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manual transmission --- 80w-90 for the gearbox and transfer case
diff is 80-90 oep if a straight diff and different if a limited slip diff gear box is around the 2.5 ltrs as is the diff each
LiSiD oil can be used in LiSiD diffs and straight diffs but straight oil cannot be used in lisid diffs
the transfer case uses the same as the box but the quantity you will have to check in the lubrication section of the user manual
many user manuals recommend a lighter straight oil for transfer cases and boxes ( 30 straight oil) but I find that the light oil promotes bearing wear and gear problems as the oil squeezes out under load
Amber. With machine on level surface,fill gear box with specified gear oil until it starts running out the fill hole on front of gear box. press the helpful button and follow me on fixya for more tips
most Gear boxes with transfer cases have an oil seal between the main gear box and the transfer case so that the oil from the box is not passed through to the transfer case causing it to over fill. If there only a few spots under the car you have time to find exactly where the leak is. May be only an output shaft seal. Check the level of the gear box and transfer case your self It will be level with the filler plug. The oil used is either sae80-90 or oep 80-90. Check manufactures specs on this. If it turns out to be the seal between the two boxes then it will require the unit removal for seal replacement.
Gear oil is special oil used where metal against metal is protected by the heavy oil that contain addative to keep wear down to a minimum.This oil range from sae 70w to 110w .Do not put this in engine only for gear case.
Gear oil is a lubricating motor oil made specifically for transmissions, differentials, and transfer cases in cars, trucks, and some industrial machinery. It has a high viscosity, or thickness, to ensure maximum protection of essential moving parts. http://www.wisegeek.com/what-is-gear-oil.htm - In case you would like to read more into it
Depends on the make year and model, Engine size and transmission type and if it's 4wheel drive or not. Gear oil can possiblt go in the front rear end the rear rear end, The transfer case, The manual transmission. Some units don't use gear oil. Some manual steering gear boxes use gear oil too. Most all gears boxes don't have a way to pour the oil in as they have level plugs in the side at the normal fluid level. These plugs are located on the sides and they frequently can be turned with a 3/8 in drive ratchet extension. If the oil comes out or is just inside the hole with the vehical parked leavel then it's full. Yes they also have drain plugs and they frequently have the same kind and size of plug on the bottom as on the side.
look on the gear box caseing there is a big alan screw head thats the gear box oil filler,, the tranamission filler is on the dif the same kind of alan screw,, dont over fill the gear box or the dif oil
I am unaware of any oil capillary by the sprocket. The only thing in that area not fully exposed to gear box oil is the left end of the shift drum. There wouldn't be enough friction on the drum to need any oil not already provided by the gear oil.
I would suggest the following > Drain the oil and then remove the sprocket and then thoroughly clean up the area around the sprocket and the break. Take the bike to a local welding shop. They should have a MIG or a TIG welder which will weld the casing. After the welding is done ,install a new oil seal on the output shaft.
The above suggestion is the low cost way to get by. The proper way is to replace the casing, preferably as a matched set of upper and lower case halves. If you get just the bottom, ( or top ), half you run a serious risk that the shafts may bind when bolted together. Replacing the lower casing is not all that big of a task. Replaceing the top casing is a pretty big job because the entire top end has to come off as does the crankshaft, clutch, gears and shafts, shift drum and electrical. Major project and NOT for the novice or the timid. You could Google ' motorcycle salvage yamaha ' and get the casing(s) or get the entire gearbox or the entire engine.
It's your decision how far to carry the repair. Personally, I would weld the box. It is a low cost and easy thing to try. Worst case is that you wind up replacing casings. Hey, the weld was worth a try!
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