Trim electric motor fills up with hydraulic fluid!

S

scottpellegrin

Seaman
Joined
Jul 25, 2007
Messages
60
225 VMAX...I'm on the second electric motor and now after a few days it has oil in it again. The origanl electric motor shaft seal was fine just as this new one was. Why is the hydraulic pump pushing oil inside it?
 
S

scottpellegrin

Seaman
Joined
Jul 25, 2007
Messages
60
Re: Trim electric motor fills up with hydraulic fluid!

Come on...no one is willing to throw an idea my way?
 
O

Outsider

Lieutenant Junior Grade
Joined
Apr 24, 2007
Messages
1,022
Re: Trim electric motor fills up with hydraulic fluid!

Shaft seal leak ... :rolleyes:
 
S

scottpellegrin

Seaman
Joined
Jul 25, 2007
Messages
60
Re: Trim electric motor fills up with hydraulic fluid!

Thanks for your reply! Do you mean the shaft seal on the trim motor? If so it looks fine on both trim motors. Either way it's not a seal that will keep under pressure hydraulic fluid out anyway. Its not designed in a way that it can. I'm convinced the hydraulic pump is forcing hydraulic fluid into the trim motor. Why would the hydraulic pump do that?
 
9

99yam40

Fleet Admiral
Joined
Sep 7, 2008
Messages
8,877
Re: Trim electric motor fills up with hydraulic fluid!

possibly a bad seal on the pump letting fluid pressure to where it does not suppose to be. Just a guess
 
stylesabu

stylesabu

Master Chief Petty Officer
Joined
Aug 2, 2009
Messages
849
Re: Trim electric motor fills up with hydraulic fluid!

try adding a couple of drops of dye to your hydro oil.dye availbe at most auto parts. this why yuo will know for sure if its hydro oil
 
Y

yelmrap

Cadet
Joined
Jul 19, 2012
Messages
24
Re: Trim electric motor fills up with hydraulic fluid!

I would check the shaft seal on the pump. It's probably blown/worn. Reasons for shaft seal failures are abnormally high pressure or vacuum at the pumps inlet port. High pressure will be seen if the pump is rotated the wrong direction and high vacuum is usually from a blocked or restricted inlet. Check the inlet strainer. The hydraulic fluid itself maybe dirty causing friction.
 
You must log in or register to reply here.
Top