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-   -   Disco I Ownership Thread (https://landroverforums.com/forum/discovery-i-39/disco-i-ownership-thread-92643/)

CaptainClif 12-18-2018 03:20 PM

Disco I Ownership Thread
 
A few weeks ago I purchased a 1996 Discovery I SE. It has just over 156K miles on it and several issues, which I guess is normal. This thread will serve as a restoration thread as well as a general guide for what ownership for these vehicles can look like. I have a similar thread going for my M5 on another thread and people seem to like it. So here it goes!

Oil Change 15 December 18, 157,302 Miles
Reason: Unknown when last oil change was and very low oil level
Cost: $50-$75

Things You Will Need:
  • 1 1/8 Socket/Wrench
  • 7 Quarts of Oil (I used 5W-40)
  • New Drain Plug
  • New Copper Washer for Drain Plug
  • Oil Filter
  • Oil Drain Pan
  • Filter Wrench of Some Sort (Optional)

Step 1: Get Under the Truck and Prepare the EngineStep 2: Drain the OilStep 3: Fill with Oil
  • Replace the drain plug and copper washer.
  • Put 6 quarts of oil back in.
  • Check for leaks
Step 4: Replace Oil FilterThe last person to change the filter must have torqued that thing down as hard as possible. I had to use a large jaw plier and tried drilling a hole through it and using a screw driver to take it off. A combination of all of those methods eventually worked.
https://cimg4.ibsrv.net/gimg/landrov...6c5da1c40b.jpg
https://cimg7.ibsrv.net/gimg/landrov...b88fcbaf0d.jpg
  • Drain the oil from the filter into your drain pan.
  • Make sure none of the filter gasket is left behind.
  • Clean filter mating surface.
  • Fill new filter 1/2 way with new oil and coat the gasket with fresh oil.
  • Screw on new filter HAND tight.https://cimg6.ibsrv.net/gimg/landrov...20228252a6.jpg
  • I know I'll probably get crap for the filter I used but I'll use a larger one next time as well as some LiquiMolly Oil.
Step 5: Clean up and Check for Leaks
  • Clean everything up and lower the car if you jacked it up.
  • Double check that everything is tightened down.
  • Check oil level, add oil if needed.
  • Start the truck and check for leaks then turn off.
  • Wait a few, check level again and fill if needed.

WaltNYC 12-19-2018 06:41 AM

Terrific. Another Discovery revived. I use Napa/Wix 1515 and Shell Rotella for oil/filters.

Take a look at this thread for lots of useful "how to's" and common problems.
https://landroverforums.com/forum/di...02/#post186769

Grab the workshop manuals from the link in my signature.

Welcome to the party!

Toran 12-19-2018 06:47 AM

This is actually an extremely helpful visual approach at helping/learning to change the oil.
This will also be most helpful to newer owners/users in the future. :)

CaptainClif 01-11-2019 12:12 PM

I spent a lot of time over the holidays doing a little bit to the Disco here and there and finally have the time to update this post. Unfortunately the truck has mostly sat since I bought it due to a few headaches that will be detailed below, but nothing terrible.

Thermostat Change/Coolant Drain, Fill, & Bleed 30 December 18, 157,302 Miles
Reason: Engine not coming up to temp and heater not blowing hot air.
Cost: $25-$75

Things You Will Need:
  • Thermostat and Gasket ( ETC4765K )
  • Radiator Fill Plug - Recommended - ERR4686G or ERR4686B
  • Oring or Dring for Drain Plug - Recommended -
  • New Expansion Tank - Optional -
  • 3-4 Gallons of Green or Blue (BMW) Coolant
  • Distilled Water if you don't get 50/50 of the above
  • Flat head screw driver
  • 8-12 mm Socket and/or Wrench
  • Adjustable Wrench
  • Drain Pan or Bucket
  • Razor Blade or Plastic Scraper
Step 1: Prepare the TruckStep 2: Drain the Coolant
  • Use your screw driver or 8mm socket to loosen the clamp on the lower radiator hose. This is located at the bottom right of the passenger side of the radiator
  • Depending on how the close is situated, you can get access to it via the top of the car, the bottom of the wheel well, or directly below the radiator. I chose to access via the top of the vehicle
  • https://cimg8.ibsrv.net/gimg/landrov...3aa1ce70b1.jpg
  • Once it is loose enough, move it up the hose and out of the way
  • Using your screw driver again, pry around the radiator hose to break the seal, then pull the hose off of the radiator
  • Try to catch the coolant as it comes out
  • *If you don't need/want to change this much coolant, you can drain "just enough" via the water pump to make the thermostat job a little easier*
Step 3: Remove Old ThermostatStep 4: Install New Thermostat
  • Insert the new thermostat with the bleeder hole pointed at the 12 O'clock position
  • https://cimg9.ibsrv.net/gimg/landrov...a8e1633c3e.jpg
  • Put bolts through the thermostat housing holes
  • Put new gasket over the bolts, this should mostly keep it in place while you tighten the housing down
  • Torque the bolts down per the RAVE or just use common sense and tighten it down good and tight
Step 4.5: Install New Expansion Tank - Optional -
Step 5: Fill Cooling System With New Fluid and Burp/Bleed the System
  • Reattach lower radiator hose and tighten hose clamp
  • Fill the expansion tank with the proper mixture of coolant and water until it stays just above the max mark
  • Squeeze several times any large coolant hoses you see, this should help circulate coolant and get some of the air out, refill overflow tank if necessary
  • Start car and set climate control to max heat
  • Check for leaks, fix if any are present
  • You should see some action where the radiator fill plug was, it may even overflow some
  • Continue to squeeze the coolant hoses, this should cause coolant to come out of the fill plug, keep overflow tank full during this process
  • Once you feel like no more large air bubbles come out of the fill plug then reinstall your new plug and O ring
  • Turn car off or drive around
  • After the truck stays at operating temperature for a good bit of time, it should purge itself of any remaining small air bubbles
  • Do a final check when car is cold, and fill overflow tank if needed

Step 5.5: Fixing a Broken Fill Plug
  • If you are stupid like me and try to reinstall the old plastic fill plug, chances are it will break to some degree
  • Mine got threaded pretty deep but the top twisted off while tightening it. The plug seemed to be fused into the threads of the radiator
  • https://cimg6.ibsrv.net/gimg/landrov...626e98693d.jpg
  • I first tried using a left handed drill bit, but this made things worse
  • I then used a Dremel with a cone shaped stone-like material tip to cut four notches cross-ways that got as close to the radiator threads as I could get
  • Then I used a flat head screwdriver and a hammer to whack at the plastic cap, I whacked towards the center of the fill plug
  • Once the plastic was free of the threads, I was careful to not get any large chunks of plastic to fall into the radiator
  • I then used the Dremel with a metal brush attachment to clean the radiator threads
  • https://cimg0.ibsrv.net/gimg/landrov...40b81ae1a3.jpg
  • I chose to replace my old plug with a new plastic one for two reasons
    • It is cheap enough, even at the dealer that I could replace it often enough I don't have to worry about the plastic breaking down again
    • I have read several threads where people have had issues with the brass plug. I wonder if this is because of the O-ring seat in the plug. The plastic plug has a recessed area the ring sits in, not sure if the brass one has the same "seat".

Toran 01-11-2019 01:04 PM

What kind of cap is that on your new overflow tank?
It looks to be connected to something else?
Thanks

DavC 01-11-2019 01:24 PM


Originally Posted by Toran (Post 676053)
What kind of cap is that on your new overflow tank?
It looks to be connected to something else?
Thanks

Looks like the cap that has a low coolant warning circuit in it. Range Rovers have a cap like this

Toran 01-11-2019 01:27 PM

Auhh that’s interesting. So one would get an alert when fluid was low?

OverRover 01-11-2019 01:45 PM


Originally Posted by Toran (Post 676058)
Auhh thatís interesting. So one would get an alert when fluid was low?

PRC7925 is the RRC cap with the level sensor. :cheers:


https://cimg5.ibsrv.net/gimg/landrov...17efcb823f.png

Toran 01-11-2019 01:49 PM

Thank you OverRover!
Now I am even more curious as to how I would make the electrical connection?
Thanks

OverRover 01-11-2019 02:18 PM


Originally Posted by Toran (Post 676060)
Thank you OverRover!
Now I am even more curious as to how I would make the electrical connection?
Thanks

Something like this :dunno: > Coolant Level Warning Circuit on Land Rover Defender


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