Prop line interference

[Craig]

I just hung my engine yesterday. It is a TMX IO-360 constant speed, installed in an RV-8.

I have a clearance issue with the prop line and engine mount. There is only about 1/16 inch clearance between the two. Here is a picture, not a great angle on it, but you can see the prop line and engine mount just below and to the left of the middle of the dipstick tube:



Has anyone else had this problem, and what would you do about it?

[JonJay]

but nobody has answered your post yet, so...you might consider replacement with a flexible line. You could then route it where you wanted to.
I believe that is a stainless line and bending it might prove to be difficult to do and still keep it's total length and orientation correct but maybe someone else with that experience can help you.

[L.Adamson]

Originally Posted by JonJay

but nobody has answered your post yet, so...you might consider replacement with a flexible line. You could then route it where you wanted to.
I believe that is a stainless line and bending it might prove to be difficult to do and still keep it's total length and orientation correct but maybe someone else with that experience can help you.

And then I've heard that flexible lines can lead to prop surging. This subject came up with a group of RVers the other day, when I was discussing prop governors. So as to fact, I don't know.

L.Adamson --- RV6A

[dedgemon]

RV-9A, O-320 from Aerosport, Flexible prop governor oil line (also from Aerosport). No surging problem in 400 hours. The only surging issues I've heard of of late has been with certain versions of the Jih..... (however you spell it) prop governors.

The flexible line can be routed under the mount and avoid the clearance problem.

[odlee]

They are very responsive to any questions or problems that arise with their engines. My line is close, but not that close, RV 7 & TMXIO 360 with c/s and horizontal induction.

Good luck.
David

[L.Adamson]

Originally Posted by dedgemon

The only surging issues I've heard of of late has been with certain versions of the Jih..... (however you spell it) prop governors.

I have a Jihostroj (made in Germany) governor that was produced for MT- Propeller back in 2003. It works just great. Later on, MT governors were produced by someone else, but I no longer remember the particulars on the subject.

L.Adamson

[JonJay]

Originally Posted by L.Adamson

And then I've heard that flexible lines can lead to prop surging. This subject came up with a group of RVers the other day, when I was discussing prop governors. So as to fact, I don't know.

L.Adamson --- RV6A

Flexible line....

[Craig]

Thanks for the thoughts.

It looks like I am the first that this happened to.

I'm exceptionally lucky that way.

[az_gila]

Originally Posted by JonJay

Flexible line....

...good teflon line per Lycomings SI.

Perhaps the surging mentioned was due to lower quality lines?

The TSO specifics for the lines and the lengths is here - page 6 of the PDF....

http://www.lycoming.textron.com/supp...dfs/SI1435.pdf

gil A - in Junction, TX - finally got out of Houston VFR, Coopers BBQ is good...

[drill_and_buck]

Hi Craig:

I have a similar situation on my TMX0360. This item is on my punch list to review. One thought was to put an Adel clamp on the line, another on the mount, and tie the two together. Not sure if this would help or hinder the situation.

I have just about 5/32 clearance between the line and the mount.

A good item for an A&P to review.

Let me know what your final solution is and I will do likewise.





Mike Draper
RV-8 TMX0360 CS
N468RV