MK II 3700 replacing the 3500
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=154934
Printed Date: 07 Feb 2025 at 11:52am
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Topic: MK II 3700 replacing the 3500
Posted By: Kevin210
Subject: MK II 3700 replacing the 3500
Date Posted: 20 Oct 2018 at 5:11pm
|
Ok guys,I went ahead and got the 3700 motor for the 210 this weekend. Yes I will have to use some parts and pieces from the 3500 on the 3700 but that doesn't seem to be an issue as best I can tell.I'm going to take some video's of this little project and also attempt to put them on you tube as time goes. |
Replies:
Posted By: DrAllis
Date Posted: 20 Oct 2018 at 5:20pm
| What about the hydraulic pump drive ??? |
Posted By: Kevin210
Date Posted: 20 Oct 2018 at 8:48pm
| Well Doc the 3700 or at least the does has a cover the opening for the pump,so I took it today just to satisfy my curiosity and low and behold there is a gear in there for the hydraulic pump. |
Posted By: Mikez
Date Posted: 20 Oct 2018 at 9:11pm
| Welcome to the forum, good luck and we all would like to see your pictures |
Posted By: Kevin210
Date Posted: 20 Oct 2018 at 9:22pm
|
I'll try to get all the words in this time Doc,lol. This particular engine has a cover over the pump drive opening and when i opened it today there is a gear in there,so I'm thinking that should run the pump.I know the rear plate will have to change too. Also the radiator hose is on opposite sides,and the alternator bracket.I will have to use my starter as the other motor didn't have one on it. I know this won't be an overnight project but I think it work out. |
Posted By: DrAllis
Date Posted: 20 Oct 2018 at 10:09pm
| You are one lucky individual. Now, all you have to do is make the front plate mounting ears fit the side frames of the tractor, swap the rear plate/flywheel and reconfigure the radiator lower outlet. |
Posted By: Calvin Schmidt
Date Posted: 21 Oct 2018 at 8:17am
 A few pictures that might help. 3500 MK II On Highway spec engine going into a 220.I added the intercooler so had to move the lower rad inlet and swap sides with alternator. This engine also had the cover plate and the hydraulic will bolt up.
  ------------- Nothing is impossible if it is properly financed |
Posted By: Kevin210
Date Posted: 21 Oct 2018 at 9:36am
| So looking at Calvin's project I'm kind of beginning to think maybe this is an 3500 instead of a 3700 since my motor has the tag in the same place,not sure if that means anything,lower radiator and alternator bracket too,so like I said not an over night project but very doable. |
Posted By: injpumpEd
Date Posted: 21 Oct 2018 at 10:04am
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3500 no intercooler, 3700 has intercooler. ------------- 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! |
Posted By: Kevin210
Date Posted: 21 Oct 2018 at 11:18am
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Then this motor I bought is a 3700.It has the cooler on it like the one on Calvin's. Might ask Calvin what pump that is on his,I LIKE IT!!!!!. |
Posted By: SteveM C/IL
Date Posted: 21 Oct 2018 at 12:09pm
| Kevin,keep the Roosa. You'll be ahead in the end. |
Posted By: Calvin Schmidt
Date Posted: 21 Oct 2018 at 12:57pm
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My 3500 MK II was on a standby waterpump. It showed 82 hrs total. This injection pump has been great so far but I've heard lots of negative comments with it on combine engines. Starts good. .048 injector tips. It came with the small water pump and no intercooler. I added the intercooler and big water pump. Stock injector pump setting and dynos 190 hp. ------------- Nothing is impossible if it is properly financed |
Posted By: Kevin210
Date Posted: 23 Oct 2018 at 7:14pm
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OK guys,just a quick update on the engine swap.I'm hoping maybe tomorrow I will get the motor out,not sure though,but maybe. |
Posted By: Kevin210
Date Posted: 27 Oct 2018 at 3:56pm
| Update on the 210 engine swap.Finally got the 3500 out this morning and been taking things off that will need swapped over to the other engine but all in all things are going so far. |
Posted By: Kevin210
Date Posted: 07 Nov 2018 at 7:11pm
|
Just a little update.Have been cleaning the 3700 up some trying to get ready to paint(BLACK) and waiting on some gaskets,Have removed the rear plate from the 3500 and have got the dust cover and flywheel off the 3700. Also have the exhaust manifold off the 3700,I found a crack in it where the pyro screws in.Haven't done much the last few days as I don't any heat in the pole barn and I don't care for the cold when it comes to turning wrenches. |
Posted By: SteveM C/IL
Date Posted: 08 Nov 2018 at 9:23am
| there are 2 kinds of those manifolds.Ones that are cracked and ones that are going to crack. |