Bledding tilt&trim unit

L

les skymo

Cadet
Joined
Jun 19, 2010
Messages
24
Just rebuilt the trim cylinders on my 1977 115 evinrude model no.115799S and drained the pump,what is the best way to bleed the air out of the system?
 
J

jonesg

Admiral
Joined
Feb 22, 2008
Messages
7,174
Re: Bledding tilt&trim unit

Fill it up and cycle from extreme to extreme of travel, up and down.
You can loosen the manual release and do it by hand, keep checking the level and fill as needed. Tighten release valve TIGHT and try it out.

I can do my 150hp by hand, you just have to go slow and give the fluid time to move through the internal valves. Once it starts moving it gets easier.
 
tashasdaddy

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Bledding tilt&trim unit

it will never build up with manual release screw loosened.

Tilt motor all the way up and lock it there, open , fill, close. Unlock, lower motor all the way down. Now back up, lock, fill, close, lower. Repeat, repeat, repeat..

Use Dextrin II auto trans fluid, or power steering fluid.
 
A

alzxracin

Recruit
Joined
Aug 11, 2010
Messages
5
Re: Bledding tilt&trim unit

im having about the same issue with 200 evinrude still not sure of the procedure when you raise motor by hand you fill with fluid do you open release screw allow motor to go down and then close release and repeat
 
D

derrickwheelock

Recruit
Joined
Dec 6, 2010
Messages
2
Re: Bledding tilt&trim unit

i have a 75 hp chrysler prolly 1970s and i am wondering how to bleed it and what type of oil..thanks
 
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