Re: Carb Float Bowl Breather/Overflow
by Roger Lee » 3 months ago
I'd replace both sets of floats. 1/10th of a gram is too close and the scale could be off that much. I think if it's not the floats then maybe the brass float armature height is off. Easy to check and fix if it were the problem.
My theory is to never leave a stone un-turned because sure enough that will be the issue. If someone at your field has some floats you may be able to borrow them for a quick test.
Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell
Re: Carb Float Bowl Breather/Overflow
by Sean Griffin » 3 months ago
I have just read a thread on MS floats, in this Forum, where the commentary on this product was not good.
Re: Carb Float Bowl Breather/Overflow
by Sean Griffin » 3 months ago
New floats ordered (no finical assistance from Rotax).
I record the new floats weights, for comparison with in use weighing.
Re: Carb Float Bowl Breather/Overflow
by Jeffry Stetson » 3 months ago
Roger Lee wrote:I'd replace both sets of floats. 1/10th of a gram is too close and the scale could be off that much. I think if it's not the floats then maybe the brass float armature height is off. Easy to check and fix if it were the problem.
My theory is to never leave a stone un-turned because sure enough that will be the issue. If someone at your field has some floats you may be able to borrow them for a quick test.
My new "R" floats from October 21 started out heavier than the ancient wrinkled ones they replaced. As of this year, they sum to 6.42 gm. And yes, as soon as they were "upgraded" there were issues with fuel venting. With the airbox, this is mostly hidden as the overflow gets fed right back into the engine. A clue is that it won't start well with choke "on", being already too rich from gas droolings.
Re: Carb Float Bowl Breather/Overflow
by Roger Lee » 3 months ago
The new floats do weigh about 6.3 - 6.4 grams.
Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell
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