Rubber O ring on exhaust pipe

Joined
Nov 21, 1999
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#1
Dealer wants 11.00 for this O ring. Is it made out of special compounds for the heat from exhaust? Mechanic friend said to put in standard O ring from the hardware store. Haven't rode the bike yet, am I going to get a strong odor of rubber burning? thank for any Opion's
 

Vic

***** freak.
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May 5, 2000
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#2
I asked Eric about this in a phone call a few years ago. He said that it would probably be okay to use a hardware store o-ring, so I tried it. It worked fine. It probably won't last as long as the pricey ones, but who cares. I didn't notice any smell of burning rubber.
 
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#3
I have am O-ring set that I pick from with good results. I have tried all the O-ring materials available to me at work (aircraft mechanic). I have not found any that last much longer or any that fail sooner. I even tried the high temp silicone O-rings used on bleed air ducting. The silicone did not leak, however it became very very soft and oil laden. It was not reuseable. For 11 bucks you can purchase a set of larger O-rings. I have had some luck coating the O-ring with hondabond HT silicone sealant.

Chris
 
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Mar 15, 2001
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#4
one of the benefits of water cooled engines is the reduced operating temp, particularly on the exhaust side. Otherwise, there are many types of o-rings, each with different properties.

If I remember correctly viton and teflon are the most heat resistant types (but like cujet said, it probably doesn't matter)
 

Jaybird

Apprentice Goon
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#5
My .02
It's probably a wash money wise. Other than spec. rings will degrade faster but are cheaper.
A person who pays close attention to detail can do fine with OTC items.
 

bigred455

"LET'S JUST RIDE"
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Sep 12, 2000
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#6
Go to pep boys they come in sets of 2 (4 o rings)for 2.50 i matched them up to my kx o rings, the pep boys are a little thicker,i just us a little grease to slip them in the cylinder.The seal is excellent BETTER THAN OEM, i get no drool coming out of the cylinder what so ever and they last just as good if not longer than oem.Here is the size i get for my kx 250 width 1/8 ID 2" OD 2-1/4. I have taking my pipe off plenty of times reusing the same o rings without a problem.
 
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#7
I got so tired of fighting spooge, that now I always put a bit of silicone on the pipe. I have never had a leak this way, even if the o-ring is less than 100%.
 
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Nov 21, 1999
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#8
This forum is great!!! Thanks for for all the advice guy's. The O rings I bought at the hardware store were .75 each. Greased the O ring & pipe & put the pipe on. The silicone sounds like a very good idea. I would like to know how these mfg. & dealers can charge these kinds of prices. The dealers wonder why you mail order & get parts from other places. When will they learn?
 
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#9
I know a dealer that sends me down to the hardware store or kmart even if he has the inflated item on the shelf. I really respect that.
 
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#10
O-rings

You can also find a large selection of orings in many materials at places like Grainge, MSC, etc. I have found that the nitile orings seem to get hard and tend to break trying to reuse them. The Viton work pretty good, but i found some teflon coated orings that seem to hold up really well.
All are much cheaper than the OEM orings.
Scott
 
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Sep 1, 1999
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#12
I have been using hardware store o-rings for some time. They work fine. I allways keep several around, as they get brittle after about 6 months. I get mine at Lowes. Just bring your pipe in and see what fits the best. No nead for sillycone, they seal great without any spooge.
 

DEA

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Jul 11, 2001
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#13
wrap a few turns of teflon tape around the o'rings on the pipe this seals well to