| Author |
Message |
    
Rick_a
| | Posted on Tuesday, July 19, 2005 - 08:40 am: | 
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Your breather is a cool solution...but I put one together myself. I copied the automotive PCV system...I have the XB style head breathers going into the intake using a Kuryakyn breather plate, but also added a separate breather tube off the gearcase cover with an XR-750 baffle terminating with a small airfilter. |
Djkaplan
| | Posted on Tuesday, July 19, 2005 - 09:08 am: |
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"...also added a separate breather tube off the gearcase cover with an XR-750 baffle terminating with a small airfilter."
I'd sure like to see that. Get a camera! |
Bomber
| | Posted on Tuesday, July 19, 2005 - 09:37 am: |
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Aaron -- tell us boutthe bolts ya used to fasten that piece of jewelry to the heads, pleaseandthankyousir |
Aaomy
| | Posted on Tuesday, July 19, 2005 - 11:08 pm: |
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mackay, you should see my helmet, that was after one 42 mile ride, and i even dodged the swarms...
oldog, the girl all dolled up, i would clean her but it takes too long to get her dirty again.. maybe ill get a chance this weekend, i just got the rear brake line installed today.
rick a, hey man hows the head deal going. if you cant get it straightened out send them up. did you have them put external oil passages on you xb heads too? i thought you had them on your old ones. if you have all that going on you shouldnt really have any puke, but why did you run them back into the carb?? just curious, some time i have to re-read all the specs on your bike, it sounds sweet... and your still missing out on beautiful buggy weather!!!
bomber, not really sure what you want to know. the top bolt is a stock one. the two lower ones are "select" socket head cap screws. personally i think its just a way to charge a couple more bucks but it gives you that fake sense of security too..
a stock grade 8 bolt has to rate at around 160,000 psi
a stock grade 9 is usually around 180,000 psi
but you probably already know these # better that i do, and pleas forgive any mistakes, these are all coming off the top of my head. cant really check till tomorrow.
a socket head cap screw rates at 180,000 psi minimum
and a "select" grade, with "better material and lot charted tempering"(probably just snake oil),, 190,000 psi minimum
i was worried about the small surface area under the head of the socket head cap screw eating into the 6061 with time, thus weakening the mount and allowing vibration and eventually snapping the bolts. to resolve this i used heavy washers, designed to spread the load across a larger area of the aluminum, they are around 3/16" thick and are slightly concave so even pressure is applied when they are placed under load, the concave is only like .0005.
hope this helps |
Bomber
| | Posted on Wednesday, July 20, 2005 - 09:26 am: |
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Aaron -- grade is zactly what I wanted to know, and washers, too! -- I know that manufacturers put good-quality fasteners where they must, but also know the pressure to save pennies on unit costs spread out over the number of unit sold -- looks like you're appropriately addressed the seemingly problematic issue here -- good on ya!
I love learning how folks approach these things, I surely do! |
Blake
| | Posted on Wednesday, July 20, 2005 - 01:08 pm: |
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Cool stuff! Thanks for sharing and taking the time to post it all Aaron. |
Aaomy
| | Posted on Wednesday, July 20, 2005 - 07:49 pm: |
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bomber,, glad i was able to give ya what you wanted,
blake, thank its always good to know its appreciated.
think my next posting will be the air cleaner assembly |
Steve_mackay
| | Posted on Wednesday, July 20, 2005 - 08:53 pm: |
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Aaomy, you're far too ambitious. I've got all these fancy CNC machining centers at my disposal, and what have I made so far? Just a mount for my catch can.
I still gotta get me some fancy braided stainless for it 
But anyways... STOP with all this ambitious crap, you're makin' me look lazy in comparison |
Road_thing
| | Posted on Wednesday, July 20, 2005 - 09:20 pm: |
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Wow, nice work, Steve!
Think it's strong enough?
rt |
Steve_mackay
| | Posted on Wednesday, July 20, 2005 - 09:34 pm: |
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Yeah, I tend to over do things now and then. This is certainly over-engineered for a catch can mount |
Aaomy
| | Posted on Wednesday, July 20, 2005 - 10:43 pm: |
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man i love it,,, just one question,, where are the bug guts??????
dont worry i love to over engineer stuff to. unfortunately for me motorcycles are an addiction not an affection. i doubt that i will ever be able to stop..
anyone know any good 12 step programs!!!!!
help ,, i need help,,
heck the only reason i work where i do is because it lets me make my motorcycle parts,
PS. im very jealous, i wish i had "A" cnc machine to play with. dont think i would ever leave the shop, except to test out new parts!!!!!
i love it steve, cant wait to see what you produce next!!! |
Steve_mackay
| | Posted on Thursday, July 21, 2005 - 02:34 am: |
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My next project will be frame sliders. And then maybe shifter and rear brake lever. |
Bomber
| | Posted on Thursday, July 21, 2005 - 08:41 am: |
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Aaron -- CNC only complicates your life bud {smiley} -- all that programming and dealing w/viruses and keyboardin and stuff -- spin those nicely counterweighted handles to your heart's delite!
btw, you're addiction is common, you're in good company, and it's only a problem if you try to stop! |
Rick_a
| | Posted on Thursday, July 21, 2005 - 01:51 pm: |
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I'm gonna go talk to these guys my next day off. I got it straightened out myself with a big file then a flat plate. I've fit a lot of custom gun parts by hand so I was confident I could do it that way. At least there was one straight surface to go off. I got it to within .002". These guys had it so far off it could've been a spark plug gap. I need to test it with the rockers to see if things still clear. If not my wife welds (so far steel only) but she's got guys that can weld and machine it for nothin' here if it is needed. I do appreciate the offer. I ran the external oil lines on the XB heads only. I put the breather lines into the intake 'cause I'm basically building it to CCS Lightweight Superbike specs and the rules require it. Even if you run a catch can the rules say you need an overflow to the aircleaner which to me defeats the purpose anyway. This is just a cleaner solution, me thinks. The cost is maybe 1 or 2 HP. I can deal with that. |
Aaomy
| | Posted on Thursday, July 21, 2005 - 03:08 pm: |
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rick a,, a wife that welds,, lucky dawg,, sounds like a good woman to me!  unfortunately thats something i have no luck with. |
Rick_a
| | Posted on Tuesday, July 26, 2005 - 01:09 pm: |
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Ah, she is to be sure. She's hot, behind me completely, and has skills to boot. Now I just need a lathe, drill press and mill and we'll be in business!
BTW, that breather adapter is no good so far. It seems to be sucking in a lot of oil with these XB breathers. I'm hopin' that's the problem, anyway! |
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