Search found 240 matches

by oldmetalmender
Fri Feb 19, 2016 12:26 am
Forum: Off-topic discussions
Topic: Proper forum suggestion for my JD400 backhoe
Replies: 18
Views: 7248

Odd, it appears after noticing my engine was running hot that my thermostat is stuck. This is right after my work I completed. Wondering if I had an air bubble below the thermostat from a complete coolant exchange. I shut it off and sure enough, the cast elbow is really hot all the way to the thermo...
by oldmetalmender
Sun Feb 14, 2016 4:38 pm
Forum: Off-topic discussions
Topic: Proper forum suggestion for my JD400 backhoe
Replies: 18
Views: 7248

Well I got it. But not without making me work for it. That plug has been in the cast elbow for 47 years and did not want to come out. I used a 18 inch 1/2 inch drive breaker bar with a reducer to 3/8 drive hooked to a socket driven 3/8 allen. Right when I felt it start to turn it broke the allen. Lu...
by oldmetalmender
Sun Feb 14, 2016 1:07 pm
Forum: Off-topic discussions
Topic: Proper forum suggestion for my JD400 backhoe
Replies: 18
Views: 7248

Tank heater will work a lot better if you plumb the top hose into a tee at the temp sending unit. Lavoy Up at the elbow that goes into the cylinder head is a large allen socket pipe plug. I wanted to hook up there. The ports would be almost the length of the engine apart. But I just could not get i...
by oldmetalmender
Sat Feb 13, 2016 9:45 pm
Forum: Off-topic discussions
Topic: Proper forum suggestion for my JD400 backhoe
Replies: 18
Views: 7248

Well shoot... Almost a productive day. I think the peened pin might have to wait for later. I have no idea how much block material is under the pinhole. Also I have been wanting to install my coolant heater to go with the oil pan heater I put on a while ago. So changing my coolant back to regular et...
by oldmetalmender
Sat Feb 13, 2016 8:35 pm
Forum: Late model JD crawler technical support
Topic: Can I change to elc oat coolant?
Replies: 28
Views: 9363

Hi metalmender, what part of the panhandle? Sorry to hear you have two machines to worry about, judging by your signature we might be a lot alike, more toys than we can keep up with. I also thought this stuff sounded great, extended life and no additives to monitor, sign me up. I should have known,...
by oldmetalmender
Sat Feb 13, 2016 7:50 pm
Forum: Late model JD crawler technical support
Topic: Can I change to elc oat coolant?
Replies: 28
Views: 9363

jtrichard wrote:YOU should also add the additive like NAPA KOOL it helps stop the cavitation pitting
I'll pick up some for both machines. I managed to get one switched back to ethylene glycol based coolant today after a good flush. Thank you!
by oldmetalmender
Fri Feb 12, 2016 12:11 am
Forum: Off-topic discussions
Topic: Proper forum suggestion for my JD400 backhoe
Replies: 18
Views: 7248

That is most likely a better repair than JB weld. I have to take some older buick 350 exhaust manifolds in to a machine shop in a couple days. I'll ask about that. I am concerned about making it bigger as I can't tell how bad the flaw is on the inside is if it is a flaw. I need to get a picture of i...
by oldmetalmender
Fri Feb 12, 2016 12:00 am
Forum: Late model JD crawler technical support
Topic: Can I change to elc oat coolant?
Replies: 28
Views: 9363

So what rigs do use extended life coolant? Semi trucks? And what kind of radiator do they have? I suspect aluminum. I remember reading in some forums after searching on this and deciding on using it. I remember seeing pictures of rusted cylinder liners and that is what I wanted to avoid. I did not k...
by oldmetalmender
Thu Feb 11, 2016 12:13 pm
Forum: Off-topic discussions
Topic: Proper forum suggestion for my JD400 backhoe
Replies: 18
Views: 7248

I would say gas vs diesel are NOT the same JD shows 5 different #s for gas and NO # and NO longer available for diesel That's what I thought. Fortunately the hole is super small and most likely able to be plugged with JB weld. I have searched some of the dismantling yards back east. I only see the ...
by oldmetalmender
Thu Feb 11, 2016 12:04 pm
Forum: Late model JD crawler technical support
Topic: Can I change to elc oat coolant?
Replies: 28
Views: 9363

This thread made me head out to the shop in my bathrobe and a pair of slippers in the snow early this morning to see what I put in my 450. :shock: Thankfully my only neighbor can't see me. I see I put zerex ELC coolant in with well water. I saw some info on pitted liners and ELC coolant last summer ...
by oldmetalmender
Sun Feb 07, 2016 10:59 pm
Forum: Off-topic discussions
Topic: Proper forum suggestion for my JD400 backhoe
Replies: 18
Views: 7248

Looks like JB weld it is. It is a very tiny casting flaw. A hole smaller than the diameter of a pencil lead. I watched the video and the follow up video. Glad to hear it worked for that guy. His crack in the block was huge. I am still wondering if it is common to have the same block for gas and dies...
by oldmetalmender
Sat Feb 06, 2016 11:15 am
Forum: Off-topic discussions
Topic: Proper forum suggestion for my JD400 backhoe
Replies: 18
Views: 7248

Sounds great Stan. I didn't want to talk apples on an orange forum. :D My JD400 has a pinhole in the diesel block. It appears to be a casting flaw. I have looked on the JD parts finder site and near as I can tell the diesel block is the same as the gas block. Sometimes the parts finder site has so m...
by oldmetalmender
Fri Feb 05, 2016 10:00 pm
Forum: Off-topic discussions
Topic: Proper forum suggestion for my JD400 backhoe
Replies: 18
Views: 7248

Proper forum suggestion for my JD400 backhoe

Along with my 450C crawler, I have a 69 JD400 backhoe. Do any of you guys have a suggestion for a good forum or a site for talking about that machine? It has wheels. :shock: No plans for tracks just yet. :lol:
by oldmetalmender
Sun Jan 31, 2016 12:53 am
Forum: Off-topic discussions
Topic: got snow
Replies: 43
Views: 16756

Ugh, fires... Last August on the12th I called in a fire at 4AM on the mountain top 6 miles away as the crow flies. For 11 hours they worked it with 5 planes and 2 heli's. Single digit humidity and 95-100 degrees out. They knocked it back to nearly nothing. Then the wind kicked up the next morning. T...
by oldmetalmender
Sun Jan 31, 2016 12:32 am
Forum: Late model JD crawler technical support
Topic: Reverser operation
Replies: 32
Views: 13306

Well I bought an 18 inch grease gun hose to hook to my gauge. I found a 36 inch hose today. Now I can recline while adjusting my HLR trans.
I'm getting spoiled here. :D

If it would just quit snowing.... :shock: