03-03-2011, 10:12 AM #1
Anyone know Riva Openloop washer size?
Guys I need to know what the inside diameter is on the riva openloop inlet washer in the pump. In there actual kit.
03-03-2011, 11:05 AM #2
It's in that other thread you started bro im on my phone or I would list it. You need to drill it to 13.5mm though
03-03-2011, 11:15 AM #3
03-03-2011, 11:21 AM #4
I just reread all my post and foundyou drilled out theRiva washer to 13.5....
What was it when it came from Riva? 9mm?
I am asking, because I have one fitting on my conversion I can drill out to around 9mm. And if this is the Riva kit size I am gonna do this and test.
If I go larger I need to find a different thru hull?
03-03-2011, 11:33 AM #5
Bro I just measured 13.5mm and that is BIG compared to the 9mm? If the Kit is actually 9mm.
03-03-2011, 12:51 PM #6
Do you have two water feed lines on the conversion? I had a engine water temp alarm go off with the RIVA washer on my OL. I put a different washer in that measured 14.8mm. I don't know if its to much water, but I never have had the alarm again.
03-03-2011, 12:52 PM #7
03-03-2011, 01:04 PM #8
03-03-2011, 01:05 PM #9
I guess I am gonna have to tap the pump and use both lines as I can not drill out 13 or 14mm in the transum fitting. Only around 8.33.
I can however re tap and die a new barbed fitting in the trasum that is more to the inside diameter fitting?
03-03-2011, 01:20 PM #10
Here is the info from ironhead and vspec1 on what to drill your restrictor washer to bro.
my runs at 160 at 1800 and at8550 210 had open up washer to 13.5mm now temp wot are 160 at 1800 and 170 at 8550 oil 210
Enlarged for better cooling: 13.5mm
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