Unearthing an HD7
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=83673
Printed Date: 29 Jun 2025 at 8:46pm Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Unearthing an HD7
Posted By: rozmiarek03
Subject: Unearthing an HD7
Date Posted: 23 Jan 2014 at 1:39am
This is me and the old man moving this poor crawler to an auction line over the hill today.
http://rozmiarek03.com/" rel="nofollow - http://rozmiarek03.com
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Replies:
Posted By: JC-WI
Date Posted: 23 Jan 2014 at 4:50am
Looks like its a little cool down there... and no snow.
Windchill suppose to be -35 below this morning...
So, when you got the HD7 out of its hole, did the tracks roll?
What was the story on the old girl?
engine siezed tight?
you said moved it over the hill to an auction line... somebody else selling out or are you guys cleaning up?
and when is this auction going to take place?
More info please...
Was hoping for close up pics of it...
Thanks for letting the fellers on this site know about it...
------------- He who says there is no evil has already deceived himself The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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Posted By: Coke-in-MN
Date Posted: 23 Jan 2014 at 3:38pm
HD7 with a 3-71 Detroit - seems someone was looking for one for parts just a little back
------------- Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something. "Challenges are what make life interesting; overcoming them is what makes life meaningful."
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Posted By: rozmiarek03
Date Posted: 23 Jan 2014 at 7:16pm
Hello guys,
Its not so cold here, 40's but with 40mph winds! The HD7 is owned by my step father who sadly has had several strokes and is not getting any better with age. I can't ask him for answers but from what I have heard it has probably been parked since the early 80's. I guess he used it to remove some trees, fence lines snow etc. and one winter the clutches burnt out again and it was parked until yesterday. We are going to tinker with the engine next week, I'm very opptimistic its going to purr again. Anyhow since farming has been leased out and all good equipment out here is just sitting around giving the mice a home its time to let everything go. And since were having an auction its time to clean things up. The auction is March 4, 2014, sad day. The stepfather does have 35ish 2 cylinder johny poppers that are staying but otherwise it all goes.
Included some closer-ups of the HD7 and a few other things, D-7 kitty, roadgrader, and a scraper I've made lots of memories with. http://www.rozmiarek03.com" rel="nofollow - http://www.rozmiarek03.com
Thanks for the intrest. Ted,
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Posted By: rozmiarek03
Date Posted: 23 Jan 2014 at 7:27pm
JC,
Almost forgot, yes the tracks free rolled, damn near crapped myself! Also on these pictures if you view the larger size on the pictures option I think the details may be alright.
Ted
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Posted By: JC-WI
Date Posted: 23 Jan 2014 at 8:24pm
Ted,...Tracks rolling freely are a plus.
I didn't see any pics of the D-7, grader, or scraper.
Is the auction going to be advertised on the web when the time comes?
To bad there is so many miles between here and there.
Thanks for the close up pics of the HD7,
------------- He who says there is no evil has already deceived himself The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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Posted By: rozmiarek03
Date Posted: 23 Jan 2014 at 10:10pm
Hey JC,
The auctioneers website is http://farmauction.net/" rel="nofollow - http://farmauction.net/ . He just came out and took photos this afternoon so it might be a few days before he adds anything to the 3/4/14 auction. Don't know if he does proxy bids or whatever they are called. If I wasn't so poor at the moment I would buy the critter, but the only thing cheap about a dozer project is buying it. Speaking of that I'm still trying to find bottom rollers for an IHC T340 (named munch) that I'm playing with. I hope the HD7 finds a home other than a scrapers yard, to bad my orders are it goes on the auction.
Ted
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Posted By: DiyDave
Date Posted: 24 Jan 2014 at 5:49am
If it was me, I'd lose that T340, and bid on the AC!
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Posted By: rozmiarek03
Date Posted: 27 Jan 2014 at 11:53am
i know. the ihc kinda sorta ish just became my problem
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Posted By: JC-WI
Date Posted: 27 Jan 2014 at 9:52pm
Did it 'kinda' find itself a home at your place? LOL
------------- He who says there is no evil has already deceived himself The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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Posted By: JC-WI
Date Posted: 10 Feb 2014 at 11:15am
Was just over on the auction site http://farmauction.net/" rel="nofollow - http://farmauction.net/ , Why aren't you taking over?
You can own land but, it will take years for anyone to get momentum back up to where this place was at if anyone of the family wanted to take over... Can't be dry forever...
Well, I am glad it isn't my call. Got som pieces there that are very interesting... just a fact that theres to many miles between here and there.
Cat Challenger 55 & 65e & mt535
JD 8100 MFWD
Kenworth W900 1994 & 1995 -94 has a bad engine.
JD 9500 combine
Krause 1950 33 ft. Tandem Disc
JD 960 40’ Field Cultivator w/ Hrws
Wilrich 32 ft. Chisel, spring shanks
CIH 165 8 bottom roll over plow
Caterpillar D7 Crawler Tractor, Dozer, running, good
Cat No.40 Dirt Mover
1954 Cat 12 Road Grader, Runs Good, Tires fair, Pony Eng., sn8T142861945
AC HD7 Crawler Tractor, Dozer, not presently running
And a whole long list of other machinery....
------------- He who says there is no evil has already deceived himself The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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Posted By: rozmiarek03
Date Posted: 10 Feb 2014 at 11:37am
Hi JC,
Well I'm number 5 in line and getting started in farming is super expensive... Millions here. Was going to try to get the HD7 to turn over, but its been sub zero most of the time and windchills! Tommorow will be warmer finally so I will postpone my endless coyote hunting and give it a try. Hope things are well your way.
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Posted By: injpumpEd
Date Posted: 11 Feb 2014 at 12:34pm
Before trying to start that old jimmy diesel, take the valve cover off and make sure the injector control racks are moving freely. It's likely stuck in wide open throttle, so if it starts up, it'll run away. It'll really lose value then lol! Be careful.
------------- 210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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Posted By: JC-WI
Date Posted: 08 Mar 2014 at 2:23pm
Did any of you guys go to this auction?
I knew it was in March but didn't think about it till today.
Hope the old equipment didn't get get bought up by the scrappers .
03-04-14 Wehtje Farms Equipment Auction
Tuesday March 4, 2014 Sale Time: 10:35 am!
Located: from Hemingford, Nebraska,
------------- He who says there is no evil has already deceived himself The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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Posted By: Amos
Date Posted: 08 Mar 2014 at 4:05pm
I was wondering what the grader sold for ??
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Posted By: rozmiarek03
Date Posted: 11 Mar 2014 at 10:37pm
Hey all,
I was running a loader at the auction and missed pretty much everything, found out later my brother bought the HD7! Not sure why he just thought it was going to cheap and all things with tracks are nifty. The road grader went for 5,100, I had gotten that pony engine running perfect after just pull starting it for 12+ years don't know why I didn't fix it sooner.
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Posted By: JC-WI
Date Posted: 11 Mar 2014 at 10:46pm
Ted, thanks for the update... Glad it didn't hit the scrap pile.
.... Now you get to help your brother in getting it going.  
JC
------------- He who says there is no evil has already deceived himself The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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Posted By: rozmiarek03
Date Posted: 12 Mar 2014 at 7:22pm
Hey JC,
Ya, in fact today I had time and spent six or so hours on it.. Removed the entire blade assembly, not so easy, then the grill and radiator. Of course everything was seized tight to put it lightly. Got to the crank shaft and after much persuasion I can only get one full turn then its stuck tight.
Anybody have some ideas on what I should check next?
I ran into something similar once before on an old hercules engine and the problem their was a seized magneto of all things....LOL
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Posted By: DiyDave
Date Posted: 13 Mar 2014 at 5:52am
If it moving a full turn, it is likely a bent rod, making contact somewhere in its travel. Just a SWAG, but I'll stick to it till proved wrong.
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Posted By: CAL(KS)
Date Posted: 13 Mar 2014 at 6:08am
a rusted cylinder could cause the same problem. can you turn the crank back the other way. one nice thing about gm diesels you can remove the air box covers and see if the piston is traveling up and down, that would eliminate the broken rod but not a bent one.
------------- 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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Posted By: gemdozer
Date Posted: 13 Mar 2014 at 7:56am
The HD7 with 371 DETROIT could have a rotor crack in blower
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Posted By: rozmiarek03
Date Posted: 13 Mar 2014 at 10:21am
Thanks guys gives me some good leads. And yes I can move it back clockwise the same full turn then solid resistance again. I pulled the valve cover and tried to free the fuel rack and promptly sheared a roll pin but thats minor stuff. Thought about a good diesel soak for a few days but ya I'm thinking its a bit more then corrosien. When I drained a bit of oil yesterday their wasn't even a drop of water at the bottom of the pan which is interesting.
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Posted By: JC-WI
Date Posted: 13 Mar 2014 at 11:51am
Take the airbox covers off and look at the pistons via the air intake hole in the sleeve... maybe you might find crud dirt etc? I never have tried to look up to the top in a cylinder like that but maybe a bit of rust at top end?..
Had carbon fall down on a JD R diesel and it ws at the bottom and would not allow the cylinder to go over till I took the head offand got the carbon out.
Keep looking... Check to see if the clutch is disengaged too...
Are you sure you are going a full 360? not just 40 degrees? or 280... that could be stuck valves... all valves on top are exhaust valves. Let us know what you find... JC
------------- He who says there is no evil has already deceived himself The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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Posted By: rozmiarek03
Date Posted: 13 Mar 2014 at 2:23pm
Hey all!
It's unseized!!!! Went in through the exhaust and found the manifold packed with millet and mouse crap. Took that off, blew out the ports, manifold back on, two gallons of diesel and waited. About five minutes later all is GOOD. Will post some pictures later.
Ted
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Posted By: DiyDave
Date Posted: 13 Mar 2014 at 7:30pm
Congrats, glad to be proven wrong!
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Posted By: rozmiarek03
Date Posted: 13 Mar 2014 at 9:50pm
Uh ohh.. now to the starter.. The dyer drive shift lever cover is fubar and I can't get the starter to do anything. Doesn't look good, but I did get three diesel leaks found and fixed.
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Posted By: TREVMAN
Date Posted: 13 Mar 2014 at 10:56pm
Careful when you get it going it doesn't go wot on you, jimmys will do that. Have the intake air cleaner off and have a clipboard handy to suffocate it, good luck and glad it stayed in the family, Trev.
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Posted By: rozmiarek03
Date Posted: 13 Mar 2014 at 10:58pm
http://www.rozmiarek03.com/cgi-bin/photoalbum/view_album/260010" rel="nofollow -
Some photos of what I found today on that 3-71.
http://www.rozmiarek03.com/cgi-bin/photoalbum/view_album/260010
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Posted By: JohnCO
Date Posted: 14 Mar 2014 at 1:09am
Good work! Hope the starter isn't too big a problem. Looks like it was once orange.
------------- "If at first you don't succeed, get a bigger hammer" Allis Express participant
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Posted By: JC-WI
Date Posted: 14 Mar 2014 at 1:24am
Ted, Looks like you really are after that old girl to get it going. Sure changed the appearance taking the blade off. Glade to hear she is going all the way around now.
On those old crawlers, they were foot engage of the pinion and then it would contact the contacts. mayb some corrosion? Check and see if the brush springs are still holding the brushes in place. Clean the armeture... make sure you have current down at the starter.
Thanks for keeping us updated... I want to see a vid of her rolling smoke. LOL
------------- He who says there is no evil has already deceived himself The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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Posted By: rozmiarek03
Date Posted: 14 Mar 2014 at 8:48pm
Hey fellas,
Waking up this morning I was dreading the thought of having to yank the motor at worse to get the starter out of its cozy little area. Shoot I had it out in less then an hour, over thought how bad the job was gonna be. Next tore it apart and it was obvious from the rust why this thing wasnt working. And JC, on that foot engage pinion deal, or dyer drive I think, it was held together with one of four bolts and a cotter key for a 5/16" pin. Did some tapping, major cleaning and used a 6" stainless exhaust clamp to replace the rusted through band over the brushes. Thought that was a nice touch  . It works now. Tommorow I'm ready to go for the start.
Some pictures, oh and guess which of the two dogs is the house dog.
http://www.rozmiarek03.com/cgi-bin/photoalbum/view_album/260016" rel="nofollow - http://www.rozmiarek03.com/cgi-bin/photoalbum/view_album/260016
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Posted By: Orange Blood
Date Posted: 14 Mar 2014 at 9:43pm
So What I don't understand is 'ol Joe (I assume that your brother) has it listed on ebay, yet you are tearing it apart???
http://www.ebay.com/itm/Allis-chalmers-HD-7-dozer-/321348093461?pt=BI_Heavy_Equipment_Parts&hash=item4ad1d6c615" rel="nofollow - http://www.ebay.com/itm/Allis-chalmers-HD-7-dozer-/321348093461?pt=BI_Heavy_Equipment_Parts&hash=item4ad1d6c615
------------- Still in use: HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060 Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7
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Posted By: rozmiarek03
Date Posted: 14 Mar 2014 at 9:57pm
Thats correct, I have some time to kill, causing no harm and having fun doing it. He listed it before I got a wild hair up my bung to make it run, so just donating time to the greater cause. And again it's fun!
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Posted By: JC-WI
Date Posted: 14 Mar 2014 at 9:57pm
Like that stainless ex. clamp... nice touch, I am going to have to remember that one next time. LOL
Funny what people do for improvising... like the cotterkey for a pin... LOL
Your getting there... One of these times you will have smoke rolling.
OB, maybe he is getting it ready for the next owner...? Maybe he wants to hear it run?
------------- He who says there is no evil has already deceived himself The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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Posted By: Orange Blood
Date Posted: 14 Mar 2014 at 10:05pm
Just be careful. If I thought I was buying a complete non running HD7 with the clutch covers open, and arrived to pick it up, and found someone had been wrenching all over it, and breaking roll pins, putting exhaust clamps on the starter, and other stuff, since the pictures were taken, I would be pretty pissed off. It' not that you don't know what you are doing, seems you do, but I don't know that as the buyer, but I am no longer buying the machine I think I am.
I know you are doing it with the best of intentions, but now the machine is misrepresented in the listing. Once you post something for sale, IMHO you shouldn't touch it until the buyer arrives, or the listing expires.
------------- Still in use: HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060 Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7
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Posted By: rozmiarek03
Date Posted: 14 Mar 2014 at 10:19pm
I see your point. Better buy it or leave it alone.
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Posted By: rozmiarek03
Date Posted: 18 Mar 2014 at 11:19am
sweet the dozer didnt sell. now i can go back to work and it won't be listed again ever!
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Posted By: JohnCO
Date Posted: 18 Mar 2014 at 2:19pm
Please keep us updated, I want to see the smoke too. Maybe the reason it didn't sell was it was listed as a book!
------------- "If at first you don't succeed, get a bigger hammer" Allis Express participant
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Posted By: JC-WI
Date Posted: 18 Mar 2014 at 3:16pm
John.. hushhh
maybe it was just meant to be that way in his favor .
OK Ted, lets see the smoke roll now... LOL
------------- He who says there is no evil has already deceived himself The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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Posted By: rozmiarek03
Date Posted: 18 Mar 2014 at 8:58pm
we had a blizzaed come through this morning so it was about hide out qnd wait. next i think pull starting is the way. the starter can give 30,000 revolutions but takes forever.
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Posted By: JohnCO
Date Posted: 18 Mar 2014 at 11:29pm
If you've got the starter together and ready to reinstall, I'd do that first and try it out with a snort (a very small snort) of either. It should fire on either and maybe keep running on fuel. It's a lot harder to take care of emergencies if it's being towed then just sitting. Be ready to pull the air cut off (make sure it works first) above the supercharger. Hope you have some warm weather the rest of the week.
------------- "If at first you don't succeed, get a bigger hammer" Allis Express participant
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