Duoprop shaft seal(s)

[DOGHOUSE26]

Depending on work schedule I'd love to bring the beer . I buy synthetic in 5 gallon pails from Pennzoil supplier off Scripps Poway Pkwy.

[Wizard]

Sounds like we could have us an hour or two 'How to replace outdrive seals' training session after work this week, and a couple of beers to go with it. Now that it is daylight savings time, we have plenty of light after work. Shall we shoot for something this Thursday, right after work, 5:00PM?

What brand of outdrive oil?

[Knot Now]

I buy Mobil 1 at Kragen. You need 3 Quarts/liters.
Thursday is fine.
Phil

[Wizard]

Ok, Thursday 4/14/05, 5:00PM, it is. Anyone wanting to stop by, I will PM you my address (In the Mira Mesa area) or you can call me on my cell (619.654.1161). Phil is going to bring tools and show me how to change the shaft seal on a duoprop.

I found all the parts I need in town, in stock, spread out over 3 different stores (lucky me.. lol).

Thanks Phil.

[NoSlack]

I'd love to sit in on the class, but there is no way I can make it this semester. We're hitting it hard at work, 10 hours a day 6 or 7 days a week for the whole month of April.

Next time the class comes up, I'll make the time to show up, and hopefully I won't be the host instructor like Glenn is this time.

Mike

[Wizard]

Phil, others,

Need to ask what gear oil to get again. I just went to Kragen, they carry both a Mobil 1 Synthetic Gear Lube 75-90W (were out), and the same thing in a 75-140W (with added logo of being for SUV & Light Trucks). The manual only says Service SE 10-30 or 10-40W. Manuals are often outdated, I understand. Should I ask Blackman's?

Picked up all the other parts needed today. Seals, o-rings, zinc, and new prop nut.

[Knot Now]

Glen,
I have always used 75-90.
I think I compared it to volvo gear oil.
I would call blackman or outdrive exchange?
I picked up the tools and props from the boat.
Phil

[NoSlack]

Glenn

Here is what I've been told about gear oil for the DP.

If you ran synthetic from day one, stay with it.
If you ran regular oil from day one, stay with that.

In the old days when our boats were built, 10W-30 or 15W-40 engine oil was the recommended oil for the drive.

The new school of thought is the clutch cones need a heavier oil and you should run a 80W-90 gear oil. I use Valvoline high performance SAE 80W-90 (not the synthetic) from kragen.

Volvo outdrive oil specs http://www.marinepartsexpress.com/outdrives.shtml

Here is everything from the DP section

AQ290-DP, AQ290A-DP Gear oil, API GL-5, SAE90 2.7 liters 1.95:1, 2.30:1

DP-A Gear oil, API GL-5, SAE 90 2.7 liters 1.95:1, 2.30:1

DP-A1 Gear oil, API GL-5, SAE 90 2.7 liters 1.78:1, 1.95:1, 2.30:1

DP-A2, DP-B, DP-B1, DP-C, DP-C1,DP-D Synthetic gear oil, API GL-5,
SAE 5W-90 2.7 liters 1.78:1, 1.95:1, 2.30:1

DP-D1, DP-E Synthetic gear oil, API GL-5, SAE 75W-90 2.7 liters 1.68:1
1.78:1, 1.95:1, 2.30:1

DP-G Synthetic gear oil, API GL-5, SAE 75-140 2.7 liters 1.68:1, 1.78:1, 1.95:1, 2.30:1

[Wizard]

Ok, now I wonder what I just drained out of the outdrive? Bought the outdrive new last year, prefilled, from Volvo Penta. Doesn't look synthetic (synthetic being a blueish color, what I drained being more like smelly, heavy, non-synthetic dark green).

[Knot Now]

Valvoline synthetic is not blue, its a clear light green and smells.
From my experience with car transmissions its OK to go from reg to synthetic. In fact its usually recommended that you start with standard oil for the first oil change. I can't imagine not using synthetic and I change the oil four times a year.
Just my 2 cents
Phil

We do all the necessary repairs and pressure check before you refill with gear oil.