I bought a set of intake manifolds and rubber boots off ebay recently and was playing around and put one of the boots on the intake. This was after I noticed that the insides of one side of the intake boots appeared to be damaged. I was working under the assumption that perhaps the intake manifold was causing this damage to the boots as the other sides appeared to be okay. Now, I have the boot on the manifold and it is reluctant to come off. I am also reluctant to cause more damage to the boots.
Would dropping it in boiling water be safe?
Also, does anyone know if these are rubber or polyurethane?
Thanks