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Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

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  #1  
Old 3rd July 2009
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Default Advance Unit

Anyone know if the advance units for our bike can cross reference to an older model car/truck? That way we could just walk in to our local automotive parts store and pick one up or get replacement springs.

For example you can get our points at a parts store if you ask for a points set for a 56 chevy.
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  #2  
Old 3rd July 2009
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I`ve been aroound motors since before the World Fair in Flushing and have never
seen anything even closely resembling what we have.
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Old 3rd July 2009
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I wonder how many shops carry advance unit parts for cars anymore?

Points and condensers are commonly changed parts. Until I got a Harley, I never heard of an advance unit wearing out. I drove all of my old points cars well over 100K miles each, and I never had an advance unit wear out before.

Chris
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  #4  
Old 3rd July 2009
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Quote:
Originally Posted by 72 Ironhead XLH View Post
I`ve been aroound motors since before the World Fair in Flushing and have never
seen anything even closely resembling what we have.
That was my fear. I was hoping that we could all find a simple solution instead of having to wait for another replacement to come in.

Quote:
Originally Posted by Shadowdog500 View Post
I wonder how many shops carry advance unit parts for cars anymore?

Points and condensers are commonly changed parts. Until I got a Harley, I never heard of an advance unit wearing out. I drove all of my old points cars well over 100K miles each, and I never had an advance unit wear out before.

Chris
I believe a lot of the failure problems that come from our points/condenser's failing is because of the shotty seal design that's supposed to seal the oil back from the cam case. Once that oil gets in the that case I think it degrades the points.
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Old 3rd July 2009
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Car advance units are much bigger and heavier, so dont wear out as quick, and are not subject to quite the level of vibration as on an Ironhead.
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