Login

912ULS EGT overheating

by Jacques Van der Westhuizen in 912 / 914 Technical Questions 9 years ago

Page 4 of 4

Start
Prev
1
2
3
4
Next
End

Re: 912ULS EGT overheating

by Jacques Van der Westhuizen » 9 years ago

Jacques Van der Westhuizen

2 6 0

Thanks to all the advice! Everything is now back to normal. What I done:

1. Checked tank outlet - clear
2. Checked fuel filter - clean
3. Checked gascolator - good condition
4. Re-routed fuel flow sender and removed the jet from the sender
5. Installed the flow restictor and fuel return line to tank
6. Checked carb bowls and jets for dirt and obstructions - clear

When performing the test flight the EGTs were normal at 750 - 790C, CHT 80 - 87C, Oil temp 80 - 84C. Engine is running smoothly with no issues.

I believe it was a combination of the fuel flow sender jet (causing sudden expansion inside the sender causing vapour) and by not having a return line to the tank installed.

I will keep monitoring the temps but think it is sorted now. It was definately fuel starvation...

Regards

Jacques

Report
Re: 912ULS EGT overheating

by Roger Lee » 9 years ago

Roger Lee

126 5.13k 4.58k

Hi Jacques,

Glad it seems to be working out.

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell

Report

Page 4 of 4

Start
Prev
1
2
3
4
Next
End

You do not have permissions to reply to this topic.

Related Topics

Title	Category	Replies
912ULS Noise Turning Prop	912 / 914 Technical Questions	15
912uls known weaknesses?	912 / 914 Technical Questions	2
912 UL EGT	912 / 914 Technical Questions	3
912ULS cold start impossible	912 / 914 Technical Questions	5
Putting shims on a 912ULS head	General Tech Discussion	3

Top

© Rotax-Owner.com

Login