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Oil blowback on my Bigshots!!

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  #1  
Old 07-21-2016 | 03:22 PM
reelheavy's Avatar
reelheavy
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From: Maryland
Default Oil blowback on my Bigshots!!

Its nearly impossible to not get any oil blowback from the A/C, and we went for a very long ride last weekend and some oil got cooked on to my pipes. I was wondering if there was anythink I could put on my pipes to get that dried up oil off?
 
  #2  
Old 07-21-2016 | 03:41 PM
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TinCupChalice
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From: Galt's Gulch - MI
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Not a whole lot of information here to work with but your engine oil level is going to determine much of your carryover issues. Are you venting crankcase gasses to atmosphere? If not, why not? My 103" is a carryover beast but I can keep it under control with accurate engine oil levels and external breathers; the engine oil never touches my Big Shots Staggered pipes. On a cold engine oil check no more than 3 1/2 hash marks on the stick.

Cleaning up the oil on the pipes is easy; you need to resolve your carryover problem. I run VR1 SAE 50 engine oil and externally vent crankcase gasses to atmosphere.

A good read here

Look in to external breathers that vent that hot, oily, oxygen depleted crankcase gas to atmosphere...

 
  #3  
Old 07-21-2016 | 03:51 PM
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reelheavy
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I have the DK customs 587 outlaw breather, and it has the breather bolts that go into the crankcase. I use Harley's 20W 50 synthetic. Should I look into installing a catch can like yours below the A/C?
 
  #4  
Old 07-21-2016 | 04:39 PM
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TinCupChalice
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From: Galt's Gulch - MI
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Originally Posted by reelheavy
I have the DK customs 587 outlaw breather, and it has the breather bolts that go into the crankcase. I use Harley's 20W 50 synthetic. Should I look into installing a catch can like yours below the A/C?
Honestly, I've got the breather bolts too, and I wanted them to work but my bike looked like it was next to a fried chicken contest; completely covered in SAE 50 in an afternoon ride. I've experimented with multiple different external breather set ups but really like the low mount filter external breather I'm using now.

The short runs on the hoses and the air flow through the filter as you're riding has given time to evaporate the oil before it condenses back out; I've had no drips of oil since I went to it.

I will be adding Trask Mystfree breathers and opening up the rocker support plate oil drain holes this winter but for now, this setup is working and I'm a happy camper
 
  #5  
Old 07-21-2016 | 05:34 PM
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128auto
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Check oil level. Most ppl put 3 qts instead of 2.6. Arlen ness air cleaner and big shot here never had oil leak since I lowered the oil level.
 
  #6  
Old 07-21-2016 | 06:44 PM
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OldEnuf2NoBtr
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Originally Posted by reelheavy
Its nearly impossible to not get any oil blowback from the A/C, and we went for a very long ride last weekend and some oil got cooked on to my pipes. I was wondering if there was anythink I could put on my pipes to get that dried up oil off?
You're running too much oil in the crankcase. Siphon out about 1/2 cup and go from there.
 
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