HD7GB
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=147653
Printed Date: 03 Jun 2024 at 11:29pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: HD7GB
Posted By: Cannoncollector
Subject: HD7GB
Date Posted: 18 Feb 2018 at 8:40am
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I just saved a diamond in the rough from recycling. I had one of these in the past it was a really neat and nostalgic Machine with a 6 cylinder diesel turbo. Now the reason she was parked was diesel fuel in the engine oil but I'm starting to think it could have been transmission fluid. My plan is to pull the pan and see what's getting in there. Anybody have any ideas? 
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Replies:
Posted By: Cannoncollector
Date Posted: 18 Feb 2018 at 8:51am
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Posted By: DMiller
Date Posted: 18 Feb 2018 at 8:52am
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These used a Stanadyne Inj Pump which is NOTORIOUS for fuel/oil dilution, there is limited access for any trans oil to make it to the engine as the coolers are separate on the block, possibly into coolant but not so much to engine oil. Wish Mine had been a G-B, parts are a TAD bit easier to find. |
Posted By: Cannoncollector
Date Posted: 18 Feb 2018 at 9:00am
| Thanks for the tip yeah I guess it has those double umbrella type lip seals correct? |
Posted By: HD6GTOM
Date Posted: 18 Feb 2018 at 10:58pm
| Yep. Good old mochines. |
Posted By: DMiller
Date Posted: 19 Feb 2018 at 4:43am
| Verify it has the same style inj pump as noted, if does and fuel in oil then time for the seals. Been sitting a LONG time, will be time to drain and clear screens, drain fuel tank and start over with clean fluids. |
Posted By: dustydoo
Date Posted: 19 Feb 2018 at 5:29am
| Nice find ! I hope it ends up being just seals for you :) |
Posted By: jerbob
Date Posted: 19 Feb 2018 at 10:44am
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Congratulation and welcome to the forum cannon collector. Nice looking tractor. Looking forward to seeing more on your new baby and getting any issues sorted out. As a novice I read most all posts as they all contain some good information and problem solving methods. Good luck. |
Posted By: exSW
Date Posted: 19 Feb 2018 at 6:33pm
| Nice score. I got a feeling you got lucky. |
Posted By: Cannoncollector
Date Posted: 23 Feb 2018 at 7:22pm
Well sure enough the seal on the pump side was torn and the one on the oil side was not looking good either so the seals are done and I did run the engine it seems to run okay once it warmed up, exhaust manifold and turbo is off getting welding up rust holes if he can do it. I don't think there's any manifold for that on the market right now
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Posted By: Randaleky
Date Posted: 23 Feb 2018 at 8:02pm
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what size is this loader ? |
Posted By: Randaleky
Date Posted: 23 Feb 2018 at 8:05pm
| sorry, I see now it is hd7gb. very nice looking machine!!! |
Posted By: HD6GTOM
Date Posted: 24 Feb 2018 at 12:18am
| If you ever drop the pans look for snakes. I am on the edge of rattlesnake territory here. I always took a big hammer and gave my pans a big ol whack or 2. If they are in there they will rattle at you. Experience speaking here. |
Posted By: michale34
Date Posted: 25 Feb 2018 at 9:10am
| Here we have copper heads and cotton mouths that love to turn machines in to there homes. We were digging dirt off the river one time in the early summer .snakes was everyware .they would even lay up on the tracks to sun . |
Posted By: jerbob
Date Posted: 25 Feb 2018 at 5:43pm
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When it warms up here inMichigan,, I'm going to drop the pans to clear them out. I have a HD16DC. Any tricks to dropping pans AND getting them back on?? |
Posted By: CAL(KS)
Date Posted: 25 Feb 2018 at 7:20pm
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concrete and floor jack for engine pan, its dang heavy. ------------- 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 |
Posted By: Ray54
Date Posted: 25 Feb 2018 at 9:48pm
| Use 2 cable come along from one track to other down under the pan. Worked better than I hoped when helping uncle with his HD 21 and FA 31 over the years. |
Posted By: jerbob
Date Posted: 26 Feb 2018 at 5:59am
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Wish I had the concrete floor Cal but don't. Getting off I can vet but putting back on will be a challenge. Thank you |
Posted By: jerbob
Date Posted: 26 Feb 2018 at 6:01am
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I can see that working. Pretty good idea and thank you. How much do ya thing a belly pan for a HD16 Weighs? |
Posted By: Lazyts
Date Posted: 26 Feb 2018 at 11:16am
| I throw down a piece of plywood, then use a floor jack when working outside. Lots of guys use straps under the pan and use a crane to lift and lower it. Be careful- a former co-worker of mine was killed by a D9 belly pan. |
Posted By: jerbob
Date Posted: 26 Feb 2018 at 11:20am
| Good advice. Doubly do on safety. |
Posted By: JohnCO
Date Posted: 26 Feb 2018 at 10:36pm
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A transmission jack works great to lower and replace a pan, if you have one or can borrow one. ------------- "If at first you don't succeed, get a bigger hammer" Allis Express participant |
Posted By: jerbob
Date Posted: 27 Feb 2018 at 6:22am
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Another good idea John. Thank you. I think a flood jack, on a sheet of plywood is my best bet to take off pan. Then a couple of cargo straps under the pan and attached to the tracks to get pan back up high enough to get jack back under it to put back on. |
Posted By: jerbob
Date Posted: 27 Feb 2018 at 6:23am
| Damn spell check. Floor Jack. |
Posted By: JohnCO
Date Posted: 28 Feb 2018 at 10:14pm
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Flood or floor jack, 2d best way to do it, just harder to balance. ------------- "If at first you don't succeed, get a bigger hammer" Allis Express participant |
Posted By: jerbob
Date Posted: 01 Mar 2018 at 6:14am
| Hey John, don't have a transmission jack but willcheck it out. |
Posted By: DMiller
Date Posted: 01 Mar 2018 at 6:46am
| I used some 3/4" OSB and a regular auto floor jack. Made a saddle X member to sit on the normal saddle to support the weight better from some scrap 2" channel steel, just tack welded it to the floor jack saddle until was done then ground off the tacks. |
Posted By: jerbob
Date Posted: 01 Mar 2018 at 8:33am
I can visualize that DMiller. Thank you. |
DMiller wrote:Posted By: Cannoncollector
Date Posted: 02 Mar 2018 at 4:05pm
| Some good info on pan removal, I usually use a floor Jack. Taking this one off I got the bolts from the sides, A.C. seems to use some fine thread here and there so it was slow going! Uggg!, after the bols were out I had to give it a gentle pry it was stuck on filled with crudd!. |
Posted By: Cannoncollector
Date Posted: 02 Mar 2018 at 4:11pm
| Not to many treacherous snake problems here, but mice on the hand!, so i started it up to drive off the trailer, and lordy thank God the trans was feeling great and even the steering clutches feeling great!, but I'm looking hydraulic bucket control because the main hard hydraulic tubes were rusted out dues to large mouse colony, |
Posted By: exSW
Date Posted: 02 Mar 2018 at 6:28pm
 More pictures?
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Posted By: Cannoncollector
Date Posted: 03 Mar 2018 at 7:23am
 
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Posted By: Cannoncollector
Date Posted: 03 Mar 2018 at 7:24am
| Anybody that has one of these better keep those hydraulic tubes clean where they run into the battery compartment area or saddle tank the other sides of the lines that are exposed in the open are clean as a whistle I bought some tubing pre bent on an angle and my Pro welder is splicing in new corners as we speak |
Posted By: Cannoncollector
Date Posted: 03 Mar 2018 at 7:27am
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All the rust was air hammered and knocked off and being painted. The shifter Tower is being rebuilt with some new pins and bushings they had a pretty high quality set up from the factory even some needle roller bearings and seals on shafts and Bell cranks very high tech, I've replaced with new oil impregnated bronze bushings and adding grease zerks |
Posted By: Cannoncollector
Date Posted: 03 Mar 2018 at 7:30am
| Now specked out some brand new aftermarket Ripper Shanks that fit cat 953 are going to fit quite nicely stay tuned for the video of this thing running like a raped ape and the Ripper shanks ripping and the four and one bucket claming and dirt flying, surely to turn any man green with envy lol |
Posted By: DMiller
Date Posted: 03 Mar 2018 at 9:11am
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Posted By: Cannoncollector
Date Posted: 07 Mar 2018 at 2:34pm
Update I had the lines repaired and I installed them. You can see the welds where new elbows were installed.
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Posted By: Cannoncollector
Date Posted: 07 Mar 2018 at 2:35pm
| Does anybody have ideas how to keep mice out of those perfect areas for nesting?.. I was thinking about filling in the areas with that insulation in a can that expands or slopping lots of nasty grease in there |
Posted By: Cannoncollector
Date Posted: 07 Mar 2018 at 2:38pm
And then I celebrated by taking the hd4 for a spin 😥😂
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Posted By: DMiller
Date Posted: 07 Mar 2018 at 2:58pm
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Well placed often replaced moth balls |
Posted By: DMiller
Date Posted: 07 Mar 2018 at 3:00pm
| Segments look pretty solid, rails look pretty well used up as well the shoes on them. Be wary when turning if much slack in them as the old snaky rails like to roll off. |
Posted By: JohnCO
Date Posted: 07 Mar 2018 at 3:34pm
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I saw some spray on foam at the local hardware store. It had Jalipeno flavor it it which is supposed to repel mice and insects, unless, of course they are from Mexico... ------------- "If at first you don't succeed, get a bigger hammer" Allis Express participant |
Posted By: Cannoncollector
Date Posted: 09 Mar 2018 at 5:26pm
| DMilller yes the rails are lean and the pads are too but the sprockets are new as well as the pins and bushings |
Posted By: Cannoncollector
Date Posted: 09 Mar 2018 at 5:27pm
| And I didn't know till now they did flavored expanding insulation in a can to deter chewing pests good information |
Posted By: Josh H
Date Posted: 10 Mar 2018 at 2:39pm
| Nice find. Birds nested in my cat 943 one time. snakes were on it after the bird eggs. Used it on a job and they were sticking their head out all over trying to get out. some got out through hole in belly pan while running it. |
Posted By: Steve allis dozer
Date Posted: 10 Mar 2018 at 5:35pm
| I like the HD4 thats a great photo |
Posted By: Cannoncollector
Date Posted: 04 Apr 2018 at 6:07am
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Update.. well I'm making some progress, unfortunately my engine oil pressure is low probably due to previous owner running it with fuel diluted engine oil, due to leaky injection pump seals., and I have a smoky cylinder and slight burnt valve. But upon testing out the transmission, I noticed that my low gear is not all that low after all, too fast and even though I can get a full bucket of compacted millings digging in, it really does not want to easily spin the tracks.. Do I have a weak trans?, is my question 
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Posted By: david weldon
Date Posted: 04 Apr 2018 at 8:27am
| Hello I would love to see a video of it working thanks David. |