69 evinrude 55hp Triumph

motor runs good can not get it to shift out of foward gear. I have the manual , I've checked voltage on the green an blue wires all good.Solenoids seem to be working.My question would be is there a way to test oil pump before i spend that much anit still dosen't work

Re: 69 evinrude 55hp Triumph

To check the oil pump to see if the shift plunger is stuck in it, you have to disassemble the g/c.

Re: 69 evinrude 55hp Triumph

the piston is not stuck. the clutch dog moves freely on the shaft. I've made it down to the pinion gear .Just afraid to go any futher without asking for some advice

Re: 69 evinrude 55hp Triumph

You said the clutch dog moves freely? It's supposed to be spring loaded to forward gear.

Re: 69 evinrude 55hp Triumph

mccoyboy said:

the piston is not stuck. the clutch dog moves freely on the shaft. I've made it down to the pinion gear .Just afraid to go any futher without asking for some advice

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Whoa, you have started dis-assembling the gearcase? Are you telling us that the piston is not stuck in the oil pump? If it isn't, then you probably are heading in the wrong direction.

Just exactly what kind and how, tests did you make before tearing it down? When you checked the voltages at the blue and green wires, were they still connected, or disconnected? And did you check it by jumping the wires directly to the battery?

Anyhow, the most common causes of no shift are:

Electrical, especially the push button switch

Correct oil, any water in it? Dirty? These will result in the piston sticking in the pump.

BY FAR, the most common is that push button switch, followed by crud and grit in the oil causing a stuck piston. Proper diagnosing before repairing is critical.

Re: 69 evinrude 55hp Triumph

What oil are you using in the L/U and when was it last changed?

Re: 69 evinrude 55hp Triumph

Tim Frank said:

What oil are you using in the L/U and when was it last changed?

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type c premium blend .I changed it after i replaced the water pump.I tested the solenoid at both the shift box and straight from the battery neither would get it to shift when motor was running.I checked the voltage on the wires coming from the shift control both was correct 12 volts. the clutch dog is spring loaded i just meant to say not stuck,

Re: 69 evinrude 55hp Triumph

We are not saying the clutch dog might be stuck, we are talking about the PISTON IN THE OIL PUMP. Is it stuck?? You say you have the manual, so you should be able to see what piston we are talking about. It is the part that moves the clutch dog.

Re: 69 evinrude 55hp Triumph

No sir. The piston is not stuck.

Re: 69 evinrude 55hp Triumph

OK.

Re: 69 evinrude 55hp Triumph

A common problem was a lack of hydraulic pressure required to move the clutch dog to the neutral and the reverse positions. Many times debris clogged the brass screen on the front of the hydraulic pump. You have to remove it to clean the screen and also check the condition of the pump, piston o-ring, and the relief valve.

Re: 69 evinrude 55hp Triumph

Im trying to get that far. Having problem removing pinion gear, any ideas