1968 Johnson 9.5

[Earlo]

Recently picked up a 9.5 Johnson off of CL. Runs great so far. I've replaced the fuel lines with ethanol resistant ones, and have changed the lower unit oil. I was going to tackle the impeller next, but never having done one before, I'm wondering about a couple of aspects. When I changed the lower unit oil, it was kind of a milky light green color, indicating water, but I have no idea when the oil was last changed. I'm guessing I need to replace some seals when doing the impeller, but don't know which ones would address the issue.

https://www.marineengine.com/newparts/part_search.php?part_num=379765&x=16&y=8
The above link shows an impeller kit, but gives no description of what's included.

https://www.marineengine.com/newparts/part_search.php?part_num=382296&x=21&y=11
This link shows a water pump kit, but this may be more than what I need.

https://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1968&hp=9.5&model=MQ-14D&manufacturer=Johnson&section=Gearcase+Group
Finally this link shows the entire gearcase group. If someone could make a recommendation, I appreciate it.

 

[user 6672]

You cant really tell until you tear into it, if your taking your time and in no hurry you can always drop the LU and check the overall condition of the impeller housing and seals and go from there.

Looks like #1,#6,#7 and #12 would be the seals to replace, if they check to be bad.

thats crazy, the kit with the water pump housing and all the seals and screws and impeller is cheaper than the one without the pump housing..

Here is a thread on this forum similar to what you got going

https://www.tinboats.net/forum/viewtopic.php?f=4&t=22756

 

[Pappy]

In general. when inspecting the overall conditon of a water pump assembly, I check the lower plate and upper cup for grooving. If the grooving is enough to catch a fingernail in I will replace the complete pump assembly. Much cheaper than a powerhead later on down the road. If you have a dealer nearby and have the gearcase off then you can drop it by and have them pressure check the gearcase and tell you what seal is leaking and replace that seal or go through the entire assembly, replacig all including the shift shaft seal...which is often the main culprit.

 

[Earlo]

Thanks for the replies. I changed the impeller last night, and was really glad I did so because it looked like it was on the verge of coming apart. The pump housing and plate both looked fine, so no problem there. I bought the impeller at a local evinrude service place and the guy there said that the spaghetti seals were prone to problems on that particular motor. That one is beyond my expertise because it needs to be vacuum tested. He also said that if they did replace a seal, they would replace all of them while in there. The motor was only $300 and runs like a top, so I'm not opposed to investing a little more into it to make it right.