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Jmartz
Posted on Wednesday, February 27, 2002 - 02:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ara:

I just thought that since my bike is so clean now that I have a catch can, why not use it for the the trans breather too. I don't get the volumetric efficiency argument especially in the case of the trans which is just a vapor vent. In any case I won't attach the trans hose to the catch can. Not much comes out of there except
when the sprockeshaft seal fails.

Jose
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Tavs
Posted on Wednesday, February 27, 2002 - 06:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Jmartz: I run the trans vent to a tee on one of the breather lines; The difference is I use an automotive style PCV valve to keep any gook coming from the engine from going into the trans. So far seems to work, other than the posts I had about puffs of smoke coming from my breather, which appears to be normal.
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Blake
Posted on Thursday, February 28, 2002 - 01:49 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Tavs: You need to remove the PCV valve from your transmission breather line. It is critical that your transmission/primary be able to breath IN as well as out. With the PCV valve on the tranny breather, your primary will pull a strong vacuum after a hot ride. That vacuum can ruin the seal at the crank allowing communication between crankcase and primary (engine oil leaking into your primary/tranny).
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Tavs
Posted on Thursday, February 28, 2002 - 11:34 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Whoops! Thanks for the info.
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Lsr_Bbs
Posted on Sunday, March 03, 2002 - 02:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

For those that might be thinking about using the blast/xb rocker boxes on a X1; a couple things from my conversion:

- The front only needs *very* slight filing to clear the front engine mount (I did both the rockerbox and mount just to minimize material loss from any one part)...see pictures below.

image_1

image_2

image_3

- the rear needs *NO* modifications to clear anything, bolts right up!

- Be careful when drilling the new hole for the rear one..I wasn't and am having to do it over again.

- There is very little room between the PCV valve and the bottom of the tank...I'm looking around for a slimer PCV valve. The front is no issue.

- All in all, it's a easy bolt-on and can't wait to get it all done...will clean up things nicely.

Neil Garretson
X0.5
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Jocklandjohn
Posted on Wednesday, March 06, 2002 - 01:57 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Trying this here as well as the main board....I am looking for a Jaz catchcan for my M2, can anyone suggest a reliable dealer stocking them who will take an overseas credit card order and is willing to deliver overseas? Or anyone know if Jaz have a European dealer - their website doesn't list "international" dealers in the UK. Dont see them in ASB or SportTwin. Or any other suggestions?
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Scot
Posted on Friday, March 08, 2002 - 04:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Semi, I tryed the plastic mesh dish washing scrubber in the output side of the ASB catchcan. So far I have had zero mess/mist out of the filter. Scot
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Sem1
Posted on Saturday, March 09, 2002 - 12:55 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Scot: Thanks, that is good news! So, you did not shorten the output pipe at all?

I think I will copy your idea once I get my hands on my Buell again -- just shipped it to Finland today, and will shortly follow myself.

Cheers,
Semi
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Scot
Posted on Saturday, March 09, 2002 - 02:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sem1, no I didnt do anything with the output pipe. I wasn't aware that this would have any effect. What is the purpose of shortening it?
I only have about 50 miles on it since I added the mesh so the jury is still out. I blew all the oil out of the filter so I'm wondering wether the problem will reappear after the filter has oil in it again.

Scot
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Sem1
Posted on Saturday, March 09, 2002 - 09:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Scot, maybe I got confused; I was referring to the pipe that reaches close to the bottom of the catch can that we talked about earlier. I forget whether it is the input or output pipe, but I guess you did not shorten it.

Please keep us updated on how your modification works!

Cheers,
Semi
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Johnnybravo
Posted on Friday, March 15, 2002 - 03:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

i just had my heads ported polished and larger valves instaled. i also driled the drain hole to 1/8" but i am still puking my guts out. i have to drain my catch can after every 100 or so miles and it is not a small amount either it is a good 2 to 3 onces
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Blake
Posted on Friday, March 15, 2002 - 05:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

How "full" do you maintain your engine oil?
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Bluzm2
Posted on Friday, March 15, 2002 - 05:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Also,
Did you do the relief for the umbrella valve?
You know, chamfer the umbrella side of the hole.

It helped my M2, not perfect but helped quite a bit.

Brad
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Johnnybravo
Posted on Friday, March 15, 2002 - 06:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

2 qt of oil and chamfer the hole where the umbrella valve goes into or the drain hole?
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Ara
Posted on Friday, March 15, 2002 - 07:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Johnny, please confirm that. You use 2 quarts of oil, total?
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Johnnybravo
Posted on Friday, March 15, 2002 - 11:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

well without cracking the cases and breaking out the beakers i always put 2 quarts in when i change the oil and if it is low from blow out i'm sure it is now less
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Bluzm2
Posted on Friday, March 15, 2002 - 11:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Johnny,
You need to chamfer the umbrella valve hole.
Check out this link to the KV archives. Pic's and and everything!

Knowledge Vault Archive
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Johnnybravo
Posted on Friday, March 15, 2002 - 11:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

every one is saying that and it is not answering my qustion, is that the drain hole or the hole the valve goes in, thanks for the link but i did all that allready.
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Ara
Posted on Saturday, March 16, 2002 - 08:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have an S3 that doesn't puke much, but I've modified my breather system anyway. I'm no expert, but the amount of puke Johnny has described seems much more than can be rectified by simply chamfering this or that hole. The quantity he's talking about, several ounces after just 100 miles, leads me to wonder whether there's actually something WRONG. I don't have the answer to that, but Blake, Jose, and several others who have also studied the breather system extensively might have some ideas. I think it might be fruitful to pursue that angle.
Russ
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Johnnybravo
Posted on Saturday, March 16, 2002 - 08:52 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

almost forgot the color of the puke is like a light brow almost like coffe w/alot of cream it also smells a little like thinner or gas
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Bluzm2
Posted on Saturday, March 16, 2002 - 10:47 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Johnny, it's the umbrella valve hole.
Look closely at the lower picture in the above link.
The oil drin back hole is on the left, the umbrella valve hole on the right.
If you look closely you should be able to see the hole in the middle on the right has a chamfer. You can see the chatter marks from the drill bit. Yeah, I should have use the drill press instead of the hand held but I was in a hurry. The chatter marks won't matter, you are just trying to make room for the thicker part of the base of the stem of the valve.

Hope this helps.

Brad
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Rempss
Posted on Saturday, March 16, 2002 - 11:44 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have found when redrilling existing holes, a hand drill works a little better. It will "self-center" in the hole, on a press table you need to move the item in line with the drill. Especially on that chamfered unbrella valve hole.

Jeff
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Blake
Posted on Saturday, March 16, 2002 - 12:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I agree with Ara. Sounds like something is amiss. Fuel smell in your oil? NOT good. Important that you immediatlly change your oil/filter. Ensure that your fuel petcock is turned off when bike not running and that it does not leak.
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Ara
Posted on Saturday, March 16, 2002 - 01:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Blake has a possible diagnosis. I had one instance where I left the petcock on, the carb slide stuck open, and fuel leaked into a cylinder via an open intake valve. Keep your petcock off, and make sure it's OFF rather than on reserve. My manual is quite vague on which is which.
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Court
Posted on Saturday, March 16, 2002 - 02:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Petcock?....I have a dog and that's enough to keep me occupied.

Seriously, the Buell petcock has, since long ago, been a source of confusion.

Here we go, in Court-ese:

PADDLE pointed toward (closest to) the ground = OFF

PADDLE pointed toward front wheel = RESERVE

PADDLE pointed toward rider = ON


Hint: Sit on your bike, on a stand and LEARN over and over again to "feel your knee and go 2 inches right" and put your hand on the petcock WITHOUT LOOKING. Having defueledbuells in many an interesting spot in many intesting attitudes, I consider this ESSENTIAL.

Same drill I do with a new airplane. READ, READ, READ and then sit in the cockpit and learn to lay my hands on and operate EVERY switch, circuit breaker and control with my eyes closed.

This concludes this portion of your Mother Hen lesson.....

Court
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Sem1
Posted on Saturday, March 16, 2002 - 02:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Blake, Ara: Is there any way for fuel to get to the oil other than through open/leaking petcock and stuck carb parts? I am asking because I have changed the oil, have been meticulous about using the petcock exactly the way Court outlined above, and I am still getting puke that smells like fuel.

Cheers,
Semi
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Ara
Posted on Saturday, March 16, 2002 - 03:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Court: Excellent turorial, thanks!
Sem1 and Johnny: As far as I know, the only way for fuel to mix with motor oil is via 1) an open or leaking petcock, 2) a stuck open carb slide, 3) and a open intake valve. That this is even possible is due entirely to a Buell manufacturing shortcut. Calif regulations preclude a carb bowl overflow tower, but the other 49 states permit them. To simplify manufacturing and distribution, Buell made the Calif overflowless carb bowl the standard. I've said this before, the one of the smartest mods you can do is to get a 49 state Sporty float bowl and instal it on your Buell.
Now then, I think it would be well to test whether there is actually fuel in your breather puke by trying to ignite it. Carefully. I wonder whether the human nose can really distinguish between one kind of petrochemical and another, particularly when a mixture of petrochemicals is suspected.
Russ
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Court
Posted on Saturday, March 16, 2002 - 03:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Petcock?....I have a dog and that's enough to keep me occupied.

Seriously, the Buell petcock has, since long ago, been a source of confusion.

Here we go, in Court-ese:

PADDLE pointed toward (closest to) the ground = OFF

PADDLE pointed toward front wheel = RESERVE

PADDLE pointed toward rider = ON


Hint: Sit on your bike, on a stand and LEARN over and over again to "feel your knee and go 2 inches right" and put your hand on the petcock WITHOUT LOOKING. Having defueledbuells in many an interesting spot in many intesting attitudes, I consider this ESSENTIAL.

Same drill I do with a new airplane. READ, READ, READ and then sit in the cockpit and learn to lay my hands on and operate EVERY switch, circuit breaker and control with my eyes closed.

This concludes this portion of your Mother Hen lesson.....

Court
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Sem1
Posted on Saturday, March 16, 2002 - 03:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ara: Thanks! When I get to my Buell again (it is currently crossing the Atlantic) I will approach the stuff that comes out of the catch can with a lit lighter and see what happens.

Two more questions:

First, does the Mikuni HSR42 have functioning float bowl overflow? I was thinking of buying the Sportster float bowl per your suggestion, Ara, but ended up buying a Mikuni instead. It is still waiting to be installed.

Second, I will reiterate a question from my earlier post: Is it possible for piston ring blow-by to cause the symptoms that Johnny and I are seeing?

Thanks!

Cheers,
Semi
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Ara
Posted on Saturday, March 16, 2002 - 06:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Well I was thinking that blow-by is combustion gas that gets past the rings. That being the case and even if it has a little bit of moisture in it, I don't think it explains all of the liquid you guys are getting out of your breathers - particularly if that liquid is combustible. I really think Blake might have hit it on the head with his leaking fuel theory. I can't answer your question about the Mikuni.
Russ
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