OPEL TECH NOTES & DOWNLOADS
|Opel GT Digital Catalog (v2.1)
|Opel GT Source Online Catalog (Classic Format)
|Opel GT Body Kits & Aftermarket Wheels
|Opel Manta Digital Index
|Getting Started & Ordering Notes
|Opel GT Model Identification
|Opel GT Paint Project Notes
|Opel GT Exterior Lights
|Opel GT Headlight Notes
|Opel 1900CC Engine Tuning and Vacuum Notes
|Opel 2000CC Engine Upgrade
|Opel Fuel System Notes
|Opel GT Suspension & Brake Notes
|Opel GT Driveline Notes
|Opel GT Heating & Cooling System Notes
|Opel GT Electrical System Notes
|Opel GT Interior Notes
|Opel Tech Notes TBA
|Opel GT Exhaust Notes
We recommend installing a new European-made Weber 32/36 carburetor, and protecting against ethanol-fuel issues using our heat shields, air filter and header options. You should also replace fuel tank hardware, including vent tubing.
Replace hoses and fan belt, install improved-design water pump and consider radiator upgrade. In warm climates, install lower-temp thermostat.
Ensure battery is charged, and replace all charging system cables and wires. Clean or replace battery mount tray. Rewire GT headlights, and consider upgrades like modern-type starter, voltage regulator, electronic ignition, halogen headlights, and replacement of the GT ignition switch.
Verify valves are adjusted, and test for compression. Inspect for leaks, and regasket if needed. Verify oil pressure measures "2" or higher on gauge at warm idle. Replace oil filter and use conventional 20/50W oil, plus ZDDP additive and camshaft oil dam to help protect camshaft and lifters.
Inspect torque tube bushings for wear. Inspect rear axle gaskets and seals for leaks, including pinion seal. Inspect transmission case and lower pan for leaks, and inspect transmission mounts for wear. Check clutch and clutch cable for wear, and inspect rubber boots on bellhousing and cable for cracking. If equipped, check automatic transmission for leaks.
Inspect bushings and hardware for wear, including ball joints, tie rods and steering rack boots. Bounce-test shock absorbers. Consider handling upgrades including polyurethane bushings, springs and sway bar kits.
Replace rubber hoses. Inspect and consider replacing front calipers, rotors, and pads, and rear brake shoes and drums with new hardware if worn or sticking. Consider our "combo" upgraded master cylinder and booster, for optimal braking required for modern driving.
Replace all old or cracked rubber to prevent leaks, both on the upper body and the underbody. If considering a repaint job, plan ahead and acquire all needed parts in advance of starting work.