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Did I go wrong???? |
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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Posted: 30 May 2022 at 12:15pm |
If I use HV7 injectors what is standard timing for those? Is it 1.484 or 1.460????
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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PM sent Gemdozer
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gemdozer
Orange Level Joined: 17 Sep 2009 Points: 942 |
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HI I have some HV6 injectors
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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Since no one else seems to be running the HV7s in their 2-71, does anybody have any good HV6s they want to sell?
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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Is anyone else out there running HV7s in their 271? If so any issues?
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CAL(KS)
Orange Level Joined: 18 Sep 2009 Location: Chapman, KS Points: 3734 |
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just a little more fuel, shouldnt hurt anything, but if you can stay with same size.
Edited by CAL(KS) - 28 Apr 2022 at 10:10am |
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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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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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https://www.allischalmers.com/forum/hv7-injectors_topic187206_post1597904.html?KW=HV7#1597904
I thought the HV7s were OK to run in the 271 without problems???? I guess I’m confused. I surely don’t want to damage the engine after all this. Edited by COD - 28 Apr 2022 at 9:18am |
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Codger
Orange Level Joined: 23 Dec 2020 Location: Illinois Points: 1791 |
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Std. timing and install a pyrometer. You are going to be dumping more fuel into that engine against a push and it will smoke more with additional heat in the exhaust. A pyro will help you keep this in check.
Myself I would stay with the originals HV6 series. A turbocharged engine takes to uprating of injectors much better than a natural aspirated engine does. Hate to see you melt your hard work down.
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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Just in case anyone else runs into this issue this may save you the trouble I went through to find out for certain on the piston rings. I contacted Intersate-McBee’s customer service and explained the issue to them. The first two people were as unsure as I was. They finally got an answer back to me today that it doesn’t matter up or down on the compression rings.
On another note, my next question is this; I’m using HV7 injectors instead of the HV6. Reason being I got some rebuilt ones for a really cheap price. What should I set the injector timing to for the HV7s? |
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Codger
Orange Level Joined: 23 Dec 2020 Location: Illinois Points: 1791 |
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they may be correct if no markings. Most compression rings have a slight taper which goes to the top but not all.
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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OK guys I have another dumb question. I’m in the process of reassembling the engine. I am ready to put the rings on the pistons. I have looked all over the four compression rings and do not see any markings that would denote the “top” side of the rings. It’s Interstate McBee brand. I called the place I bought the kit from and they said it didn’t matter which way was up but didn’t give me a fuzzy feeling they knew what they were talking about. Anybody know for sure on this?
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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Great idea! I didn’t think of moving the keyway around.
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Codger
Orange Level Joined: 23 Dec 2020 Location: Illinois Points: 1791 |
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Most any machine shop could cut another Woodruff keyway into the shaft 180 degrees opposite from the existing worn keyway(s). I just had that performed on an overhead crane hoist last week rather than spend $340.00 from Budgit Hoists for a replacement shaft.
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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Oops. Yes keyway. I didn’t catch the autocorrect had changed it.
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DMiller
Orange Level Access Joined: 14 Sep 2009 Location: Hermann, Mo Points: 29511 |
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"Key" way??
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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The forks are in great shape. My problem is the jetway on the long shaft said is worn causing a lot of play.
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Codger
Orange Level Joined: 23 Dec 2020 Location: Illinois Points: 1791 |
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The throwout bearing fork is a common part to build up with either weld, or brass.
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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Anybody got one of these in good shape they are willing to sell???? If so PM me
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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It had the rear aux hydraulic hoses on it. Figured it was pulling a disc at some point.
Anybody else got any feedback on the cam bearings??? Edited by COD - 27 Mar 2022 at 6:28pm |
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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The scrappers were next in line to get it. It’s still a solid old dozer seems like. If water hadn’t gotten into that one cylinder it would have fired off. I like to save this old iron. It was built in days where things were simple and made to last. You can take a set of wrenches and sockets and work on anything on it. Glad it brought back memories for you.
Edited by COD - 27 Mar 2022 at 6:28pm |
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fjdrill
Silver Level Access Joined: 13 May 2012 Location: Alabama Points: 266 |
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I’m thinking that my dad’s old dozer. Bought about 1965 in Amory at a sale at one the AC dealer auctions. First dozer I ran pulling a Rome new ground disc. About 1969-70 ( I was like10 years old at the time) sold to a local. Then a Mennonite had it in Geiger Al Wondering were it went. Figured scrappers had gotten it.
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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Thought about trimming the bearings off but had rather leave them sticking a little past the bores unless it would be an issue. I don’t see where it would be but I’ve never seen an engine with bearings sticking out past the bores.
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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I got it from a fellow that was South of Dekalb, MS so it wasn’t far from Scooba.
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steve(ill)
Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 77742 |
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Dewey , if the bearing OD is the same and will fit in the block... I would think you could take a cutoff wheel and trim some off the bearings "if needed"... maybe OK they way they are.
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Like them all, but love the "B"s.
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fjdrill
Silver Level Access Joined: 13 May 2012 Location: Alabama Points: 266 |
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Did that 5 come from over around Scooba?
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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Got a question. My block serial number is prior to them using the longer cam bearings. Mine are 1-1/8 long and the “newer” blocks are 1-1/2” long cam bearings. The blocks appear to be the same part number and so do the cams (according to the part numbers). The 1-1/8” standard size is made from unobtainium and not available. They make a .015 under bearing for $35 per bearing. Problem is no one around here grinds camshafts. The 1-1/2” wide ones are $11 per bearing and standard size is available. Can I use the 1-1/2” wide ones as long as the oil holes line up? Basically about 1/4” of the bearing will be sticking on the inside of the block past the bore for the cam bearings. The oil holes in the 1-1/2” wide bearings appear to be off center so I think they would line up. I mic’ed my cam bearing journals and they are within spec but I may polish them a little in a jig to spin the cam using a drill and a socket.
Any thoughts guys? |
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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After talking to pc industries, Heavy Duty kits, and diesel pro power, all three confirmed the part number from the liners I removed are a standard size three. I figure if it ran with them before it will again. Putting the micrometer on everything else, it appears this engine was rebuilt shortly before it was parked. There is also no ring ridge whatsoever in the liners. If water hadn’t gotten into that one cylinder this thing would have popped off and ran for years I believe.
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Codger
Orange Level Joined: 23 Dec 2020 Location: Illinois Points: 1791 |
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This is where the block and liners need measured by someone that has the tools and experience with the Detroit engine series. Not being sarcastic or anything of the type but the block bore needs to be known, and round to fit correct liners, then protrusion of the liners etc. More to it than just a guess. Any competent machine shop on diesel engines should be able to measure it up for you to eliminate guesswork.
Very easy engine to build but you have to know the correct sized parts are going into it.
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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Well after calling several places, I got several different answers so I’m even more confused now.
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COD
Bronze Level Joined: 01 Jan 2022 Location: Mississippi Points: 52 |
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Found this on PC Industries website. Is this info correct? I don’t have a micrometer large enough to measure the outside diameter of the old sleeves.
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