Search found 283 matches

by DrLoch
Wed Jan 03, 2018 6:58 am
Forum: Late model JD crawler technical support
Topic: 450C Loader Starter
Replies: 6
Views: 287

Re: 450C Loader Starter

Not a problem, too cold outside to be doing any knuckle busting right now.
by DrLoch
Mon Jan 01, 2018 10:41 am
Forum: Late model JD crawler technical support
Topic: 450C Loader Starter
Replies: 6
Views: 287

Re: 450C Loader Starter

B Town, Happy new year to you also.

Thanks for the advise. Do you by chance have a PN for the NAPA starter?
by DrLoch
Mon Jan 01, 2018 8:23 am
Forum: Late model JD crawler technical support
Topic: 450C Loader Starter
Replies: 6
Views: 287

450C Loader Starter

Of course now that it's cold my starter, more specifically the drive, is starting to act up. It will spin the motor over a couple revolutions then kick-out or de-clutch and spin. Since I got the loader the starter never sounded what I would call strong. Some one at some point had it rebuilt since it...
by DrLoch
Sun Dec 31, 2017 7:20 am
Forum: Late model JD crawler technical support
Topic: What is the Cut-Off Temperature for Bulldozers?
Replies: 8
Views: 303

Re: What is the Cut-Off Temperature for Bulldozers?

Hydraulic Oil and Diesel is not a good idea. There are a number of companies that make hydraulic fluid that has the low viscosity index you are looking for at those temperatures. It is generally a Military spec fluid, Castrol is one company that we use that offers a fluid that flows at low temperatu...
by DrLoch
Mon Dec 18, 2017 3:55 pm
Forum: Late model JD crawler technical support
Topic: 450C injection pump issues
Replies: 15
Views: 592

Re: 450C injection pump issues

boaterri wrote:
Wed Dec 13, 2017 6:34 pm

Buy the "Umbrella seal tool" and give them a smear with diesel when you replace them and thread the shaft back into the pump to reinstall.


Rick
Very wise suggestion.
by DrLoch
Wed Dec 13, 2017 7:23 am
Forum: Late model JD crawler technical support
Topic: 450C injection pump issues
Replies: 15
Views: 592

Re: 450C injection pump issues

Search mouse turds. Common problem, pellethane ring on governor coming apart probably blocking check valve on top.
by DrLoch
Sun Dec 10, 2017 7:48 am
Forum: Late model JD crawler technical support
Topic: 450C hydraulic pump removal
Replies: 22
Views: 771

Re: 450C hydraulic pump removal

Is there a way to test the volume/pressure? Short answer, yes. But, most people don't have the correct tools to do it. Would require a flow meter, relief valve so you don't blow it up or shear the shaft, a needle valve to restrict the flow of fluid and a pressure gauge. Would be cheaper to just get...
by DrLoch
Sat Dec 09, 2017 6:57 am
Forum: Late model JD crawler technical support
Topic: 450C hydraulic pump removal
Replies: 22
Views: 771

Re: 450C hydraulic pump removal

If your's is like mine it has a gear pump, an aluminum bodied gear pump at that. They really aren't rebuild able, other than seals if it were leaking externally. Was it making noise when warm and worked hard? As suggested, it's much easier to R & R the pump with the nose off.
by DrLoch
Sun Dec 03, 2017 7:36 am
Forum: Late model JD crawler technical support
Topic: 450C final update and valuation
Replies: 9
Views: 663

Re: 450C final update and valuation

Good story.... we appear to have a number of things in common; I HATE Lawyers as well I also was in the Navy, Flying Navy 72 - 76 Vietnam Service. And I can not leave anything alone, even stuff I borrow from people which I've had to do on occasion. Most love to lend me stuff, the reason is that I wi...
by DrLoch
Sat Oct 14, 2017 7:01 am
Forum: Late model JD crawler technical support
Topic: 450b fan
Replies: 15
Views: 869

Re: 450b fan

I trashed my fan when the water pump went out, it was a pusher. I bought an after market fan from Summit racing. It has worked fine for me.
by DrLoch
Thu Sep 07, 2017 7:07 am
Forum: Late model JD crawler technical support
Topic: 450-C engine oil
Replies: 6
Views: 592

Re: 450-C engine oil

Looking to acquire a 1974 450c crawler loader. The operator manual says to use 30 weight oil and multi-viscosity oil is not recommended. Is it OK to use 15w-40 diesel oil (Rotella, DELO, etc.) and do any forum members use it? I use the Rotella 15W40 in the JD and my old Ferguson tractor with a dies...
by DrLoch
Thu Sep 07, 2017 7:04 am
Forum: Late model JD crawler technical support
Topic: Broken hyd hose
Replies: 2
Views: 329

Re: Broken hyd hose

I have a 450C and I replaced all those hoses, all I can say is they are a joy to get in and out. The easiest method I found was to pull the rear pin for the lift/boom cylinder and get the rear of the lift/boom cylinder to move forward so you can get at the fittings. I used a combination of crows fee...
by DrLoch
Wed Jul 19, 2017 6:13 am
Forum: Late model JD crawler technical support
Topic: 450C will not stay running
Replies: 22
Views: 1772

Re: 450C will not stay running

Did they happen to mention what they found?
by DrLoch
Mon Jul 10, 2017 6:21 am
Forum: Late model JD crawler technical support
Topic: 450C will not stay running
Replies: 22
Views: 1772

Re: 450C will not stay running

FYI, Tool for compressing the seals on the shaft when installing the pump is a stanadyne 13369. Look at the pilot tube (Stanadyne 16320) inside the body if it's badly grooved you'll want to replace it. You'll know if it's badly grooved when you remove the pump, it'll act like its stuck on the shaft ...
by DrLoch
Sun Jul 09, 2017 7:01 am
Forum: Late model JD crawler technical support
Topic: 450C will not stay running
Replies: 22
Views: 1772

Re: 450C will not stay running

If it is the governor ring, you might consider replacing with the updates dampner ring, Stanadyne # 29111. Got mine from usdiesel.