-
Ok.....some of you I have called but I would like other input also. Last sunday at wide open throttle, 65-6600, the motor blows water from between the head and the block. There is NO water in the motor. It will not do it sitting still at that rpm. It will do it underway. Now it never did this before I went to the alum heads, bigger pistons, cam etc.... I also changed the gears from 12% to 19%. Obviously speed is the issue. Here is a diagram of how it is plumbed. This is also the smaller neovane pump.
http://www.v-drivevideo.com/mike/plumbing.JPG
Transom side.............................................. .....engine side
-
Sounds like a water passage in the head gasket not sealed adequately (I have the same problem)... leaking externally only. I think it's likely more of a gasket match, sealing issue than a plumbing issue. The small neovane shouldn't have the capacity to overpressurize from my experience.
-
Make sure you got the right gaskets for your application....I think Rexone's got the right info.. Leaky gasket..........:cool:
BTW.. Whats the oil look like??
-
Originally posted by Rexone
Sounds like a water passage in the head gasket not sealed adequately (I have the same problem)... leaking externally only. I think it's likely more of a gasket match, sealing issue than a plumbing issue. The small neovane shouldn't have the capacity to overpressurize from my experience.
Ok...buuut... Its not leaking in just one place. Its leaking at both heads almost all the way around. I don't think its the neovane overpressurizing but a combination of the pump and the speed of the water being forced in at speed.
-
Mike are you siliconing the intake to the block or using a gasket..
I'm finding it hard to be a speed problem..:D :D :D
-
Originally posted by Kindsvater Flat
http://www.v-drivevideo.com/mike/plumbing.JPG
Transom side.............................................. .....engine side
OK, did anyone notice the fine detail of this schematic?
NICE K Flat!!!!!!!1
-
Originally posted by Sangster
Mike are you siliconing the intake to the block or using a gasket..
I'm finding it hard to be a speed problem..:D :D :D
DUDE.......Mopar, no water in the intake:D
-
Indeed Mikey! very f**kin nice!:cool: :D
-
Originally posted by Jetboatguru
OK, did anyone notice the fine detail of this schematic?
NICE K Flat!!!!!!!1
Detailed just for you buddy!! Sometimes its just hard to explain farmer engineering.:D
-
Originally posted by Kindsvater Flat
Ok...buuut... Its not leaking in just one place. Its leaking at both heads almost all the way around. I don't think its the neovane overpressurizing but a combination of the pump and the speed of the water being forced in at speed.
You can easily answer this dilemma with a pressure gauge test.
My guess is it's a head gasket match or sealing problem. What kind of heads and head gaskets are you using?