Stupid [edited] TILT

Joined
Apr 20, 2002
Messages
14
I have a 79-85hp evnrde and just can not get the trim to go down.The electric motor is spinning and just nothing happens.The manual release works.So,i decided to take out the check valve?<br />Put it back in,and now i get nothing.No tilt no trim.I'm wondering if the hydraulic seals are shot and if they are is there a kit i can buy to fix myself.Info,it is a new elec.motor and i have a manual but does not show my tilt and trim.<br /><br />help,boating season is in 3 weeks
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: Stupid [edited] TILT

Trevor.... Have you checked to see if possibly the PTT lube is low? If it is, have the engine at its extreme up position, then fill the reservoir. What check valve did you remove?
 
Joined
Apr 20, 2002
Messages
14
Re: Stupid [edited] TILT

Yes, i have checked the ptt fluid and seems to good.I removed the check valve below the portside trim ram.<br />Thanx (newbie)
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: Stupid [edited] TILT

Trevor.... That check valve in itself would have no bearing on your problem. However, should your engine have been in the tilted position and not locked down securely when trailering (both trim rams pulled in), it's possible for the bouncing action to cause a build up of pressure on the wrong side of the oil pump that exceeds the output pressure of the pump.<br /><br />This results in the problem that you've encountered. This may not be the cause of "your" problem, but it is one of the causes.<br /><br />The cure is to remove that same check valve that you removed previously, reach in with long nose pliers and remove the shuttle valve. Look at how it came out so it gets put back properly. Make sure that engine is supported!! Look in that opening. You'll see the reverse side of another check valve. With a small punch of the proper size, insert the punch into the small hole of that check valve. Now, carefully tap the punch with a hammer. This will force the check valve to release the pressure I mentioned and will equalize as it should be.<br /><br />Hopefully this is the cause of your problem. Let me know.
 

johnkc

Petty Officer 1st Class
Joined
Dec 12, 2001
Messages
388
Re: Stupid [edited] TILT

trevor , the procedure that joe just described is in essence the same as i suggested on another post of yours a couple of weeks ago .you stated at that time that the check valve came out in two pieces ,are the two pieces possibly the check valve AND the shuttle valve.were you able to get the pressure to release??? i use the nut trick because that is the way i learned this , and have often thought of using a pin punch to relieve the pressure.hope this helps you let us know
 
Joined
Apr 20, 2002
Messages
14
Re: Stupid [edited] TILT

I have tried the nut job that johnkc recomened on a previous post and now have tried the punch and don't think the pressure has equaled.Is there anything else i can try?<br /><br />Should i take this in for repair or is there some kind of new repair kit?
 
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