Fishop Posted September 18, 2017 Share Posted September 18, 2017 Just checked my gear lube and its black as night and quite thick. Is this normal or should it have a viscosity more like engine oil? I don't know the full history of the engine but its 10 years old and only done 250 hours so I am guessing it probably hasn't been changed. Also just wondering if I should give it a flush of sorts or if just changing it once will suffice. Thanks!! Link to comment Share on other sites More sharing options...
rickmarlin62 Posted September 18, 2017 Share Posted September 18, 2017 drain it overnight then fill next day..shouldn't need flush..run it a few times then change again...best way you don't want to flush with cleaning agent as if it retains any it will ruin new oil..rick Link to comment Share on other sites More sharing options...
Fishop Posted September 18, 2017 Author Share Posted September 18, 2017 35 minutes ago, rickmarlin62 said: drain it overnight then fill next day..shouldn't need flush..run it a few times then change again...best way you don't want to flush with cleaning agent as if it retains any it will ruin new oil..rick Sorry yeah thats what I meant about "a flush of sorts". Ill drain/refill. Then take it out for a spin, bring it back and drain/refill again for the sake of an extra 20 bucks. Link to comment Share on other sites More sharing options...
Fishop Posted September 19, 2017 Author Share Posted September 19, 2017 You were right I left it drain for a cpl hours. Was still coming out ever so slightly. Barely any shavings in their however I only got about 500mls out. Says it should hold 710mls. Put back in close to 700. Link to comment Share on other sites More sharing options...
cfish Posted September 19, 2017 Share Posted September 19, 2017 Gear oil is twice as thick as engine, as long as it's not cream coloured which indicates water I wouldn't waste time or money flushing, go fishing instead. Link to comment Share on other sites More sharing options...
Fishop Posted September 20, 2017 Author Share Posted September 20, 2017 17 hours ago, cfish said: Gear oil is twice as thick as engine, as long as it's not cream coloured which indicates water I wouldn't waste time or money flushing, go fishing instead. The stuff coming out was 10 times thicker than the stuff going back in. Easy job, took 5 mins and 20 bucks hardly breaks the bank. Fishing in 20 knot winds sucks up here so may as well do some maintenance. Link to comment Share on other sites More sharing options...
rickmarlin62 Posted September 20, 2017 Share Posted September 20, 2017 im comin up there we have thirty knots...rick Link to comment Share on other sites More sharing options...
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