Engine hatch insulation suggestions

[1BadTundra]

I peeled off my original hatch foam carefully, not to tear it.
Laid on a layer of KillMat, then applied contact cement
Reapplied the factory foam back on top of the KillMat. Then applied spray adhesive
Finally, I added this sound deadener over the OEM foam.
She's quiet.
Heres a link to the top foam. Amazon.com

 

[jon__house]

Follow the instructions --- a lot of people skip over the... "apply adhesive to both surfaces and allow to get tacky before sticking together"

I will for sure!

do you think it would be worth adding some aluminum backed dampening material to the fiberglass then gluing the foam over top of that? I have a box laying around and while I’m working on it I thought I might help. There seems to be a lot of variations and results out there for reducing engine noise

 

[jon__house]

I peeled off my original hatch foam carefully, not to tear it.
Laid on a layer of KillMat, then applied contact cement
Reapplied the factory foam back on top of the KillMat. Then applied spray adhesive
Finally, I added this sound deadener over the OEM foam.
She's quiet.
Heres a link to the top foam. Amazon.comView attachment 219900View attachment 219900View attachment 219901

I just saw this! Thank you for the tips. I plan on doing something similar!

 

[1BadTundra]

I just saw this! Thank you for the tips. I plan on doing something similar!

It's totally worth it.

 

[Btsnhos]

Have you been out on the water since you installed the foam? Any worries about the heat inside the engine compartment? I am in the middle of laying the killmat now, I might look at covering the killmat with the foam since the 195's only have a piece of foam that does not cover the entire engine cowling. What thickness of killmat did you go with?

 

[mtudb24]

Anybody ever use DynaMat or DynaCore? Used the DynaMat on many of my old Square body chewy restorations and worked very well. Looks like they have a marine version as well.

Boat & Marine Sound and Vibration Control | Dynamat

Reduce unwanted noise and vibrations on your boat. Dynamat products efficiently mitigate bothersome noises on the water.

www.dynamat.com

 

[FSH 210 Sport]

Good thread here on sound proofing and sound proofing materials

https://jetboaters.net/threads/fsh-210-soundproof.40102/

 

[MilesPrower]

Anybody ever use DynaMat or DynaCore? Used the DynaMat on many of my old Square body chewy restorations and worked very well. Looks like they have a marine version as well.

Boat & Marine Sound and Vibration Control | Dynamat

Reduce unwanted noise and vibrations on your boat. Dynamat products efficiently mitigate bothersome noises on the water.

www.dynamat.com

I bought a couple sheets of 1'' DynaCore (after removing the stock foam after it started to fall off and melt onto the engine). I haven't installed the DynaCore yet. Maybe Friday.

Right now, I'm thinking I'll cover (a) the underside of the engine hatch with the first sheet (which is just barely bigger than the hatch), then cut up the second sheet to cover (b) the undersides of the two lockers that flank the engine hatch, and (c) the firewall between the engine bay and cockpit.

 

[1BadTundra]

Have you been out on the water since you installed the foam? Any worries about the heat inside the engine compartment? I am in the middle of laying the killmat now, I might look at covering the killmat with the foam since the 195's only have a piece of foam that does not cover the entire engine cowling. What thickness of killmat did you go with?

I used the 60MIL Killmat since I had it in my shop already from doing my truck. I have not been out yet, if it ever stops raining and the temp gets over 65 at the same time, I could get it out for a shake down ride.
The engine heat shouldn't be an issue as there is space between the foam and the engine components. I have a SensorPush Sensor in that compartment, I'll let you know how hot it gets under there. I have the twin 1.8L engines, and the factory foam shows no signs of heat wear or damage.

 

[jon__house]

I used the 60MIL Killmat since I had it in my shop already from doing my truck. I have not been out yet, if it ever stops raining and the temp gets over 65 at the same time, I could get it out for a shake down ride.
The engine heat shouldn't be an issue as there is space between the foam and the engine components. I have a SensorPush Sensor in that compartment, I'll let you know how hot it gets under there. I have the twin 1.8L engines, and the factory foam shows no signs of heat wear or damage.

This rain is a joke! My boat is in my slip on the water so I’m debating hauling it home or possibly just the hatch to attach the foam back. It’s a must because it’s quite loud right now with the factory foam falling off.

Has anyone removed their engine hatch and is it a one man job?