HD6G- stuck engine.
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=192437
Printed Date: 23 Nov 2024 at 10:37pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: HD6G- stuck engine.
Posted By: RustyCup
Subject: HD6G- stuck engine.
Date Posted: 17 Dec 2022 at 8:26pm
| Hey guys and gals of the AC forum. I recently purchased a HD6G trackloader. It has a stuck engine. I was told its been sitting about 20 years or so. I took of the intake manifold and got some diesel down there, one of the valves was open so that cylinder is soaking in diesel right now, but the other three had the valves closed, I poured some diesel down there in hope that some might make it to the cylinder. Would there be any other way to soak these cylinders down? I didn't really want to pull the injectors, and what would be the best way to manually turn this engine over, terrible access to the front of the motor..... |
Replies:
Posted By: gemdozer
Date Posted: 18 Dec 2022 at 2:03pm
| You could removed the startor and try turning the motor by ring gear with big screw driver but make sure the master cluch is desangaged,the transmission and hydrolic lever are in neutral position. |
Posted By: doctorcorey
Date Posted: 24 Dec 2022 at 9:35am
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Can you move the flywheel at all, even a tad? Use something thinner, like free all penetrating oil, it will seep through the closed valves with a little time, and You can also pull the valve cover and 'pop' the intakes open to let the fluid flow in to the cylinder. Easy to check for stuck valves when doing it this way, too. My engine was stuck nearly solid, but after some time, I was able to work it back and forth with a big pry bar on the flywheel teeth. Easier to reach (and more leverage) if you remove the starter and go in through there. ------------- Semper Fi USMC 1958 HD6G, 1959 MF 203 loader, 1960 Case 420B Backhoe, MF 65 Tractor/Loader Diesel |
Posted By: WF owner
Date Posted: 24 Dec 2022 at 11:27am
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Was the exhaust covered when it was sitting? if it wasn't, you are probably wasting your time trying to free it. Everyone I have ever seen with an uncovered exhaust; the block or sleeve (in a sleeved engine) was severely rusted and need to be bored or resleeved. If you take the injector out, try a borescope camera and you will have a better idea what you are dealing with.
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Posted By: PaulB
Date Posted: 25 Dec 2022 at 6:58pm
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If you have the intake manifold off, remove the valve cover and use a bar to force down an intake valve and pour in some diesel fuel. If the engine is stuck, there's not much chance of turning it with a bar at the flywheel teeth. ------------- 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 |
Posted By: doctorcorey
Date Posted: 25 Dec 2022 at 10:49pm
 ------------- Semper Fi USMC 1958 HD6G, 1959 MF 203 loader, 1960 Case 420B Backhoe, MF 65 Tractor/Loader Diesel |
PaulB wrote: