Joey Mack Posted November 13, 2022 Share Posted November 13, 2022 Hey guy's.. I had this E-6 machined and new liners installed 2 years ago. I installed the cam and pistons a year and a half ago, then had to stop to do other engines for this customer. I had the engine on its stand, I kept it covered and lubed and every once in a while I would wipe it down and spray lube all over it and inside of it.. sometimes I would roll it over a bit.. So today I am back on it, and was cleaning the deck, and cylinders, when I found this.... I know I need to replace the liner, what gets me is how this happened, since I have kept up with it, and kept it clean an free of moisture.. Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/ Share on other sites More sharing options...
mowerman Posted November 13, 2022 Share Posted November 13, 2022 Why don’t you just run the homer down it right quick with oil and then wipe it out Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515015 Share on other sites More sharing options...
Joey Mack Posted November 13, 2022 Author Share Posted November 13, 2022 I used 320 emery cloth to clean it up, and it is actually a recess, pitted, somehow.. I'm afraid it will brake a ring.. I guess, my question is more about has this been seen before, and is it possible the counter bore has an issue? I did NOT install the liners, so I have no idea about counter bore condition.. I guess I will pull the piston out and check the rings.. Good to hear from you Bob... jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515023 Share on other sites More sharing options...
mowerman Posted November 13, 2022 Share Posted November 13, 2022 It looks like a chunk missing to me according to the photograph just like you said I would be afraid to use it If the counterbore is warped the liner will not come out without a huge fight … bob Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515026 Share on other sites More sharing options...
mowerman Posted November 13, 2022 Share Posted November 13, 2022 And yes Joey I appreciate the flowers Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515027 Share on other sites More sharing options...
Joey Mack Posted November 13, 2022 Author Share Posted November 13, 2022 (edited) I have a great liner puller, and I can always run a few beads of weld in it to shrink it.. The other 5 are fine, Phewwww.... Edited November 13, 2022 by Joey Mack I forgot the darn picture Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515028 Share on other sites More sharing options...
mowerman Posted November 13, 2022 Share Posted November 13, 2022 I had a neighbor make me one almost 40 years ago that thing looks pretty hefty Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515029 Share on other sites More sharing options...
Joey Mack Posted November 13, 2022 Author Share Posted November 13, 2022 it kicks butt !!! It's the only style I have ever used at the Mack dealership, so when I started building engines in my Road service, I bought one.. They are $1000.00, and worth every penny to me.. jojo Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515030 Share on other sites More sharing options...
mowerman Posted November 13, 2022 Share Posted November 13, 2022 That’s a lot of loot but for something that works well sometimes you gotta do what you Gotta do Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515031 Share on other sites More sharing options...
mowerman Posted November 13, 2022 Share Posted November 13, 2022 They’re not going to come out of there without it let’s face it Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515032 Share on other sites More sharing options...
Joey Mack Posted November 13, 2022 Author Share Posted November 13, 2022 Hell, my counterbore cutter cost $3000.00 Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515033 Share on other sites More sharing options...
mowerman Posted November 13, 2022 Share Posted November 13, 2022 Well that thing is worth it’s weight in gold didn’t know they sold portable Version until you were talking about doing them on the road a while back Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515034 Share on other sites More sharing options...
Joey Mack Posted November 13, 2022 Author Share Posted November 13, 2022 it cuts very well, and with ease... Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515035 Share on other sites More sharing options...
Onyx610 Posted November 13, 2022 Share Posted November 13, 2022 Ok Joey let’s get everything out, we want to see it all! Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515036 Share on other sites More sharing options...
Joey Mack Posted November 13, 2022 Author Share Posted November 13, 2022 Sorry, I was chatting with Bob.. Anyway, what do you think caused the pitting, i'm stumped... Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515037 Share on other sites More sharing options...
Onyx610 Posted November 13, 2022 Share Posted November 13, 2022 (edited) No keep going, I like tools. God for bid anyone every robbed your garage. But most people would walk buy all that stuff in there and be like nothing but junk in here! Little do they know how much money is in there. As for the pitting. Not sure bud, just oxidation made the imperfections show through? Edited November 13, 2022 by Onyx610 Spelling Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515038 Share on other sites More sharing options...
Popular Post Joey Mack Posted November 13, 2022 Author Popular Post Share Posted November 13, 2022 Interesting thought on the pitting.. I am glad that I found it today, my plan was to get the heads on.. Now I have to buy a new liner, and piston rings.. I love losing money... But in the end,,, I need to make sure my engine is correct... 2 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515039 Share on other sites More sharing options...
Mark T Posted November 13, 2022 Share Posted November 13, 2022 Not by any chance PAI ? Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515048 Share on other sites More sharing options...
Joey Mack Posted November 13, 2022 Author Share Posted November 13, 2022 I dont know Mark... When I had the block done I asked them to press the liners in. They bought the liners... I would assume PAI, But I don't know, and I can't find out.. However, when I pull this liner, I may be able to see a stamping on it.. Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515050 Share on other sites More sharing options...
Mark T Posted November 13, 2022 Share Posted November 13, 2022 That one may need Boraxo Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515051 Share on other sites More sharing options...
Joey Mack Posted November 13, 2022 Author Share Posted November 13, 2022 Truth is.... I have never been in this spot before.. I buffed it really good, and the pitting is below where the rings will ride, but I have no idea how long it will run with this small amount of pitting. It may run great for a long time.. and because it is an E-6.... I do not have real skills for installing the liner.. I heard about dry ice, but never done it. I was raised on E-7's... I have a liner press for those engines.... when you deep freeze the liner in dry ice, will it just drop in? I bet I would have to move quickly? of course i will have the block clean and ready to go.. jojo Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515052 Share on other sites More sharing options...
theakerstwo Posted November 13, 2022 Share Posted November 13, 2022 On a E 6 just hone the block and try the liner.If its all good it should go by hand almost one half down and then with a clean block of wood pound it down. 1 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515061 Share on other sites More sharing options...
Joey Mack Posted November 13, 2022 Author Share Posted November 13, 2022 Thank you Glenn. I was hoping I could do that... I use a hone on E-7/E-Tech's, to get them cleaned up.. I made a press with steel plates and Threaded rod's, and a short 12 ton bottle jack, and I have a piece of plastic silo liner that is 1/2" thick to put on top of the liner.. I've lost count of how many liners I pressed in with this rig. I was hoping I could use it instead of dry ice. I was concerned about the liner sticking half way in and then i have to pull it out and try again.. Jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515062 Share on other sites More sharing options...
fjh Posted November 14, 2022 Share Posted November 14, 2022 16 hours ago, Joey Mack said: Thank you Glenn. I was hoping I could do that... I use a hone on E-7/E-Tech's, to get them cleaned up.. I made a press with steel plates and Threaded rod's, and a short 12 ton bottle jack, and I have a piece of plastic silo liner that is 1/2" thick to put on top of the liner.. I've lost count of how many liners I pressed in with this rig. I was hoping I could use it instead of dry ice. I was concerned about the liner sticking half way in and then i have to pull it out and try again.. Jojo Joey ! When you up root that liner check the outside of it for size markings ! They offered P numbers on these ! Glenn correct me if I'm wrong But OVERSIZED liners weren't uncommon can't remember the sizes 2 thou increments I believe ! I have installed up to 10 thou over before! pain in the ass honed for ever! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515111 Share on other sites More sharing options...
theakerstwo Posted November 14, 2022 Share Posted November 14, 2022 You are correct on the .002 over size.I have hone that much out of the block before and it takes some time.I remember our red headed night foreman as homing a block one night with a maybe 3/4 drill motor that was very slow speed.i saw him run the sun hone too deep in the block and hang the crank which in return stop the drill motor by slapping him in the cods with one of the handles of the drill.He set down on the fender of the B model and just set there.I say do you hurt and he say yes then he drops his pant to find one cod with no skin on it.Thats when i started to hurt. Those old END 170 engine was bad to deform the block bore.Later engines with the 20 head bolt heads was not that bad and they let the liner be installed some looser. 1 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/70698-endt-673-liner-has-pitting-i-dont-know-how/#findComment-515132 Share on other sites More sharing options...
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