Inner tube stems

[Bob E]

IMHO very few mechanics, even Mooney mechanics, take notice of this issue.  In years past, before I discovered bent stems and just let the shops maintain the aircraft (Clyde Wittenbrook for those who recognize the name), they did excellent work but nonetheless it was impossible to install the straight-stem tubes specified without bending - and straining - the stems.  (Photo)

So after switching to bent stems, before I started mounting tires myself, I didn't realize that the bent stem, when installed properly, does not touch the rim. The shop guys (usually assistants) who do the installation don't realize it either.  If they were willing to install straight stems that look like the photo and not raise questions, then they definitely won't notice if a bent stem touches the rim.

 

[Jim Peace]

5 hours ago, Bob E said:

IMHO very few mechanics, even Mooney mechanics, take notice of this issue. 

Its frustrating to have a little bit of knowledge and ethics in this world...

[kortopates]

IMHO very few mechanics, even Mooney mechanics, take notice of this issue.  In years past, before I discovered bent stems and just let the shops maintain the aircraft (Clyde Wittenbrook for those who recognize the name), they did excellent work but nonetheless it was impossible to install the straight-stem tubes specified without bending - and straining - the stems.  (Photo)
So after switching to bent stems, before I started mounting tires myself, I didn't realize that the bent stem, when installed properly, does not touch the rim. The shop guys (usually assistants) who do the installation don't realize it either.  If they were willing to install straight stems that look like the photo and not raise questions, then they definitely won't notice if a bent stem touches the rim.
 

What kind of tube does your IPC call for- angled stem? I’d be surprised if Mooney spec’s a tube with stem that rubbed against the wheel.


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[Jim Peace]

1 hour ago, kortopates said:

I’d be surprised if Mooney spec’s a tube with stem that rubbed against the wheel.