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See full version: How to Check the Lower Unit Oil


Barnabe
17.05.2021 6:46:51

Place the flushing attachment's discharge ends over the raw water inlets of the motor. Turn on the water full force. Start the engine and allow the motor to warm to its normal operating temperature. more


marrypires12
25.05.2021 2:55:42

Shut the motor down. Remove the lower unit's vent plug, a large bore, countersunk screw which you may remove with a standard slotted screwdriver. If oil does not leak from the vent plug when you remove the screw, the lower unit oil level is low. here


edwinc112
12.05.2021 22:44:13

Ensure that the motor is vertical and is level from side to side, whether on your boat or a motor stand. If the motor has not been run within 30 minutes, connect a garden hose to the motor's flushing connection or to a motor flushing attachment. more


happymoon
05.06.2021 23:23:28

Locate the dipstick, usually screwed into the gear case oil filler on top of the gear case, marked "Oil." Unscrew the dipstick and remove it from the drive. Wipe the oil from the dipstick with a clean, lint-free rag and screw it back into the oil filler. [links]


fresno
09.06.2021 14:31:00

Once the old lube has finished draining, fill from the bottom (drain) until oil comes out of the (upper) vent in a solid stream. Reinstall the vent screw first, then remove the oil source from the drain hole and quickly reinstall the drain screw. This will minimize the spillage of oil. [links]


Jerryparson
05.05.2021 6:39:25

In that case, go to Sears, your local auto parts store, or a motorcycle shop and pick up a "hand impact" tool.


weed
24.05.2021 21:28:38

Place an appropriate container underneath the lower unit and first remove the drain screw. Then remove the vent screw and more oil should come 'gushing' out. here


espermatzd
28.04.2021 22:55:36

Ok, in the very lowest part of the lower unit there's a big ol' flat-headed, slotted screw. This is the gearcase drain. Higher up, and sticking out the side (on the same side as the drain), is the vent screw. It's usually a more rounder-headed screw but is also slotted.


sturle
16.05.2021 6:31:59

When servicing the lower unit gear lube, have the motor in the normal (operating) position, not raised up. more


Hiro Protagonist
17.05.2021 4:30:24

While it's draining, take a look at the drain & vent screws. There should be a sealing washer that came out with the screw. If it's not on the screw, make sure it's still in the lower unit and in good shape. If it looks shredded or in poor shape, replace. more


inkubus
09.06.2021 14:31:00

Another way to prevent getting this page in the future is to use Privacy Pass. You may need to download version 2.0 now from the Chrome Web Store. [links]


dust
05.05.2021 6:39:25

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chariottrading
24.05.2021 21:28:38

If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. here


silverman
28.04.2021 22:55:36

If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware.


tamara
16.05.2021 6:31:59

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johnriderjr0
17.05.2021 4:30:24

more


Ostrich09
29.05.2021 23:16:09

The 120 hp, Force / Mercury outboard, requires a 50:1 ratio, one pint of 2 cycle oil to six gallons of fuel. here


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31.05.2021 8:39:09

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Vladimir
21.04.2021 9:47:46

What is the fuel mixture for a 120hp mercury force outboard motor?


im3w1l
12.05.2021 1:29:28

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farmer_boy
01.05.2021 11:17:58


TodX
22.06.2021 7:00:18

Thanks again for the tips.


BitLex
11.05.2021 12:22:53

It should hold about 10psi.


marcelus23
03.05.2021 8:32:11

How long does the unit need to hold pressure for, and at what psi?


kiav
08.06.2021 1:01:36

"So does the LU need to be drained completely to do this test? Is the tub of water test common or do I need to also do that if I see that it holds the 10psi of pressure ok?" [links]


celina111
16.05.2021 0:23:00

Is this the same LU that had the melted impeller and has the possible "bad bearing"? If so I'd be surprised if it didn't melt all the rubber seals when the bearing overheated. more


Stickboy
23.05.2021 2:12:16

So does the LU need to be drained completely to do this test? Is the tub of water test common or do I need to also do that if I see that it holds the 10psi of pressure ok? here