Frank_Hassa
Member
My 1997 GSX's RAVE valve o-rings (Seadoo Part# 290 430 100) are hard and no longer fit snug along the shaft of the Guillotine Valve. Did some research online and somehow got the idea that part number 420 430 110 superceded the original part number, so I ordered 4 of them. When they arrived I compared the new o-rings to the old o-rings and the new ones were obviously different. Smaller outside diameter, larger inside diameter and smaller material thickness. Sent the eBay Vendor an email asking why they had a picture of OEM packaging in their listing but sent me 4 o-rings in "home made" ziploc bag, and he replied that he receives his OEM parts in quantities of 10 and has to break them down and repackage them for quantities less than that. So insisted that his part was authentic OEM.
Today I call local brick and mortar store and counterman there confirms that the "420" part number does in fact supercede the original "290" part number (note the last 6 digits of both part numbers are exactly the same), and also as an aside he said that in general all original Seadoo part numbers that start with "2" get changed to a "4" when they are superseded, so that's a bit of insight into how Seadoo does things for people, in case it's useful.
So now I have 4 o-rings that may or may not be OEM replacements, that may or may not work even though they are the right size. Everything I have read says that the o-ring needs to fit "snug" (this is the word everyone uses) along the shaft of the guillotine valve, and this certainly will NOT, so I don't want to use them.
Talked to a Service Manager at the same Seadoo Parts vendor and he said that what he's done in the past is simply go to an auto parts store and visually matched his old o-ring to one that they sold, and that he's never had any problems. But this opened the door to question if there is something special about the rubber of the OEM Seadoo o-ring, and if a substandard material might degrade, melt and destroy something as a result of using it.
Called brick and mortar local NAPA parts store, and got an idea, which I'll detail in my next post.
Today I call local brick and mortar store and counterman there confirms that the "420" part number does in fact supercede the original "290" part number (note the last 6 digits of both part numbers are exactly the same), and also as an aside he said that in general all original Seadoo part numbers that start with "2" get changed to a "4" when they are superseded, so that's a bit of insight into how Seadoo does things for people, in case it's useful.
So now I have 4 o-rings that may or may not be OEM replacements, that may or may not work even though they are the right size. Everything I have read says that the o-ring needs to fit "snug" (this is the word everyone uses) along the shaft of the guillotine valve, and this certainly will NOT, so I don't want to use them.
Talked to a Service Manager at the same Seadoo Parts vendor and he said that what he's done in the past is simply go to an auto parts store and visually matched his old o-ring to one that they sold, and that he's never had any problems. But this opened the door to question if there is something special about the rubber of the OEM Seadoo o-ring, and if a substandard material might degrade, melt and destroy something as a result of using it.
Called brick and mortar local NAPA parts store, and got an idea, which I'll detail in my next post.
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