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WaltDevore 
Bronze Level
Joined: 03 Jan 2020
Location: IdahoSprings CO
Points: 143
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 Topic: 271 parts supplier
Posted: 07 Jul 2020 at 8:09pm |
Hello Gentlemen,
I ready to get rebuild
parts, cylinder kit, rod bearings, head gasket set, and oil pan gasket
for my 1951 HD5G. Would you have a recommended supplier? Is it
possible to get the pistons and rings already installed in the cylinder
sleeve? Removing the piston rod bushing looks formidable. Can it be
beaten out? The cap looks solid and immovable. 
Are special tools needed to install new rings and get the piston rod separated?
Thanks so much!
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WaltDevore
Bronze Level
Joined: 03 Jan 2020
Location: IdahoSprings CO
Points: 143
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Posted: 07 Jul 2020 at 8:17pm |
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I have called DJS at the bottom. Hope to hear back.
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PaulB
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Joined: 12 Sep 2009
Location: Rocky Ridge Md
Points: 5163
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Posted: 07 Jul 2020 at 8:23pm |
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Find a truck engine rebuilder that sells K-C parts. Korody-Colyer corporation
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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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WaltDevore
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Joined: 03 Jan 2020
Location: IdahoSprings CO
Points: 143
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Posted: 07 Jul 2020 at 9:02pm |
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I'll check it out. Thanks
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CAL(KS)
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Joined: 18 Sep 2009
Location: Chapman, KS
Points: 3804
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Posted: 08 Jul 2020 at 8:12am |
https://www.powerlinecomponents.com/
this place is a DD and aftermarket dealer. I bought a kit for my blower from here and they were good to work with. Would purchase from them again.
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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20
Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15
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WaltDevore
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Joined: 03 Jan 2020
Location: IdahoSprings CO
Points: 143
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Posted: 08 Jul 2020 at 12:33pm |
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They worked out easy and efficient. Thanks so much for the turn on.
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DMiller
Orange Level Access
Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 34385
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Posted: 08 Jul 2020 at 2:17pm |
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The wrist pin end caps are Tin seals, that is the reason are dished when installed. If replace the pistons will need the seal installer, Drive them to seat them ONE SINGLE BLOW then use a vacuum gun with a suction cup to test them, they leak knock them out try another. Reason being the seal can displace oil to the airbox, can set up for a runaway engine, will also pressurize the crankcase also leading to excessive oil spewing.
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WaltDevore
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Location: IdahoSprings CO
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Posted: 09 Jul 2020 at 8:56am |
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Thanks for the heads up. Another learning curve to do in one big gulp. It would be nice if all that was preinstalled. No end to the challenges.
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DMiller
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Joined: 14 Sep 2009
Location: Hermann, Mo
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Posted: 09 Jul 2020 at 10:25am |
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Details are in the DD Service Manuals.
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Amos
Orange Level
Joined: 11 Sep 2009
Location: Ontario
Points: 1318
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Posted: 09 Jul 2020 at 5:32pm |
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Look up bus grease monkey on youtube he has several videos where he overhauls 6 - 71 s they are the same as yours but with 4 more cylinders he explains what to look for and what not to do
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
Points: 42036
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Posted: 20 Jul 2020 at 9:46am |
I went with T pistons and liners on my 2-71 - mainly I had extras from past work . Detroit Diesel dealer was cheapest for gasket set and other parts . HV7 injectors I bought rebuilt from Truck Dealer as I snow plowed for them and had account - 1/2 price of what others wanted for rebuilt injectors
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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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DMiller
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Joined: 14 Sep 2009
Location: Hermann, Mo
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Posted: 20 Jul 2020 at 11:59am |
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Two basic piston types, Trunk and Crosshead. Trunk are all one piece as you showed, Crosshead are two piece with a replaceable skirt to a piston crown, different styles altogether as far as engine Needs and periods of build.
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WaltDevore
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Location: IdahoSprings CO
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Posted: 20 Jul 2020 at 2:43pm |
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I'm getting ready to put her back together. Should the pistons go into the liner before inserting it into the block or after? The top shell rod bearings should be installed before liner goes into block?
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DMiller
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Joined: 14 Sep 2009
Location: Hermann, Mo
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Posted: 20 Jul 2020 at 3:12pm |
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Pistons install from BOTTOM of sleeves, If have a liner stuffer is easier than a ring compressor but compressor will work. Sleeves with pistons are inserted as a assembly and should be a snug slip fit. If drop in and bounce will pull apart under heavy load. Trial fit the sleeves before get too carried away.
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WaltDevore
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Location: IdahoSprings CO
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Posted: 20 Jul 2020 at 4:53pm |
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It seems working around the crank shaft with liner and compressor would be so tight as to be impossible. It is possible?
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DMiller
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Posted: 20 Jul 2020 at 5:40pm |
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Dry fit then remove sleeves, Load on the bench then reinstall as assemblies. Will notice the sleeves have a chamfer on lower lip, NOT on upper.
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