gearbox novice

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yourmomm

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ok. having read numerous posts on the complexities of determining which type of oil, engine or gear, my gearbox actually requires (would have thought that one was simple, but not so!), im good to go. draining the oil from the sump will be relatively simple, but am i correct in assuming i can refill the oil via the drain sump? if not, where do i put it?! and how do i know when i have put enough in? sorry for being so clueless....everyone must start somewhere...
 
Which gearbox manufacturer and model ?

If TMC they have a web site ( can't find the link just now - will post it later ). Usually the oil capacity is in the handbook.

Or try talking to the manufacturer of your engine as they will often know.
 
Errr.. hang on! If there is no filler plug, maybe its 'sealed for life'? This seems increasingly common with gearbox manufacturers in the auto industry, where the oil is only changed if there has been leakage.

If the only access is via the drain plug, this suggests the makers are not expecting oil changes until the box is opened for repairs.
 
If you manage to get the oil to flow upwards can you let us know - defying gravity is next on my list of "must dos" ... /forums/images/graemlins/tongue.gif
 
um-wouldnt a normal sump pump do the job....? i unfortunately have no idea who made the gearbox, nor what model it is...cluelessness, after all, is an immutable way of being, not simply a temporary state of mind /forums/images/graemlins/wink.gif what i do know is that it is about 20 years old, so i would doubt it is sealed or involves any modern-fangled technology. why cant everything be as simple as motorbikes?!
 
The instructions for a Suzuki DT2.2 outboard say refill with new gear oil by injecting into the lower drain hole until it just starts to come out of the upper hole ... so gravity can be defied.
 
This post is almost at the level of "I've got some food on my spoon, where do I put it".

Use your eyes, read the engine manual, use common sense and think it through. What you are asking should be obvious. If it isnt after a bit of thought, then I reckon you are not sufficiently practically minede to be safe in a boat.

Sorry if that sound rude - its not meant to be. But boats are mechanical things and you need mechanical sense to operate them safely IMHO
 
I tend to agree with you there. People who buy a car and wouldn't dream of messing with the engine suddenly become mechanics on board a boat.

It's a good job marine gear is still a bit agricultural.

A lot of the posts I read on these forums point to people starting something they suddenly realise they can't finish.
The irony is that you need to have a fair degree of mechanical sympathy to recognise what is a DIY prospect and what is not.
 
I would start by having a nice chat with your dealer...He/she might even be kind enough to show you an identical gearbox in his workshop..

You don't want to go undoing the wrong plug..it might just turn out to be actually a bolt head that ,when once loosened,will require a gearbox dismantle to retorque the nut on the inside..or something.
 
I have a PRM hydraulic box and it is filled through the dip stick hole.

There are fill level marks on the stick.

The oil for that is normal engine oil.
 
thanks to all for helpful advice-and as far as birdseye and lakesailor go, my mechanical aptitude, not that it is any of your respective businesses, is perfectly sound, thankyou very much, as far as land-bound machines go, and i have done this job plenty of times on my motorbike. i was asking for a bit of boat-specific advice. if you dont like that, or do not possess the technological knowledge and/or enough grasp of the english language to be actually able to provide any useful, constructive advice, may i suggest you keep you ever-so-humble opinions well and truly to yourselves, and do not try to bully those of us who you may consider inferior to your great selves with your supposedly superior points of view. thankyou kindly.
 
sorry if I offended you, but how do you run a motorbike if you dont know where to put the oil and how to make sure there is enough in there? or is the bike Japanese and the issue never comes up between services which the dealer does it for you anyway.

leave aside that no one on the forum can tell you how / where to do it without knowing the make of gearvbox and engine, it really should be obvious from simply looking at the lump itself.

so sorry I didnt want to offend, but I stand by what I said.
 
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