Warning: Last items in stock!
During a rebuild, you invariably find, that the mild steel bush that runs on the oil seal is badly rusted and you should change it, or the rust progresses further in to the gearbox and leaks oil in the boat. my solution is to replace this with a stainless steel bush that cannot rust, and you always replace the seal, so thats included too.
exact length to original. please ensure your flange surface is flat where this bush sits before bolting it back on, with sealant on the aft end of the bush, or you could get a drip with a badly seated bush even a new one like this.
Drain gear oil
2 13mm and 17mm spanners to remove coupling nuts
Long bar or crowbar between 2 studs to stop flange revolving
24mm socket to remove flange nut
3 leg puller to remove flange
Tap/pull out woodruff key
Tap/pull off old bush (if rusted badly, it is difficult with gearbox on, so possible then by grinding/chisseling a notch/groove in it's middle and using the groove, chisel groove backwards. giving it a good ol tap around with a hammer and WD 40 up the end or in a small hole you can drill also works, (dont damage threads) . if the engine is not been badly rusted underneath and the last rebuilder greased the shaft before putting it on, then likely it will just slide off.
Lever out old seal with screwdriver
Wipe out old paint and rust with a rag
Tap in new seal with smear of sealant
Slide on new bush
replace woodruff key
Replace flange(i would dremmel the bore free of rust first and grease), tighten all nut
Slide coupling back together and tighten nuts (should replace if nylock ones)
Refill 0.7l oil (my special oil is better than hypoy)