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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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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: Five Degrees
Tuesday January 03rd, 2006
John,
So the more the worm gear has worn, the deeper drive gear shaft will drop on to the cam gear. This would translate into a larger rise and fall and great degree of rotation. I am assuming the five degrees is from full down to full up against the distributor clamp plate. I am visualizing this from memory (I have owned this car for 33 years).
Also, what is the best way to test the tolerance on the drive gear? The 1970's autocross cam has about 15k miles on it so should be ok.
Rick
Rick!
To determine the rotational freeplay of the distributor drive gear: Remove the distributor; insert a long 5/16-24 bolt (perhaps one is available from the HS air cleaner?) and snug it into the drive gear. Clip a pair of Vise-grips to... 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)