Social Media
Duncan's IH8Mud Profile: https://forum.ih8mud.com/members/duncanrm.74271/
Duncan's 2H/12HT Facebook group: https://www.facebook.com/groups/2h12ht
2H Specific Reference Information
General
Factory Manuals
2H Repair Manual - 36048E (1985): https://drive.google.com/file/d/0B-KW6mdxQyjDY3dVa3dGcml4X2M/view?usp=drive_link&resourcekey=0-nxapG2mrSR2ThDaA0jOcsg
2H Repair Manual Supplement - RM133E (Aug 1988): https://drive.google.com/file/d/16dx8ncHLI85LhWTlshodk-gNO3vH4MNU/view?usp=drive_link
2H/12HT Service Training Information: https://drive.google.com/file/d/1_LaTcMxWhpUWtSQPU4SpOlUjbrYkGe9d/view?usp=drive_link
Trusted sources for parts (2H/12HT):
Technical Motors Sports Corner (Daniel Dietrich): https://technicalsportscorner.com.au/collections/2h
Terrain Tamer: https://www.terraintamer.com/
PDFs I've made of various 2H gaskets if you want to cut any out: https://drive.google.com/open?id=1G015RPkKQp9mibToBBTmi3ou702DfRSx
Early vs Late 2H/12HT
Block casting 68010: Cylinder Liners (early)
Block casting 68020 and 68030: Parent Bore (late)
Early vs Late 2H Head Gaskets (Comparison): https://drive.google.com/open?id=1N7GDSgxqU7-HOMMZECi8DilbJ8QC_OtG
Early vs Late 2H, how to identify: https://photos.app.goo.gl/g1UVCW1dFH1w5mLD9 (note a small number of 2Hs have early front timing covers, but are parent bore - checking casting number is the best way to conclusively identify a liner vs parent bore block)
Early vs Late 2H/12HT Cam Comparison - https://photos.app.goo.gl/9MJ9Mi7KvVyt4yGh8
Early vs Late 2H/12HT Timing Case Comparison: https://photos.app.goo.gl/kQqxxuHoDcs8JLz49
Comparison of early 2H and late 2H/12HT Oil Cooler Covers: https://photos.app.goo.gl/4AT8uFRUi21EX6FD7
Engine Australia Early 2H Specification Sheet: https://drive.google.com/file/d/19sV3mr4UKIU_zabtC_PDLitKsueYG1x1/view?usp=sharing
Piston Protusion Information from Engine Australia: https://photos.app.goo.gl/X6moDL5CWCow13J89
Engine Australia 2H/12HT casting information (interesting!): https://photos.app.goo.gl/2PSYbw9FHucn86kCA
ARP Head Studs for 2H/12HT from Engine Australia: https://photos.app.goo.gl/MV5jwRTXuY3P9uEx7
Fuel Sedimenter/Water Separator images: https://photos.app.goo.gl/yTBd1qwecH7oP5L77
2H Block Coolant Drain location: https://photos.app.goo.gl/qZgrdMhmzyEyMQmh8
2H/12HT Air Conditioning Compressors: https://photos.app.goo.gl/gZW322EAPcKK2bv5A
Images of a cutaway 2H Engine: https://photos.app.goo.gl/1WpF6M8MffKUnAZ99
Cutaway 2H Engine - diagrams: https://photos.app.goo.gl/zvkvhhtqL3Bsbpuw6
2H Oil Flow Pathway - Diagram: https://photos.app.goo.gl/3wMxhecVnhAJjGSSA
Vacuum Pump Oil Feed - identifying inlet and outlet: https://photos.app.goo.gl/L6LHJL8kUBydBMGr5
12HT/Late 60 Oil Filter Bypass Valve / Oil Pressure Relief Valve comparison: https://photos.app.goo.gl/FhEzG6gtKLR6Tn939
Governor Housing Drain Plug: https://photos.app.goo.gl/a2oYfUFhQnqV9FuQA
2H/12HT Fuel Filter Part Numbers: https://docs.google.com/spreadsheets/d/1NW1dZsgzar10bE5CDiCE9wDawapZakvY_BamvB2_iwc/pubhtml
Fitting an aftermarket secondary filter/sedimenter to a 2H: https://photos.app.goo.gl/z8mp6CCh2LCCz3Yr9
Mounts/Bellhousing
HJ47/HJ60 Engine/Power Steering Mounts (use of HJ60 Engine Mounts on 40 series) : https://photos.app.goo.gl/MyJD7mcHAn4dA5Nr7
HJ47/HJ60/HJ75 Airconditioning Compressor and Idler Mounts: https://photos.app.goo.gl/UDnzbHQUcUXbH2mNA
Identifying HJ47/Early 60 vs late HJ60/61 Bell Housings (later HJ60 clocks the transmission a little) https://photos.app.goo.gl/hnYqW1adf8RiinRj6
2H/12HT Bell housing nuts, bolts and studs, bolt/stud and torque specs. https://photos.app.goo.gl/SU4r4Hq44fiDhjTeA
2H Oil Pressure Switch (EDIC) vs Oil Pressure Sender: https://photos.app.goo.gl/ebKWHFseRzXL1fGT9
2H Powered Toyota Forklift Images https://photos.app.goo.gl/kV9548ddDN6tYdKC8
Factory marketing images of the 2H engine: https://photos.app.goo.gl/qbmdogU1JCavqoNp7
Injection Pump
2H Manual Injection pump - identifying parts etc. https://photos.app.goo.gl/RTyKg4YRuijPPYah9
Adjusting the Fuel Control Screw: https://photos.app.goo.gl/HYrrksp6DhKEpK9V6
The three positions of the Fuel Control Lever: https://photos.app.goo.gl/aedRVhVoerrQ9tSRA
Lift Pump Rebuild kit: https://photos.app.goo.gl/ZK8EG8RKu69ghpcaA
2H Oil Filter Cross Reference List: https://docs.google.com/document/d/1eJ_a5gEtkZAuuEiPFczH_RMCSPgWr0IMPsI76MBDbxk/pub
Valve Adjustment - Page from Service Manual (includes valve numbering): https://photos.app.goo.gl/qh6eexcvkGeinPcB6
Using a 2H coupled to an "H" Bell Housing and 2H Starter Motor (photo credits/info Robert Mosely)- https://photos.app.goo.gl/gU4t4yA3BpE5buiv6
Fitting an Engine Guard to a 2H (Dual Probe Temperature monitor). https://photos.app.goo.gl/p257uyz3d4Xat7Ue8
2H Exhaust Manifold Stud Specification: https://photos.app.goo.gl/z1sPUBCfUgXPEvR57
Decoding Toyota Nut/Bolt part numbers - useful images: https://photos.app.goo.gl/c9BVyXsdsSHHLgdr6
2H Tacho Sensor/Pickup images and dimensions etc: https://photos.app.goo.gl/t468jPX18za1G4fa7
2H to 12HT conversion guide by Brennan Stone: https://docs.google.com/document/d/e/2PACX-1vR-n-JkQh5U6v6OclwS_8arkxtk7froU56j2ig-FmpJw01s5J1snWcJOwlQ_dIH3C7Jt8NyOxv76wT4/pub
A440F 2H/12HT Bell Housing Photos: https://photos.app.goo.gl/GZ3EG9P1nJErzmcc9
2H Dipstick images and measurements: https://photos.app.goo.gl/agynYb6jRyMHRKcQ8
2H/12HT Belt Diagram https://photos.app.goo.gl/LqEd1S1SfhBSnVEq9
Comprehensive service check and diagnosis guide (unknown origin/publisher): https://drive.google.com/file/d/1tTqFOmZg7FyTgD-wxeFJgILV4yvDL6lV/view?usp=sharing
EDIC
EDIC Circuit Diagram: https://drive.google.com/file/d/11a5lB2g3UirvGihyVDqViEZeHDdow-Dc/view?usp=sharing
Fuel Control Relay - full set of photos: https://photos.app.goo.gl/Ew6QXwQeNijUkghA8
2H Stop Cable Images: https://photos.app.goo.gl/C1cotdMzRNjLqjnm7
Oil Centrifuge
Early 2H Oil Centrifuge Part Numbers: https://drive.google.com/open?id=0B-KW6mdxQyjDTTlZanh4b2s5aVU
Early 2H Oil Centrifuge Images: https://photos.app.goo.gl/3rstP4tjNWgFwHYz5
Superglow
2H Superglow conceptual diagram: https://drive.google.com/file/d/1U7OnOI4vGtUV6FS1HlOmdNLPofeletFG/view?usp=sharing
2H Superglow wiring diagram: https://drive.google.com/file/d/1cAugTKCsva9CNNdHNOYRsW_oRnhXL3XD/view?usp=sharing
2H Superglow Checks:
Sheet 1 of 4: https://drive.google.com/file/d/1nX9X6LDHwGPjruHyx2_SG87SDIugC41D/view?usp=sharing
Sheet 2 of 4: https://drive.google.com/file/d/1G3bqlQ_V_HE8Wvhzq9SXx59Rd53d27G7/view?usp=sharing
Sheet 3 of 4: https://drive.google.com/file/d/1pqJgKKP0Vis8RUXXfKaCVlQIbZXonlb6/view?usp=sharing
Sheet 4 of 4: https://drive.google.com/file/d/1xLJCwB69_z74jw6WPQp8dqER19YGNach/view?usp=sharing
Manual Glow Switch Guide (HJ60, but same/same for most models): https://www.hj60.com.au/simplified-glow-system
Torque Specifications
Lubrication: https://photos.app.goo.gl/xDQFwRqkkMiLevqw7
"How to " Guides by Duncan/Caileigh
How to change Delivery Valve Gaskets: https://docs.google.com/document/d/19SHlXDMITHS1WiQXQa40kXlhrL2GIVzEpbyqhJ73XFk/pub
How to change the Injector Pump Diaphragm https://docs.google.com/document/d/1ZPvljDvzPpgPWnViWyJdNVVkYDdpIe9x_ppJcHW3jX4/pub
How to change the Pressure Relief Valve: https://docs.google.com/document/d/14ToAflxRfp2cm1Dy4RHpptTCtucyxJQ6pBI5ZLk1RNk/pub
How to find the Engine Number on a 2H Block: https://photos.app.goo.gl/qDkcbSGUzzZtsEXY6
How to adjust the Fuel Control Screw: https://photos.app.goo.gl/HYrrksp6DhKEpK9V6
How to fit a 2H into an HJ45 Chassis: https://docs.google.com/document/d/e/2PACX-1vQBnUiU_6VjKrYfL8-Krxsd7MnG-rmWq1XpmFWZsrljdRGkDueKYRWH3ybN232v4DVrUdsVdsa3znEv/pub
How to maximise the performance of a 2H engine: https://docs.google.com/document/d/1Exax-naX3REHEsphvBW_uUcA14Zf8WolfSzqpenQ7co/pub
Frequently Encountered Issues - resolution guides by Duncan
Starting Problems
Starting Problem -> "Click, no Crank": https://docs.google.com/document/d/1z9OWqg7EzNaphjOkt9i0UYwhHKg3VdMqSREhTp1n5A4/pub
Starting Problem -> "Crank, no start": https://docs.google.com/document/d/e/2PACX-1vSFrdV-uLXQVWnnBYtQzMlWL50UUctj_0vDphmpuTO0tRvkdK74CBS50CgpyoXqIrHCgZ4OoKukoJn9/pub
Starting Problem -> "Starts, but then stops when cold": https://docs.google.com/document/d/19uv1XRihJc72NN8d3LDBU-rtfkuIaGW18qUE6nihXkE/pub
Engine appears to briefly lose power every 10 seconds: https://docs.google.com/document/d/1QLOZmfRmmCzph8fZyzs3CgSOZ1VlmX11gMyKRNILOKU/pub
The fuel system is "sucking air": https://docs.google.com/document/d/1qXKR1Vwj5sX6R6tVLRebIYl4J-5uoU4Xd6II2Rfu_9Y/pub
Engine doesn't shut down reliably when the key is switched off: https://docs.google.com/document/d/1YXk5tC9Z4wOdNiRg21nvNlft0dvBzuyn3RT2ndnCNyI/pub
Engine is overheating: https://docs.google.com/document/d/e/2PACX-1vR6wTqIU6-58Mu/pub
Useful/Interesting Videos
Observing the fuel rack moving through the side inspection plate: https://www.youtube.com/watch?v=tVFuxBoFC88
Demonstration of how filling a 2H with oil too quickly can hydrolock the engine : https://www.youtube.com/watch?v=GGqll6SEG-k
Comparison of Good and Bad Blowby on 2H engines:
A look at a failed Lift Pump: https://youtu.be/Kk_862i004A
Installing a Wilson Switch (Manual glow control) on a Toyota diesel (3B in this case): https://www.youtube.com/watch?v=mxlgqLwYwp8
Oil Pump Replacement: https://youtu.be/1NI8VLgKg78
JH Hilux, 12HT Pump Rundown: https://www.youtube.com/watch?v=u3wMYF5hPBM
Himalayan Truck - Full 2H rebuild playlist: https://youtu.be/MpqTfmYajGw?list=PLWjeGDYf8wY-aZtgQ5Sz7GtIeLXebninN
2H Rocker Wear: https://www.youtube.com/shorts/dBWNGHAh6b0?feature=share
Removing harmonic balancer nut using starter motor: https://www.youtube.com/watch?v=rg55zuJtqDo
How to flash the 2H ECU Firmware to latest version (fuel economy improvements V5.4.1.2.191-2022): https://www.youtube.com/watch?v=dQw4w9WgXcQ
12HT Specific Reference Information
12HT Vacuum Piping Diagram #1: https://drive.google.com/open?id=1N4xoKPyLyEG3ZJZv6aLcXuM_YCBunkcq
12HT Vacuum Piping Diagram #2: https://photos.app.goo.gl/PcaTSGssH2uV5haMA
12HT Engine Block Images from ADS Injection: https://photos.app.goo.gl/cvRByk76CPs3qTFy5
Engine Australia Spec Sheet
Building a 12HT Compression Test Adaptor (Zac Shaw): https://photos.app.goo.gl/LgWTgHyjSCboJ2ZH7
HJ47 Specific Reference Information
HJ47 Wiring Diagram https://drive.google.com/open?id=0B-KW6mdxQyjDUGphM3BZTXI2Rmc
HJ47 Radiator modification when fitting HJ60 power steering: https://photos.app.goo.gl/Ybz4mtatYB9S22dU8
HJ60/61 Specific Reference Information
Chassis Body Manual: https://drive.google.com/open?id=0B-KW6mdxQyjDeXp0aXU3SmFDVUk
60 Series Maintenance Procedures: https://drive.google.com/open?id=0B-KW6mdxQyjDUFpHV0lwdTdQUDQ
HJ60 High Res Wiring Diagram (1985): https://drive.google.com/file/d/1BW5jgT5n8lCW4dabn9LSZvSyhmUDgQ4P/view?usp=sharing
HJ60/HJ61 High Res Wiring Diagram (1988): https://drive.google.com/file/d/14Ch8m0Fr1kb3sd0N0-w7aycLOXJthwks/view?usp=drive_link
HJ75 Specific Reference Information
H (Engine) Specific Reference Information
Factory Manuals
Engine Repair Manual (98112): https://drive.google.com/file/d/0B-KW6mdxQyjDNHlPUFYyQXUwZTA/view?usp=drive_link&resourcekey=0-2JVrOmRWEDUbRbRkztXN5w
Engine Australia Specification Sheet: https://drive.google.com/file/d/0B-KW6mdxQyjDdUxEMUkzNEZKVHc/view?usp=sharing&resourcekey=0-IzWLgsKa0x_xNEFECqV09A
Exploded Parts Diagram: https://drive.google.com/file/d/1z3T04dutqhy5ExGV_BoJb7Gb1i2MOQNM/view?usp=sharing
B (Engine) Specific Reference Information
B/2B Factory Service Manual.. https://drive.google.com/file/d/0B-KW6mdxQyjDMUhwRnlTX2tWUXM/view?usp=sharing&resourcekey=0-h3bJntdpLpA0blWwa9vj6A
B Engine EDIC Factory Service Manual: https://drive.google.com/file/d/1r0SG9TQA-NMAgLkULo1HuLoWlawKbmVN/view?usp=sharing
B Engine - Service/Tune Up Guide: https://drive.google.com/file/d/13zLgOxhtioVq-LGJKtdqHoa33XBe2Qhq/view?usp=sharing
B Engine Guide to Models (Describes specs of full range of B Engines) : https://drive.google.com/file/d/1YwJ9vc5B066RPO3YWn-1drDxD0nQN7WT/view?usp=sharing
3B (Engine) Specific Reference Information
3B/13B Factory Service Manual: https://drive.google.com/file/d/0B-KW6mdxQyjDeFdHcy16ZTI4ejQ/view?usp=sharing&resourcekey=0-05C0QxQRst6e_ZozsdOGqw
C/1C-T/2C/2C-T
36232E 1C/1C-T, 2C Engine Repair Manual (1983): https://drive.google.com/file/d/1oiIiFhjpQxdFW0k6nrc7k-_SIeEEIKzB/view?usp=drive_link
RM025E 1C/2C/2C-T Engine Repair Manual (1985): https://drive.google.com/file/d/1SmxU9cAkzdEY_8rfbdHrskLX0_J1dZiG/view?usp=drive_link
L/2L/3L (Engine) Specific Reference Information
L/2L Factory Service Manual (Aug 1984): https://drive.google.com/file/d/1dQwSTU68leU8A2yvm40bqgCnIkbJVf_7/view?usp=drive_link
2L-T/3L Jan 1990 Repair Manual Supplement: https://drive.google.com/file/d/1AFcxMG1igs_vmK0TWzsVDiGy_ceyxS5s/view?usp=sharing
2L-T Factory Service Manuals: https://drive.google.com/drive/folders/0B-KW6mdxQyjDTUNTcjRyeTBpM2c?resourcekey=0-qZd7_AmRBg62c8N-IMIPKA&usp=sharing
2L/3L/5L Late Service Manual (Aug 1997): https://drive.google.com/file/d/0B-KW6mdxQyjDbk41ZlZjU29SU0E/view?usp=drive_link&resourcekey=0-W8G9-x_7pkV-Hv7BhTRv_A
2L/3L/5L Late Service Manual - Supplement (Jun 1998): https://drive.google.com/file/d/1pOdTrbWd2pktuzsSm9NM2gXoQxK08-TA/view?usp=sharing
2L/2LT Exploded Parts Diagrams: https://drive.google.com/file/d/0B-KW6mdxQyjDOG03emR6QlVxdmM/view?usp=drive_link&resourcekey=0-BwwXbFuU9qfCHlP0OxnIJQ
2L-TE Cutaway Images: https://photos.app.goo.gl/7yej3eGni8KFCsS36
Superb webpage on the Bosch VE Injection pump: http://contrails.free.fr/engine_bosch_ve_en.php