Bravo Drives moving upon acceleration
#1
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Joined: Sep 2009
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From: Waterloo,IL
I have Twin procharged 454's around 520HP a piece in a 1998 31' IMP Viper. My problem is upon hard throttle the bravo drives push in nosing the boat in the water. It never happens upon take off just when I hammer down during cruise. Are the hydraulic rams on the drive not strong enough for the power I have? Any input would be great, Thanks
#2
There is a high pressure and low pressure port on the trim pump. If you had the lines off lately, maybe you switched the "raise" line to the low pressure port.
If you have not been working on it, it most likely is a blown seal on one of the rams allowing the piston to move under load.
If you have not been working on it, it most likely is a blown seal on one of the rams allowing the piston to move under load.





