Rubber O ring on exhaust pipe

[Jim Cunningham]

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]

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.

 

[cujet]

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

 

[motopuffs]

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]

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]

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.

 

[motopuffs]

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%.

 

[Jim Cunningham]

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?

 

[motopuffs]

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.

 

[scotts250]

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

 

[scotts250]

OOpps

that should be Grainger!

 

[reynome]

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]

wrap a few turns of teflon tape around the o'rings on the pipe this seals well to

 

[vince]

you must have a KTM (I do).