Only possible
[ non guaranteed fix was to extract the lower end gear case, weld the crack and then re-install the gear case] .
Do you have to break in a lower unit?
Technically,
a new gearcase should be broken in as if it were a new engine (for the first hour)
. Vary RPM’s, no need to “tuck trim” in this case. After 1 hour, normal operation. Change gear lube at 10-20 hours (Mercury or Quicksilver High Performance).
What happens when lower unit goes out?
Bad outboard lower units can give the operator shifting issues, and other signs will include
water in the gear lube, metallic particles on the drain screw magnet, clunking sounds when shifted, or the loss of the ability to shift into gears
.
How do you remove a lower unit?
Can you fill lower unit oil from top?
This.
Adding from the top, with the bottom buttoned up so oil doesn’t drain right back out, creates an air pocket
. It is a pain filling from the bottom though… Yep, if there isn’t oil in the LU, then there is air.
Why is my lower unit leaking oil?
The problem will be simple to see once the lower unit is pulled. It also could be that
your new gear case has a blown seal , especially if it was overfilled
. The seal below the water pump can get sucked in when it cools if there is too much lube in it because of not enough airspace for expansion …
What causes lower unit failure?
Just random failures due to
normal wear and tear
. Wear and tear over time. Fishing line around prop shaft damaging seal and allowing gear lube to leak out or water to get in. Impact when a propeller hits bottom.
How much does it cost to rebuild an outboard lower unit?
Rebuilding your engine will cost
around $2,500
. That difference of $1,000 to $2,000 will buy a lot of gas, so consider carefully.
How do you rebuild a boat lower unit?
How do you break-in a new Yamaha lower unit?
How do you break-in a new outboard lower unit?
- Fill unit with manufacturer’s required gear oil to recommended level.
- Adjust RPM at idle to manufacturer’s specifications.
- Proper shift adjustment is essential.
- Jumping out of gear: If the unit will not stay in gear, the clutch dog has probably been rounded off.
How do you break-in a Mercruiser?
- DO NOT operate the engine below 1500 rpm for extended period$ pf time. …
- DO NOT operate at one continuous speed for extended periods of time. …
- DO NOT exceed 3/4 throttle during the first 10 hours of operation. …
- DO NOT operate at full throttle until the engine reaches normal operating temperatures.
How do you disassemble an outboard lower unit?
How do you remove the lower unit on a Tohatsu outboard?
How do you remove the lower unit on an Evinrude ETEC?
How do you fill a lower unit with oil?
How often should you change your lower unit oil?
Most sterndrive and outboard manufacturers advise you to change the gearcase oil in your lower unit
every 100 hours or once a year
(whichever comes first). Clean oil is critical for protecting the heavily loaded gears in your lower unit and preventing expensive damage.
What kind of oil goes in a lower unit?
You can use
any brand of lubricant that has a grade designation of API GL5 SAE 80 or 90 weight
. Make sure you do not mix different oil brands or weights. into the BOTTOM drain hole. Then slowly squeeze the bottle to force the oil into the lower unit.
Why is oil come out the hole on the lower unit outboard?
Since oil is coming out of it, then
the driveshaft seals (very common) are worn and will leak oil out when the motor is tilted up then lowered
. The seals sit under the waterpump plate and are in the water passageway so any oil leakage will gravitate (no pun intended) to the lowest point which is the drain hole.
Why is my lower unit leaking water?
The reason you are seeing water coming from the seam is that 1-
the water pump is not sealed to the water tube to the engine
or 2- the adaptor that seals the midsection to the lower unit has been installed incorrectly, the seals on the adaptor are gone (most common), or the adaptor was not reinstalled, the one thing I …
How do you tell if your prop shaft seal is leaking?
Can you start outboard without lower unit?
You can run it as long as needed that way
.
Can you run an outboard motor without the lower unit?
No problem
. Either use the flush fitting or use a piece of hose connected with a hose clamp to the water tube. As noted, on an HPDI a hose can be attached to the water pump tube in which case the motor can be run.
How do I know if I have water in my lower unit oil?
Can a outboard motor be rebuilt?
It is possible to rebuild an outboard engine to be reliable when finished
. It is really the skill of the rebuilder and the quality of the components that determine the outcome of the project. In addition to the quality of the original design and manufacturing, rebuilt engines will also have to be reliable.
Are rebuilt outboards reliable?
When finished, a rebuilt outboard engine can be reliable
. The skill of the rebuilder and the quality of the components used will really determine the outcome. The quality of the original design and manufacturing will also influence the rebuilt engine reliability.
What does it cost to rebuild an outboard motor?
It will cost
roughly $2,500
to rebuild your engine. Gas could be bought in a hurry if the difference of $1,000 is gone, so it is important to be aware of that.
