What to use to troubleshoot outboard lower unit?

What to use to troubleshoot outboard lower unit?

The best advice is to gently pry between the lower unit housing and the powerhead. Thin metal scrapers can be used just to get enough separation where you can then insert a screwdriver and pry against the scrapers. This will protect the mating surfaces between the powerhead and lower unit.

What to do if your outboard shaft is leaking?

Use a gearcase pressure tester to build up pressure in the unit and spray the seals with some soapy water to reveal leaks that you can’t see. The next step would be to check the output shaft carrier seals, shown below.

What to do if your outboard engine is overheating?

If your engine is overheating, the first place to look is the impeller inside the water pump. This pushes water from the lower unit intakes up to the engine. To look at it, you’ll need to remove the lower unit and the water pump housing.

What should I do if my lower unit is not working?

However, if you’re trying to pull a lower unit, that ship has sailed. The best advice is to gently pry between the lower unit housing and the powerhead. Thin metal scrapers can be used just to get enough separation where you can then insert a screwdriver and pry against the scrapers.

The best advice is to gently pry between the lower unit housing and the powerhead. Thin metal scrapers can be used just to get enough separation where you can then insert a screwdriver and pry against the scrapers. This will protect the mating surfaces between the powerhead and lower unit.

Use a gearcase pressure tester to build up pressure in the unit and spray the seals with some soapy water to reveal leaks that you can’t see. The next step would be to check the output shaft carrier seals, shown below.

If your engine is overheating, the first place to look is the impeller inside the water pump. This pushes water from the lower unit intakes up to the engine. To look at it, you’ll need to remove the lower unit and the water pump housing.

However, if you’re trying to pull a lower unit, that ship has sailed. The best advice is to gently pry between the lower unit housing and the powerhead. Thin metal scrapers can be used just to get enough separation where you can then insert a screwdriver and pry against the scrapers.