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Tech Manual
The complete tech manual encompassing all of Johns MG guides.
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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
September 29th, 2008
Q & A: PerTronix Wiring
Tuesday January 03rd, 2006
John,
I have referred back to your tech tips many times while restoring a 77 MGB for my 16 year old son. Not sure if you reply to questions but thought I would give it a try.
The car in question came to me with a PerTronix Ignitor installed and during restoration I began to question the wiring of the Ignitor. The car is running and is driven daily to and from Soccer practice. The reason I questioned the wiring is because I noticed the Coil was getting very HOT. The Coil is now wired hot through the resisted wire and the ignitor is fed 12 volts. Should the ignitor be fed through the original resistor? I went to the PerTronix web site for answers and learned nothing.
Kevin
Kevin!
The coil gets hot because it is "on" too long or because the primary wiring has shorted -- unless it's wired wrong to start with.
There are two coils: one has 3.5 ohms internal resistance; the ot... read more
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#152 1957 MGA Engine
Tip of the Day
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)