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Author Topic: Fueling breather vent line  (Read 2903 times)

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porthole

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Fueling breather vent line
« on: March 26, 2010, 11:16:24 PM »

After doing cams, plate, and oil pump I had great oil pressure. I installed the SE plate and pump kit AND added a Fueling spring. There is debate as to whether that is too much. But my oil pressure is good, even hot and at idle I have 15-20 PSI. Also did a Baker "Plus 1" oil pan at this time.

I don't know what caused the problem but I had the dipstick launch twice out of the bike. Losing a dipstick at 6000 rpm instantly coats the bike in oil - and you get a bit of it too.
First time I went back and found the dipstick. 2nd time all I found was the cap the snaps on.

I got a HD temperature reading dipstick (only one they had in stock) and even though that dipstick locks in it was still moving out a bit.
(By the way the temp reading dipstick is not waterproof in a toad strangling rain).

I got a Fueling Vent line during 20% night, hopefully this will eliminate the dipstick issue.
« Last Edit: July 14, 2014, 10:07:23 AM by porthole »
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porthole

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Re: Fueling breather vent line
« Reply #1 on: March 26, 2010, 11:16:54 PM »

.
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porthole

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Re: Fueling breather vent line
« Reply #2 on: March 26, 2010, 11:17:50 PM »

Didn't care for the routing directions supplied by Fueling so I ran the hose up through the frame and have it coming out above the ECM
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porthole

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Re: Fueling breather vent line
« Reply #3 on: March 26, 2010, 11:18:44 PM »

From there it runs along the frame rail and then loops around and back down to the cavity under the battery.
« Last Edit: March 26, 2010, 11:25:50 PM by porthole »
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porthole

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Re: Fueling breather vent line
« Reply #4 on: March 26, 2010, 11:19:52 PM »

The filter is just visible behind the starter or with the side cover off I can get a better view of it.
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Twolanerider

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Re: Fueling breather vent line
« Reply #5 on: March 26, 2010, 11:22:33 PM »

Just an FYI Duane.  Something to watch for.  A guy I know here has one of those.  The horizontal braided line over time rubbed through the chrome on the tranny cover.  Line was large/stiff enough he never permanently kept the line off the corner of the cover either.
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porthole

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Re: Fueling breather vent line
« Reply #6 on: March 26, 2010, 11:22:39 PM »

My already modified to fit Trans interface cover had to come under the knife again to clear the new hose.
« Last Edit: March 26, 2010, 11:29:43 PM by porthole »
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porthole

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Re: Fueling breather vent line
« Reply #7 on: March 26, 2010, 11:23:53 PM »

I used a jig saw to trim the cover to fit.
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porthole

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Re: Fueling breather vent line
« Reply #8 on: March 26, 2010, 11:25:15 PM »

It actually looks better then what shows in the picture. Besides after having the cover on for so long it looks strange with out it.

Have had the bike up to 6k several times now and all is good.
« Last Edit: March 28, 2010, 01:11:27 AM by porthole »
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porthole

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Re: Fueling breather vent line
« Reply #9 on: March 26, 2010, 11:27:54 PM »

Just an FYI Duane.  Something to watch for.  A guy I know here has one of those.  The horizontal braided line over time rubbed through the chrome on the tranny cover.  Line was large/stiff enough he never permanently kept the line off the corner of the cover either.

hey Don - although it looks like it hits it actually is just clearing the allen head cover on the front right screw. That is the "CPA"
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Twolanerider

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Re: Fueling breather vent line
« Reply #10 on: March 26, 2010, 11:29:23 PM »

hey Don - although it looks like it hits it actually is just clearing the allen head cover on the front right screw. That is the "CPA"

That's good.  Don't know if his moved over heating and cooling cycles or just running around.  Just remember him farting with it and thinking it was clear then later it'd be touching again.  Until you know it's staying where you want it just something to keep an eye on.
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porthole

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Re: Fueling breather vent line
« Reply #11 on: March 26, 2010, 11:59:03 PM »

Yep will do.
I think the screw cover is helping to stay away a bit - and those are easy enough to change.
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Unbalanced

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Re: Fueling breather vent line
« Reply #12 on: March 27, 2010, 08:10:35 PM »

Duane,

Sounds like you have to much crank case pressure that is firing off that dipstick.   Have you considered removing the spring and putting back in a stock spring to see if it resolves the issues.  As I understand it, the spring doesnt change your scavaging only what you see on the gauge.

You should be able to punch out the dowel and replace the spring without having to tear it down  :nixweiss:

FWIW, I removed a braided cable on the 05 cause it ate through the power coat from rubbing :(   using a stock rubber hose now with ugly clamps.  The wonderful Harley Chrome line increases the pressure in the crank area over the big ugly hose, it is a more narrow passage.  It doesnt seem like much of a difference to the eye, but it is in diameter and flow.

Have you considered venting your heads to the ground instead of the intake or air filter / backplate if you are not doing so already?

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Twolanerider

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Re: Fueling breather vent line
« Reply #13 on: March 27, 2010, 08:22:23 PM »



Have you considered venting your heads to the ground instead of the intake or air filter / backplate if you are not doing so already?



That's all I did on the red bike.  After the Buttonfly Resurrection (i.e., no more Zippers) it would think about spitting out the dipstick if you really got in it.  Just vented the heads to atmosphere rather than the breather to take the pressure down a bit.  Never had any more problem.
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Re: Fueling breather vent line
« Reply #14 on: March 27, 2010, 08:47:21 PM »

Duane,

Here is a backplate I modified to breath to the ground.  I had a friend put a weld on the end of the banjo bolt and drill a hole in the bolt just above where the threads ended so that any oil or pressure would be vented to the new barbs and hoses I put on to the backplate.  I ran both sides into a T and one line to the ground.  The only place you have to be cautious is where you place the barb on the spring side of the throttlebody so that it does not get in the way of your throttlebody or cables.

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