JD 450C

Don't know if you got seat cushions or arm rests yet but try Finney Equipment. I got arm rests for my Cat from them a lot less than Cat wanted.

JD John Deere 350C 450C Crawler Loader Dozer Seat Cushion 4 piece set 350 450 | Finney Equipment and Parts (finneyparts.us)

Welder Dave said:

Don't know if you got seat cushions or arm rests yet but try Finney Equipment. I got arm rests for my Cat from them a lot less than Cat wanted.

JD John Deere 350C 450C Crawler Loader Dozer Seat Cushion 4 piece set 350 450 | Finney Equipment and Parts (finneyparts.us)

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Thank you for the advice sir. I have a full set coming already, and I think I bought them from there! LOL

There is a small inspection port on the side of the injection pump. If you take it off and observe what look like mouse turds, the pump needs to be serviced. The stock fiber ring inside the the pump has a habit of coming apart, the updated part is of a different material. Don't try this one your self, send it out for a rebuild

To the pumpguysc on here.

Looked it over and see nothing. My plan is to no touch the Inj. Pump.

You probably won't see anything wrong on the outside. Might have to have a mechanic come out or a friend who's more experienced to take a look.

I had never drained the steering compartments due to my thinking regarding the common sump conversion (trans plug is all I thought I needed to drain), but from advice I received over at JDCrawlers, I was able to get to it this weekend and holy hell! Literally 2/3 gallons of water came out of each steering housing Plus another 2 gallons of milky horrible hydraulic fluid. Please see the photos below. What I removed are the plugs circled in red. What are the plugs circled in blue for? I didn't remove these? Do I need to?



I was also able to get some work more put in on the old girl over the weekend. Final drives flushed and re-filled. I got the turbo mounted, etc. I bought a new exhaust doughnut, the one that fits in between the turbo exhaust housing and the "elbow fitting R52818". The thing is when I mount the "elbow fitting R52818" onto the exhaust manifold using the three holes in the base, it doesn't seem to mount properly. I am reusing my old "elbow fitting R52818", and the doughnut is really loose between the turbo exhaust housing and the "elbow fitting R52818". Is this normal? Do I need to buy a new "elbow fitting R52818"?



Finally, here is my alternator and the wiring that came on the machine when I got it. Based off of these photos (I cannot find any part # on the alternator) what replacement do I need? Should I buy? Any information or guidance would be greatly appreciated.




Thank you all. More questions to follow for sure!

You’re covering a lot of ground!
I have a 450B with dry steering clutches/brakes...wish mine were wet.

I can tell you that, on mine, the doughnut floats between the turbo and elbow.

Orest Anhel said:

I replaced all the hydraulic drive pieces ou have in the photo. The piece that bolts on to the crank pulley was stripped, the splined shaft had big wear steps in it as did internal splines on the coupler. Got all of the pieces for around $200 on eBay.

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Dude!!! I think I made a mistake...when I put everything back together in terms of this pump drive shaft assembly, per JDParts there is supposed to be a roll pin installed? I swear when I removed it I didn't need to remove any roll pin, and I def. didn't put one back in during the re-installation? All I did was remove the 2 c-clips? In my dozer I have the newer shaft assembly, using the "3B" pump driveshaft.

Labparamour said:

You’re covering a lot of ground!
I have a 450B with dry steering clutches/brakes...wish mine were wet.

I can tell you that, on mine, the doughnut floats between the turbo and elbow.

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Thank you sir. I will mock up the elbow fitting and the doughnut this weekend and take photos of what mine looks. Floating is a good way to put it. Mine just seems far too loose.

Hey all, here is a little update from over the weekend. Didn't get as much done as I hoped to becasue the weather here is WA state is going insane! It was close to 110 yesterday


For the record, the blue and red plugs that I showed are for the steering clutch compartments and you should def. drain all of them. I removed the blue plugs over the weekend and had a gallon of water come out of each. I kept flushing both sides through the trans dipstick filler neck until the fluid ran clear. I plan to re-drain everything once I get the old girl up and running and put her to work a little bit.

Check out my exhaust doughnut. Again it seems pretty loose to me



New seat assembly and armrests installed.


Newly rebuilt tilt cylinder installed and all new hydraulic hoses installed as well throughout the entire machine. Plus lots and lots of fine cleaning.


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So I was able to get the machine to fire and run on Sunday. It was quite the job to get the fuel system bled, but I was able to get it done. Here is what I am dealing with now that I let the machine fire and run for maybe 20 mins or so.....I have an engine oil leak at the oil filter housing. When looking at JD parts it doesn't show any type of gasket between the oil filer housing assembly and the engine block? Does anyone know if there is a gasket in there? And if so, what is the part # for it? IF there isn't supposed to be a gasket, is an RTV product what I should use to seal this off?


Thanks everyone for all the help!

Update. Check out the link below! Video is from last weekend. I have installed the new amp gauge and hooked the new tach up as well. Both function as they should

I have also installed the hard nose back on the machine, as well as the "fenders" and floorboards. Just need to clean up the hood and re-install the ROPS.

Anyone wanna buy the machine???!!! Up for sale!

Just wanted to say thank you all for all the help and guidance. I really appreciate it. Truly.

Check out the video below. Goodbye old girl.

https://www.youtube.com/watch?v=LgF6tMnKzqU&t=6s

It would look better with the proper length bolts on the manifold.

Welder Dave said:

It would look better with the proper length bolts on the manifold.

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Yea, I do agree. Good thing it has a hood