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79 International resister or no resister
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valleybusman
User
Jan 18, 2011, 10:07 PM
Post #1 of 2
(1045 views)
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79 International resister or no resister
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I have a 79 S series truck with a 345 and a allison auto and it has over 100 thousand miles . The other day it started losing power and acted like it was starving for fuel . So I replaced the fuel pump and filters . Took it out and it started backfiring and losing power . I then thought plug wires . Started it up and the back firing was worse . Checked all my wires and timeing .Right on . I had an old coil around and threw that on and it quit backfiring and had more power . So I wnet to the parts store and the sold me the coil for this application .Well I went to install it and it says it needs a resister . There wasn't one already on the truck and the coil was not original .The ignition is electronic prestolite . Do I need a resister for this coil or should I get another coil . Will it hurt to run the coil without a resister ?
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 19, 2011, 5:58 AM
Post #2 of 2
(1043 views)
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Re: 79 International resister or no resister
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Resisters are used in conjunction with ignition points to reduce the voltage to the points and make them last longer. If you don't have points, then you don't need to use a resister. It's not the coil that's being protected but some of the older type coils have the resister built right into them. You don't need that.
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