450B project

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1983m35a2
MC crawler
MC crawler
Posts: 9
Joined: Sun Mar 13, 2016 9:50 pm
Location: Middle Tennessee

450B project

Post by 1983m35a2 » Tue Mar 22, 2016 8:56 pm

I am new to this message board and new to JD crawlers also.
My name is Jim and I live in middle TN. I bought a 450B project
a few weeks ago. The motor has been out for about 20 years and it needs frame rails and a lot more. I already bought frame rails and rebuild kit for the engne. Today I pulled the H-L-R clutch out to check it out
and I know what I need there but, my question is about the oil manifold.
I saw where I could buy a sleeved one for about $400. I have the
equipment and ability to sleeve the one I have but, I am not sure
what type of steel would be best to make it out of. I appreciate any advice on this.
I am at the beginning of a big project.I just wanted to save this machine for some reason.
Thanks Jim

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LeonardL
350 crawler
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Post by LeonardL » Fri Mar 25, 2016 7:24 am

Jim,
Welcome to the madness! :D I don't really have an answer for what you are doing. It is one of the many things I never came across while working on these older 350s and 450s. I would think that any good mild steel would work. I see no reason why it would need to be any better than that. Some of these machinists on here may have a better answer than that. I hope they let you know if you do need something better.

Buying a project machine can be costly but a lot of fun in the end. I hope you have good luck with it and keep us posted.
40 plus years working on JD 350s, 400Gs, 450s and other equipment both Ag and Construction.

1983m35a2
MC crawler
MC crawler
Posts: 9
Joined: Sun Mar 13, 2016 9:50 pm
Location: Middle Tennessee

Post by 1983m35a2 » Sun Apr 17, 2016 8:32 pm

I finished rebuilding the reverser, sleeved the clutch oil manifold and replaced
All o-rings and seals in the hydraulic system.
I wanted to test it before I put the covers on so
I made an adapter to spin the input shaft with a air drill.
This is where my questions come in. When I spin the input shaft
With the drill in the two forward speeds the clutch will lock up and turn the
tracks. In reverse the reverse clutch will slip but, I can see some oil coming out between the clutch disks. Now the drill is not spinning the shaft
Very fast. Do you think this is because I can't spin the shaft
Fast enough or do you think I have an issue with reverse?
Also there is 5 detents on the valve two of them seem to be
Neutral is this normal?
Thanks Jim

1983m35a2
MC crawler
MC crawler
Posts: 9
Joined: Sun Mar 13, 2016 9:50 pm
Location: Middle Tennessee

Post by 1983m35a2 » Sat Mar 04, 2017 9:28 pm

Well been working on this thing off and on for about a year now.
Today I installed the new frame rails and with all frame bolts tight
the bell housing bolt holes are about 3/8" low.

1983m35a2
MC crawler
MC crawler
Posts: 9
Joined: Sun Mar 13, 2016 9:50 pm
Location: Middle Tennessee

Post by 1983m35a2 » Sat Mar 04, 2017 9:29 pm

If I loosen the top two
frame rail to steering clutch housing on both sides until there is a 1/16
gap at the top I can get the holes lined up by jacking up the bell housing.
Any idea what could be causing this?

Jim S.
420 crawler
420 crawler
Posts: 28
Joined: Thu Jan 01, 2009 8:41 pm

Post by Jim S. » Tue Mar 07, 2017 7:47 am

Hi Jim,
Regarding lining up your frame rails to bell housing. I have just been through this and have some ideas but they will be hard to describe in a post. Feel welcome to give me a call and I will explain better over the phone.

PM sent with phone number.

Jim S

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