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Old Mar 15, 2019 | 02:26 PM
  #31  
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Oh yeah, C1018 would warp like crazy if you milled along the length. Too soft anyway.
 
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Old Mar 15, 2019 | 03:36 PM
  #32  
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Originally Posted by Mertoid
Oh yeah, C1018 would warp like crazy if you milled along the length. Too soft anyway.

4130 steel has more strength primarily due to 2 elements present in it, namely;-

1.) Molybdenum - 0.15 to 0.25

2.) Chromium - 0.80 to 1.10

The above elements provides the strength that a SAE 1018 grade steel doesn’t.

Additionally (not the sole reason), the carbon content is higher in 4130 grade - .28 to .33 compared to 1018 grade with carbon content of .15-.20.

One point to keep in mind is that adding more carbon to steel does not necessarily make it stronger; if added beyond a point, it can make the material extremely hard, but also brittle, and hence not desirable.

Hope that was of any help.

 
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Old Mar 15, 2019 | 04:38 PM
  #33  
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Originally Posted by Gary1
Why not put a vent on trans and primary and eliminate any pressure differential.
Originally Posted by Mertoid
A vent on the primary should help, I'll do that. The transmission already has one.
Guess I'll have to try a rod without a flat...
There are posts from people with problem transfer issues under warranty. They claim they have been fixed because a MoCo Rep installs a vent on the primary.

A couple pics have been posted... some look terrible, some not so bad..
 
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Old Mar 22, 2019 | 10:26 AM
  #34  
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I made a slot on the inside of the side cover at the 7 o'clock position of the actuator pocket for oil to drain out of the pocket. Also added a primary vent. So far no more transfer and this bike was a heavy transfer.
 
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Old Mar 22, 2019 | 11:00 AM
  #35  
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Originally Posted by drod
I made a slot on the inside of the side cover at the 7 o'clock position of the actuator pocket for oil to drain out of the pocket. Also added a primary vent. So far no more transfer and this bike was a heavy transfer.
Can you explain how you vented the primary?
 
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Old Mar 22, 2019 | 12:23 PM
  #36  
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Would a vent even be necessary if you're keeping the oil drained away from the shaft end?
Any pics of the 7 o'clock slot?
 
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Old Mar 22, 2019 | 01:01 PM
  #37  
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Originally Posted by Mertoid
Would a vent even be necessary if you're keeping the oil drained away from the shaft end?
Any pics of the 7 o'clock slot?
go here:

https://www.hdforums.com/forum/milwa...l#post18097944
 
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Old Mar 22, 2019 | 01:08 PM
  #38  
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Originally Posted by Mattbastard
Not an M8 tho.
 
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Old Mar 22, 2019 | 03:06 PM
  #39  
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I going to go back and hide the primary vent better...this was just to see if it would work...


Originally Posted by Mertoid
Would a vent even be necessary if you're keeping the oil drained away from the shaft end?
Any pics of the 7 o'clock slot?
 
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Old Mar 22, 2019 | 06:16 PM
  #40  
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Originally Posted by Max Headflow
Not an M8 tho.
You sure about that? That pic is for reference, scroll down. That's $tonecold's recent post from the "Fix is In" thread.
 
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