Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing Technical data for 1937 - 1939 Morgan 4/4

I have come across a data sheet once published by Newnes Motor Repair and Overhauling for the late 1930s 4/4. It has details such as firing order, Solex carb jetting,valve timing, ignition timing, tappet clearances, plug gaps, toe-in of front wheels, tyre and oil pressures, recommended lubes and battery capacity.
Anyone out there need any such info??

I have a 1938 Series 1 4/4. It may be interesting to see what is being spec'd.

Cheers,

Hi Mark B
Firing: 1,3,4,2; Solex choke 30-23, main 115, compensating 210, pilot 60. Valves (set with 6thou clearances) Inlet open 10 BTDC, Close 50 ABDC, Exhaust open 50 BBDC, Close 10 ATDC. Ignition timing: contact points begin to open at TDC (shown for cylinders 1 or 4 when line on flywheel opposite hole in case) . Tappets (cold) inlet .006 inch, exhaust .010 inch. Plug gap .022 - .025; distributor gap .012 - .015; front wheel toe in 1/8 inch max. Oil pressure 40 psi; oil grade 50 in summer and 40 in winter (UK temperatures I guess) Battery 57 ah.
Front tyres 5.00-16 18psi or 4.50-17 21psi.
Hope you ind useful.

Some good stuff. Do they indicate which engine. Standard Special or Coventry Climax??

Cheers,

Sadly not. There are two columns on the sheet labelled 1939 and 1937-38 but no engine type. Details in both columns are identical! I think the Standard engine was introduced in 1939 but whether it would have same settings as CC engine is debatable?

Makes sense. I suspect CC as you surmise.

Cheers,
Mark

I saw this thread a bit late. But if someone is interested I still have some pdfs for these cars. Instruction manual, lubrication chart, repair manual.
Send me a PM if interested.

very likely the engine is the coventry climax!