These instructions were originally written by David Owen in the late 1980's to assist first-time engine builders with their "MATE" project. David has updated them and kindly allowed Model Engine News to reproduce them here for private use. They remain covered by David's copyright, as does the MATE plans appearing in The Motor Boys Plan Book. Permission is granted by David for private usage only. Reproduction and redistribution in any manner whatsoever without permission of the copyright holder is prohibited.

Index

The numbers appearing in brackets refer to the drawing number and part reference in the Motor Boys Plan Book drawings.

BACKGROUND
	INTRODUCTION
	PRELUDE TO CONSTRUCTION
	WORKSHOP TOOLS
	MATERIALS
BUILDING INSTRUCTIONS
	BUSHING (2-1)
	VENTURI (2-2)
	BACKPLATE (2-3)
	CRANKCASE (1-1)
	PREPARING THE EXTRUSION MACHINING PART ONE MACHINING PART TWO MACHINING PART THREE
	CONROD (3-1)
	WRIST PIN (3-3)
	CRANKSHAFT (3-1)
	PROP DRIVER (7-1) AND PROP WASHER (7-2)
	NUT (7-3)
	CYLINDER (4-1)
	PORTING THE CYLINDER
	PREPARING THE CYLINDER LAP (5-4)
	LAPPING THE CYLINDER
	PISTON (5-1)
	CONTRA PISTON (5-2)
	PREPARING THE PISTON LAP (5-3)
	LAPPING THE PISTON AND CONTRA PISTON
	ASSEMBLY OF THE PISTON AND CYLINDER UNIT
	COOLING FINS (6-1)
	CYLINDER SCREW JIG (6-3)
	DRILLING THE SCREW HOLES AND TAPPING CRANKCASE
	COMPRESSION SCREW (6-2)
	CYLINDER SCREWS (6-4)
	NEEDLE VALVE ASSEMBLY
	NUT (7-5) COLLET (7-6) SPRAYBAR (7-4) NEEDLE (7-7)
	TIMING THE CRANKSHAFT INLET PORT
	FINAL ASSEMBLY
	PREPARATIONS FOR RUNNING
	RUNNING THE "MATE"
	IMPERIAL CONVERSION

 

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As the original text for David's instructions had been lost, an ancient paper copy was scanned and converted using Optical Character Recognition (OCR) software. It got it mostly right, and we've found most of the glitches. If something does not make sense, please email us with the page number and reference number.

 

This page is Copyright © David Owen 1989-2006. All rights are reserved world-wide.
Reproduction in any form without the written permission of the copyright owner is prohibited.