Nigel the 1977 MGB - Top End Assembly

Lots to cover in this one; Lapping Valve Seats Installed Valves (differences in intake valves for the 12H-2923) Replaced Tappets(Lifters) Evaluated and replaced Pushrods Installed Rocker arms Installed new head gasket Torque Cylinder head Adjusted Valves for initial engine start. (Rule of 9) This is quite a long video, sorry. I will mark chapters so you can easily refer to sections of interest. (once loaded) 0:00 Head preparation review 13:05 Tappet (Lifters) install 19:27 Cleaning Valve Guides 39:00 Valve Lapping 44:28 1.70" Gas Flow vs 1.625" intake valves 51:03 Water leak test 1:05:02 Installing Valve Springs 1:12:37 Engine Block Prep for Head Install 1:13:58 Drop head into place 1:15:29 Test Push Rods 1:23:48 Install Rocker Assembly 1:26:45 Torque Head Bolts 1:27:58 Rule of 9 (to adjust Valves) 1:34:00 Adjust Valves Gas Flowed Intake valves are back ordered everywhere. so I guess it was a good decision to clean up the ones I had. https://mossmotors.com/valve-intake-1... if your Head is a 12H2923 you can likely use the 1.625 intake Valves. https://mossmotors.com/valve-intake-1...