Jump to content
Sign in to follow this  
John Vance

Tire inflation problems with Leakguard tubes

Recommended Posts

I recently installed Desser 400-6 main tires with Leakguard tubes, and am having trouble inflating them.  I have a little pancake compressor with a standard dual air chuck, and have found that I have to reduce supply pressure to just slightly above existing tire pressure to get any air flow.  So if the tire is flat, I have to reduce supply pressure to 15 or 20 psi, then slowly raise it as the tire inflates.  PITA.  Apparently, the valve stems can't overcome line pressure and depress the button in the chuck to get air flowing.  I never had this problem with the cheap tubes.  Any ideas?

Share this post


Link to post
Share on other sites

Never have seen this. If the stem is being compressed straight down at the 6 O'clock position then the weight of the aircraft will squeeze the tube area around the stem and could cause this, but if the stem is at least in the 8 05 4 O'clock position it should not be an issue. Plus 90+ psi of pressure from your compressor should be enough to over come most issues.

Share this post


Link to post
Share on other sites
11 minutes ago, Roger Lee said:

Never have seen this. If the stem is being compressed straight down at the 6 O'clock position then the weight of the aircraft will squeeze the tube area around the stem and could cause this, but if the stem is at least in the 8 05 4 O'clock position it should not be an issue. Plus 90+ psi of pressure from your compressor should be enough to over come most issues.

Roger- I think 90 psi pressure would be enough, but I don't think valve stem on the tube is depressing the button in the chuck to let the air out. 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×