New project 450c

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Solo33
40C crawler
40C crawler
Posts: 12
Joined: Thu May 05, 2022 7:19 pm
Location: SE Minnesota

New project 450c

Post by Solo33 » Sat May 07, 2022 9:55 am

Hello
I have only been introduced to this forum recently after buying a 1978 450c dozer (#313940T). This forum is full of information and very grateful it exists. The dozer I acquired needs some TLC and not sure where to start. It is my first dozer and am new to this type of machine (under carriages). I do own a mid 70's jd 440b as well.

I will post some pictures to help give a better idea of where the condition of the machine stands. I feel it needs motor work, under carriage work, and possible some bearing work underneath the foot platform.

1. The motor (#492144T/4219Ct02) runs and seems like it has plenty of power, though I haven't worked it to hard yet. There is pressure coming out of the dip stick and seems to be coolant/water coming out too. There is a film of oil on top of coolant in radiator. Doesn't seem to use any coolant has the level doesn't change. There is little blowby coming out vent on top of valve cover to so I don't believe it is clogged. I need to replace the temp gauge as that doesn't work which is why I haven't worked it to hard yet, so I don't know if it gets hot while running. It does smoke while running. I did change the oil when i first received it. It didn't seem to have any moisture in it.

2. Sounds like there is a chatter or rattle underneath my feet, especially in reverse it howls pretty good. I've read it is a common noise? The noise seems to be really noticeable at idle when going forward and reverse, might be cause the motor isn't revved up. If I pull the motor which I might just to see what it looks like in the bellhousing, is there a bearing in there? I changed the steering clutches, final drives, and transmission fluid. How do I tell if the sump conversion has been done as I rechecked the steering clutch and it was overfull on both sides?

3. The undercarriage needs some work as both sprockets are about at points on the teeth, one front idler I can move if I push on it. They both are about 3" from the end of rail. The grouser pads have about an inch left on them. The pins could be rotated as one side seems fine yet. I need a new grease zerk on one adjuster as it wont keep grease in.

Other then above, it fires up after a few rotations, drives, and steers great. The brakes are good. I could just use a little expertise in which should be tackled first before I put it to work.

Thanks
Solo
Last edited by Solo33 on Sun May 08, 2022 5:44 am, edited 1 time in total.
1978 450c dozer
1970's 440b skidder

Solo33
40C crawler
40C crawler
Posts: 12
Joined: Thu May 05, 2022 7:19 pm
Location: SE Minnesota

Re: New project

Post by Solo33 » Sat May 07, 2022 10:52 am

Still trying to figure out how to post pictures.
1978 450c dozer
1970's 440b skidder

dtoots1
350 crawler
350 crawler
Posts: 1162
Joined: Fri Nov 30, 2012 8:54 am
Location: akron, ohio

Re: New project 450c

Post by dtoots1 » Mon May 09, 2022 8:41 am

RE. Posting Pictures....When you are signed in to the crawler site...click on the board Index....the last forum is Q&A forum, in that you will find "Pic Server" Instructions....as noted you must send email to...postmaster@jdcrawlers ... that is Lavoy owner of the site, giving him your chosen sign-in for the pic server along with your password for that site, once he has acknowledged you will be able to access the "pic server" and you can print out the instructions and follow them closely....i find it easier to use laptop or pc when doing so.......easiest method of getting pics is using cell phone and mailing them to your email and pic up on the laptop or pc to upload to the pic server....cannot really load directly from cell phones-- though can be if you are really literate in computers...

someone will be along to answer your questions with more hands on knowledge

welcome to the world of dozers

Solo33
40C crawler
40C crawler
Posts: 12
Joined: Thu May 05, 2022 7:19 pm
Location: SE Minnesota

Re: New project 450c

Post by Solo33 » Thu May 12, 2022 5:05 am

ImageImageImageImage

A few practice shots
1978 450c dozer
1970's 440b skidder

dtoots1
350 crawler
350 crawler
Posts: 1162
Joined: Fri Nov 30, 2012 8:54 am
Location: akron, ohio

Re: New project 450c

Post by dtoots1 » Mon May 16, 2022 10:04 am

Regards your practice shots...copy and paste the entire code...and post that in a new reply....after you have pasted it to the post...edit the http code out and leave the rest on the post...it will help us to help you...when we can view to see what errors in the code..
thanks dtoots1

//jdcrawlers.lcent.com:8000/johndeere/albums/userpics/10004/normal_IMG_20170110_141405_450~0.jpg

.http:..
//jdcrawlers.lcent.com:8000/johnde ... _450~0.jpg .

oncet gain try...http://jdcrawlers.lcent.com:8000/johnde ... 0_0441.JPG ..correct
...wrong way...http:
//jdcrawlers.lcent.com:8000/johndeere/albums/userpics/10004/normal_100_0441.jpg...see jpg ...small letters

all have to match exactly as shown when uploaded to server

User avatar
Dkc923
40C crawler
40C crawler
Posts: 12
Joined: Thu Jun 23, 2022 4:01 pm
Location: Bogalusa, Louisiana

Re: New project 450c

Post by Dkc923 » Mon Jun 27, 2022 6:32 pm

Good looking machine! Sure sounds like you may have a head gasket issue. If that's the case and you don't feel like pulling it down right now or don't have time Ive heard great things on Blue Devil head gasket sealer. Have been told it works miracles. Just gotta make sure to follow instructions closely on back of bottle. Be sure to let us know how it turns out.
1974 JD 450C. Old iron is my passion!
12 IH tractors and counting

Solo33
40C crawler
40C crawler
Posts: 12
Joined: Thu May 05, 2022 7:19 pm
Location: SE Minnesota

Re: New project 450c

Post by Solo33 » Mon Oct 31, 2022 5:35 pm

Well I'm rebuilding the motor. It has coolant in the oil pretty bad. While it is out I will replace the throw out bearing. Should I go ahead and replace clutch and pressure plate? Hopefully it takes care of the howl in reverse. Anything else I should replace on engine While it's out? Thanks
1978 450c dozer
1970's 440b skidder

User avatar
DrLoch
1010 crawler
1010 crawler
Posts: 382
Joined: Thu Jul 04, 2013 6:39 am
Location: Mebane NC

Re: New project 450c

Post by DrLoch » Tue Nov 01, 2022 7:47 am

Clutch and pressure plate aren't gonna fix the howl in reverse, mine does it as well it's in the HLR.
I not quite sure I understood, did you replace the fluid in the trans and drives?

Get manuals... they will help. Sumps are common on a C version, manual will help explain.
450C Track Loader
291457T

Solo33
40C crawler
40C crawler
Posts: 12
Joined: Thu May 05, 2022 7:19 pm
Location: SE Minnesota

Re: New project 450c

Post by Solo33 » Sun Nov 06, 2022 5:10 pm

Yes I replaced all fluids and filters when I bought it. I have the manuals and I'll be using them for the rebuild. I'll look into the HLR while I have it all apart.
What should a guy do with the turbo during a rebuild? Buy a kit or new turbo?
Also, it is a little wet looking in the clutch housing. Where would be the first place to check?
1978 450c dozer
1970's 440b skidder

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