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SpidyJ
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« on: February 09, 2014, 03:15:12 PM » |
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Wonderin......don't see any posts specific to the vent. thx any help jpw  |
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1999 Fast Black Interstate
Peace,
johnnywebb
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old2soon
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« Reply #1 on: February 09, 2014, 03:26:36 PM » |
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Our fuel from the stock tank is gravity feed so NO don't plug the vent. RIDE SAFE.
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Today is the tommorow you worried about yesterday. If at first you don't succeed screw it-save it for nite check. 1964 1968 U S Navy. Two cruises off Nam.
VRCCDS0240 2012 GL1800 Gold Wing Motor Trike conversion
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #3 on: February 09, 2014, 03:48:09 PM » |
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I'm wondering if we have a terminology problem. What do you mean by vent ? If you mean the gas tank vent at the bottom rear of the tank then no it is not to be plugged as it still needs to remain open and clear. So, when replacing the tank make sure the line doesn't get kinked [ common problem].
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SpidyJ
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« Reply #4 on: February 09, 2014, 04:15:48 PM » |
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The vent on the petcock itself, not the vacuum line....the vent hole.
I removed the plastic disc and the little piston but left spring and both diaphragms full size. Filled the vacuum port with a small selfltapper and some loctite.
Seems to work fine dry, just don't want a fuel leak once I install it on the tank out of the vent hole.
Thx
jpw
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« Last Edit: February 09, 2014, 04:23:37 PM by SpidyJ »
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1999 Fast Black Interstate
Peace,
johnnywebb
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Bone
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« Reply #5 on: February 09, 2014, 04:20:13 PM » |
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From the link I posted;
In this picture you can also see a that a small section of the old vacuum hose has been used to connect both the old vacuum port and the vent port. This is necessary because the diaphragms no longer isolate the fuel. You can also use JB Weld to seal the holes.
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SpidyJ
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« Reply #6 on: February 09, 2014, 04:24:48 PM » |
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So the answer is yes.......seal both the vacuum port and the vent hole.
Thanks!
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1999 Fast Black Interstate
Peace,
johnnywebb
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Bone
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« Reply #7 on: February 09, 2014, 04:33:43 PM » |
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Yes they used the hose attached to both and said "or you can seal them shut with JB Weld".
I've logged over 100k miles with the setup.
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #8 on: February 09, 2014, 05:11:38 PM » |
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I guess I had the terminology issue. I thought you were changing/replaccing the petcock.
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Wewaman
Member
Posts: 423
Dead Lakes Cruiser
Wewa, Fla.
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« Reply #9 on: February 09, 2014, 08:10:56 PM » |
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Patrick as far as the hose off the bottom rear of tank, is it a vent hose? that hose has a clamp on the far end. is that supposed to just hang free if so then why the clamp ? And as far as the petcock it has 3 ports-- 1 fuel - 1 hose that goes to #6 intake runner, and a little short port . Please enlighten me as to what these should look like.
Thanks Tony
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If you please God it doesn't matter who you displease but if you displease God it doesn't matter who you please  |
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #10 on: February 10, 2014, 04:05:52 AM » |
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The line from the rear of the fuel tank is a vent which needs to be clear/free. There should not be a 'clamp' on that line, but, there should be an open ' T ' slightly above the end of that line. That ' T ' is a vacuum break and one 'nipple' has nothing attached, suppose to be that way. Its quite common to kink this line when reinstalling the fuel tank, and, if it happens you'll know it soon enough as the engine will quit running or start stumbling from fuel starvation.
Another line also near the bottom of the swing arm is a drain line that should have an end plug with a 'clamp'. That line goes to the breather box and should be drained every now and again. What comes from that line is affectionately referred to as 'dragon drool'.
I can't speak to the original petcock without looking at one. Its been so long since I've had any doings with one that I don't trust my memory about its workings. I don't want to give any bad or wrong info.
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Wewaman
Member
Posts: 423
Dead Lakes Cruiser
Wewa, Fla.
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« Reply #11 on: February 10, 2014, 05:41:43 AM » |
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thanks Patrick  I will look into this when I get home this evening. Tony |
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If you please God it doesn't matter who you displease but if you displease God it doesn't matter who you please |
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Gryphon Rider
Member
Posts: 5227
2000 Tourer
Calgary, Alberta
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« Reply #12 on: February 10, 2014, 08:12:13 AM » |
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If you made it manual by cutting out the centres of the diaphragms, then, yes, you need to plug the little vent hole on the bottom of the valve. If you did it by leaving the small diaphragm intact and merely put the spring on the other side of it to hold it open, then there is no need to plug that vent as it is separated from fuel by the small diaphragm.
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Ricky-D
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« Reply #13 on: February 10, 2014, 09:17:03 AM » |
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Probably one of the smartest investments you can make is a new aftermarket gas petcock.
Modifying an oem petcock is Ok, but they are inherently a poor performer as an "off"/"on" petcock
due the fact there is no positive feedback from the stocker that the gas is actually shut off.
And turning it to "off" and riding to see and observe a "stutter" is not an indication it is
completely "shut off". It doesn't take but a drop or two per minute of gasoline
to do it's damage. Naturally other conditions apply.
***
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2000_Valkyrie_Interstate
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SpidyJ
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« Reply #14 on: February 12, 2014, 09:22:44 AM » |
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You do know that now instead of two valves shuting gas off you now have only one,if it was leaking you would have saw gas driping out of that vent you were talking about. Good luck
I haven't installed the manual one yet, I'm converting a spare I bought. Also, I do have a Dan Marc in-line. |
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1999 Fast Black Interstate
Peace,
johnnywebb
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