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Tech Manual
The complete tech manual encompassing all of Johns MG guides.
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Tech Guides
Barrie's Notes -
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DVDs
MG Factory DVD -Factory Training Films #1, "Pride of Abingdon", "MG Midget Then and Now", "MGB Features", and "Scheduled Maintenance".
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Talking Tour of MGB MKIV - A complex overview of the Mark IV MGB, with detailed instructions of owner operation and some maintenance.
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Under Construction
Q & A: Lucas Distributor Point Gapping
John,
The distributor is a Lucas 41599B4504 4274. After removing it to get the number I checked the points and regapped to .016 inches the car idle was really low. I readjusted the idle to 900 RPMs. The dwell is 44 degrees, but I am noticing condensation on the aluminum spacer that came with the side draft weber carburetor I installed. When revving the engine to 2000 - 2500 RPM the engine feels less smooth.
Thank You for your help!
Randy
Randy,
That distributor is a 45D4 and should have a point gap of 0.015" for
a dwell of about 52 degrees. Set the timing at 15 before top dead center at
1500, vacuum disconnected. See how that works.
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#152 1957 MGA Engine
It makes no difference how quickly your MG will accelerate if it cannot
stop! The proper functioning of your brakes must ALWAYS be at the
top of your list of priorities. You owe this degree of safety to yourself,
your passenger, and all others on the road.
John H. Twist (Fall, 1980)