Factory pipe type 4 and riva freeride O-ring sizes

[1550]

I bought mine Riva freeride pipe in parts without couplers and o-rings. and as i live in Finland i cannot get those o-rings from local jetski parts shop. So if someone knows what is size of those o-rings and can tell me about those. I assembled mine pipe without those o-rings and after i read instructions today i dont know that there had to be o-rings. If someone doesnt want to reply in this thread you can also send pm to me.


Thanks for help!

 

[superjetkev]

i have never used the o rings, i just fill the groove right full of permatex ultra copper. works everytime and i have bever had a problem with burning couplers in the 3 years ive had my pipe.

 

[Crab]

Go to a hydrolic supply shop, they have all the orings you need, have them measure for correct size.

 

[YAMA CAT]

#337 Buna N O-ring I bought mine from McMaster-Carr # 337
Here is the Bill of Material for the Riva Dry Pipe or Type 4

 

[1550]

Thanks Yama cat, now i can go shopping... I doesnt know about those us standards so i just think that 337 is some number that factorypipe uses.

 

[YAMA CAT]

This should give the specs you need to get the metric equivalent.

 

[Crab]

Get Viton if you can find it, it handles the heat better.