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Stonecutter in SF
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« on: August 26, 2013, 11:37:02 AM » |
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Hey all! Got back from my road trip and noticed a few things - most concerning of which is best explained by the following pics:   It was definitely fresh. I found this after about 120 mile pit stop. Is this normal or does it require attention?  Thanks! |
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1999 Honda Valkyrie Standard
2009 Piaggio MP3 250ie
Tomos ST
1996 Suzuki Savage (RIP)
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Gryphon Rider
Member
Posts: 5232
2000 Tourer
Calgary, Alberta
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« Reply #1 on: August 26, 2013, 11:50:52 AM » |
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Your Valk has succumbed to the dreaded intake o-ring failure. If left untreated, you'll get more brown stuff deposited on the cylinder head, but, fortunately, no symptoms that could lead to catastrophic failure. The brown stuff is gasoline goop, not oil.
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John Schmidt
Member
Posts: 15278
a/k/a Stuffy. '99 I/S Valk Roadsmith Trike
De Pere, WI (Green Bay)
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« Reply #2 on: August 26, 2013, 12:00:13 PM » |
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Yup, Gryphon is right, just get yourself some new o-rings from Red Eye and replace them. Just loosen the small bolts holding those chrome intake risers down, loosen the hose clamp at their top. With a little pull outward the riser should pull out of the rubber neck, allowing you to remove/install the o-rings. I loosen up all three on each side, gives a bit more flexibility. Not a hard job at all. When bolting them down, don't torque them, just nice and snug. http://redeye.ecrater.com/c/414983/carb-intake-seal-kits |
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Stonecutter in SF
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« Reply #3 on: August 26, 2013, 12:03:33 PM » |
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That's a relief! thanks for the advice.
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1999 Honda Valkyrie Standard
2009 Piaggio MP3 250ie
Tomos ST
1996 Suzuki Savage (RIP)
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Willow
Administrator
Member
Posts: 16710
Excessive comfort breeds weakness. PttP
Olathe, KS
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« Reply #4 on: August 26, 2013, 04:13:16 PM » |
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Although it is a good idea to replace the O-rings, there is a possibility that simply tightening the screws to their proper tightness could eliminate the leakage.
You're also seeing the evidence of what should give you a vacuum leak resulting in a slightly incorrect fuel mixture.
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Chrisj CMA
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« Reply #5 on: August 27, 2013, 04:41:19 AM » |
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Although it is a good idea to replace the O-rings, there is a possibility that simply tightening the screws to their proper tightness could eliminate the leakage.
You're also seeing the evidence of what should give you a vacuum leak resulting in a slightly incorrect fuel mixture.
Be careful....the emphasis as Carl said is "PROPER TIGHTNESS". I have changed many of these O-rings and none of the mounting bolts were loose. If you tighten one that is already tight you could strip the threads, or break the bolt. I would get new O-rings and just change it, you will see how flat that old one is |
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Ricky-D
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« Reply #6 on: August 27, 2013, 07:42:51 AM » |
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Lotsa good advice here!
Here's mine:
Only mess with the intake runner where you see the residue. Don't screw with the others.
Why? The other are fine and need nothing.
All you have to do is break off the bolt, or strip the threads in the cylinder head and you'll be kicking your ass for messing with them.
***
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2000_Valkyrie_Interstate
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The emperor has no clothes
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« Reply #7 on: August 27, 2013, 09:39:15 AM » |
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Lotsa good advice here!
Here's mine:
Only mess with the intake runner where you see the residue. Don't screw with the others.
Why? The other are fine and need nothing.
All you have to do is break off the bolt, or strip the threads in the cylinder head and you'll be kicking your ass for messing with them.
***
Really? You would let them continue to leak. I didn`t think it was that bad of a job. Just a little care is all it takes. |
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Regis
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« Reply #8 on: August 27, 2013, 10:11:40 AM » |
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If you have a stuck bolt it may be better to loosen it with the engine hot instead of breaking it with too much enthusiasm when cold . Sometimes a little heat goes a long way .
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Farther
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« Reply #9 on: August 27, 2013, 10:14:13 AM » |
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Good point and use anti-seize when re-assembling.
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Thanks,
~Farther
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PhredValk
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« Reply #10 on: August 27, 2013, 09:17:36 PM » |
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Ricky didn't say let it leak, he said just fix the one that is leaking. Why chance breaking a bolt on something that isn't a problem?
Fred.
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Growing old is mandatory, growing up is optional.
VRCCDS0237
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