mont315 Posted December 28, 2013 Report Share Posted December 28, 2013 hi peeps just got an aprilia 320 and wanted to change the gearbox oil, but looks as if there are 2 drain plugs on the bottom of the crankcase, any idea which one it is Quote Link to comment Share on other sites More sharing options...
lineaway Posted December 28, 2013 Report Share Posted December 28, 2013 You are correct for asking, one is the drain, the other is the de-dent with a spring for the shift drum. The bolt should be the drum, the hex should be the oil. Let`s see if someone else has an opinion.. Quote Link to comment Share on other sites More sharing options...
b40rt Posted December 28, 2013 Report Share Posted December 28, 2013 Have a look here, lots of good info http://www.armstrong-trials.co.uk/HIROclutchgear.html 1 Quote Link to comment Share on other sites More sharing options...
mont315 Posted December 28, 2013 Author Report Share Posted December 28, 2013 You are correct for asking, one is the drain, the other is the de-dent with a spring for the shift drum. The bolt should be the drum, the hex should be the oil. Let`s see if someone else has an opinion.. just my luck both are hex and worn so cant undo either one, looking at the engine diagrams it look's to me its the outer of the two will wait and see what else is said Quote Link to comment Share on other sites More sharing options...
lineaway Posted December 28, 2013 Report Share Posted December 28, 2013 Wait, I`ll dig for my manual. I want to say it`s the inside. If you pull the wrong one, it could mean a lot more work is in your future! Quote Link to comment Share on other sites More sharing options...
lineaway Posted December 28, 2013 Report Share Posted December 28, 2013 It is the one closest to the rear brake pedal. 1 Quote Link to comment Share on other sites More sharing options...
nelly1 Posted December 28, 2013 Report Share Posted December 28, 2013 eeny meeny miney mo Quote Link to comment Share on other sites More sharing options...
mont315 Posted January 2, 2014 Author Report Share Posted January 2, 2014 (edited) thank you lineaway, I had emailed Armstrong about it but had no reply back until today and like you said its the inner most plug There are two hex headed bolts on the underside of the engine on the left hand side as you sit on the bike. The oil drain is the inner of the two, but the outer is just the neutral detent cap, so it wouldn't be a disaster if you accidentally removed it. Don't over tighten the bolt - it is quite a short thread and I have seen many stripped ones! I havn't seen any with allen heads, so maybe yours have been changed? 'hope this helps cheers john Edited January 2, 2014 by mont315 Quote Link to comment Share on other sites More sharing options...
lineaway Posted January 3, 2014 Report Share Posted January 3, 2014 If I remember right, at least on the Aprilia the detent bolt also holds a spring that can be sprung when the bolt is removed. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.