Adrian Lewer Posted May 19, 2010 Share Posted May 19, 2010 Hi all I have been a bod bad boy and need a spanking... I have my Rotax 80 HP engine just sitting on the floor of the garage (covered) and was thinking last night... "this aint good for the thing..... what about rust" Well What can I do to provent crap from forming in the cylenders ? I was thinking of pulling the plugs out and putting 20mls of oil on each CLY and turning over by hand a few times and then just turning it over a couple of times a week by hand just to keep the oil moving ? What's your thoughts ? Link to comment Share on other sites More sharing options...
Spin Posted May 19, 2010 Share Posted May 19, 2010 Isn't there something on the Rotax site(s) about inhibiting an engine? I know the fashion changes from time to time, but from I remember of an old Lycoming service bulletin, they didn't recommend pulling the engine through - theory being that the rings would take the oil film off the cylinder walls. I think the advice was to spray whatever the latest wonder product was into the cylinders then leave it be until it was time to reinstall. Link to comment Share on other sites More sharing options...
facthunter Posted May 19, 2010 Share Posted May 19, 2010 Engine Corrosion. The 912 has Nikasil cylinders and they do not corrode. You should introduce some fresh oil into the crankcase and rotate the WHOLE engine so there is some oil distributed around the inside of the motor. Seal all oil line connections. The exhaust valve guides are the main thing to worry about so if you undo the exhaust pipes and squirt some corrosion preventing substance into the port that should help. There are special storage oils and treatment that is required for engines that are stored, including putting hygroscopic plugs in each cylinder. but the rotax is not as big a problem as engines with steel barrells are. Nev Link to comment Share on other sites More sharing options...
bones Posted May 19, 2010 Share Posted May 19, 2010 Hi all I have been a bod bad boy and need a spanking... I have my Rotax 80 HP engine just sitting on the floor of the garage (covered) and was thinking last night... "this aint good for the thing..... what about rust"Well What can I do to provent crap from forming in the cylenders ? I was thinking of pulling the plugs out and putting 20mls of oil on each CLY and turning over by hand a few times and then just turning it over a couple of times a week by hand just to keep the oil moving ? What's your thoughts ? Whats it doing on the floor? put in in something and use it Link to comment Share on other sites More sharing options...
Adrian Lewer Posted May 19, 2010 Author Share Posted May 19, 2010 Thanks guy's. should be in use by christmas or just after. I would put it in something but the bloody 100" R/C cub is to small ? Link to comment Share on other sites More sharing options...
markendee Posted May 19, 2010 Share Posted May 19, 2010 You should introduce some fresh oil into the crankcase and rotate the WHOLE engine so there is some oil distributed around the inside of the motor. Nev How would you do that in a dry sump? Link to comment Share on other sites More sharing options...
facthunter Posted May 20, 2010 Share Posted May 20, 2010 Introduce oil. Through a tappet/rocker cover would do. Just remove one and have the engine on its side. Might be a little slow but 2 litres would be enough. Nev Link to comment Share on other sites More sharing options...
Yenn Posted May 20, 2010 Share Posted May 20, 2010 One way of inhibiting a 4 stroke if you can run it, would be to put a rich oily 2 stroke mix of fuel in and cut it off with the ignition. Having pulled apart a Rotax I was pleasantly surprised to see the oil all over the place. Link to comment Share on other sites More sharing options...
Adrian Lewer Posted May 24, 2010 Author Share Posted May 24, 2010 Ok so if I take each of the 4 rocker covers off and get 100ML of oil in each of the Cylinders then put the covers back then turn a couple of times that will be fine ? What about putting oil in the plug hole ? goes in the same place ? Link to comment Share on other sites More sharing options...
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