View Poll Results: How good is the idea?
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Good Idea or Bad!?
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Good Idea or Bad!?
So I have a mx-3 and as all imports there is more plastic then metal...
so my trunk use 2 rattle like a mother.... i dynamated it and it helped a bit but not fully... here is my idea and you tell me good or bad?
Rip off all the plastic in the trunk to expose the dynamat and maybe put another layer or 2 down of it... then just fiberglass over the entire thing or use bondo or something to make it all look nice and smooth as if it was almost stock. Then just paint over it with a nice black or something.
There are a couple of problems im seeing with this though...
1: The wires that run to all the lighting and what not will be covered so if something was to happen to a light and i had to replace the wiring i would be screwed.
2: Spare tire will be gone, but i dont really care for that...
The way im thinking is that it will stop all the rattle from the back since there is no plastic left... It wont stop the rattle from the hatch but belive it or not there is bearly any there anyways.
good? bad? other???
so my trunk use 2 rattle like a mother.... i dynamated it and it helped a bit but not fully... here is my idea and you tell me good or bad?
Rip off all the plastic in the trunk to expose the dynamat and maybe put another layer or 2 down of it... then just fiberglass over the entire thing or use bondo or something to make it all look nice and smooth as if it was almost stock. Then just paint over it with a nice black or something.
There are a couple of problems im seeing with this though...
1: The wires that run to all the lighting and what not will be covered so if something was to happen to a light and i had to replace the wiring i would be screwed.
2: Spare tire will be gone, but i dont really care for that...
The way im thinking is that it will stop all the rattle from the back since there is no plastic left... It wont stop the rattle from the hatch but belive it or not there is bearly any there anyways.
good? bad? other???
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Originally Posted by gti_stu
x2
Bondo is like putting cheap wax on a lambo, do it right the first time, Fibergalss would be the best bet, but as above its smells like crap
Bondo is like putting cheap wax on a lambo, do it right the first time, Fibergalss would be the best bet, but as above its smells like crap
now i gotta figure out some other stuff i guess...
So, what exactly is the problem? Is it interior panels rattling while you listen? or is it rattling outside?
if it's inside panels, then you should looking into ways of applying pressure to the panels, maybe some form of light, soft, foam batting, like fluff or something to fill the spaces and cause pressure between the "frame" of your trunk and the panels that snap/screw onto this "frame".
If it's outside, then you should try some extra weather stripping on top of your oem stripping and/or adjusting your trunk latching system that is pulls the trunk down tighter into the oem seals.
I've used spray foam for these types of problems, but you have to be extremely careful using it and be sure to get the low density stuff that it doesn't break panels.
if it's inside panels, then you should looking into ways of applying pressure to the panels, maybe some form of light, soft, foam batting, like fluff or something to fill the spaces and cause pressure between the "frame" of your trunk and the panels that snap/screw onto this "frame".
If it's outside, then you should try some extra weather stripping on top of your oem stripping and/or adjusting your trunk latching system that is pulls the trunk down tighter into the oem seals.
I've used spray foam for these types of problems, but you have to be extremely careful using it and be sure to get the low density stuff that it doesn't break panels.
Administrator
Joined: Feb 2006
Posts: 16,860
Our Ford Probe used to rattle pretty bad with the 15s in it. What I did was I removed all the rear panels and carpeted the back of them with trunk liner. After I put them back in, the carpet kept them from rattling on the metal and eachother. Worked for me and it was cheap enuf. 
yeah i was thinking that if you took out the plastic and put dynamat on it then put it back in then it would hep stop it from rattling, also when you did the hatch did it cut down on the exhaust note, cuz i have to run a silencer in my muffler just to keep me sane from the loud exhaust.
You're never going to stop the rattles once they start 
Not sure that fibreglass is the way to go but what would be the plan if you needed access? Are the panels going to be removable? What if you get into a car accident? Insurance will not pay to re-do the interior in that fashion and you'll have to do it all over again...
Not sure that fibreglass is the way to go but what would be the plan if you needed access? Are the panels going to be removable? What if you get into a car accident? Insurance will not pay to re-do the interior in that fashion and you'll have to do it all over again...
Just to add my experiences if it helps, as I had a beloved '89 Probe (old, dear Matilda...):
- Spray foam works nicely in certain applications (think nooks, crannies and panel spaces) and it's not too expensive
- Ashphalt spray/undercoater works in some ways too. It may smell though. It adds weight which can help with flimsy plastic panels
- Try high tack/industrial contact cement and rubber matting. Much cheaper than Dynamat (etc. brands) and can be pretty effective if done right.
- As above, rubber or butly stripping (bike tires?) can be wedged, fitted, stretched (etc.) in between rattling parts
- I have heard of concrete being poured as a base. Pretty much an SPL thing. I don't think I need to go into details on this one...it pretty much makes fun of itself...
Good luck on the "rattle hunting". Let us know how you make out.
- Spray foam works nicely in certain applications (think nooks, crannies and panel spaces) and it's not too expensive
- Ashphalt spray/undercoater works in some ways too. It may smell though. It adds weight which can help with flimsy plastic panels
- Try high tack/industrial contact cement and rubber matting. Much cheaper than Dynamat (etc. brands) and can be pretty effective if done right.
- As above, rubber or butly stripping (bike tires?) can be wedged, fitted, stretched (etc.) in between rattling parts
- I have heard of concrete being poured as a base. Pretty much an SPL thing. I don't think I need to go into details on this one...it pretty much makes fun of itself...
Good luck on the "rattle hunting". Let us know how you make out.
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thanks for all your input i read but didnt post back.... bad 
the reason for the fiberglass idea in the trunk was also for a really nice look... i have alot of dreams for the car and i just think carpeting will look out of place...
I think im going to do the fiberglass trunk eventually... maybe this summer or something...
only reason for that is to have a really nice set up with no rattle... cus i'd just screw right to the frame o the car... but i need to figure out pannels and access and all that stuff....
the other thing is 1 of the pannels in the trunk holds the speaker so thats another thing to think about lol...
But thanks for all the input <3
the reason for the fiberglass idea in the trunk was also for a really nice look... i have alot of dreams for the car and i just think carpeting will look out of place...
I think im going to do the fiberglass trunk eventually... maybe this summer or something...
only reason for that is to have a really nice set up with no rattle... cus i'd just screw right to the frame o the car... but i need to figure out pannels and access and all that stuff....
the other thing is 1 of the pannels in the trunk holds the speaker so thats another thing to think about lol...
But thanks for all the input <3
0 Watt CAFz'r
Joined: Feb 2008
Posts: 8
hmmm, I know exactly what you are talking about. I have a 2nd gen probe myself, and all parts rattle like its their full time job. I dont even have a sub in yet. Anyways, I say bad Idea. Fiberglass is actualy pretty complicated, and will take alot of skill for a large piece like that. Not to mention, it will have ot be done outside the car, otherwise your car is gunna wreak. Also, by permanetly making something like this you are blocking access. I would say, make a mold outside of the car, and have it in sections, so you can take it apart/out if neccessary. But then you are dealing with gaps. Avoid bondo bc it will look like poop.
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