Posted December 20, 2020 Thats a new one for me.... makes total sense! Quote Link to comment Share on other sites More sharing options...
880joe Posted December 20, 2020 Share Posted December 20, 2020 How do you guys feel about new liners and using the old pistons? I see PAI has pistonless inframe kits you get everything but new pistons for around 1000 dollars Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted December 20, 2020 Share Posted December 20, 2020 youre pistons should be scraped on the thrust side. The P.A.I. kit I used had pistons, and rings in boxes, and new liners. I re-used the connecting rods. Of course, many will dissagree with re-using connecting rods without having them checked, the engine ran good before i tore it down, and did not vibrate or shake,, it had a cracked head, and my cust wanted me to re-build it. after inspecting the crank journals, we decided to go for it. I guess, you and youre mechanic need to discuss it...... 1 Quote Link to comment Share on other sites More sharing options...
Vmac3 Posted December 20, 2020 Share Posted December 20, 2020 There are plenty debates on reusing engine components, pistons, rods and the likes. Its all about how much money you want to spend. If the pistons are not out of round, ring lands are good, no cracks and the thrust and ani-thrust sides show little to no wear, then it can be reused. Connecting rods can be checked by using a dial indicator and rotating the engine and measuring the heights of the pistons. The liners need to be secured to the engine block bolted down with large washers. Anyway if you plan on keeping the truck for a long time then it will be a good investment to have all pistons replaced. But its up to the individual. V 1 Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted December 20, 2020 Share Posted December 20, 2020 Hello 880 joe, The E-7 I built, is doing good... When I did the job, we replaced, the: Heads, Water pump, Air compressor, Radiator, the oil cooler and turbo was a few months old and in great shape, so my customer asked me to re-use them. I agreed.. New belts, and fan clutch (viscous). The cam and lifters looked good, so we skipped that. I took the oil pump apart and measured the clearence, spring tension, and there was no scarring. I put it back in, Oil pressure was, and still is, within spec when we ran the engine, (Run-in).. It still makes good oil pressure when hot. it's only been 4 months, but it's still doing it's job.. I know I repeated some stuff here.... The final cost: $10,500.00 Parts and labor.. Jojo Quote Link to comment Share on other sites More sharing options...
fjh Posted December 21, 2020 Share Posted December 21, 2020 Myself Long as the pistons and skirts look good I wouldn't hesitate to go the liner kit route! Also if you engine is 350 plus horse power DO NOT Atempt using low spec Shoot for any thing above 25 thou as mentioned 28 is nice if you can achieve it! And strictly adhere to the 2 thou variance between holes!Also! Suggest use a good quality Silicone permatex Ultra gray or ultra black Have also used there Anaerobic sealant works well also! Try to avoid cutting the counter bore if you can Putting down shims can be a risky business if not done correctly can backfire! before your guy up roots liners Measure where your at See what protrusion is there! Theroy here being, It ran before it will run again if were in and around the midrange spec! These Guys are putting you on the right road here Just heed the warnings! Good luck bro 2 Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted December 21, 2020 Share Posted December 21, 2020 Thank you "F" for adding youre knowledge.. when i'm building an engine, the deck looks like a "math problem" with all of my paint pen measurements, I also sketch the deck on cardboard and re-write my measurements on the cardboard "art work" ....Anyway. I have been mocked at dealerships for my redundancy....... but when my engines fire-up...... there's no problems... I take neary 10-15 hours longer than most, but ..... I dont know it all,,,, but i'm proud of what I know.. I'm glad you're here.. Jojo 1 Quote Link to comment Share on other sites More sharing options...
Mark T Posted December 22, 2020 Share Posted December 22, 2020 I bet someone had green antifreeze in that engine Quote Link to comment Share on other sites More sharing options...
fjh Posted December 22, 2020 Share Posted December 22, 2020 14 hours ago, Mark T said: I bet someone had green antifreeze in that engine You'll notice that now a days you can find mostly 50/50 antifreeze no mixing required two reasons ! they make more money For sure! How ever water quality is controlled also ! With full strength your at risk of adding in unwanted minerals yada yada! Where I work we wouldn't entertain using the water with antifreeze, Just the Iron content of the water is off the scale We have a big sign on the wall DON'T DRINK THE WATER HERE! That goes for the trucks we repair as well! 1 Quote Link to comment Share on other sites More sharing options...
Jpaul Posted February 24 Share Posted February 24 On 12/13/2020 at 8:15 PM, Joey Mack said: Hey there, That looks like coolant mixed with the oil. If you can let the truck sit for a day or 2, loosen the oil drain plug and see if water comes out first. no need to pull the plug, just get it very loose, coolant will run out around the threads... you can also drain the oil and drop the pan, pressure test the "full" cooling system to 20psi, and watch the bottom of the liners for coolant dripping.... good luck, I hope I'm wrong... Jojo... Hi Joey do you still doing mobile work? Please let me know. Thank you 7044914675 Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted February 24 Share Posted February 24 No more mobile work.. I have a cushy city job now.. I just build Mack engines and transmissions in my shop.. sorry bud.. jojo Quote Link to comment Share on other sites More sharing options...
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