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TrapperJ
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« on: August 13, 2009, 08:22:32 AM » |
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On an old post it was recommended to put a snubber in the vacuum line to the petcock. What is a "snubber"?
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sandy
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« Reply #1 on: August 13, 2009, 09:38:45 AM » |
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The vacuum from just one cylinder is a pulse vacuum. It pulls and stops with each intake/comp/combustion/exhaust stroke. A snubber is a small orifice device to make the vacuum a more constant pull all the time.
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Madmike
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« Reply #2 on: August 13, 2009, 09:42:50 AM » |
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also called a pulsation dampener ............
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Farther
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« Reply #3 on: August 13, 2009, 09:53:07 AM » |
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Where can a person get one of these things?
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Thanks,
~Farther
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TwoDogs
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Posts: 51
1999 Interstate
Waco, TX
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« Reply #4 on: August 13, 2009, 11:10:13 AM » |
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One of the posts in the archives has a link to Mcmaster-Carr with part numbers. I'll sell you mine for $15 + shipping. I went electric and disabled the vacuum part of the petcock instead. Never installed the snubber. Email if you're interested.
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If God dwells inside us like some people say, I sure hope He likes enchiladas, because that's what He's getting. - Jack Handey
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Daniel Meyer
Member
Posts: 5493
Author. Adventurer. Electrician.
The State of confusion.
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« Reply #5 on: August 13, 2009, 11:27:39 AM » |
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There is one built into the cover...which is why they give you a new one in the rebuild kit.
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CUAgain, Daniel Meyer  |
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TrapperJ
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« Reply #6 on: August 13, 2009, 11:51:44 AM » |
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I went to my honda dealer and they no longer sell petcock rebuilding kits.
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rmrc51
Member
Posts: 1087
Freyja. Queen of the Valkyries
Palmyra, Virginia
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« Reply #7 on: August 13, 2009, 11:55:38 AM » |
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I went to my honda dealer and they no longer sell petcock rebuilding kits.
Get a Pingel. You won't be sorry. IMHO. |
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VRCC # 30041
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Daniel Meyer
Member
Posts: 5493
Author. Adventurer. Electrician.
The State of confusion.
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« Reply #8 on: August 13, 2009, 12:05:07 PM » |
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I went to my honda dealer and they no longer sell petcock rebuilding kits.
Your dealer is not correct. COVER SET,rooster 16953-MBZ-B51 (replaces 16953-MV9-000) $27.22 |
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CUAgain, Daniel Meyer |
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98valk
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« Reply #9 on: August 13, 2009, 12:52:14 PM » |
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Where can a person get one of these things?
Quote from: John U. on May 05, 2009, 10:09:04 AM Many thanks CA ExhaustCoatings for the info and source. This is the first new (to me) idea I have heard that might help mitigate petcock troubles, and their terrible consequences. Do you think there is any need for the stainless snubber? I guess I can find the hose barbs to hook it up locally. So where in South Jersey are you? I'm in Lower Delaware. Let me know if you're heading my way. John Brass is fine, that is what I used. Install it with the disc towards the intake manifold. I installed it 3-4" from the manifold connection just under the carbs. I secured it to the carb support bracket. http://www.chemiquipproducts.com/ download the catolog. Finding a female 1/8" hose barb is the hard part to find. mc'master has both. http://www.mcmaster.com/#44555k123/=1qq4na $2.51 http://www.mcmaster.com/#44555k128/=1qq4y9 $8.69 snubber .5 micron disc http://www.mcmaster.com/#4034k11/=1qq5ag $1.00 |
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
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98valk
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« Reply #10 on: October 26, 2009, 05:28:19 PM » |
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There is one built into the cover...which is why they give you a new one in the rebuild kit.
I tested it, it is a very poor one if that is what it is. It acted more like a check valve that bleeds down. if anything it doesn't work well for extreme on/off vacuum conditions during on/off throttle. |
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
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5_19
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« Reply #11 on: October 26, 2009, 05:48:27 PM » |
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The petcock is fully open at 2"HG vacuum when I checked it's opperation. Your vacuum level is above 6" or higher almost all the time, doesn't this means that the diaphram is all the way open and the pulsing has no effect at all? ???
TJ
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 Most motorcycle problems are caused by the nut that connects the handlebars to the saddle. IBA # 45723 2001 Honda Valkyrie Standard (Sold after 9 years) 2009 BMW R1200 GSA |
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #12 on: October 28, 2009, 03:57:00 AM » |
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Another way to dampen the pulse's would be to connect several intake lines together..
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Chrisj CMA
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« Reply #13 on: October 28, 2009, 09:37:43 PM » |
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Your dealer is not correct.
COVER SET,rooster
16953-MBZ-B51 (replaces 16953-MV9-000) $27.22
[/quote]
My local stealer knows absolutely nothing about Valkyries......its like a Valkyrie isint even a Honda to them. I never trust their opinion or answer.......they usually ask me about stuff, and when I buy a part there they almost just give me the computer so I can find what I want.......very sad
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BOZ
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« Reply #14 on: October 30, 2009, 05:44:39 AM » |
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Prior Quote: "Brass is fine, that is what I used. Install it with the disc towards the intake manifold. I installed it 3-4" from the manifold connection just under the carbs. I secured it to the carb support bracket."I'm not sure what you mean when you say " Install it with the disc towards the intake manifold." I got the items you recommended (as I've had a couple of stock petcock diaphrams go bad) and I'm not sure I see exactly see what you mean by the "disc" when looking at the snubber. Is the "disc" the flat end of the snubber? Would appreciate any additional clarification.  |
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98valk
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« Reply #15 on: October 30, 2009, 07:47:10 AM » |
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Prior Quote: "Brass is fine, that is what I used. Install it with the disc towards the intake manifold. I installed it 3-4" from the manifold connection just under the carbs. I secured it to the carb support bracket."I'm not sure what you mean when you say " Install it with the disc towards the intake manifold." I got the items you recommended (as I've had a couple of stock petcock diaphrams go bad) and I'm not sure I see exactly see what you mean by the "disc" when looking at the snubber. Is the "disc" the flat end of the snubber? Would appreciate any additional clarification. the one end should have a disc, I guess u could call it the flat end, the other end u should be able to look down into it. check out the manufactuter link I provided also for clarification. I hope that helps u. |
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
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Puffs Daddy
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« Reply #16 on: October 30, 2009, 11:35:44 AM » |
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I went to my honda dealer and they no longer sell petcock rebuilding kits.
Your dealer is not correct. COVER SET,rooster 16953-MBZ-B51 (replaces 16953-MV9-000) $27.22 Thanks. I was under the impression that was a part number for a condom. |
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