WingnutWick
Well Known Member
Hello,
Troubleshooting a few gripes on the lady?s new RV-6A with an O-320 H2AD and one of them is that the throttle cable seems to be binding a bit. This issue occurred before we purchased the plane and was fixed with new cables for mixture and throttle. Throttle was smooth. I had the cowling off putting in new plugs and when I put it all back together the throttle seems to have gotten a little stiff again with a ?gritty? ?grinding? feeling and more force than normal needed to move the throttle. A couple times the cable bent just in front of the throttle handle a couple times. Thankfully it wasn?t crimped when that happened.
I pulled the cowling back off and that helps make it a little more smooth but still a little tighter than normal, albeit no gritty feeling. Of note, her quadrant is the lever type not the push pull which requires the throttle and mixture to be routed around the left side of the carb and bend around the front of the carb and backwards connecting on the right side of the carb. I?m sure I would have no issues with a push pull setup as that would be a direct straight connection.
When I put on the cowling they do get pushed up a bit. I?m assuming this is causing the extra friction to make the gritty feel.
My questions are:
1. Looking for general insight from anyone with this setup where you have to route around the front to make throws in the correct direction.
2. I was thinking of shortening the throttle and mixture cables to hopefully bring it closer to the engine and away from the cowling but I am not sure how much bend I can induce? Thoughts?
3. Anyone know of any smart ways to get around routing around the front of the carb?
Any other insight is warmly welcome!
Thank you!
Charles
Troubleshooting a few gripes on the lady?s new RV-6A with an O-320 H2AD and one of them is that the throttle cable seems to be binding a bit. This issue occurred before we purchased the plane and was fixed with new cables for mixture and throttle. Throttle was smooth. I had the cowling off putting in new plugs and when I put it all back together the throttle seems to have gotten a little stiff again with a ?gritty? ?grinding? feeling and more force than normal needed to move the throttle. A couple times the cable bent just in front of the throttle handle a couple times. Thankfully it wasn?t crimped when that happened.
I pulled the cowling back off and that helps make it a little more smooth but still a little tighter than normal, albeit no gritty feeling. Of note, her quadrant is the lever type not the push pull which requires the throttle and mixture to be routed around the left side of the carb and bend around the front of the carb and backwards connecting on the right side of the carb. I?m sure I would have no issues with a push pull setup as that would be a direct straight connection.
When I put on the cowling they do get pushed up a bit. I?m assuming this is causing the extra friction to make the gritty feel.
My questions are:
1. Looking for general insight from anyone with this setup where you have to route around the front to make throws in the correct direction.
2. I was thinking of shortening the throttle and mixture cables to hopefully bring it closer to the engine and away from the cowling but I am not sure how much bend I can induce? Thoughts?
3. Anyone know of any smart ways to get around routing around the front of the carb?
Any other insight is warmly welcome!
Thank you!
Charles