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  1. T

    How high is the return water temperature for a 1HDT?

    That's actually a good easy idea.
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    How high is the return water temperature for a 1HDT?

    I just bled the input on the manifold and checked the temperature of the manifold with an IR thermometer (while the engine was still pretty cool) and my thermometer read 35 when the gauge was 80. It is not definitive but it seems like something must be wrong with my gauge. It is the only other...
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    How high is the return water temperature for a 1HDT?

    Sounds like I have an issue there (which can only be vapor) I have to do a little digging in to see what could be going on. But at the same time, If there is enough pressure then my gauge could be right at the point of boiling which is still not good. I looked up boiling points and pressure...
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    How high is the return water temperature for a 1HDT?

    I had a faulty sending unit to my dash causing my temperature gauge to spike and making me throw my clutch and swerve off the highway in a panic. I replaced the sending unit and decided to add a Acutemp gauge to monitor the actual water temperature. I found a nice OEM dual port that connects...
  5. IMG_6150.jpg

    IMG_6150.jpg

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    1HDT Injector Pump Solenoid Leak?

    That's exactly why I ask. I appreciate that advice. What a great link too. That will be really useful.
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    1HDT Injector Pump Solenoid Leak?

    I just found a Denso solenoid for a really good price so I am going to follow your advice but replace it too to take that out of the equation. I did not realize until I took the photo above that the bolt above (The dash pot?) could also be the culprit. In the limited information I have found...
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    1HDT Injector Pump Solenoid Leak?

    Can anyone tell me if this is in fact my cutoff solenoid that is leaking on the back of my injector pump? Back being on the firewall side of the pump. I found the part number 2275117140. Price for this thing is not fun to see.
  9. IMG_5509.jpg

    IMG_5509.jpg

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    1HDT Aftermarket Thermometer Port Location

    Thought that was the pump housing at first. True the temp will not be as accurate but at least it will give me a difference in temperature once I know what normal is there. That is the key anyway. The part on my truck this would replace doesn’t even have a single output. At least it would be...
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    1HDT Aftermarket Thermometer Port Location

    Right. That's what I was thinking of doing but I would rather put it in an unused port if one exists. Which I think there are a few but I am just not sure if they will work. I would rather keep the factory sensor in place, but I know that would be the best place for it. Does anyone have...
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    Temperature gauge specifications

    And there is a little information on it on MUD but I try to stay away from it. The infighting drives me crazy. And there is still limited information on the 1HDT. It is the main reason I joined this forum.
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    Temperature gauge specifications

    I am aware of the issue with the OEM gauge. That is why I want my own gauge installed. My gauge pegged and I have learned all about it. My issue is most likely the sending unit. I have one on order now, but until then, I wanted to install a more accurate gauge as well just for peace of mind...
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    1HDT Aftermarket Thermometer Port Location

    Long story short, I am having some cooling issues I am trying to diagnose, but regardless, I am now paranoid and I would like to install an aftermarket temperature sensor. I really need my truck as a camper for the next three nights and I am in a rush to install it right away. Being in the...
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    Temperature gauge specifications

    I am having a heating issue and wanted to see if anyone could tell me the temperature ranges of the HDJ80. I know the gas FZJ80 has a gauge that spikes at 225F Just over 100C. Is that gauge the same one used on the HDJ80?
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    Clutch Slip Travel Risk?

    Very true. We keep these old trucks on the road by mostly modifying the bad parts out. I know my lifted, three battery, solid roof rack with awning, solar rear boxed touch screen stereo'd truck would be on the cover of Car and Driver if built in the day even though I am not claiming to have...
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    Clutch Slip Travel Risk?

    My knowledge of Land Rovers is based on slipped sleeves on the Buick (gas) engine. I work with a guy who does nothing but rebuilds them for what he considers suckers for continuing to fix them. Other than that I know nothing about them. On the other hand I would do anything for one of those...
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    Clutch Slip Travel Risk?

    Well that's one way to get a Defender around. Only other way I know is on a tow truck
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    Cold Starts What's Normal?

    Great idea. Using the pump was how I was able to find the housing leak.
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    Cold Starts What's Normal?

    Definitely going to try the manual fuel pump tomorrow morning. Great idea. I would assume that will give me an idea if there is air in there too. Not aware of a glow start in the 80's. First diesel I have ever owned that did not need a glow start. In cases like this I wish it had one. But...
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    Cold Starts What's Normal?

    Thanks. Forgot I hadn't added the signature line. I was under the impression that the glow plugs would not come on when the key was in ACC. I will give that a shot. But if it is supposed to crank the same way even when really cold, then I have a bad feeling I will be searching for a new air...
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    Cold Starts What's Normal?

    Last few mornings it has been in the 20'sF and a few days ago if I did not have my twin Group 31 batteries (Not sure what that is equal to battery size in the EU) I don't think my diesel would have finally started. Most of the time it starts up at half a rev so I wanted to know what is to be...
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    Clutch Slip Travel Risk?

    All right all right. I get it. And for the record I never discounted any advice. It was either take my truck, cancel the trip, or take a Mini Cooper into the Appalachian mountains for 4 days during heavy snow. For all those waiting to find out if I am stuck on a mountain top, I am back and...
  24. IMG_4118 (1).jpg

    IMG_4118 (1).jpg

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    Clutch Slip Travel Risk?

    Half way there Higgy. You got that right!
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    Clutch Slip Travel Risk?

    Mine is pretty much in the same condition. I pull a lot. It is always loaded and has 370k km. I am sure it is the original clutch. No doubt it is at the end of its rope. I am heading out now for the trip. We’ll see what happens. I know I will be ok on the side of the road if it happens, I am...
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    Clutch Slip Travel Risk?

    Great advice. I did a couple "lighter" tests and the truck is handling the load. Shayne brought up a good question. Is there an amount of slip that is expected? Could a glazed clutch slip regardless or is it simply supposed to catch no matter what if the pedal is not depressed? I am going...
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    Clutch Slip Travel Risk?

    I am leaving on a 2000 mile trip tomorrow and my clutch just slipped on me while on a really muddy steep short hill. I would appreciate any peace of mind about my clutch failing. I have never lost a clutch before but since I am about to leave for the mountains in sub zero temps it would be...
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    Steering pump differences/leak

    Exactly what I was hoping to hear. Thanks for that. Didn’t know about the valve. That sounds like a potential issue. I know what that air feels like in the steering system and luckily that isn’t happening right now although it wouldn’t surprise me if there is air in there. Won’t hurt to try a...
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    Steering pump differences/leak

    I have noticed that the steering in my '92 HDJ80 is different than it was in my 1995 gas. The '95 was a smoother, nicer steering than my '92 and it even had bigger tires. The pump in my '92 is leaking so I wanted to know if that is a characteristic of the older model (The two are different and...
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    Battery Ground Issue

    Yes this is interesting. I didn’t think that part of the circuit would make the battery terminals 24V. It is obvious now but didn’t occur to me. I assumed that 24 volt connection would be after the battery. The only thing directly connected to that battery are my fog lights. I suppose they have...
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    Battery Ground Issue

    I did look that up and I did not trust myself to look at it properly. I can see that in series the battery is not grounded, but since it did ground out and start, I thought I might not have interpreted it well. I suppose the truck started on 12V possibly. But according to that at least it is...
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    Battery Ground Issue

    First post on this new (to me) forum. I mentioned in my intro that I am in the US and I am trying to get help from a forum that would be more used to the diesel 80's than the forums in the US. I am trying to see if I have a connection issue in my B side battery (Driver's side LHD battery). I...
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    Hi from the USA

    This is Scott in the USA. I belong to quite a few forums and go by toadshade which is a long story but not trying to hide anything. I have a HDJ80 manual that I imported from the Canary Islands in Spain and I have been modifying it since I got it here 2 years ago. Since I have a diesel I am...
  35. 6CAFE7A0-C34A-4659-848C-42E98E51D9C5.jpeg

    6CAFE7A0-C34A-4659-848C-42E98E51D9C5.jpeg

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