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Re: Seating a pad

Author: Paul Aviles
Date: 2014-03-15 03:41

First off, (you probably did this but I'm just making sure) you should let the pads develop a good crease overnight before taking the horn for a test drive (there are seating gizms available to facilitate this....reverse spring design).

Once the pads are "seated," a good positive pressure AND suction test are the best methods for checking the final work. Personally I find the suction test to be a better judge of the final product. It should hold a seal (like a coke bottle) for at least 5 seconds or ideally until you release an end or lift a finger. Positive pressure will help suss out a problem with the crows foot or whether the "Ab/Eb" pad has enough spring tension, but otherwise it's just not accurate enough.

Think about it, as you blow into the horn are you going to "feel" a very slow leak?

Once you determine there is is slow leak (like yours), careful use of a "feeler gauge" at each quadrant of each pad should reveal the culprit.

..............Paul Aviles

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Author

Date

Seating a pad new

TJTG

2014-03-15 00:36

Re: Seating a pad

Paul Aviles

2014-03-15 03:41