door seals

rsporsche

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hey guys, what have you found to be the best way to trim down door seals (the cut at the funny shaped piece)? there has to be a better way than a lot of strokes with a razor knife.
 
not following you Chris ... i was talking about cutting them down / making them shorter - they are both about an 1" or so too long.
 
i can believe that some things have to slim down. i had the rubber on one door, but hadn't been shortened to install the 'funny' shaped piece and the door would not close. i think it had something to do with the rubber near the hinges being in the wrong position, interfering with closing.
 
I thought you meant too thick, I have used snips or utility knife
right about now, i wish i had a big guillotine paper cutter. chop it off clean. might try using a serrated bread knife (a very sharp one) ... nice and thin and one sided so the side i want to preserve should come out straight. i think i will give it a whirl on the first 1/2" so i can save a little space for the final cut.
 
How about pipe shears? They typically have a large jaws that hold well.

Never tried it myself, so it's just a first guess how I would approach it. Try on an old part first?
 

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For cuts like the one you describe, I use a small, very sharp hatchet hit sharply with a rubber mallet on a wood bench. Cuts come out very clean.
 
Not on my BMW but what i used on trimming rubber is to heat a razor knife with mapp gas and slice. The balde loses its temper after 2-3 reheats but it can give you a very precise cut. I did this on my body colored running boards on my F250. sorry to not have photos of the process
 

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i thought about a heated knife ... i trimmed one with the serrated bread knife and it worked well. i cut the last bit with a really sharp japanese kitchen knife (thin blade). the cut looked very good - no jagged edges or roughness. as long as the blades are very sharp, it works quite well. i use my kitchen knives every day ... so they all stay very sharp.
 
i thought about a heated knife ... i trimmed one with the serrated bread knife and it worked well. i cut the last bit with a really sharp japanese kitchen knife (thin blade). the cut looked very good - no jagged edges or roughness. as long as the blades are very sharp, it works quite well. i use my kitchen knives every day ... so they all stay very sharp.
I used this little guy. Replaceable blades are a little pricey and they are dull after the third cut but work excellent
 

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