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Oilmatic pre-oiler
Hello everyone. Have just searched the thread and can't find any reviews about this system. Our RV9 (H2AD) sits for a period of time over winter and I'm not comfortable with a "dry start" in spring or any other time. I like the idea of having oil pressure before starting, but at $1600 or more?? Any thoughts or something else I should be looking at?
Thanks - Ron RV9 C-FTJE |
Accumulator
I have a Morrosso accumulator from Summit Racing. I have a handle that is above the rudder pedals that goes through the firewall to turn the on/off valve..
I turn the handle to off before shutdown. The thing now holds a quart of oil at 70 psi. Before start i turn the handle and it pumps the oil pressure up to 30 psi or so. I also have an inverted oil system. This thing works in conjuction with that as ai now never get any drop in oil pressure when rolling inverted. Cost was aroud $200 from distant memeory..Works great. Frank |
Keep in mind that the biggest problem on Lycomings during "dry" starts is the cam lobes.
These do NOT get oiled by pre-oilers unless the "ney-nozzles" are installed. Normally the cam lobes are oiled by "splash" after the engine is running. |
What I did...Filled sump and oil cooler with oil, removed spark plugs, preheated engine, turned over with starter while purging air out of pressure sending flex hose. Then started. Oil pressure noted in 10 sec.
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Right at this point now. How much oil did you put in total if you also filled the oil cooler? Did you fill the cooler just by removing the uppermost fitting on the cooler? |
I've got an Oilamatic engine preoiler in my Cessna 180. It's been in since the early '90s when I installed this engine. It provides me with the opportunity to oil the engine on start-up and after oil changes. At the annual it provides lubrication during the compression check.
Also, although it's not approved for in in this case, I've found that using it on shut-down preserves oil pressure as the engine stops, and you can see the prop blade hit the last compression stroke and bounce back. It never does that if the preoiler isn't in use. Since it's electric, it runs whenever I want it to. It's not a one-shot device like an accumulator. I'd recommend it if you can spare the weight - I think it was around 8 pounds, maybe a little more. Dave |
I removed hose at outboard fitting (both are on top on -10). I used a funnel, heated the SAE 50 mineral oil in boiling water, filled cooler with .75 Qt. I put 9.75 Qt in sump. So 10.5/12.0 Qts on first flight. I maintain approximately 9 qts now.
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Mel, thanks, but what are "ney nozzles"? Just had the engine OH by Aerotec in Nova Scotia c/w the T mod. New style, wide lobe cam and tappets etc. I have 35 hr. on it now and am thinking of anything possible to make this engine last. Never even thought of the splash effect only on the cam - assumed that oil pressure would do the trick. Ron
RV9 C-FTJE |
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http://chuckneyent.com/neynozzle.asp |
Mr. Google
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