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mr_sperm1 Now Targeting: Rattling Bootlid! 

 

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 Post subject: mr_sperm1 Now Targeting: Rattling Bootlid!
Posted: Tue Feb 28, 2006 9:46 am 
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Time to solve the problem once and for all! :twisted: My bootlid is flexing due to the new sub. There are no rattles if i have the bootlid open and up. as soon as i start to lower the bootlid, the vibrations begin. halfway closed and it's sounds horrible! i've done my searching, but to no avail! the question i'm posing is - has anyone filled their bootlid with something like no more gaps (or similar expanding foamy stuff) to "strengthen" the bootlid and stop it from flexing as much? i'm pretty sure there aren't any major moving parts (only thing i can think of is the key lock in the boot - can live without! and the boot release cable - can't live without!).

i've read all about the flashtac and similar sound deadening products, but don't think that would stop rattles! any other ideas appreciated - if my idea sounds absolutely stupid, tell me! :lol:

 

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Posted: Tue Feb 28, 2006 10:40 am 
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Whats happend is the adhesive used at factory to fix the ribbing to the boot lid had hardended and come away. What you have to do is pick out as much of the old glue as you can then space out the boot skin from the ribbing if no space already there with matches or something similar. Then pump urethane or similar between ribbing and boot skin and let dry before using sub, remove spacers also. Even after doing this you may have rattles coming from the number plate area, if so foam strips can be used to stop this.
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Posted: Tue Feb 28, 2006 11:13 am 
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Remi (Smackdown) filled his bootlid with gap filler. Weighs a bloody ton. As for sound I am not to sure.

 

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Posted: Tue Feb 28, 2006 12:46 pm 
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i didn't need to remove the old adhesive, after a few days it all fell out :D . i used some cheap silicone and it worked a treat!
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Posted: Tue Feb 28, 2006 4:45 pm 
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dont use anything that expands, it can distort your outer skin. Use something that'll give a bit as well....

 

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Posted: Tue Feb 28, 2006 5:13 pm 
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i filled mine with sikaflex 227 all around the rib's of the boot then painted it in KH sound deadener weights lots more but the only vibrations ar from the number plate now
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Posted: Tue Feb 28, 2006 7:05 pm 
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Also liquid nails is good.

 

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Posted: Tue Feb 28, 2006 9:47 pm 
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Silicone is the best bet mate....

Just remember that the vibrations will just move to the next weakest spot and don't bother chasing them 'coz it will drive you nuts trying to fix it. Just do your best to muffle it as much as possible...
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Posted: Tue Feb 28, 2006 9:51 pm 
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thanks for the ideas! i've already siliconed number plate on cause i had a rattle and thought that was it. surprise surprise, it wasn't! i'll have to have a look-see tomorrow night at how much old crap's in there. i've already had a lot come out from when i got the car a year ago. surely there can't be much more left!!

 

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Posted: Wed Mar 01, 2006 8:49 pm 
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yeah i filled mine with expanda-foam... bad move.

just like oldmate said, it rippled the top boot skin, its only really noticible when light is reflected off it.
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Posted: Wed Mar 01, 2006 9:13 pm 
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turn the tunes up more till u carnt hear the rattle

 

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Posted: Thu Mar 02, 2006 8:22 am 
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Be careful if using silicone as some are acidic and may eat into the steel work.
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Posted: Thu Mar 02, 2006 9:46 am 
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xr Rob wrote:
turn the tunes up more till u carnt hear the rattle


that's just the thing... i can't hear the rattle!! but if i stand at the back of the car you can hear it. i donm't want to be like a vk/vl driver with my fulli sik cannon exhawsat and subwoooofa going tump tump down the road, lol!

love the bass, dont' want the rattle!

 

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Posted: Thu Mar 02, 2006 9:47 am 
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quick update: bad news - amp fried itself last night. :(

good news - got new amp 1/2 hour later! :lol: Rewiring at lunch time.

 

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Posted: Thu Mar 02, 2006 10:53 am 
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Just a couple of tips. Using clear silicone works a treat and if you take some time with the caulking gun it can look waaaaaayyyy better than the factory junk they use. (If you don't have a bootlid carpet that is...)(Who doesn't have a bootlid carpet anyway come on GLi owners there $40!!)

For the number plate: remove it, run beads up and down about 3-4cm apart till you get to the other end. Let dry for about an hour. Then reinstall it. This way it won't mark your paint.

 

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