how much gear oil ?

[OnTheWaterNow]

Hey guys, I have a question Im changing lower end gear oil.I tilted motor up removed fill plug inspected it clean no metal removed vent plug. oil drained lowered motor let a little bit more out quit draining oil looked good clean no water no metal just didnt seem like there was much that came out. went to marine shop 5 min from house took bucket of oil with me.Asked them if it seemed like it was proper amount that came out.He said no told me to take 2 32 once bottles it will take one and a little out of the other bottle.Came home had motor in operating postion put pump hose in fill tube pumped it in stared to run out vent hole put fill plug back with new washer put vent plug back with new waser, looked at bottle on side where there is viewable once chart said there was 20 ounce left in bottle. so in my mind that would mean if it was a 32 ounce bottle and i had 20 ounce left after the fill i used 12 ounce correct? That is a huge difference from 32 plus ounce the mechanic told me they are a new shop that opened up about a year ago i get parts from them cus they are close a professinal football player from the cheifs not sure of name and a local guy here are supposed to be the owners and they have all young kids there cant be much over 24v 25 years of age just never felt good about what they tell me probably will just stop using them all togther now if it turns out all the gearcase holds is around 12 ounces the motor is 1994 mariner 50 hp 2 stroke 3 cylinder (not big foot) does this sound like that is enough oil any one know thanks for listening and any help

 

[stubbstheman88]

Re: how much gear oil ?

well when ur fillin the grese for the lower unit just try to get as much as u can in the hole without the top hole overflowing

 

[OnTheWaterNow]

Re: how much gear oil ?

I thought you were supposed to let some oerflow the vent then you know its full ?? Iam just wondering about how many ounces it should hold was told 32 plus ounces i could only get it to take 12 ounces and it was empty and that was about all that came out thanks

 

[Moody Blue]

Re: how much gear oil ?

Not familiar with your specific motor but 32oz seems like ALOT of oil. My 1971 Merc 800 takes 22oz (on paper) and 16oz in reality. Despite repeated tries, I can not get more than 16oz in there.

You are correct in the procedure. Fill from the bottom "fill" hole until oil spills out of the vent hole. Add the oil slooooowly, and when full, install the vent plug then the fill plug. Be sure to use new gaskets for the plugs.

 

[OnTheWaterNow]

Re: how much gear oil ?

thanks moody did as you directed i think those guys at the shop were just confused maybe there are some lower units that will accept 32 plus ounces but id have to put 20 plus ounces on the floor to use that much thanks alot feel better now

 

[OnTheWaterNow]

Re: how much gear oil ?

I just found it online it holds 12 ounces so I must have done it right because there was 20 ounce left in bottle after the fill thanks

 

[gss036]

Re: how much gear oil ?

The bigger gear cases will hold about a quart, but with the cheap pumps you need 2 quarts to be able to pump enough oil to fill it up and the bottom of the nozzle/pickup usually does not go all the way to the bottom. With 2 qts, you will have enough left over son only have to buy one next time.