Is a GOOD LU lube pump made anymore?

62Scout

Petty Officer 3rd Class
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Sep 18, 2017
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93
I put the question here as it really isn't a manufacturer specific question..does anyone make a high quality lower unit lube pump any more? Seems like I'm replacing the $10 plastic ones typically sold at places like West Marine and auto parts stores at least twice a year because they just flat fall apart, especially when I get the heavier gear lubes through them (like truck differential oils). Obviously I could have a separate one just for the LU lube and lighter stuff, but even for that, I'd rather just spend the money and get one that I can get some years of use out of.

The search on this site isn't pulling up any relevant (or I just suck at the search function, lol), and Googling is pulling up a bunch of "you can get them dirt cheap at Walmart/Harbor Freight/autoparts stores/etc" hits...I'm half tempted to just buy one of the industrial pumps meant for 5 gallon pails and machine adapter fittings/hoses for different uses, but getting the volume down might be interesting, and I'd rather just buy something off the shelf if it's available somewhere.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
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50,295
how much do you want to spend?

a good pneumatic powered one is quite expensive.
 

GA_Boater

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49,038
What are you pumping? What weight?

How often are you changing lube?
 

62Scout

Petty Officer 3rd Class
Joined
Sep 18, 2017
Messages
93
how much do you want to spend?

a good pneumatic powered one is quite expensive.

I wouldn't hesitate to spend $100 on something quality that I'm going to get years of service out of...possibly a bit more, though I'll buy a few dozen cheap plastic ones before dropping something like a grand, lol.


GA_Boater said:
**What are you pumping? What weight?

How often are you changing lube?

I run 85-140 in the off road stuff, though most of my stuff is running the common 75w-90 lube or 80w-90 marine lube. Depending on what I run the Samurai through that weekend, I'm potentially changing it on a monthly basis. It gets changed any time an axle goes underwater.
 

racerone

Supreme Mariner
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Dec 28, 2013
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38,462
One of those garden pesticide sprayers.----Metal one.---Adapt the hose and trigger / valve to screw into the drain plug.-----Add a gallon of oil.----Pump up the pressure.----Fill lower units like a pro !!!----The one I use now cost me zero coins !!!
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
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50,295
add hoses to your axle and T-case vents and run them to a P-trap on top of your roll cage or fire wall. that will eliminate having to change lube when you dip an axle.

if you change a lot of gear lube, get a few of these https://www.amazon.com/Lincoln-Lubrication-Action-Bucket-Gallon/dp/B00DOAVYH6

these work.....kind-of. they sometimes make a mess
https://www.amazon.com/s?field-keywords=OTC-2359

if you open a shop, get one of these https://www.amazon.com/Lincoln-2535-Portable-Pump-Ratio/dp/B017XZ2JTO
 

Sylva-Ranger

Petty Officer 2nd Class
Joined
Jan 17, 2016
Messages
163
I made mine whit an old extinguisher,juste change the hose and the pressure gage.

Each automn i have to fill about 100 lower unit and i love it.

https://www.youtube.com/watch?v=B9-vGdtLb9A

If you have this old type of extinguisher made to use whit water, it cost you nearly nothing..........And you d'ont need to pump manualy like many others pump, just open the valve.


To refill, you have to depressurise (turning over and open the valve) before opening . after you put about 50-60psi whit your compresser.......sometime you just have to put a little bit of air to keep a good pressure.
 
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