v-drive oil change

[northstarjim]

Does anyone know how to change the oil in the v-drive? I had a big problem this winter with water inside my boat and I am pretty sure water has entered the v-drive. (I'm not talking about the reverse gear transmission here). There is a dipstick with a very tiny hole - too small for my oilchange pump to get into. There are various other bolts/plates on the v-drive - but I don't know which are safe to remove. Also, what kind of oil to use?

[tenders]

I believe it's 90 weight gear oil that you can buy at an auto parts store in a bottle.

If memory serves there is a drain plug on the bottom of the V-drive, possibly with a square head? However, before I went messing with that I'd go to a plumbing supply store and find a thin copper tube and duct-tape it to the end of my oil change pump.

[Dromo]

The drain plug is at the bottom facing the rear of the engine .a small 1/8 square head plug. If you look at the MMI catalog ,overhaul parts ...rev.Gear/drive train, scroll down to the V Drive, you can see it at the very bottom of the unit
My V-drive side plate reads ...use high grade SAE.20-30 motor oil OR APG 80
gear lubricant
I'd go with the 80 gear oil
Rick

[northstarjim]

...and where do you put the oil in?

Jim

[Dromo]

There is a large square head plug on the very top of the v-drive .you'll need a small funnel to do the job and don't over fill it .Use your dip stick to check the oil level as you fill it, the drive doesn't take much oil
Rick

[CaptainHatty]

I know this is an older thread, but I've search the forum and haven't seen the discussions on gear oil like I have regarding engine oil.

I'm wondering what brand/type specific gear oil everyone prefers to use in their v-drive, or do you care?

[edwardc]

I know this is an older thread, but I've search the forum and haven't seen the discussions on gear oil like I have regarding engine oil.

I'm wondering what brand/type specific gear oil everyone prefers to use in their v-drive, or do you care?

The Walter RV-10D V-drive uses 1 pint of any of the following:

- SAE 30 Heavy Duty Motor Oil (same as the engine!)
- Exxon Spartan EP-68 Gear Oil
- APG-80 Gear Oil

DO NOT USE SAE 80 Motor oil or any multi-grade oil!

You can fill it or top it off thru the little dipstick tube. I bought a 1-pint squeeze bottle (used for icing cakes) that has a skinny, tapered nozzle and a little cap to seal it. Works perfect!