Welcome back to the John Deere 4020 Engine Overhaul series! In this third installment, we’re diving deep into the rebuild process as we make major progress on the engine. Watch as I continue forward on engine reassembly to get this classic 4020 running like new!
In this video, I’ll be:
-Installing the cylinder head and rockers
-Performing a valve set
-Splitting the tractor to replace the rear main seal
-Cleaning up the clutch housing and inspecting disconnect clutch
-Bolting the tractor back together
-Removing a leaking fuel tank
-Performing the first engine start-up after the overhaul!
-Dyno Run
This is an action-packed episode where you’ll see some serious mechanical work and get a glimpse of how a full engine rebuild comes together. Whether you're a John Deere enthusiast or into tractor restoration, you won’t want to miss these steps!
Don’t forget to like, comment, and subscribe for more updates as we continue bringing this John Deere 4020 back to life. If you missed the earlier parts of the engine overhaul, check out the previous videos in the series to get caught up.
Timestamps:
00:00 - Introduction to Part 3
00:28 - Unpacking & Inspecting the rebuilt Head
02:15 - Prepping for Head Installation
04:05 - Installing Cylinder Head
05:43 - Torquing Cylinder Head
12:16 -Installing Rocker Shaft
16:35 - Setting the Valves
19:32 - More Reassembly
20:50 - Splitting the Tractor
22:28 - Engine Disconnect Clutch (Powershift)
23:10 - Rear Main Seal
24:32 - Rear Main Seal
24:40 - Reassembling the Tractor
26:06 - Engine Oil Pump
33:35 - Fuel Tank Removal & Fixing Leak
34:21 - Bleeding Fuel System
36:30 - First Engine Start-Up!
40:35 - Correct Coolant Heater Installation
41:33 - Fuel Tank is Back
43:54 - Coolant Flush
45:00 - New Thermostats
45:23 - Off to the Dyno
45:52 - Back from the Dyno
Watch the full series:
Part 1: https://www.youtube.com/watch?v=WWhYEk4L69M&t=5s]
Part 2: https://www.youtube.com/watch?v=s-SVq5pGp20&t=17s
Subscribe for more tractor restoration and repair content:
@rcdieselchannel
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Video by RCDiesel