As i'm getting my front bumper rechromed i decided to buy a new front bumper top. It was now time to check what was going on inside the old rubber bumper top making it look 'bumpy'. As i never seen pictures of what was inside the bumper rubber i decided to sacrifice this one.
Here is what i found:
I decided to cut it open from the back side. At first I decided to make only one cut (the one at the bottom of the picture). I could them pop the rear part off but was having a hard time with the front part as the rubber part didn't want to come loose from the metal stip. I noticed that the metal stip had holes in it at about every inch. So i decided to make another cut about the holes. Now a could pop the front part and reveal the metal stip...
The rubber top was stored dry at the end of november. After opening it up, 2 areas where still wet... From where is this water coming from???
If you look at the pictures you will notice that the parts that are rusted are mysteriously near the bolts that fasten the rubber top to the bumper...
My guess is that humidity and water get in the bumper by the surrounding of the bolts. This area doesn't offer much of a seal...
I'll sure seal up this area on the new bumper top...
Marc-André
70 914-6 conversion 3.0L Webers