New member help needed please

Bjjfitr · #1 01-04-2021, 08:04 PM

Hi new member from Flagstaff az, I've got a d24t i got from a friend. Motor was rebuilt but never installed and had water get into it. I've re honed the cylinder, replaced the cam and adjusted all valves. I'm installing into a 00 land rover discovery 2. I've taken three different transmissions and gotten that to mate up and I'm ready to stab the motor and weld in mounts, what i need help with is i have boxes of parts and no diagrams for wiring or coolant hose routing. Does anytime have any pictures or diagrams of coolant hoses? I've got about 3/4 of them but missing the rest. Also a wiring diagram would help. Main temp sensor and oil pressure are easy enough but there are other sensors i would like help with. Thank you for the help
-Chuck

RedArrow · #2 01-04-2021, 11:10 PM

Welcome to the Forum! You`ll read it here a million times... but here it is: PLS be careful with the TB.
You`ll need special, precision tools with some diesel skills to do it right (or good help from someone who knows/owns them.

Interesting configuration you are building there! Post pictures for us here once you get closer fitting it in.
I have the factory d24t book somewhere so I could picture the wiring diagram for you, if very necessary.

You`ll be surprised to realize how simple it is: these d24 engines do not need a lot to run, you`ll be able to build your setup very easily. The Inj pump needs 12volts to the shutoff valve, starter needs wires and the glowplugs need their wire, alternator, beefy battery cables and that`s about it. :`)

I recently refurbished one of these and documented many of the major steps in a thread `Rear axle/differential setup`. It may help you to see all engine details well enough that you could build your own cooling system.
( https://www.d24t.com/showthread.php?t=2044 )
Posts #54 to #59 show quite a lot of the cooling system and I did spend a lot of time listing all hoses in there and the part numbers.

In post #77 you can see walk-around videos of the engine running on a stand and could see/check out the routing of many coolant hoses. Those links to my d24 YT-videos may help too, or I can make a NEW, full close-up video in the garage tomorrow (and go hose by hose, to show you). LMK what exactly you`d like to know.

This video also helps some:
https://www.youtube.com/watch?v=_x0qJfFrZUA

I also have a start-up video uploaded, in 3 parts, it shows the cooling system; look for it here:
https://www.youtube.com/watch?v=EHbjoEiOEBo
https://www.youtube.com/watch?v=d8MP3d6dhDk
https://www.youtube.com/watch?v=1W5aAjXFmfY

This one is a walk-around video too. https://www.youtube.com/watch?v=_x0qJfFrZUA

What is your engine exactly, an earlier d24 with turbo added or a factory d24t? What year, and are you keeping the oil cooler (if any)? (there are some slight differences in d24/d24t coolant hose setups)

I also have used and new coolant hoses for this engine and could take pictures of them for you, measure length, angles, etc.

Bjjfitr · #3 01-05-2021, 05:05 AM

Thank you! I'll go through all the videos before i ask for more. As far as i know it came out of an 85 but i have no idea i got the engine and boxes of parts. It's a factory turbo with the oil cooler and i plan on keeping the cooler. As far as the electrical a diagram isn't totally needed i was just looking to identify the sensors/sending units. For example there appear to be two coolant temp sensors one side of the head the other in the very back of the head, one would go to a gauge but not sure of the other. Also the injector pump has the connector for fuel shut-off but there is another one at the base of the pump not sure about that one. I can wire it up just part identification is helpful, i don't have a car here to look at to trace wires. I'm not totally in the dark with older euro diesels i have a working xj Cherokee with a factory 2.1 Renault turbo diesel i found and swapped in. I'm pretty happy there's help available and parts, I've been flying solo with the Jeep for a while.
Thanks again!

ngoma · #4 01-05-2021, 12:12 PM

Temp sensor at the front of the cylinder head is for the temp gauge.

Temp sensor at the rear of the cylinder head is for the glow plug relay.

Solenoid near the base of the IP is the altitude compensation timing advance. Connects to a rectangular microswitch screwed into a barometric diaphragm (shaped like a slightly undersize tuna can-- look for it in your parts boxes)(On the Volvo it was mounted on a bracket on the inner fender next to the GP relay). Important that that solenoid gets +12VDC under normal run conditions, otherwise the engine will run a chronic overly advanced timing condition. IOW, that solenoid should be seeing +12VDC at altitudes <4,000 ft. My opinion: That subsystem was designed backwards. A better design would have been a mechanism requiring no voltage at normal conditions, energizing voltage for high altitude.

RedArrow · #5 01-05-2021, 12:42 PM

https://youtu.be/tjvCRIAu7hU

Here's a super boring video I made for you to see the routing of hoses for the cooling system

Bjjfitr · #6 01-05-2021, 05:25 PM

Ngoma i do not have the timing advance box in my parts is there a way to bypass it? Can i just put 12v to it all the time? Is it necessary? My Renault jeep diesel has the bosch ve pump as well but no solenoid. Redarrow thank you for the video coolant system is totally cleared up! There's one more plug behind the turbo on the block in place of a freeze plug what does that do? Thanks to all for the help