Engine Compartment Sound Absorption Material
- Cliff Hanson
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Engine Compartment Sound Absorption Material
What material was used in the engine compartment on the rear horizontal shelf behind the engine, if any, on a "C"?
Cliff Hanson
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Re: Engine Compartment Sound Absorption Material
Cliff, Your car is obviously a Karmann so it should have a one piece woven mat with a thin coating on the top surface. The material is essentially the same as what's in your trunk but with a coating.
- Cliff Hanson
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Re: Engine Compartment Sound Absorption Material
Rainer, Is the coating similar to the dual layer material used on the side panels (see previous photo) that is attached over the woven material, like the rear panel (I don't have a photo) in the engine compartment?Rainer Cooney wrote:Cliff, Your car is obviously a Karmann so it should have a one piece woven mat with a thin coating on the top surface. The material is essentially the same as what's in your trunk but with a coating.
BTW, how could you tell it was a Karmann?
Cliff Hanson
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Re: Engine Compartment Sound Absorption Material
"BTW, how could you tell it was a Karmann?"
Good question; Rainer, please tell us. I'm still learning.
Good question; Rainer, please tell us. I'm still learning.
- C J Murray
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Re: Engine Compartment Sound Absorption Material
I think he saw the metal tabs that are holding the insulation at the bottom.
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Re: Engine Compartment Sound Absorption Material
CJ is correct. Karmann used a hardboard paper insulation with a jute backing that was held in with the tabs. Reutter used an embossed asphalt paper insulation that was glued in . To make the missing piece and finish the job use some Mercedes Benz " anti-squeek" and coat it with either Wurth SKS or Winzer GGU waterbased undercoating. This can be thinned up to 10% with water to get it smooth.
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Re: Engine Compartment Sound Absorption Material
So, what is a Ruetter supposed to have on that horizontal rear shelf?
Phil Planck
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Re: Engine Compartment Sound Absorption Material
Rainer-What supplier has the MB material? Does the firewall, side walls, rear wall, and shelf all get the same stuff and the same thickness?
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Re: Engine Compartment Sound Absorption Material
Do you think this is why Karmann cars (like mine!) got much more rusty in the engine compartment than Reutter ones? That jute stuff just holds moisture.Rainer Cooney wrote:CJ is correct. Karmann used a hardboard paper insulation with a jute backing that was held in with the tabs. Reutter used an embossed asphalt paper insulation that was glued in .
Of course, the jute and hardboard engine insulation wasn't available (to my knowledge) when I restored that part of the car 5-6 years ago; I had to go with the Reutter-style stuff from Stoddard.
Preston Brown
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Re: Engine Compartment Sound Absorption Material
Mercedes insulation can be had at a Mercedes dealer. Part # 000 983 29 91 sold by the meter. This material is correct for all T6 trunks as well as Karmann interiors, front splash aprons, above the transaxle and the rear shelf of the engine compartment. Reutter used this in the trunk only and the embossed asphalt product in the remainder of the car.
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Re: Engine Compartment Sound Absorption Material
Since this discussion is on the insulation in the engine compartment, what is the "BEST" adhesive to use when installing the insulation and do the insulation panels need to be heated up for fitting?
Thanks.
Dan K.
Thanks.
Dan K.
- Eric Wahlberg
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Re: Engine Compartment Sound Absorption Material
Dan,
Prefit all the panels before you begin gluing them into place. Some trimmiming may be needed. Be certain to cut out space for the rear deck lid release cable to feed through. I use tubes of Liquid Nails that fit into a caulking gun. Apply a good amount of Liquid Nails to a panel being careful to keep the adhesive away from the edges so it does not ooze out when pressed into place. A heat gun and dead blow hammer should be use so the pieces can be formed to fit in place properly. Do not rush this process and neatness does pay off. Give the adhesive under the panels a day or two to totally dry. Paint the sound deadening panels with semi-gloss black urethane paint.
Prefit all the panels before you begin gluing them into place. Some trimmiming may be needed. Be certain to cut out space for the rear deck lid release cable to feed through. I use tubes of Liquid Nails that fit into a caulking gun. Apply a good amount of Liquid Nails to a panel being careful to keep the adhesive away from the edges so it does not ooze out when pressed into place. A heat gun and dead blow hammer should be use so the pieces can be formed to fit in place properly. Do not rush this process and neatness does pay off. Give the adhesive under the panels a day or two to totally dry. Paint the sound deadening panels with semi-gloss black urethane paint.
Eric Wahlberg