1968 Evinrude 85 hp 85893a water in LU

dan2744

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I just changed impeller and pinion bearing and am getting lots of water in the lower unit. Is there a kit for this? Which seals are most likely to leak?
 

jimmbo

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The two ring gaskets under the drain and vent screws are common leakers. The one on the driveshaft under the water pump weakens and allows water from the water pump in and forces oil out others seals. Propshaft seals are prone to damage from fishing lines. You just had the gearcase apart. There are O-rings under the screws that attach the back cover and an o-ring for the cover, there are also gaskets/seals/o-ring under the two studs that hold the upper housing to the lower housing, also the oring between the upper and lower housing. There might be kits for it, but I've never seen one, just always ordered the parts a la carte
 

dan2744

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Thanks, I ordered a la carte, It looks like the seals on the water pump around the drive shaft failed, I also am going to replace the o ring between the upper and lower housing. Thanks for the reply.
 

dan2744

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Wherever the leak is coming from, its really bad, It wasnt leaking before this so I am guessing it started due to me messing with it.
 

dan2744

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I think you are right about the pump pushing water in, and gear oil out the other seals.
 

boobie

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Pressure and vacuum check it before you tear it down. That way you'll know exactly where it's leaking.
 

dan2744

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I put new seals in it and when I was reassembling I noticed fluid coming out of the hole where the electric shift wires run. I figure I will get it all together and do a pressure check. Is fluid supposed to be in that area?
 

jimmbo

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You might be buying a new cable/harness. The cable/harness has 3 areas with raised ribs(one near the bottom, 2 areas on the top end, to allow one cable for both long and short shaft engines), those are to seal the passage to the case. The cable/harness can be damaged by improper installation and removal. It is possible for the passage in the housing to have been damaged, as in a scratch/score
 

dan2744

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That makes complete sense, this one has no seal whatsoever
 

F_R

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As stated already, the ribbed areas function as o-rings sealing the hole that it passes through. Reading this, I wonder if it has a "real" shift cable, or a home-made one? Yes, the lower end, where the knife connectors are, is submerged in oil
 

dan2744

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It's definitely homemade, the way I got it. I looked at the part and part number, I don't have it. It's way expensive to buy. I don't have a lot if options, except maybe permatex.
 

dan2744

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All I have are 2 wires coming up that shaft, so it's a big hole to seal. I see how it's supposed to be now, this could be time to find a new lower unit.
 

F_R

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Unfortunately, those wires are often in bad shape. That makes them tough to find and expensive to buy. It's sad to see otherwise good motors scrapped just because of a wire. Perhaps somebody ought to consider making reproduction cables at a reasonable price.
 

dan2744

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I'm going to come up with something, I'll fill that hole with permatex until I can't get anymore in there, lol. Thanks for the info.
 

jimmbo

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If you try the sealer method good luck. I hope the wire chosen by the ad hock repairman is durable enough to withstand exhaust heat, fuel, oil and whatever else is in the midsection. You also have to seal it where the cable exits the midsection
 

dan2744

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I pulled the boat up and now I noticed that it looks like the cable has been pulled from the lower half and is hanging from the upper half. I think everything I need I'd there, it just needs to be fed down through to the shift coils. Im having trouble posting the pic but I think I just need to disconnect the wires from somewhere up top and then reconnected. Where is the easiest place to disconnect from the upper do that I can attach to the lower?
 

racerone

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To me it sounds like you have to go back to a factory original cable.-----New or a good used one.------Quality only hurts the pocket book once !!
 

dan2744

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Yea, it sure does, it's all there, it was just put together wrong. I got it from a couple young guys who kept telling me they changed the propeller. I think they meant impeller. It's a short shaft and looks like the cable had plenty of slack in it to run all the way down. Its ribbed and rubber and looks like it was ripped apart from the shift coils.
 

racerone

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??----The shift cable disconnects are the back of the engine.-----Then you remove the back half of the bottom cowling.------You then remove the covers to access where cable goes into the exhaust housing.----Then attach something to the cable to fish it back up on re-assembly.---Now you remove the lower unit.-------So was any of this done on this motor ?----Any pictures of what you are facing now ?-----Your location ?.
 
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