drained and refilled gearbox with fresh oil.silky smooth gear change now
How easy is this to do?
very easy took me about half hour to 45 mins.
jack up the front of the car,and support on axlestands
then on top of the gearbox at the back end of the gearbox you will see the speedo cable where it goes into the top of the gearbox,its held in with a 10mm bolt.undu this bolt FIRST as if you drain the gearbox and cant get this bolt undone afterwards you wont be able to refill the gearbox with oil! (the speedo cable is tricky to see as its dark and concealed right at the top/back of the gearbox under the wiring loom and fuel pipes that go to the fuel filter but its easy enough to find)
once you have undone the 10mm bolt,carefully pull the speedo cable out of the gearbox and push it to one side.
then crawl under the car and locate the underside of the gearbox.along the bottom is a nut with a sunken square hole in the middle of it.this is your drain plug.get a 1/2'' socket bar and insert the socket bar directly into this square hole (you dont need a socket bit on the bar) and undo the drain plug.
have a bucket ready for the oil that will come out.
once its drained clean up the the plug threads and put it back in the gearbox.do not over tighten the nut as you may snapit or damage threads but make sure its tight enough not to leak.
then go back to the speedo cable hole and insert a funnel into the hole (you may not wish to do this but it reduces spilling your new gearbox oil over the floor.(or you could attach a long enough piece of rubber tube to the new bottle of oil and wiggle it through the hole and hold the bottle upside down till its empty)
Top up with 3.1L of 80w/90 gear box oil.(cost me £18 for 3 individual 1L bottles from local motor factors)
reinsert the speedo cable back into the gearbox and tighten up the 10mm nut.
double check your drain plug is tight and lower the car back down to the floor.
Test drive car for a few miles and ensure the gears all engage smoothly and there is no funny noises.and make sure your speedo works.
Once you get back home check for leaks around the drain plug and if you have done everything correct then job done!