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J NORRIS
04-04-2011, 03:53 PM
I have searched for the info on motor box insulation replacement, and could not find anything. Need help finding the thread. I know I have seen info on it.

Or to answser my question: Has anyone used Dynamat car stereo dampening material?
I was thinking of using this and putting the regular insulation on top of the dynamat. Anybody done this and what are the results? My motor was plenty loud in the boat last year and want to be as quiet as possible. Oh and I broke one of the plastic pieces that go over my gas shock, anybody got an extra? Or know where to get one of these? The piece with four prongs on it.

65477
65478

BIGBADBLUE
04-04-2011, 04:02 PM
Go to Overtons and search insulation ... you will find it I did mine last year

The shocks are a NAPA part and can be found in he FAQ's

bobx1
04-04-2011, 04:03 PM
Try this one out:

http://www.mastercraft.com/teamtalk/showthread.php?t=39193&highlight=insulation

J NORRIS
04-04-2011, 04:09 PM
Thanks for the link Bobx1
BigBadBlue, How much did you end up spending, if you don't mind me asking.

BIGBADBLUE
04-04-2011, 05:02 PM
Thanks for the link Bobx1
BigBadBlue, How much did you end up spending, if you don't mind me asking.

Total including extra adhesive spray and extra metal tape it was like $150

JeromeM
04-04-2011, 05:10 PM
Great timing on this thread, I was looking for the same info. Just ordered 8' of the 1" foil backed reinforced foam from McMaster Carr. $121.76 + shipping, pretty good for a motor box that will be quieter and look MUCH better.

JeromeM
04-04-2011, 05:34 PM
Scratch that, just got an e-mail from McMaster Carr saying they don't ship to Canada anymore "due to the ever increasing complexity of United States export regulations". That sucks :(

Barefooter92
04-04-2011, 10:14 PM
Just bought mine in ebay Friday night and received it today. 40sqft for $40 delivered. Now waiting for the boat to come home from storage.

http://cgi.ebay.com/ebaymotors/EZ-Cool-Automotive-Heat-and-Sound-Insulation_W0QQcmdZViewItemQQ_trkparmsZalgoQ3dLVIQ 26ituQ3dUCIQ26otnQ3d1Q26poQ3dLVIQ26psQ3d63Q26clkid Q3d8229080011641165013QQ_trksidZp5197Q2em7QQcatego ryZ46094QQitemZ230600579688

thatsmrmastercraft
04-05-2011, 01:29 AM
Just bought mine in ebay Friday night and received it today. 40sqft for $40 delivered. Now waiting for the boat to come home from storage.

http://cgi.ebay.com/ebaymotors/EZ-Cool-Automotive-Heat-and-Sound-Insulation_W0QQcmdZViewItemQQ_trkparmsZalgoQ3dLVIQ 26ituQ3dUCIQ26otnQ3d1Q26poQ3dLVIQ26psQ3d63Q26clkid Q3d8229080011641165013QQ_trksidZp5197Q2em7QQcatego ryZ46094QQitemZ230600579688

Looks pretty good and the price is right. What do you plan to use for adhesive?

Barefooter92
04-05-2011, 08:29 AM
Looks pretty good and the price is right. What do you plan to use for adhesive?

3M spray adhesive. Also bought the Goof Off to clean off any existing adhesive. This is a bit thinner than TEX but end result should look like his and protect better than the factory foam. I was worried that TEX's would hold water. This stuff is closed cell and should not be an issue in the marine application.

Hey TEX what tape did you use on your seams?

supturb89
04-05-2011, 09:19 AM
Just bought mine in ebay Friday night and received it today. 40sqft for $40 delivered. Now waiting for the boat to come home from storage.

http://cgi.ebay.com/ebaymotors/EZ-Cool-Automotive-Heat-and-Sound-Insulation_W0QQcmdZViewItemQQ_trkparmsZalgoQ3dLVIQ 26ituQ3dUCIQ26otnQ3d1Q26poQ3dLVIQ26psQ3d63Q26clkid Q3d8229080011641165013QQ_trksidZp5197Q2em7QQcatego ryZ46094QQitemZ230600579688

Good find Barefoot....added to my list which keeps getting longer.

J NORRIS
04-05-2011, 12:18 PM
Barefooter92 how do you like the insulation? How thick is it?
Did you check out the products on McMaster Carr? And why did you not go with their product?
How does it compare to the sound rating on Mcmaster Carr products.

Barefooter92
04-05-2011, 01:45 PM
Well my Father-in-law builds high end street rods and uses this in the firewall, floor, and well everywere. It is easy to work with looks great and protects better than any other product designed for the same. Plus it will not hold water. It is thin (about 3/16-1/4) but designed for this type of application. If you wait a season I will report back with its performance. I will be installing it at the end of the month. It has to work better than the factory foam!

macattack
04-05-2011, 02:49 PM
Another good thread ref subject...

http://www.mastercraft.com/teamtalk/showthread.php?t=30120&highlight=engine+insulation

Table Rocker
04-07-2011, 12:45 PM
Oh and I broke one of the plastic pieces that go over my gas shock, anybody got an extra? Or know where to get one of these? The piece with four prongs on it.
http://www.mastercraft.com/teamtalk/attachment.php?attachmentid=65477
I am sure I have an extra. PM me with your mailing address and I will mail one out to you.

J NORRIS
04-07-2011, 04:20 PM
Table Rocker, PM sent to you.

Table Rocker
04-11-2011, 04:12 PM
Table Rocker, PM sent to you.

I mailed it out today.

Lars
04-18-2011, 11:24 PM
Hey table rocker, I broke off the parts inside the piece that the 4 prong thing slides into on my motor box cover. Do you have any of those that you thread onto the rod?

Table Rocker
04-19-2011, 11:04 AM
Hey table rocker, I broke off the parts inside the piece that the 4 prong thing slides into on my motor box cover. Do you have any of those that you thread onto the rod?
I do, PM your address and I will mail it to you.

J NORRIS
04-19-2011, 02:22 PM
I ordered the 1" skinned adhesive backed foam from McMaster-Carr today.
Scraping the glue off was loads of fun!:(

Barefooter92
05-01-2011, 10:50 PM
Finished mine this weekend. Here is my during and afters. You all know what the before looked like. The Goof Off was a waste of time so I used Mineral Sprits and lots of it! Hated to spray 3M on the clean cover but the end result was perfect!

66105

66106

J NORRIS
05-09-2011, 06:35 PM
Finished the insulation on the motor box. I need a new blade to finish trimming a couple of the edges, only had one razor blade and it dulled pretty quick. I fired up the boat in the driveway, and what a difference it makes. I could only hear the exhaust coming out the back. Can't wait to get her wet this year. Baseball commitments and wife away on storm duty, (tornadoes), holding me back from starting my season.

Barefooter92
05-09-2011, 10:45 PM
JNorris

Looks good. How thick is that stuff?

I see you did not trim out the consloe above the cup holders, why? Mine looked like a vent so I ended up cutting it out again and reinstalling the screen.

BNIROOSTER
05-10-2011, 07:03 AM
I have searched for the info on motor box insulation replacement, and could not find anything. Need help finding the thread. I know I have seen info on it.

Or to answser my question: Has anyone used Dynamat car stereo dampening material?
I was thinking of using this and putting the regular insulation on top of the dynamat. Anybody done this and what are the results? My motor was plenty loud in the boat last year and want to be as quiet as possible. Oh and I broke one of the plastic pieces that go over my gas shock, anybody got an extra? Or know where to get one of these? The piece with four prongs on it.

65477
65478

I have used the dynamat to insulate the motor box. I have two alpine 10" subs in the same motor box as you do and the dynamat added deeper bass and quieted the engine noise.

J NORRIS
05-10-2011, 11:24 AM
JNorris

Looks good. How thick is that stuff?

I see you did not trim out the consloe above the cup holders, why? Mine looked like a vent so I ended up cutting it out again and reinstalling the screen.

1" Thick, I just cut out circles for the cup holders and reinstalled them. No vent on my motor box.

Starshack
05-10-2011, 11:26 AM
Looks great - I ordered material today - which 3M adhesive did you use?

J NORRIS
05-10-2011, 11:34 AM
Looks great - I ordered material today - which 3M adhesive did you use?

I used the 3M spray on adhesive, the insulation has "stickyback" on the backside of it. Pull of the skin off the back and it's like a sticker, but I sprayed the box with the 3M spray adhesive too, before applying it to the box.

Barefooter92
05-11-2011, 08:18 AM
Starshack: I used 3M 77 on mine. Be sure to wait the 30sec to let it tack up. I sprayed both the foil and the motor cover.

woobiedmd
05-11-2011, 08:38 AM
Did you then put carpet on top of it? Is that a fire hazard if you did?

Starshack
05-11-2011, 07:24 PM
Thanks for advice on adhesive.