Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks



Visit the new site at vcca.org

Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Jun 2005
Posts: 166
Shade Tree Mechanic
OP Offline
Shade Tree Mechanic
Joined: Jun 2005
Posts: 166
I RECENTLY PURCHASED A FAIRLY ALL ORIGINAL 1941 4DR SPECIAL DLX
AND UPON INSPECTION OF THE VALVE TRAIN ON THE 216 HEAD, I DISCOVERED UNDERNEATH THE VALVE COVER A BLANKET OF SORT? ATTACHED TO THE HEAD? I SEEM TO RECALL HAVING HEARD OF SUCH A ITEM, BUT NEVER SAW ONE UNTILL NOW' IT IS OF A MESH TYPE MATERIAL AND HAS TWO EYLETS TO SLIP OVER THE TWO STUDS IN THE HEAD. IT IS THE FULL LENGHT OF THE HEAD AND APPEARS TO HAVE BEEN DESIGNED TO SOAK UP OIL .? ANYONE OUT THERE HAVE ANY MORE INFORMATION?
THANKS
MIKE.......

Last edited by 1941 SPECIAL DLX; 10/13/08 02:31 PM.

GENUINE GM ACCESSORIES
Joined: Dec 2001
Posts: 10,379
Likes: 1
Technical Advisor
ChatMaster - 10,000
Offline
Technical Advisor
ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379
Likes: 1


You have an after market accessory for your engine. The idea is to saturate the "blanket" with oil and the oil will slowly work down to the rocker arms and lubricate them.

They were also available for the early 4-cylinder engines.

Agrin devil


RAY


Chevradioman
http://www.vccacolumbiariverregion.org/



1925 Superior K Roadster
1928 Convertible, Sport, Cabriolet
1933 Eagle, Coupe
1941 Master Deluxe 5-Passenger Coupe
1950 Styleline Deluxe 4-Door Sedan
1950 Styleline Deluxe Convertible
2002 Pontiac, Montana, Passenger Van
2014 Impala, 4-Door Sedan, White Diamond, LTZ
2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ

If you need a shoulder to cry on, pull off to the side of the road.
Death is the number 1 killer in the world.


Joined: Jun 2005
Posts: 166
Shade Tree Mechanic
OP Offline
Shade Tree Mechanic
Joined: Jun 2005
Posts: 166
Thanks,

Do you think they are effective?
and should I utilize it?

Last edited by 1941 SPECIAL DLX; 10/13/08 03:37 PM.

GENUINE GM ACCESSORIES
Joined: Dec 2001
Posts: 10,379
Likes: 1
Technical Advisor
ChatMaster - 10,000
Offline
Technical Advisor
ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379
Likes: 1


With regular maintenance they are useful. They must be cleaned occasionaly and reoiled.

Agrin devil


RAY


Chevradioman
http://www.vccacolumbiariverregion.org/



1925 Superior K Roadster
1928 Convertible, Sport, Cabriolet
1933 Eagle, Coupe
1941 Master Deluxe 5-Passenger Coupe
1950 Styleline Deluxe 4-Door Sedan
1950 Styleline Deluxe Convertible
2002 Pontiac, Montana, Passenger Van
2014 Impala, 4-Door Sedan, White Diamond, LTZ
2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ

If you need a shoulder to cry on, pull off to the side of the road.
Death is the number 1 killer in the world.


Joined: Jan 2002
Posts: 30,701
Likes: 141
ChatMaster - 25,000
Offline
ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701
Likes: 141
Their function was to soak up noise. Often called valve silencer blankets. I think that they are great.


Gene Schneider
Joined: Jun 2005
Posts: 166
Shade Tree Mechanic
OP Offline
Shade Tree Mechanic
Joined: Jun 2005
Posts: 166
Thanks Gene.
That is what I thought, because the engine is silent...
I guess I will leave it in place.


GENUINE GM ACCESSORIES
Joined: Jan 2006
Posts: 7,046
Likes: 107
Hall Monitor
ChatMaster - 7,000
Offline
Hall Monitor
ChatMaster - 7,000
Joined: Jan 2006
Posts: 7,046
Likes: 107
I'll be darned. I've never heard of them before. I can't say I didn't learn something today. laugh


VCCA Member 43216
Save a life, adopt a senior shelter pet.
1938 HB Business Coupe
1953 210 Sedan
Joined: Jun 2005
Posts: 166
Shade Tree Mechanic
OP Offline
Shade Tree Mechanic
Joined: Jun 2005
Posts: 166
Tiny,
I will try to post a picture of it, as soon as I can figure out how?
It is somewhat interesting?


GENUINE GM ACCESSORIES
Joined: Feb 2005
Posts: 2,433
ChatMaster - 2,000
Offline
ChatMaster - 2,000
Joined: Feb 2005
Posts: 2,433
I agree with Tiny. Never heard of such a thing!!! :o But it does sound like a great idea idea especially for keeping things quiet.....my 48 runs pretty quietly.....but 'silent' would be really cool cool

Are they available anywhere??

1941 SPECIAL DLX, can you post a picture??


ken48
VCCA 42589


Joined: Oct 2003
Posts: 762
ChatMaster - 750
Offline
ChatMaster - 750
Joined: Oct 2003
Posts: 762
I have seen them a few times on ebay but not very often.

Joined: Sep 2009
Posts: 6,689
Likes: 21
ChatMaster - 6,000
Offline
ChatMaster - 6,000
Joined: Sep 2009
Posts: 6,689
Likes: 21
Looking back over the responses on this question and although I've know about these "blankets" for a long time now, I didn't see a post as to where one could buy one. I'd like to have one. Anything to help hold down noise is appreciated. My 41 5-passenger is real noisy even after I've put the door seals on. They did help quite a bit. I bought some jute at Hershey and I'm going to cut and paste some under the floor mat where, after all these years, it is about non-existent. Also, I expect some of the noise is coming from the glass pack muffler. Although it is not loud out of the tail pipe, I suspect that it is rumbling, drumming, carrying-on (pick one) and "telegraphing" up through the "floor boards" and into the cabin. I think a regular 41 muffler will help. I can remember my dad borrowing a 1941 Chevrolet from a friend to drive to my grandfather's funeral back in January, 1941 (all we had for the 7 family members at the time was a 1936 Ford Pickup with a plywood box on the back for we children. The 41 was as quite as a mouse by the standards I was used to back then. Anyone have any experience or suggestions on this topic (muffler noise, not tailpipe noise, etc)? I don't think I can stand the noise all the way to Flint so I've got to reduce the din somehow. Thanks in advance for any info that may help. Charlie

Joined: Jan 2002
Posts: 30,701
Likes: 141
ChatMaster - 25,000
Offline
ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701
Likes: 141
I have run the valve cover blankets in my cars for years. While it won't quiet an engine will loose valves it does soak upsome noise.

That why I run stock mufflers on my cars. I can't stand the drumming through the whole body caused bt the straight thru mufflers. Really hits its peak at 40 to 50 MPH.


Gene Schneider
Joined: Sep 2009
Posts: 6,689
Likes: 21
ChatMaster - 6,000
Offline
ChatMaster - 6,000
Joined: Sep 2009
Posts: 6,689
Likes: 21
Chevgene, thanks. I'm a little lazy tonight, so, in order to save me some trouble looking up all the suppliers products, do you know where one may purchase these "blankets"? Best, Charlie

Joined: Dec 2007
Posts: 412
Backyard Mechanic
Offline
Backyard Mechanic
Joined: Dec 2007
Posts: 412
Charlie,

During my recent restoration of my car, I installed sound deading materials in the roof, doors and floor as well as the firewall and any other place that I could put it. The stuff is not cheap, but it made a huge difference in the noise level in the car. I also have new door gaskets and window run channel too. So, I figure it is as good as it will get. You can have a conversation in the car at any speed. This also helps with keeping heat out in the summer and in in the winter. I also installed some high tech insulation on the entire interior of the car.

I don't know about jute on the floor, but it too may be effective. I also doubled up on the insulation over the muffler. I was amazed at the amount of heat that was coming right up through the floor under the driver's seat.

Rich


1937 Master Deluxe 4-door Sport Sedan
Restoration project 99% complete
May never get to 100%
Joined: Sep 2009
Posts: 6,689
Likes: 21
ChatMaster - 6,000
Offline
ChatMaster - 6,000
Joined: Sep 2009
Posts: 6,689
Likes: 21
Rich, thanks a heap! I'll continue to work at making it less noisy. I'm convinced that a majority of my noise is coming from the muffler. I'm gonna look see if I have one or not but may have to have something non-OME welded in place. Anyway, what kind of sound-deadening material did you use? I'm thinking of going with sheet-rock but it is rather heavy and a little thick. I was thinking maybe some above the muffler on the underside too. But while trying to figure out how to mount/hang it, it dawned on me that it wouldn't hold up after getting splashed by rain water. It'd be okay if it held out and finally dropped off in MI but they frown on littering down here in beautiful NC. But in the summer time of 2011 I'm bound to get in a thunderstorm about an hour after leaving home. I've tried possum and raccoon hides to make a sound proofing rug but they're too thin to make much difference. Maybe I'll go out and try to catch me some of those wolverines folks got up there. Should make a better rug and without much trouble too. (See how I think? Yep, way ahead of some folks.) Again, thank for your response. Charlie

Joined: Dec 2007
Posts: 412
Backyard Mechanic
Offline
Backyard Mechanic
Joined: Dec 2007
Posts: 412
Charlie,

All of my sound deadening materials are installed on the inside of the body. I removed all of the interior and scraped all of the old tar/felt crap that was stuck to the inside of everything. That took two days of hard work to clean this stuff out of the car. The material I used was Dampifier Pro, it comes in 12" x 20" sheets and is 80 mills thick with a heavy layer of aluminum foil on one side. You just place this over the area you want it and use a wood roller to push it into good contact with the body panels and it stick to the sheetmetal. I then used insulation that I bought at Home Depot, it is like heavy bubble wrap with foil barier on both sides. I have two to three layers of this stuff everywhere.

It was a big job, but since I had the car stripped to the bones, it seemed like the right thing to do. And the results show that it was well worth it.

Rich


1937 Master Deluxe 4-door Sport Sedan
Restoration project 99% complete
May never get to 100%
Joined: Sep 2009
Posts: 6,689
Likes: 21
ChatMaster - 6,000
Offline
ChatMaster - 6,000
Joined: Sep 2009
Posts: 6,689
Likes: 21
Rich, thanks for the info. I'll keep it in mind as I go about fixing mine. I don't need it to be as quiet as a Lexus though. If I can get it down to about OSHA standards of 85 decibels, I be pleased. Best, Charlie

Joined: Dec 2007
Posts: 412
Backyard Mechanic
Offline
Backyard Mechanic
Joined: Dec 2007
Posts: 412
Charlie,

I don't think you will have to worry about getting as quite at a Lexus, but I sure do believe that the effort I put into the sound and thermal insulation was well worth it.

The steps that I mention will make much more of a difference than a valve train blanket could ever make. However, it was not easy or cheap, but once I had the car ripped apart it was just one more thing that I wanted to do in the restoration.

Good luck,

Rich


1937 Master Deluxe 4-door Sport Sedan
Restoration project 99% complete
May never get to 100%
Joined: Apr 2009
Posts: 104
Shade Tree Mechanic
Offline
Shade Tree Mechanic
Joined: Apr 2009
Posts: 104
that valve cover blanket sounds very interesting, I would like to see one, or better yet have one


1941 Master Deluxe 2 door Sedan
original unrestored driver

http://i762.photobucket.com/albums/xx270/junkman41/car.jpg
Joined: Feb 2009
Posts: 154
Shade Tree Mechanic
Offline
Shade Tree Mechanic
Joined: Feb 2009
Posts: 154
You mean if I had one of those valve blankets I would lose my "click'n".

Last edited by thutch7244; 11/20/09 09:43 PM.

Listen to the "click'n" of those push rods
Joined: Jan 2002
Posts: 175
Shade Tree Mechanic
Offline
Shade Tree Mechanic
Joined: Jan 2002
Posts: 175
i have also seen a valve train blanket on ebay...and should have bought it...not so much for the noise, but to minimize the blow-by and oil exiting the vent holes on the valve cover on my 37.

Joined: Dec 2001
Posts: 2,142
Likes: 3
ChatMaster - 2,000
Offline
ChatMaster - 2,000
Joined: Dec 2001
Posts: 2,142
Likes: 3


John



1954 Belair Sport Coupe
1960 2 door Impala Hardtop 348/340HP 4spd
1962 2 door Impala Hardtop 409/409 4spd
1962 2 Door Biscayne Sedan 327/250 Auto
1977 Monza Mirage 305 4 Speed
1988 Celebrity Wagon
2018 GMC Sierra 2500 HD Diesel
Joined: Jan 2002
Posts: 30,701
Likes: 141
ChatMaster - 25,000
Offline
ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701
Likes: 141
The blanket will do nothing to eleminate the blow by fumes as it has plenty of space around it for the fumes to pass by. It will help to keep the oil from spattering out of the vents at high speeds.


Gene Schneider

Link Copied to Clipboard
 

Notice: Any comments posted herein do not necessarily reflect the official position of the VCCA.

Powered by UBB.threads™ PHP Forum Software 7.7.5