Thread: OPAS Riva Block Offs Plugs
07-01-2007, 09:26 PM #1
OPAS Riva Block Offs Plugs
Anybody know where I can get the block-off fitting that goes on the pump of the RXT and the rubber vacuum cap that goes on the thru-hull fitting? (See pic below)
I installed the Riva OPAS block offs but am missing these two items. Went to Pep Boys and Auto Zone but could not find them.
07-01-2007, 09:29 PM #2
I'l do you one better and make you and aluminum plate to block off the hole after you remove the "t-valve" alltogether for $10 shipped. The way i look at it there's no sense in having something there that no longer serves a purpose.
07-01-2007, 09:31 PM #3
On the inside of the hull use a piece of hose to connect to both sides of the OPAS water lines fitting. I have not had a problem since.
07-01-2007, 09:32 PM #4
07-01-2007, 09:33 PM #5
Nice, Josh. $10 is a deal. Rafi: you messin' with that ski already- sweet.
You should be able to get that vacum cap anywhere- look in that "help" section in the auto parts stores.
07-01-2007, 09:39 PM #6
Tell ya what I did too- if you want... tapped those two plastic hose barbs in the stock opas fitting (inside the hull) 3/8 x 16 and inserted ss 3/8 cap screws in there with some silicone.
You are going to want that plate though- because later you can drill and tap through the center of it and use that for your separate IC cooling line .
07-01-2007, 09:54 PM #7
07-01-2007, 10:47 PM #8
- Join Date
- Aug 2005
- Jerry's guest bedroom
I got the plug at a boat store. I installed it and filled the hole inside the pump with JB Weld so it was smooth. For the tube they had a nylon bolt that I inserted and clamped off. That way if i ever need it again for anything it's easily reconnectable. One day I'm going to have a squirt hose and the pressure that is created here must be high to lift the OPAS fins.
07-02-2007, 02:29 AM #9
I used the hose from one side of the opas. Clamped it to the nipple inside the hull and bent it around and clamped it to the other nipple.
at first i used the hose from the pump nipple and plugged the nipple that u show in the pic, but if you dont pull down on the white nipple it still lets water shoot inside the hull
07-02-2007, 07:46 AM #10
i still have the cap that came with my riva thru hull if you want that, my RXP doesnt use it
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