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Topic Review (Newest First)
01-25-2008 08:13 PM
powerrodsmike I like Vinyl...

Anyway, I have a 7.5 HP Kaeser oiless compressor, it came mounted in it's own sound deadening box. It is a 2 cylinder piston type, not a diaphram, and not a screw type as most Kaesers are.




The box is aluminum, all welded with opening doors on 2 sides and the top.

The doors are all gasketed, and the whole box is lined with 1 1/2" acoustic foam. There is a vent for air intake, and air is directed through a duct with more foam and some baffles.

The exhaust air goes out through another foam lined duct on the other side.

I have a 1" ID length of high pressure hose connecting to a remote tank.


This setup is so quiet that you can stand under it, (as shown in the pic, it's on a rack 8' off the floor.), and have a normal conversation while it is running.

If I were you I would get an old refrigerator and line it with soft foam, cut some breather holes with a muffin fan or 2, and put the pump in it..Put the tank somewhere else with a hose running to it.

Red Green strikes again.


Later, mikey
01-25-2008 02:08 PM
AntnyL
Quote:
Originally Posted by schnitz
That CD has 2 sides???


In a while, Chet.
Hah! While my turntable is looooong gone, I still refer to those songs as the "side 2" songs! I recently brought all my beloved old LP's (yes, including the Led Zepp collection, Sabath, Yes, Aerosmith, and all my other faves) to my local recycling depot. The kid there was all too happ to take them off my hands. In return, he let me take a pile of nice sheetmetal that I can use to repair the rust on my 55 Chebby truck. So it all went to a good cause!

Hey Mikey, cool stereo setup!
01-25-2008 12:10 PM
powerrodsmike
Quote:
Originally Posted by schnitz
That CD has 2 sides???


In a while, Chet.

Hahahaha some people have turntables in their shop...

Mikey's shop stereo..

Usually the Sirius radio is playing, but sometimes I need an attitude adjustment to get right with society..

...Then it's a Frank Zappa vinyl marathon

Scary shop music keeps the looky-loos out as well. (they think I'm filming deviant porn or something )

Later, mikey
01-25-2008 11:59 AM
schnitz
Quote:
Originally Posted by AntnyL
Or do what I used to do: turn the stereo up REAL LOUD! Preferably side 2 of Led Zeppelin IV!!

That CD has 2 sides???


In a while, Chet.
01-25-2008 11:33 AM
AntnyL
Quote:
Originally Posted by boatbob2
Hi,you want to make it quiet heres an easy way,with your right hand,take the electrical plug out of the socket,with your left hand,pick up the compressor,and put it into the back of the truck(or trunk of the car) take it to the nearest dump....AND DUMP IT...
Or do what I used to do: turn the stereo up REAL LOUD! Preferably side 2 of Led Zeppelin IV!!
01-25-2008 11:20 AM
Henry Highrise
Quote:
Originally Posted by boatbob2
Hi,you want to make it quiet heres an easy way,with your right hand,take the electrical plug out of the socket,with your left hand,pick up the compressor,and put it into the back of the truck(or trunk of the car) take it to the nearest dump....AND DUMP IT...
I was going to say something similar to that but I am trying to be nice today.
01-25-2008 10:26 AM
boatbob2
noisy compressor

Hi,you want to make it quiet heres an easy way,with your right hand,take the electrical plug out of the socket,with your left hand,pick up the compressor,and put it into the back of the truck(or trunk of the car) take it to the nearest dump....AND DUMP IT...
01-25-2008 10:05 AM
bentwings That's exactly what I had in mind. My current thought is that the air intake will make 2 90 degree turns. The duct will have insulating material inside of it similar to A/C home ducting. The exhaust or vent will also have 2 90 deg bends exiting near the floor which will have a foam mat at the exit.
01-25-2008 10:00 AM
Kampr You might try some of the stuff they use for rhino truck bed liners. You can buy it at some auto parts stores. Might help.

Last year at an air show they had a P-52, F-16 and an FA-18, (I think that's what it was anyway) the new fighter plane fly over at one time. The P-51 was a lot smaller than the F-16 and the F-16 was a lot smaller than the FA-18. The FA-18 made some awesome moves

Danny
01-25-2008 06:43 AM
AntnyL
Quote:
Originally Posted by bentwings
lLst summer in an effort to quiet our HF POS down I draped two big beach towels over it and surprising it knocked off quite a bit of noise. Since it only runs occasionally it was livable. It was actually better than the box with insulation that I made previously.

I also found the air intake to be particularly noisy. Unfortunately ours has some wierd thread. it is undoubtely a metric of some sort but I sure couldn't find a match in my gages. In the spring I'm going to get a tap that is close and tap the thing out to someting I can get and build an intake muffler. Then I'm goin gto go after the box idea again but this time I'll try at least 3 different weight of insulation including a lead layer. This will be sealed except for a cooling vent right at the cylinder.
Be carefull how you design the cooling vent - any opening will allow the noise to escape. The closer to the source, the louder it will be. Make it a torturous path if you can. The more turns the air has to take, the better...noise dissipation-wise, that is.
01-25-2008 12:21 AM
bentwings Excellent idea.!!!
01-24-2008 11:47 PM
dinger
Quote:
Originally Posted by bentwings
lLst summer in an effort to quiet our HF POS down I draped two big beach towels over it and surprising it knocked off quite a bit of noise. Since it only runs occasionally it was livable. It was actually better than the box with insulation that I made previously.

I also found the air intake to be particularly noisy. Unfortunately ours has some wierd thread. it is undoubtely a metric of some sort but I sure couldn't find a match in my gages. In the spring I'm going to get a tap that is close and tap the thing out to someting I can get and build an intake muffler. Then I'm goin gto go after the box idea again but this time I'll try at least 3 different weight of insulation including a lead layer. This will be sealed except for a cooling vent right at the cylinder.
I wonder how the homemade lizard skin would work as a soundshield. Time for an experiment?
01-24-2008 11:06 PM
bentwings lLst summer in an effort to quiet our HF POS down I draped two big beach towels over it and surprising it knocked off quite a bit of noise. Since it only runs occasionally it was livable. It was actually better than the box with insulation that I made previously.

I also found the air intake to be particularly noisy. Unfortunately ours has some wierd thread. it is undoubtely a metric of some sort but I sure couldn't find a match in my gages. In the spring I'm going to get a tap that is close and tap the thing out to someting I can get and build an intake muffler. Then I'm goin gto go after the box idea again but this time I'll try at least 3 different weight of insulation including a lead layer. This will be sealed except for a cooling vent right at the cylinder.
01-24-2008 01:15 PM
F&J Hope the mods don't lock the thread for "O/T"

To keep it legal, on topic: I plan on trying to swap a used crank into my damaged 4-5? hp twin Sears with parts I have here on hand

Now,,,back off topic A friend of mine who deals on Ebay and also scrap & surplus, has TWO UH-1 Hueys in his back yard! They were bought for scrap and are minus engines, etc....but they sure look cool. To quote him "both are short-fuselage gunships" and "both have Viet Nam combat histories" How cool is that

I WILL take some pics next visit..
01-24-2008 12:12 PM
speedydude [QUOTE=bentwings]The PW R 2800 is a double row of 9 cylinders used in most of the radial fighters and some bombers of WW 2. It was from about 1800hp in the early model to 2400 hp in the later models. These were 18 cylinders 2800 cu in.

The 4360 "corn cob" was 4 rows of 7. 28 cylinders and made up to around 3000 hp. These were used in the F2G Corsair and the F8F Bearcat.{Quote}



F2G........huh, I thought you might have the answer to that one. Wasn't it also nicknamed the "flying cigar" as that particular engine made it look even longer???

Listening to a guy talk who actually flew these and P-51's, you could only apply part throttle while on the runway taking off. The torque from full throttle would ground loop you every time. Day~um, that's somethin I'd like to fly.

Oh yea, the compressor.........I would have to disagree OLDRED. I would buy that quiet compressor in a minute. Then I could actually hear the music while working.
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