paulburton44
Well-Known Member
I have been taking my Honda 5hp 4 stroke apart and have drained the gear box oil.
So I need to replace it. What sort of oil do I use ?
So I need to replace it. What sort of oil do I use ?
Outboard gearbox oil.
- Thread starter paulburton44
- Start date
colvic987
Well-Known Member
VicS
Well-Known Member
Almost certainly it is an SAE 90 gear oil.
VicS
Well-Known Member
You should be able to download a manual from http://www.honda.co.uk/power/owner/manualsMarine.html
Normal method of filling outboard gear boxes is from the bottom via the drain hole until the oil flows out of the level hole. The squeezy tubes that outboard gear oils are supplied in are designed to facilitate this but the cheapest SAE 90ep oil from a motor spares shop will be a lot cheaper to buy.
Advisable to replace the joint washers on the drain and level plugs. It is said that these are a common source of water ingress
(I fill mine from the top though with a big brass syringe)
Normal method of filling outboard gear boxes is from the bottom via the drain hole until the oil flows out of the level hole. The squeezy tubes that outboard gear oils are supplied in are designed to facilitate this but the cheapest SAE 90ep oil from a motor spares shop will be a lot cheaper to buy.
Advisable to replace the joint washers on the drain and level plugs. It is said that these are a common source of water ingress
(I fill mine from the top though with a big brass syringe)