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85 johnson tilt and trim

S

swede1

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tilt up works. tilt down doesn

tilt up works. tilt down doesn't and trim rods wont move.motor fine..fluid fine.. can I get parts explosion for this unit or do i just replace the unit
 
Go to ----shop.evinrude.com---

Go to ----shop.evinrude.com---- find the year ---find the HP---- find the trim and tilt unit ----hit the + thingy and poof the pictures are there.
 
"I assume that you're sayi

"I assume that you're saying that the electric motor operates in both directions BUT when in the down mode, the engine doesn't move.

Does this problem exist just after the engine is tilted to the full up position OR is it a constant problom from any position even after sitting a minute or two?

What is the model number of that engine?"
 
Joe: down tilt is a constant p

Joe: down tilt is a constant problem. model is 85TL79R

Is that a check valve on the port side ..about 3/4n screw...is it worth examining..

ikia: thanks I printed it..
 
Is there a way to relieve hydr

Is there a way to relieve hydraulic pressure on the trim rods... if i could get the motor in a reasonable attitude maybe I could use it like that anyway..
 
"You say that the fluid is fin

"You say that the fluid is fine, meaning I assume that with the engine in the full up position, the reservoir is filled to overflowing which would be correct.

The check valve on the port side, standing in back of the engine facing it, is indeed one of the many check valves. There is a identical valve on the other side of that passageway. In back of that check valve you can see is a shuttle valve that travels back and forth depending on which mode the PTT is in.

That would be a starting point as in my experience thru the years, I have encountered that shuttle valve sticking a couple times. Examine that brass shuttle valve for scoring, chips, etc, anything that might cause it to stick.

There is also a rubber tipped Trim Down Relief Valve located under the oil pump. If that rubber tip becomes damaged or fails for any reason (something I've encountered quite often), the result would be the problem you're having.

I'll send you the hydraulic diagram via email.

When time permits, visit my store ) at: http://stores.ebay.com/Evinrude-Johnson-Outboard-Parts-etc?refid=store"
 
Joe...thank you very much for

Joe...thank you very much for the great diagram and the trouble shooting suggestions..i'll get at it asap..
 
Joe...found the bad check valv

Joe...found the bad check valve...shuttle valve sticking as you suggested...took care of it and back in business like new....Cant thank you enough...Joe and ikia
 
"Galen.... Glad you found the

"Galen.... Glad you found the problem and all is well again. Now, just wait until you get the bill! (grin)"
 
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