Oil tank below engine

by Eugene Klimenko in 912 / 914 Technical Questions 6 years ago

Hi all,
I would like to know how they installed oil tank so low?
When I wanted to do that, I found 400 mm limitation!

https://drive.google.com/file/d/1UNlzuFMhN0FwRffTbrfKW9ar0WPOhqEc/view?usp=sharing
https://drive.google.com/file/d/1Rl57-ev7h3vNaaEzvUBU3c686WM-IaIv/view?usp=sharing

Re: Oil tank below engine

by Bill Hertzel » 6 years ago

Bill Hertzel

13 1.95k 7.96k

The aircraft manufacturer is free to follow or ignore Rotax's recommendations as they see fit.
In this case, it is not a catastrophic error.
There is a small risk that the Oil line from the Oil cooler to the Oil pump inlet could drain back to the level of the Oil in the Tank.
We are talking 100-150 mm (4-6").
This might take weeks or years to happen.
Worst case, there will be a 1-2 second delay in the Oil pump regaining prime and Oil pressure appearing.
Not Ideal but also not fatal.
They might have a checklist item to hand prop the engine to confirm Oil pressure before the first start of the day.
This would cover any loss of prime issue.
The engine will run just fine with a low position to the oil tank, The first start will be the only issue.

If this worries you, Hand prop the engine on the first start of the day until you see the first indication of oil pressure.
If you have been seeing valid Oil pressure in under 5 seconds during normal starts, then you are worrying about nothing.

Bill Hertzel
Rotax 912is
North Ridgeville, OH, USA
Clicking the "Thank You" is Always Appreciated by Everyone.

Thank you said by: Eugene Klimenko

Report

You do not have permissions to reply to this topic.

Title	Category	Replies
Service Instruction – PAC SI-PAC-028 “Optional cooling air baffle for ROTAX® Aircraft Engines	General Tech Discussion	3
Leading edge airfoils is sold	General Tech Discussion	6
Oil Pressure Relief Valve	912 / 914 Technical Questions	9
Lane B Engine ECU Nominal Current not reached.	915iS Technical Questions	9
How to Remove Outlet Line from Turbo Oil Sump	912 / 914 Technical Questions	2

Oil tank below engine

Recent Videos

Safety First!

ROTALK News

Prize Giveaway!

Log In/Out

Login