Carburetor leakage
in 2 Stroke Technical Questions
8 years ago
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by moshe rudko » 7 years ago
Must be honest ... I bought a new aircraft with ROTAX 912ULS 8 months ago and since then did noting with the present. I plan to make some maintenance work and in this opportunity to check from where the leakage is ? (BROTAX advised to check the oil injection pump) and I am going to have a look there. Actually it's the only place that may cause this leakage since my carbs are completely dried of gas and yet it's leaking.
The oil reservoir is half full and is above the engine so I guess BROTAX knows what is he taking about.
Will share my finding in the coming days.
Greeting
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by moshe rudko » 7 years ago
Hi There,
In refer to this topic, I disassembled the oil injection pump and it seems like every thing is in place, furthermore couldn't see any sign for oil leakage.
Then I looked once again at the throttle, cable sync and figured that while i was replacing a new cable I synced the oil and the gas by adjusting the oil lever. This means that the marks are not align anymore. I suspect that the alignment is essential to control the oil flow? If so by aligning the marks the hose should be completely close at this point? And if it doesn't (like in my case, there is nothing to prevent the oil of keep flowing to the carbs?
Is my assumption make sense?
If so, my question is:can I preposition the oil lever to be aligned (marks) without changing the carbs sync? I fixed it like this to get the 2% oil/gas mixture. If I will readjust the oil lever the mixture will be changed to less. If I will readjust the throttle cables it will impact the sliders.
Hope I was clear.
Is someone has an experience on this?
Thank you
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