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insulated the engine compartment [message #108644] Wed, 15 December 2010 20:34 Go to next message
RadioActiveGMC is currently offline  RadioActiveGMC   United States
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For the last two days I spent kinda sorta insulating the engine compartment. I used a sound deadening mat that has a metal foil outside. I'm using it as a heat shield and to quiet the interior. Basically I used what I could get wholesale from my business.
Its a pain in the neck to install since there are so many wires, bolts, supports and such under there. Cut up all my fingers on the metal mat, and foil tape which I used about 1/2 a roll.
Take off your wheel wells. Make sure you have plenty of screws with fender washers and go to town! It helps alot!!!!
While my fender wells are off, I'm going to install fender vents I ordered from JimK. And I noticed that one of my fuel vapor lines is venting to the world so I ordered a new canister today as well.
Insulating the engine helps make the cabin more quiet, I can't wait to see how it works out while on a trip. If my engine blows again at least I won't hear it as much! LOL


***"Gettin There"-1973 23' Sequoia- Michael, Onans smell, "Go solar/wind power!"
Re: insulated the engine compartment [message #108656 is a reply to message #108644] Wed, 15 December 2010 22:03 Go to previous messageGo to next message
WD0AFQ is currently offline  WD0AFQ   United States
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Mike, if you get the cabin area too quiet you no longer have an excuse to not hear the Mrs. I got that problem now. Moved the muffler to the rear.
Dan


3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer
Re: insulated the engine compartment [message #108676 is a reply to message #108644] Thu, 16 December 2010 10:01 Go to previous messageGo to next message
RadioActiveGMC is currently offline  RadioActiveGMC   United States
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LOL, for sure! Glad to see someone commented. I thought everyone was on my fuel canister thread still talking about which of them invented the transistor! lol

***"Gettin There"-1973 23' Sequoia- Michael, Onans smell, "Go solar/wind power!"
Re: insulated the engine compartment [message #108679 is a reply to message #108644] Thu, 16 December 2010 10:11 Go to previous messageGo to next message
g.winger is currently offline  g.winger   United States
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When I insulated mine it was alot of work but not hard. No mtr or tranny. Rolled around on a stool. Used .005 thick foil and 1/2 inch "ceramic" insulation. At hiway speed I hear no engine noise at all. Only if climbing a steep hill. i used all thread sharpened to a point in the holes for the cruise,vapor canister,,,etc. Pokes a hole in the insulation and foil and is easily removed.,,,,,JWID,,,PL
Re: [GMCnet] insulated the engine compartment [message #108681 is a reply to message #108676] Thu, 16 December 2010 10:46 Go to previous messageGo to next message
mannystrans is currently offline  mannystrans   United States
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I can drop the tranny in less than an hour in most cases, except when
the owner or previous owner installed an insulating blanket under the
floor.
After the final drive bolts to tranny are removed, tranny case to
engine bolts, starter bolts, converter cover and converter bolts.
Speedo linkage disengaged. Loosen the tranny mounts to frame, one each
side. Cooler lines disconnected, and he tranny and engine held up with
come-longs, there's just three bolts holding the tranny to the back
plate. Because of the blanket, the back plate needs to come out
instead of sliding back. This means unbolting the frame mounts from
back plate and frame. This takes as long as the previous work just
done.
Do I like the insulating engine compartment blankets?
YES

--
Manny Trovao
mannystrans@hughes.net
Manny's Trans / Power Drive
San Jose, California
408-937-1583
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Re: insulated the engine compartment [message #108691 is a reply to message #108644] Thu, 16 December 2010 12:51 Go to previous messageGo to next message
RadioActiveGMC is currently offline  RadioActiveGMC   United States
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I would of loved to be able to do the tranny. Maybe one day when I have alot of time and courage. I'd like to get under there and change the trans pan, get the o ring replaced as suggested by jimk on the speedo bullet and tighten my lines....but with 100 gmc projects going on it will have to wait! But I hope to insulate that area as well.

***"Gettin There"-1973 23' Sequoia- Michael, Onans smell, "Go solar/wind power!"
Re: [GMCnet] insulated the engine compartment [message #108712 is a reply to message #108681] Thu, 16 December 2010 19:31 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
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Manny,

I hope you (nor I) ever have to take advantage of it, but I insulated
all of my engine compartment floor and firewall, EXCEPT for the area
immediately behind the back plate. I don't think that small area
transmits much heat or noise through the carpet covering it inside the
coach.

Ken H.


On Thu, Dec 16, 2010 at 11:46 AM, Manny Trovao <mannystrans@gmail.com> wrote:
> I can drop the tranny in less than an hour in most cases, except when
> the owner or previous owner installed an insulating blanket under the
> floor...
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: insulated the engine compartment [message #108718 is a reply to message #108644] Thu, 16 December 2010 20:47 Go to previous messageGo to next message
RadioActiveGMC is currently offline  RadioActiveGMC   United States
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I'm thinking I should do more. The area of the back of the engine compartment where the inner step is. It seems like with all the stuff back there it would be a huge pain.

***"Gettin There"-1973 23' Sequoia- Michael, Onans smell, "Go solar/wind power!"
Re: [GMCnet] insulated the engine compartment [message #108722 is a reply to message #108712] Thu, 16 December 2010 21:53 Go to previous messageGo to next message
john arbuckle is currently offline  john arbuckle   United States
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Pics of this would be grand it sounds like a great idea. Anything to
insulate this thing will help.
Thanks
John Arbuckle
1976 Palm Beach
Tucson AZ

On Thu, Dec 16, 2010 at 6:31 PM, Ken Henderson <hend4800@bellsouth.net>wrote:

> Manny,
>
> I hope you (nor I) ever have to take advantage of it, but I insulated
> all of my engine compartment floor and firewall, EXCEPT for the area
> immediately behind the back plate. I don't think that small area
> transmits much heat or noise through the carpet covering it inside the
> coach.
>
> Ken H.
>
>
> On Thu, Dec 16, 2010 at 11:46 AM, Manny Trovao <mannystrans@gmail.com>
> wrote:
> > I can drop the tranny in less than an hour in most cases, except when
> > the owner or previous owner installed an insulating blanket under the
> > floor...
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>
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Re: insulated the engine compartment [message #108745 is a reply to message #108644] Fri, 17 December 2010 09:04 Go to previous messageGo to next message
RadioActiveGMC is currently offline  RadioActiveGMC   United States
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For the backstep engine compartment area is it ok to use that insulation that looks kinda like bubble wrap? I know its not the best, but I have a roll already and wonder if it can help at allin the engine compartment. I'd not put it directly near and high heat.

***"Gettin There"-1973 23' Sequoia- Michael, Onans smell, "Go solar/wind power!"
Re: [GMCnet] insulated the engine compartment [message #108746 is a reply to message #108745] Fri, 17 December 2010 09:27 Go to previous messageGo to next message
powerjon is currently offline  powerjon   United States
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I would not use the plastic type bubble wrap material in the engine
compartment. Any material used in and around the engine compartment
should be a fire resistance material. All the kits that I have seen
that were sold for use in the engine and generator compartment were
made of material that would not support combustion. The bubble wrap
material will sure feed a fire and could melt in the temps that are in
the engine compartment. I don't know if Jim K still sells the engine
compartment insulation kits. A lot of GMCer have used the ceramic
paper insulation that is available from McMaster. It is not
inexpensive, but so is you coach.

See <http://www.mcmaster.com/#flexible-ceramic-insulation/=a6qx7g


J.R. Wright
GMC GreatLaker
TZE Zone Restorations
77 Eleganza Custom (For Sale)
1975 Avion (Under Reconstruction)
Michigan



>
>
> For the backstep engine compartment area is it ok to use that
> insulation that looks kinda like bubble wrap? I know its not the
> best, but I have a roll already and wonder if it can help at allin
> the engine compartment. I'd not put it directly near and high heat.
> --
> 1973 23' Sequoia-
> Michael, Casa Grande, AZ
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J.R. Wright
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GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
Re: [GMCnet] insulated the engine compartment [message #108752 is a reply to message #108712] Fri, 17 December 2010 11:13 Go to previous messageGo to next message
mannystrans is currently offline  mannystrans   United States
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On Thu, Dec 16, 2010 at 5:31 PM, Ken Henderson <hend4800@bellsouth.net> wrote:
> Manny,
> I hope you (nor I) ever have to take advantage of it, but I insulated
> all of my engine compartment floor and firewall, EXCEPT for the area
> immediately behind the back plate.  I don't think that small area
> transmits much heat or noise through the carpet covering it inside the
> coach.
> Ken H.


Ken,
That's great, it means you put alot of thought into it.
The first one was a Darren's insulation kit. I tried to drop the
tranny but the back plate wouldn't slide back.
After that, I just unbolted the mounts from the plate so it could drop back.
--
Manny Trovao
mannystrans@hughes.net
Manny's Trans / Power Drive
San Jose, California
408-937-1583
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Re: insulated the engine compartment [message #108778 is a reply to message #108644] Fri, 17 December 2010 16:33 Go to previous messageGo to next message
RadioActiveGMC is currently offline  RadioActiveGMC   United States
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That link was great, I wish I had it at the beginning of the project, but I think I may place a order.

***"Gettin There"-1973 23' Sequoia- Michael, Onans smell, "Go solar/wind power!"
Re: insulated the engine compartment [message #108782 is a reply to message #108745] Fri, 17 December 2010 18:17 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
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Mr.RadioActive wrote on Fri, 17 December 2010 09:04

For the backstep engine compartment area is it ok to use that insulation that looks kinda like bubble wrap? I know its not the best, but I have a roll already and wonder if it can help at allin the engine compartment. I'd not put it directly near and high heat.


NO

Go to Northwestern Ohio Foam Packaging and get some Microfoil. If you call them they will send you samples. After looking at the samples try to burn one and see what happens. Then try the same thing with a sample of your bubble wrap.

It stood up to my engine fire a few years back.

They will ship UPS to you direct.

www.nofp.com look under products and them microfoil.


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: insulated the engine compartment [message #108803 is a reply to message #108644] Fri, 17 December 2010 21:34 Go to previous messageGo to next message
RadioActiveGMC is currently offline  RadioActiveGMC   United States
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that stuff from nofp looks great....any idea on the price of it?

***"Gettin There"-1973 23' Sequoia- Michael, Onans smell, "Go solar/wind power!"
Re: insulated the engine compartment [message #108930 is a reply to message #108644] Sun, 19 December 2010 01:23 Go to previous messageGo to next message
Donovan-formerly Jase386 is currently offline  Donovan-formerly Jase386   United States
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is the microfoil good for noise as well, Ken?

Donovan, Greenville SC 1975 Eleganza II 81,500 miles
Re: insulated the engine compartment [message #108959 is a reply to message #108803] Sun, 19 December 2010 10:01 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
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Mr.RadioActive wrote on Fri, 17 December 2010 21:34

that stuff from nofp looks great....any idea on the price of it?


Six or eight years ago I bought 8 or 10 rolls of the stuff. I picked it up in my GMC while traveling through the area on my way from Dayton to a GMC get together in Michigan. I delivered the rolls to a GMC dinner the next day for people that requested them ahead of time.

At the time I toured their manufacturing facility and they came out to see my GMC coach. Unfortunately I do not remember the cost on it any more. I'm guessing $50 to $70 per roll. People at the GMC dinner were cutting the rolls in half and sharing them. Something tells me a 1/2 roll was in the neighborhood of $30 to $35. I may be off on this. I do remember that there were two widths available 4' and 6'. I think the rolls were 4' by 125' and 6' by 75'. Some people were making windshield covers out of it. The white on one side was a couple of dollars more per roll.

YOU REALLY NEED TO TELEPHONE THEM and verify everything I am saying. My memory of this may not be exactly correct.

This a family owned and run business. The owners (husband and wife) work in the office and I think the daughter also works in the office as well. At the time they agreed to sell less than the stock length rolls if you told them you were a GMCer. I know several additional GMCers ordered the stuff direct from them after that. This has been several years ago and the less than one roll offer for us may not be honored any more.

Just give them a call with your questions and ask for samples to be mailed to you. I do not remember the pricing anymore.

I would not use the bubble wrap stuff after seeing how it sustains burning. As I said before light up a piece of bubble wrap stuff and a piece of this for your self. It also is sold for under carpet insulation and can be walked on.

This is primarily a heat shield / insulation. It does deaden some sound but not like something 1" thick would do.


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: insulated the engine compartment [message #108961 is a reply to message #108644] Sun, 19 December 2010 10:32 Go to previous messageGo to next message
RadioActiveGMC is currently offline  RadioActiveGMC   United States
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I'll call them this week for sure.

***"Gettin There"-1973 23' Sequoia- Michael, Onans smell, "Go solar/wind power!"
Re: insulated the engine compartment [message #108980 is a reply to message #108644] Sun, 19 December 2010 12:25 Go to previous messageGo to next message
carguy is currently offline  carguy   United States
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I used Microfoil when I redid my interior. I put it everywhere, on the sides and above the new headliner. never thought of putting it in the engine compartment but it sounds like a good idea. I still have a good portion of a roll left.

One word of caution to anyone who is considering buying Microfoil, don't order the version with the foil on one surface. I found it could short out some of the wiring and I think the plastic surface is just as good.


Bill Brown - '77 Buckeye Cruiser
Coshocton OH
carguybill@sbcglobal.net
Re: insulated the engine compartment [message #109012 is a reply to message #108980] Sun, 19 December 2010 15:41 Go to previous messageGo to previous message
Ken Burton is currently offline  Ken Burton   United States
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carguy wrote on Sun, 19 December 2010 12:25

I used Microfoil when I redid my interior. I put it everywhere, on the sides and above the new headliner. never thought of putting it in the engine compartment but it sounds like a good idea. I still have a good portion of a roll left.

One word of caution to anyone who is considering buying Microfoil, don't order the version with the foil on one surface. I found it could short out some of the wiring and I think the plastic surface is just as good.

Bill, I believe that the white stuff still has foil on both sides with an added white cover of some fire retardant material.



Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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