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> Distributors, rotors turn right?
evan
post Jun 28 2006, 07:23 PM
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Should my rotor and the metal tube it sits on be able to turn 360 deg. by hand as if the engine is cranking? Makes me think the total distributor is broke... Thus then how do I know what size / kind to replace it with. AA in atlanta wants serious bucks and other online are like 1/4 of the price but not sure if am looking at the correct replacements.

help

evan
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lapuwali
post Jun 28 2006, 08:40 PM
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Not another one!
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When the distributor is pushed down, friction can often make it turn when the engine is cranking, even when it's not properly engaged to the drive. Pull out the distributor and look down the hole to see how the slot is aligned. Align the corresponding tab on the bottom of the distributor to match. Insert the distributor and try to engage it. It may take a bit of wiggling on the rotor to get it to seat properly.

If you pull out the distributor, hold the drive dog, and try to turn the rotor, you can turn the rotor quite a few degrees against spring pressure, which is the advance mechanism working. If you can turn it more than 45 degrees, there's a problem. If you can turn it all the way round, then something is broken. There's a pin that holds the drive dog to the shaft (under that spring), which may be missing or broken. The advance mechanism may also be broken, as the shaft is actually two pieces, upper and lower, connected by the advance mechanism.

If the distributor is OK, and you're 100% certain the drive is seated in the slot, then the distributor drive in the engine is broken or missing, and you're looking at an engine teardown to fix it.
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evan
post Jun 28 2006, 08:44 PM
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QUOTE(lapuwali @ Jun 28 2006, 06:40 PM) *

AAAAAAAAAAAAGGGGGGGGGGGGHHHHHHHHh
A tear down is not what I wanted to hear!! Nor will the wife!
Thanks, will let you know.
e


When the distributor is pushed down, friction can often make it turn when the engine is cranking, even when it's not properly engaged to the drive. Pull out the distributor and look down the hole to see how the slot is aligned. Align the corresponding tab on the bottom of the distributor to match. Insert the distributor and try to engage it. It may take a bit of wiggling on the rotor to get it to seat properly.

If you pull out the distributor, hold the drive dog, and try to turn the rotor, you can turn the rotor quite a few degrees against spring pressure, which is the advance mechanism working. If you can turn it more than 45 degrees, there's a problem. If you can turn it all the way round, then something is broken. There's a pin that holds the drive dog to the shaft (under that spring), which may be missing or broken. The advance mechanism may also be broken, as the shaft is actually two pieces, upper and lower, connected by the advance mechanism.

If the distributor is OK, and you're 100% certain the drive is seated in the slot, then the distributor drive in the engine is broken or missing, and you're looking at an engine teardown to fix it.
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Posts in this topic
evan   Distributors   Jun 28 2006, 07:23 PM
type47   my answer to your question is that the distributor...   Jun 28 2006, 07:34 PM
Al Meredith   You probably should push the distributor down in i...   Jun 28 2006, 07:36 PM
evan   Hey Al & Jim, My short question is what kind...   Jun 28 2006, 07:58 PM
Rand   If the rotor spins freely by hand when the engine ...   Jun 28 2006, 08:11 PM
evan   Rand, thanks for the info. The Rotor and the shaf...   Jun 28 2006, 08:26 PM
lapuwali   When the distributor is pushed down, friction can ...   Jun 28 2006, 08:40 PM
evan  
 

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