1979 evinrude 140 tilt and trim issues

[Theoutdoorsman]

After returning to the ramp on my last outing, my tilt and trim stopped working. My service manual covers the t-n-t for this outboard, but I suspect the unit was installed on the outboard some time later, as it is a two wire harness instead of three wire, possibly early '80's. Long story short, I had to loosen the manual release valve to lift the outboard by hand to ready it for trailering. Once home, I discovered the fuse in the relay harness was blown. I now have two major problems.

1) I have no idea as to the size of this blown fuse. All writing has worn off, or is simply non-existent.

And
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2) the unit now has a masive trim fluid leak at the manual release valve after retightening. I found this out while testing. (bypassed the above mentioned blown fuse in the relay harness)

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If anyone can assist with these two issues, I'd be most grateful for your help in resolving them. Many thanks in advance!

 

[Theoutdoorsman]

Re: 1979 evinrude 140 tilt and trim issues

bump

 

[boobie]

Re: 1979 evinrude 140 tilt and trim issues

You'll be needing a 20 amp fuse...........You'll have to remove the manual release valve and install a new oring..........be sure to remove the C- clip before taking it out.

 

[Theoutdoorsman]

Re: 1979 evinrude 140 tilt and trim issues

Many thanks for the reply, boobie! Your help is very appreciated. I can clearly see that the o ring is damaged. However, I am having a very difficult time finding the snap ring??? Am I looking for something that isn't even there? Noticed you mentioned a c-clip in your post. Any tips for removal? Snap ring pliers are just not going to cut it. Also, can I use an o-ring from most any automotive store? Thanks again!

 

[boobie]

Re: 1979 evinrude 140 tilt and trim issues

Sorry, meant to say snap ring. It may not be there but double check. Any BRP dlr should have the correct oring.

 

[Theoutdoorsman]

Re: 1979 evinrude 140 tilt and trim issues

Can you help with a part number on the o-ring? The only number I have is for the MRV assembly.

 

[emdsapmgr]

Re: 1979 evinrude 140 tilt and trim issues

511386 is the fuse. 202893 is the oring. 287990 is the valve and seal- if you find it is bad. You can look up your own parts at the factory website: epc.brp.com.

 

[boobie]

Re: 1979 evinrude 140 tilt and trim issues

Agree +1.....

 

[Theoutdoorsman]

Re: 1979 evinrude 140 tilt and trim issues

Many thanks for time emdsapmgr and boobie. Repairs are complete, and I am back to boating again!!! This thread is officially closed ......... :-D