They are less than a $1 each,why would you ever reuse them ?? :roll:
Now! Ladies and gentlemen, this is why you replace the darn things every time the injectors are removed. After they are "squished" when first installed new they don't spring back when removed. If used a second time they may (probably) not seal correctly. This lets carbon into the injector well. A stuck seal is reletavely easy to fix but if the carbon leak is bad enough the threads can gall during injector removal ruining the head.Seals can be reused if formed back to their origional shape. I made a tool to go in an Arbor press and press them back into their origional shape. I have reused some seals many times without a leak.