Table of Contents
How much does it cost to repair a lower unit?
If you have your local mechanic repair the lower unit, his labor will run about $300-400 for this type of repair. The cost of the parts will be the same as above. Doing the job yourself will cost about $800 more than having a professional do it.
How often should you change lower unit fluid?
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.
Why do you fill lower unit oil from the bottom?
Air.it will take you forever to fill from the top due to all of the air that must be vented out in the process. When you fill from the bottom, with the top plug out, you force the air out as you force the lube in.
How do you know if your lower unit is bad?
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 long does it take to rebuild a lower unit?
Depending on our workload we can usually rebuild your lower unit in 2 to 4 days.
How much does it cost to replace a prop shaft?
On average, you can expect to pay anywhere from $400 to $1,260 total but it can easily approach close to $2,000 for some vehicles. If you have a four-wheel drive vehicle, you may have two driveshafts but in most cases, only one will need to be replaced.
How much does it cost to replace prop shaft?
Whenever the shaft is bent, the entire lower unit needs to be checked for twisting or bearing or gear damage. On an expensive engine like yours, you don’t want to take any chances. Turn it into your insurance company. They will be paying out between $2,000 and $4,000 depending on the total damage to the engine.
How often should you change the gear oil in an outboard motor?
If you’re planning on changing the oil on your fishing boat’s outboard motor this year you should really consider changing your gear lube while you’re at it. Just like oil, gear lube should be changed every 100 hours of use or at least once a year.
How often should the oil be changed on a boat’s engine?
Frequency. Most engine manufacturers recommend that you change your oil every 50-100 hours (check your owner’s manual for your engine’s exact interval requirements). This applies to both gasoline and diesel engines.
Is lower unit oil the same as gear oil?
Lower units contain hypoid gears (think ring and pinion, like a car differential) so they demand extreme pressure additives. The marine gear oil you choose will depend on the size of your marine engine. Consult your engine’s manual and look for the proper marine gear lube for your application.
Can you put lower unit oil from top?
When changing the gear oil always fill from the bottom to the top I use a Lower Unit Quart Pump that fit on a plastic quart bottle of gear oil The hose has a fitting that is threaded , you screw it into the lower hole and slowly pump until it comes out the top Mar 2, 2009.
How do you check oil level in lower unit?
Lower Units Used as Inboard/Outboard Drives Wipe the oil from the dipstick with a clean, lint-free rag and screw it back into the oil filler. Unscrew the dipstick from the oil filler and note the gear oil level. The oil level should be at or near the center of the dipstick, and above the lower mark on the dipstick.
How do I know if my prop hub is bad?
Let’s go! It Has Too Much Pitch. When researching propeller sizes, you’ll notice two numbers associated with each one. It Doesn’t Have Enough Pitch. It’s a Compromise Propeller. You Damaged It in the Water. It’s Made of Aluminum. You Want to Go Faster. You’re Losing Gas. It’s Not the Right Diameter.
What color should lower unit oil be?
What Color Should Lower Unit Gear Oil Be? Brand new gear oil should be a shade of blue, green, brown, or yellow, depending on the brand. Used gear oil should be a black/dark variation of the brand new color. Knowing what these colors mean and also the other colors you will encounter is important.
How do you tell if you have a spun prop?
To tell if your hub has spun, mark a line on the back of the prop hub with lipstick. You can also score your mark using a file. With the mark in place over the inner and outer hub, it’s a simple matter to pull the prop and see if the mark has broken in two. If it has, you have spun a hub.
How do you pressure test a gear case?
So, How To Pressure Test A Gear Case? Remove the lower drain screw & the top vent screw to drain the gear lube. With the lube out, reinstall the drain screw with a seal. Now install the pressure tester in the top vent screw hole and pump up to 10-12 PSI.
How long lower unit hold pressure?
Use the tester to increase the pressure within the lower unit to about 12 PSI, and let it sit for about 2 minutes.
Why does my outboard motor slip out?
If your motor is jumping out of gear then your clutch dog and your engagement points on your forward gear are worn out. To fix this you will need to drop the lower unit, tear her down and replace the clutch dog and forward gear Then reseal her, you are not likely to like the price of this at all!Apr 21, 2008.
