Soundproofing the B3030 Cab and found something interesting

[WaxMan]

Bandit, I heard the cheaper sound material gives off fumes. This stuff has no smell. going on the outside anyway. I started off with the vibration damping material very sticky aluminum covered rubber, once stuck on it will never come off. It would be a nightmare tying to get this stuff off. So I'll be the ginny pig and let you know if you should do this or not. I was surprised how heavy duty the aluminum is on the Dynamat extreme.

The way I'm doing it all material will be on the bottom out of site. The only material on top will be Dynamat DynaPad It's just special sound foam with no adhesive This is to replace Kubota's gray pads under the floor mat.

This is a description of the Dynamat DynaPad this will be the ONLY material on top under the Kubota rubber mat. So all three products will be used in combination.
DynaPad is a heavy-duty composite barrier providing maximum acoustical attenuation and excellent thermal insulation. DynaPad utilizes Dissimilar Layer Insulating technology that solves two of the most difficult automotive problems; exhaust system heat and low frequency noise. Easy to install DynaPad can be used in place of carpet pad and is oil and water resistant. Use DynaPad on floors interior firewalls rear decks and in trunks for cool quiet comfort. For optimal results apply DynaPad over Dynamat Xtreme.


I made cardboard patterns first, then cut out the Dynamat extreme then the half inch Dynaliner foam sound absorbing mat using the cardboard patterns. I removed the panel under the seat also, the material is that Kubota uses is nowhere near as dense. It's a real pain to get the old stuff off.
As bad as everything looks now, nothing will show once the panels are back on. I'm glad the 1/2 foam panels are Kubota gray color.
The waffle mat with just a little trimming fits just right as shown in the pictures. I ending up using the 3/8 thick waffle pad. It will be sandwiched between the Dynamat extreme I will put it on the transmission plates under the waffle mount also. The last picture is Kubota's factory foam under the seat it's coming off also and the two step process will be put on that panel also.
Here is a short video. You can hear the sound difference before and after.

http://youtu.be/s7eADA97B94

 

[srs]

WaxMan, wow what a difference using the Dynamat products. Video really shows how much quieter it is. Can you tell us how much material you bought of each, the Extreme and the DynaPad? Great job!

 

[WaxMan]

WaxMan, wow what a difference using the Dynamat products. Video really shows how much quieter it is. Can you tell us how much material you bought of each, the Extreme and the DynaPad? Great job!

I will Stanley, but don't run out and buy it just yet, lets make sure it works, maybe it will produce a sound so low and annoying that after an hour my gums and ears bleed :confused2:
And I have to buy all new panels to put it back the way it was.:thumbdown:

 

[bandit67]

Waxman, nice work. This is exactly what I was planning on doing. I have been trying to decide between Dynamat, Thermo Tec, & FatMat products for this project. I have to believe doing this modification is going to make a huge difference.

I Dynamatted my 01 Superduty crew cab years back. Had to remove the ENTIRE interior for that project, and got it done in a weekend, so this one should be a cake walk compared to that project. Neighbors thought I was crazy with all the seats, carpet, headliner, trim, etc sprawled out all over my garage. I only used the Dynamat on that job, and it made a big difference blocking road noise and the 7.3L engine noise. Had a lot of comments from folks over the years about how much quieter my truck was than their truck with the same motor. So I'm really looking forward to this project.

Keep us posted on your results.

 

[srs]

WaxMan, I think what you're doing will greatly improve the sound quality inside the cab and reduce some of the annoying noise. Will wait and see, thank you again. Stanley

 

[MessickFarmEqu]

you maybe pretty far along with this, but we had a problem on a New Holland where the rubber isolators let the cab move too much, and we replaced them with hockey pucks. The solid rubber of those worked well and compressed with the weight of the cab. Maybe worth a try.

The new replacements to the B3030/3000 are isolated from the factory.

 

[WaxMan]

you maybe pretty far along with this, but we had a problem on a New Holland where the rubber isolators let the cab move too much, and we replaced them with hockey pucks. The solid rubber of those worked well and compressed with the weight of the cab. Maybe worth a try.

The new replacements to the B3030/3000 are isolated from the factory.

Thank you for your suggestion and maybe my next post will make more sense now. I think the most of the cab will be as it was with the original four isolators, the waffle mount is mostly just up and down resting the seat on the HST. It fits just right in that spot with no modifications and the four bolt heads will keep it in place the waffle mount is just to to keep it from metal to metal. But read the next post.

 

[WaxMan]

Do's and don'ts
Ok made a mistake today, well probably made many but this one I know about.
I thought it would be a good idea to put a small strip of the sound deadener on the sides as shown in the first pictures. After all the fenders and the floor bolt together metal to metal.
The Extreme is only 1/16 thick. I thought it would make a nice gasket. But once tighten down it squeezes out and leaves a sticky seal which is just going to get covered with dirt. I don't like it. So I will have to take the two panels back out and remove the side strips. Seems the Extreme is not good under pressure, it's meant to be just on a panel not squeezed. I think it will just keep squeezing out until metal to metal again.

Now I think I should also remove the Extreme on top and below the waffle mount and have the rubber mount be touching the bare metal on top and bottom. At first I thought it would be better with a little more movement, but now I'm not sure? any Idea's? about the Extreme on top and below the waffle mount? Over time it's just going to squeeze out. What do you guys think leave it under and over the mount or remove it.



I like this Daynamat Extreme I can see I'm going to be using a lot of this stuff under the plastic dash, this is where most of the dirt is entering the cab, being blown in from the engine fan. This I knew for years after having the cover off before. Just didn't know how to stop it. This Extreme can cover all the holes. Also around the wires entering the cab.

 

[bandit67]

WaxMan,

I was looking things over today coming up with a game plan. I determined that I shouldn't put anything on the flanges that bolt parts together, as that could allow for some additional movement between the parts, and since the main purpose of sound deadener adhesive sheets is to stop sound resonation through large flat areas, it would be better to allow the metal flange areas to be cinched down tight to one another.

Another area in particular, is the small plate over the transmission hump directly behind the plastic steering panel. Be careful how you install sound deadener on that one because it bolts in 2 different planes, and additional spacing on either plane will cause one set of bolts to not line up upon reassembly. This is the area that you've installed the mat over the tranny hump in your last picture in the above post (#38).

 

[WaxMan]

WaxMan,

I was looking things over today coming up with a game plan. I determined that I shouldn't put anything on the flanges that bolt parts together, as that could allow for some additional movement between the parts, and since the main purpose of sound deadener adhesive sheets is to stop sound resonation through large flat areas, it would be better to allow the metal flange areas to be cinched down tight to one another.

Another area in particular, is the small plate over the transmission hump directly behind the plastic steering panel. Be careful how you install sound deadener on that one because it bolts in 2 different planes, and additional spacing on either plane will cause one set of bolts to not line up upon reassembly. This is the area that you've installed the mat over the tranny hump in your last picture in the above post (#38).

Why could'nt you tell me that yesterday
That next piece bolts to the sides of that hst hump and has the clearance to fit, remember that extreme is only 1/16 thick Kubota has a 1/2 foam piece under that panel.
The holes can also be oblong a little if need be, I think that is a important part to be covered the plate that covers it will also be covered underneath and with the updated foam.