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  #841  
Old 7th November 2019
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bustert bustert is offline
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yep, looks like you need a mini lathe. unless you buy high dollar fasteners, the heads do not necessarily line c/l to the shank since the are forged before the thread is rolled on.

throw this out to see if there is an itch?

does it really matter on hole size?? think about it, where is flow control actually initiated? is it not the umbrella? that said, the hole probably is there to prevent over-whelming the separation chamber.
all-in-all, the iron centrifugal separator seemed to fair best.
on my 01 sport, the holes are bigger than stock since i have custom made mounts. yet, i have no issues with oil in the cleaner and if i did, it goes directly into the moving air stream. i have never seen oil in the carb throat, not to say with engine wear it will not come. when it gets to that point, top end is needed anywho.

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  #842  
Old 7th November 2019
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Quote:
Originally Posted by Tomcatt View Post
Are you running the latest big scavenge section oil pump or one of the earlier versions?
Dangit, I'm running the 07 pump.
I've still got my 98 pump though.
I need to get some clear lines for the vent and return lines also.

Quote:
Originally Posted by bustert View Post
does it really matter on hole size?? think about it, where is flow control actually initiated? is it not the umbrella? that said, the hole probably is there to prevent over-whelming the separation chamber.
[/img]
Looks like initial scuttlebutt was wrong about them disassembling the shop.
I'd take out a loan in a heartbeat for them there machines.
But I may need to start looking for something else.
I hate gearheads....

I'd think if the hole size didn't matter, they wouldn't have changed them.
But we have theorized a bit on the job of the smaller hole, so while I'm here, I just want to see if I can tell any difference.

You're right, flow control is initiated by the umbrellas.
The smaller holes may aid in separation between the umbrella and the outlet or as you say to not overwhelm the chamber.
But within that reasoning, with your bigger holes, wouldn't that underwhelm the chamber?
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  #843  
Old 7th November 2019
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Well, if that ain't interesting.

The smaller bolt holes actually reduced vacuum.
(maybe the higher restriction doesn't immediately suck the umbrellas shut, allowing less vacuum to form on upstroke?)
And they also offer more control of CC pressure throughout the RPM range.
(maybe like bustert mentioned but as in preventing over-whelming the overall pressure)
It creates lower pressure swings.


Starting height:


Same RPM (1000), one bolt restricted:


Begin test RPM (1000), both bolts restricted:


2000 RPM:


3000 RPM:


4000 RPM:


5000 RPM:


edit:
Now I gotta go and redrill some some more bolts.
I left the A/C off since it doesn't change anything.
There was no noticeable oil mist coming out the breathers during this round.

Last edited by Hippysmack; 8th November 2019 at 03:10.. Reason: moved pics to Sportsterpedia
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  #844  
Old 7th November 2019
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The RPM burbling.

I'm starting to think it may be electrical in nature.
Or maybe it's just the battery..

During this last round of testing around 3000, the lights went out and the engine died.
(edit: rather after this round of testing)
I fired it back up and the starter dragged but fired up the engine, lights went out, engine died.
I started it again, starter dragged, and there was a pop in the exhaust and the problem went away at 4100.
Still there around 5500 though.

Last edited by Hippysmack; 7th November 2019 at 22:00..
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  #845  
Old 8th November 2019
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I've moved the testing pics over to the Sportsterpedia (still linked to this thread).
All of the testing is now on that page also if anybody wants to easily flip between the pics.
http://www.sportsterpedia.com/doku.p...cals_-_sub-04g
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  #846  
Old 9th November 2019
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Yep, I believe it is electrical.
My stator is shot.



That explains my battery going dead at the gas station a few months ago.......
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  #847  
Old 10th November 2019
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I'm not going to be able to get to this anymore this year. It's been winterized and I don't want to run it and cause any condensation issues. It's been a damn cold fall here. Should be in the 50s and we've been lucky to even get above freezing the past few weeks.
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  #848  
Old 10th November 2019
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That's OK.
It's going to take me a little while to come up with stator money.
Life happens......
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  #849  
Old 10th November 2019
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well, could start by selling the hf vom. take a look-see as it may just be a burned connection on the winding to harness pigtail. if you are lucky, you maybe able to reconnect, i wasn't so lucky but that is where mine failed, windings were ok.

winterize??? what is that??? not a fair weather rider, threw the beaumont enterprise 3 years like a postman. darn cold sometimes, had to burn a customer's paper to warm up since the engine produce no heat.
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  #850  
Old 10th November 2019
Tomcatt Tomcatt is offline
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Quote:
Originally Posted by Hippysmack View Post
It's going to take me a little while to come up with stator money.
Life happens......
I know that feeling. Pull the stator out and physically check it. You might get lucky and have good windings but wiring issues after the windings. That's fixable.
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