jerky tilt

Guyz.....This has been a year long problem thats getting old. 1998ym 225 rude...
Trim works great up and down http://www.bassboatcentral.com/boardstuff2/beers.gif ...but when going DOWN from full tilt the poor girl jerks to beat the band http://www.bassboatcentral.com/smileys/crying.gif If I support the lower unit its fine or if I shift to reverse and give her a little gas she will be smooth, but with the full weight on the tilt ram it jerks going down, Once it hits the trim rams she is fine...Fluid is full and system has been bleed , greased tilt tube and sprayed all moving parts with lube , also loosened end nuts on the tilt tube http://www.bassboatcentral.com/smileys/sick.gif ..It seems to be a check valve sticking in the tilt circut....If so, now what, I dont think there is a rebuild kit for the innards.....Could the system be flushed, on the bench, with Marvel Mistery Oil, worked in a bit and refilled?????........Or something?????....<>rob<>

Rob, you can pull it out and change the fluid, Might help, Might not. http://www.bassboatcentral.com/smileys/wink.gif

There is a seal and o-ring kit for it.

Rusty.....Just pull it and pour the fluid out or work the system up and down. Do you think the Marvel Oil is o.k. to help flush things out??...<>rob<>.

I would pull it and remove the trim motor, pour the fluid out and refill, like I said it may or may not help.
I wouldn't put anything but Bomb trim fluid in it.