105 high needle lost in flight.

[crf69]

Is it a good idea to slightly loctite this needle seat........granted i get none of it into the carb.

i should have checked it but was too late. autoed safely.

any input much appreciated!!!

[dominator]

I check my needles when I refuel. I've found a few coming loose as well. Idk if loctight will hold because of the fuel and I don't want to risk clogging the carb

[nynextel88]

I usually just check the needles when I'm refueling. I wouldn't use loctite.

[crf69]

i will check more often. good thing my reg didnt pop off too.


thanks.

[mqowen]

Originally Posted by dominator

I check my needles when I refuel. I've found a few coming loose as well. Idk if loctight will hold because of the fuel and I don't want to risk clogging the carb

Agree. I don't think it would be a good idea.

[ticedoff8]

Did you loose the needle and the needle seat?

If so, I would definitely Loctite the "needle seat".
And, I might use red instead of blue.
I don't have (and never had) that problem, so this is just my suggestion.

However, if the needle is backing out of the needle seat, I would check the O-ring and see if it is worn or torn.
I would also check the retention spring to see if it has "sprung" and not clicking solidly into the knurled detents on the needle's shaft.

I would not add Loctite to the needle's threads

[Steve Graham]

My entire carb got spit out of the case intake one day

[crf69]

Originally Posted by Steve Graham

My entire carb got spit out of the case intake one day

lol

[mqowen]

Originally Posted by Steve Graham

My entire carb got spit out of the case intake one day

That's a definite forced landing. I've had my regulator needle assy come loose on occasion. In which case engine might die or continue to run erratically.

[Four Stroker]

There is a detent spring thing and an O-ring. If the needle is moving something ain't right. Also extreme vibration can unscrew needles.

I spat out the idle screw from a YS FZ63S the other day - old O-ring.

[lwnemesis]

Almost lost my high speed needle on my 105 yesterday. Noticed fuel dripping from the heli in a hover. Landed it and saw the needle loose. Used needle nose pliers to tighten it up and off I went again. Never had this happen on any other engines I have ever used and I have used many. This engine in only on its 5th tank from new.

[Kap'n Krunch]

doesn't os state in the manual for the 105 they use locktite on the idle needle

besides the retention springs should hold the needle in place or it would be going rich as you were flying

[lwnemesis]

what retention springs? you mean the detent spring? Its only there to hold the actual needle. What unscrewed for me was the entire assembly going back to the intake nipple.