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

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  #41  
Old 25th November 2020
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GM,

How do you think we did it 40 years ago with no tinternet, hard to find FSMs and ironheads owners 200 miles apart????

I used to live in a 350 000 people town in the 80s, 5 harleys, that is 4 glides and my 76 Sportster... Still... I must have had the fastest Sporty of the whole country looking at all the scraps I had with nippondenso stuff...

WE USED OUR HEADS

And we followed the 1st rule of engineering, don't mess up with what's working fine...

I cannot believe your bike is so full of problems, so I can only think you have created yourself the whip to crack your own back!!!

Just a tip... Don't follow the route of honing the main shaft outer race with a brake hone... By the time you remove what's needed, say 2 thou, the race will be ovalized and scrap... Any honing on a HD should be done with proper non flexible honing arbors, not to mention guiding them if at all possible.

Patrick
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  #42  
Old 25th November 2020
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This X 10

"Just a tip... Don't follow the route of honing the main shaft outer race with a brake hone... By the time you remove what's needed, say 2 thou, the race will be ovalized and scrap... Any honing on a HD should be done with proper non flexible honing arbors, not to mention guiding them if at all possible."
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  #43  
Old 25th November 2020
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Quote:
Originally Posted by thefrenchowl View Post
GM,

How do you think we did it 40 years ago with no tinternet, hard to find FSMs and ironheads owners 200 miles apart????

I used to live in a 350 000 people town in the 80s, 5 harleys, that is 4 glides and my 76 Sportster... Still... I must have had the fastest Sporty of the whole country looking at all the scraps I had with nippondenso stuff...

WE USED OUR HEADS

And we followed the 1st rule of engineering, don't mess up with what's working fine...

I cannot believe your bike is so full of problems, so I can only think you have created yourself the whip to crack your own back!!!

Just a tip... Don't follow the route of honing the main shaft outer race with a brake hone... By the time you remove what's needed, say 2 thou, the race will be ovalized and scrap... Any honing on a HD should be done with proper non flexible honing arbors, not to mention guiding them if at all possible.

Patrick

Patrick so this race in question, there is a specialized Harley tool to lap this, but will an ordinary machine shop have the means to do the job without the special Harley tool?
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  #44  
Old 25th November 2020
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Patrick I think your 35 is a little short. Looks like 34.99997 to me. Might want to measure that one.

Any good shop with a Sunnen hone can do it.
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  #45  
Old 26th November 2020
Iron Mike Iron Mike is offline
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A lap is not a Harley tool. Lapping has been going on for years. Harley did not create or patent a round concentric hole.
You may think your getting away with something by using a flimsy brake hone, but it is masking reality. Yes you may get your rollers in there , but the home will only follow the existing profile, giving you a surface you could surf on. People that have done this in the past have gotten away with it, but that is the difference in an eng going 10,000 miles or one that goes 150,000.
Stack up a bunch of those backyard fixes, and you’ll have a brand new shiny collection of crap.
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  #46  
Old 26th November 2020
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Originally Posted by ryder rick View Post
Nope, synthetic oil is what makes them skate.
That is not true,I have been riding for YEARS with full synthetics in all my shovel and Evo ,and I have never had anyone fail ,something that you here often but definitly not true,Ray
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  #47  
Old 26th November 2020
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Quote:
Originally Posted by thefrenchowl View Post
Yep, Steve, only way to calibrate at home...





Patrick

I been trying to figger out how old that laptop is... geeez, it isn’t a laptop!


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  #48  
Old 26th November 2020
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Quote:
Originally Posted by saddlebagrail View Post
That is not true,I have been riding for YEARS with full synthetics in all my shovel and Evo ,and I have never had anyone fail ,something that you here often but definitly not true,Ray
Don't take me too seriously, that was a poor joke.
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  #49  
Old 26th November 2020
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Originally Posted by ryder rick View Post
Don't take me too seriously, that was a poor joke.
some still think this is the case, that need to be clarify
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  #50  
Old 28th November 2020
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Quote:
Originally Posted by thefrenchowl View Post
Yep, Steve, only way to calibrate at home...





Patrick
Patrick

That's what I was talking about!

I know you send them out yearly to be re-certified
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