swiftcraft Posted February 27, 2013 Share Posted February 27, 2013 Hi everyone, I have a mid 70's 50 P Evinrude outboard. The boat has been sitting around for a while now with no use. Today i connected the battery and found the tilt would not go up or down although you can hear the pump working. I topped up the hydraulic oil and the motor tilted up but not down although i can here the pump also working. There is a screw which i loosened which let the outboard down. There is also another bolt at the bottom which i cant seem to get undone. What could the issue be? thanks Link to comment Share on other sites More sharing options...
Yarraone Posted February 28, 2013 Share Posted February 28, 2013 Hi mate check the level of the fluid.. you may have to top it up or bleed it.. Mine has a small leak so at times it will go up but not down.. I just add some fluid and its all good Link to comment Share on other sites More sharing options...
Reesn Posted February 28, 2013 Share Posted February 28, 2013 Check the relays mate. Same thing happened to me. Took 10 minutes to fix. Got 2 new ones from jaycar for $25 Link to comment Share on other sites More sharing options...
swiftcraft Posted February 28, 2013 Author Share Posted February 28, 2013 Fluid is fine as when i fill it up it spills out. Still won't go down. When i loosen the tilt valve screw with a flat head screwdriver the motor comes down. Tightened the screw and tilted up, again it won't come down although i can hear the tilt motor working but the hydraulic lifter doesn't move down. There are 2 allen key type screws on the outside of the tilt motor. One which is used to top up oil, the other i don't know as i can't unscrew it as the allen type thread is worn out. Tried to open with multi grip pliers, but no good. There is also the flat screwdriver head screw which tilts the outboard down.I have traced the cable from the trim motor which seems to go directly to the wire harness which connects to the battery. I cannot find any relays connected to the tilt motor. Link to comment Share on other sites More sharing options...
swiftcraft Posted March 2, 2013 Author Share Posted March 2, 2013 i could not find any relays. I traced the cable coming from the tilt motor all the way to the switch at the front of the boat. No relays just straight cable to the up/down switch. Please note that electrics is working as the pump is functional up and down but no movement of hydraulics coming down even if i put force on it. Oil is good. When i loosen the manual release screw the tilt comes down fine. I can't find any relays or soleinoids whatsoever which is weird. Evinrude 70's outboard model number - 50473M Tilt No - ESZ 4015 12V E5 Brand name with some letters not visible - P ES OLINE (these are what we can see, spaces are the letters not visible as they are worn out) Link to comment Share on other sites More sharing options...
mimyo Posted March 2, 2013 Share Posted March 2, 2013 Sounds like you have a relay problem. The relays on mine are under the cowl. Link to comment Share on other sites More sharing options...
swiftcraft Posted March 2, 2013 Author Share Posted March 2, 2013 How are the relays connected to the Tilt/Trim when the cable goes directly to the switch. Can't see any connected to the tilt cable going to the outboard. Link to comment Share on other sites More sharing options...
swiftcraft Posted March 2, 2013 Author Share Posted March 2, 2013 How do you fully remove the check valve to get to the shuttle valve? (maybe its stuck) It seems the check valve screw just keeps spinning and doesn't come out. Link to comment Share on other sites More sharing options...
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