Need orings

BruceSki

Formerly Motoman25
Location
Long Island
Anyone know where to source the oring for this pro Tec 650cc yamaha head?

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BruceSki

Formerly Motoman25
Location
Long Island
A 701 ADA ring fit the hole but it was not fat enough to fill the whole o ring gap. I'd be willing to try a set of 701 orings.

This head just uses two around the combustion area and some 1211 to seal the water jacket right?
 
A 701 ADA ring fit the hole but it was not fat enough to fill the whole o ring gap. I'd be willing to try a set of 701 orings.

This head just uses two around the combustion area and some 1211 to seal the water jacket right?
Yep 1211 to seal water jacket, I used black silicone permatex which works good. The earlier model Pro - tec heads had the thin o-rings then they went to the thick o-rings that looks like the one yours needs.
 
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BruceSki

Formerly Motoman25
Location
Long Island
Looks like protec has them on their website. Both small and large diameter.

Tried to order a set but minimum order is $25.

I'm not ordering 5 sets. Lol.

Sent an email. Maybe they will send me one set if I order over the phone tomorrow.
 
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Location
BC
Go to pretty much any Hydraulic shop and ask for 90 Durometer Viton O rings. 70 Durometer will work to but they need to be Viton (high heat). If they know what they are doing they should be able to measure the groove and tell you what size you need.
 

Quinc

Buy a Superjet
Location
California
McMaster carr has them for around 1$ each.

Protec Cast Rec Head O-rings:
-Style 1*, viton, -043, pack of 10, viton: 5267T57
-Style 2*, viton, -153, pack of 2, viton: 9464K114
 
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