NF - Undersized lower end ports

[John Bacon]

I have a Mercury branded Tohotsu 5hp sail pro kicker motor.  I tried to change the lower end oil today.  Unfortunately, it uses smaller ports than my 50hp Merc, so I cannot use my oil pump to fill it back up.

Has anyone else run into this issue?  Do you know anyone who carries; either an adapter for a standard oil pump, or a smaller sized pump for these outboards?  

[OhioFisherman]

John, this pump mentions an adapter,and comes with one? No idea if the walmarts up there carry them, the ones here are pretty good about ordering things though.

https://www.walmart.com/ip/Shoreline-Marine-Lower-Unit-Lube-Pump/35259578

[OhioFisherman]

https://www.marineoutfitters.ca/index.cfm?category=10025|10026&product=44032632&code=071247274004&eLocation=US

[irishfield]

I've found that the tips you get with a tube of RTV sealant will thread onto one of the threaded adapters that came with the cheap pump and I use those on one of my engines. Just clip it to the correct "step" diameter to work. On another engine I use a tip from a tube of hemorrhoid cream.

Edited November 5, 2018 by irishfield

[Old Ironmaker]

I also got an adapter for my smaller Mariner 15HP(Merc built) from Proctors in Simcoe. The problem I have is the tube is too short to get all the gear lube out. 

[DanD]

Turkey baster.

If one squirt isn't enough; put your finger over the check plug hole. Very little oil will come out of the fill hole. Recharge the baster and repeat as needed.

Dan.

[Fisherman]

10 hours ago, irishfield said:

 On another engine I use a tip from a tube of hemorrhoid cream.

Well I sure hope it's a one product use otherwise the next ones getting a shot of Brokeback Mountain 80W90 marine loob up the hoop.

[porkpie]

Most marinas carry adapters for about $8.  I bought one for my oil pump.  My kicker also has a much smaller port than the big motor. Only made sense.  

[Terry]

I didn’t think most guys would admit to having undersized lower end ports

LOL

sorry. 

Edited November 6, 2018 by Terry

[John Bacon]

Thanks for your help, I was able to pick up an adapter today.

[John Bacon]

7 hours ago, Terry said:

I didn’t think most guys would admit to having undersized lower end ports

LOL

sorry. 

Well, the issue is that my tool was too large for the hole.  I had to find someone with a smaller tool...  ?