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Old 04-14-2003, 09:20 AM   #1
Long Knight
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Question Vac. Advance Question

I need to change out my vaccum advance thingy but the screws WILL NOT BREAK LOOSE! Question one: How much difference does the vac. advance make? Question two: What are some ideas besides WD-40, swearing, and beer to break those screws loose?

P.S. What is the spark plug gap supposed to be?

Thanks a ton everyone!

Ro
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'71 C-20, 350ci, TH350, Edl. 1406 Carb w/elec.choke, Ignitor ignition, Viper Tires, Orange Dipstick
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Old 04-14-2003, 09:26 AM   #2
JimKshortstep4x4
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Talking

I use Aerokroil penetrant.

Try penetrant on the screws for a while and then hit the screws using a hammer on your screw driver to jar them.

Vacuum advance helps your mileage.

Spark plug gap .035 for points, .045 to. .050 for HEI.

Jim
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Old 04-14-2003, 09:33 AM   #3
Long Knight
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Thanks a bunch JimK! I have to make a trip to St. Louis this weekend to pick up a cycle, so I guess I better get it changed out to get all the milage I can.
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