Introduction
This manual provides a detailed guide on how to change the head gasket of a 1990 UK model Lotus Elan M100.
Disclaimer
The author takes no responsibility for any work carried out on the car and advises readers to take necessary safety precautions and have mechanical engineering knowledge.
The Process
The process involves removing the bonnet, coolant header tank, and crankshaft bolt, followed by the removal of the alternator and PAS belts, crank pulley, and cam belt covers.
The author provides tips and precautions to take during the process, including using impact sockets, torque wrenches, and labeling removed parts.
Technical Aspects
The manual highlights the importance of setting the cam belt tensioning pulley correctly and ensuring the relative positions of the crank pulley and cam pulleys are set correctly.
Investigation and Observations
The author describes the condition of the old head gasket, including oil leaks, damage to oil and waterway holes, and delamination of the gasket material.
Reassembly
The manual provides a step-by-step guide on how to reassemble the engine, including fitting the new head gasket, water pump, and cam belt.
The author emphasizes the importance of following the recommended procedure for tightening head studs and cam cover studs.
Manual:
Download: Lotus Elan M100 1990 UK Model Head Gasket Change Manual
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