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Old 09-10-2010, 10:11 AM
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PICKLING, SOAK an old supercharger TO LOOSEN UP.

Hello,

I have a 30ís Graham supercharger thatís probably not been used for decades. Itís not quiet seized as I can work it back and forth and it will loosen up enough to turn 360+... but with a fair amount of effort. I think thereís a fair chance itís gummed up with some overheated oil.

I think if I cold soak it in some fine, thin penetrating oil or maybe some solventÖ mixed with Gunk(?)ÖI donít know, I could get it to turn over easily. One caveat is expense. Its an oddball shape. If Iím really clever I can maybe get away with a couple of gallons to submerge in some sort of fabricated pan or improvised bucket. (Hot tanks donít exist around here any more EPA)

Any Ideas on what sort of solution I could pickle it in for sometime(?) to loosen it up would be greatly appreciated.

Regards, PK



BTW: I like to get ti soaked in something (light oil) afterward to protect whatever maybe stripped clean of oil inside.
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Old 09-10-2010, 10:16 AM
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I would buy some gallon jugs of wd40 as I assume it is or some part of it aluminum..once it has soaked for a few days then try taking it apart..steel bolts threaded into aluminum can weld themselves together from corrosion so patience is required..

Sam
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Old 09-10-2010, 11:53 AM
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Thanks Sam,

That might just be the way to go. I wonder though if there are some other light oil with some kind solvent properties (liquid wrench, marvelous mystery,etc) or even tapping oil or something (just complicating things I guess) might work better.

Regards, PK
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Old 09-10-2010, 01:35 PM
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Automatic transmission fluid and acetone mix...........
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Old 09-10-2010, 05:51 PM
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diesel fuel....cheap
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Old 09-10-2010, 06:51 PM
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Quote:
Originally Posted by techinspector1
diesel fuel....cheap
Thanks techinspector1,

Huh, sounds interesting. Maybe thin it with some kerosene...I like cheap...simple solution. Do you know what in the composition of diesel fuel would be doing the "breaking loose"? Just curious, never heard of it as a detergent/lubricant.


(BTW, your cam link is dead)

Quote:
Originally Posted by poncho62
Automatic transmission fluid and acetone mix...........
Thanks, any feel for proportions, acetone to transmission fluid? I visited the 2 sites on your post and did a cursory search...didn't come up with anything

Thanks much, PK
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Old 09-10-2010, 06:57 PM
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50-50, I guess.........I hear it works better than most penetrating fluids......I loosened up a seized carb with it a few months ago....took 3 days of soaking, but it worked
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Old 09-10-2010, 07:07 PM
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Damn EPA. I use cold tanks anyway.

Quote:
Originally Posted by poncho62
Automatic transmission fluid and acetone mix...........
Transmission fluid and acetone mix... give a few days or weeks.. Go to a Dollar Store and you can find all different sizes of plastic tubs; One of them should be close to the right size and shape.
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Old 09-10-2010, 07:23 PM
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Poncho's right. ATF and acetone mixed 50/50. Tech is right there too with the diesel-That's what Grandpa woulda done.. it would probably work just fine and cheaper, but if it's tough go with Poncho. Worked like a champ on some rusted latches and hinges I had. Soaked twice a week for a couple months with liquid wrench- nothing. A few days of that homebrew, loose as new
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Old 09-10-2010, 09:10 PM
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I remember my grandad soaking some old outboard motor parts on a mix of kerosene and Marvel Mystery Oil for about a week so he could get some rusty steel bolts out of aluminum . It worked.
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Old 09-11-2010, 12:12 PM
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All these homespun Ideas are exactly what I was looking for, thanks much. Any big problems with the acetone evaporating from the ATF/actone mix?

Had a brainstorm, if acetone wonít eat the plastic, maybe Iíll put the thing in a doubled up 3ml heavy duty garbage bag. Strap it up with duct-tape. That way I can skimp on juices. To just submerge this thing with itís mushroom head in a drum would be an easy 5+ gallons.

Regards, PK
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Old 09-11-2010, 12:45 PM
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Quote:
Originally Posted by pk44
All these homespun Ideas are exactly what I was looking for, thanks much. Any big problems with the acetone evaporating from the ATF/actone mix?

Had a brainstorm, if acetone wonít eat the plastic, maybe Iíll put the thing in a doubled up 3ml heavy duty garbage bag. Strap it up with duct-tape. That way I can skimp on juices. To just submerge this thing with itís mushroom head in a drum would be an easy 5+ gallons.

Regards, PK
I think it might work but with less if any acetone.. The transmission fluid alone does a great job given a little time.

Are you really going to make application for Graham unit or just want to preserve it? Have a good weekend.
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Old 09-11-2010, 02:14 PM
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Acetone may eat the plastic so a test may be in order..I like the diesel idea and diesel is not all that spendy if you need 4-5 gallons..maybe diesel and trans fluid..??

Sam
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Old 09-12-2010, 11:15 AM
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Thanks Guys,

Quote:
Originally Posted by Duntov
I think it might work but with less if any acetone.. The transmission fluid alone does a great job given a little time.
Intuitively Iím leary about the acetone and a garbage bagÖalthough put th whole blower, bag and all, nothing lost. I've had it for about ten years. A week or two won't kill me to soften it up as best itís going to.

Quote:
Originally Posted by Duntov
Are you really going to make application for Graham unit or just want to preserve it? Have a good weekend.
I want to if feasible, or sell it. Iíve got a 1935 mahogany speed boat (search my moniker/name "pk44" here...kinda fun, done enough on wheels for now) Iím doing it with a built but correct, big 250ci Chrysler flat head. The blowers from the mid Ď30ís, period correct. (In the cars back then they must have outlasted the motorsÖgood for 100k-ish). I think It would be kinda cool.

Quote:
Originally Posted by OneMoreTime
Acetone may eat the plastic so a test may be in order..I like the diesel idea and diesel is not all that spendy if you need 4-5 gallons..maybe diesel and trans fluid..??
I like that Idea. Acetone is looking less and less appealing.

Thanks a lot again, PK
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Old 09-12-2010, 01:38 PM
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Edit above.
Quote:
Originally Posted by pk44
...Iíve got a 1935 mahogany speed boat (search my moniker/name "pk44" here...kinda fun, done enough on wheels for now) Iím doing it with a built but correct, big 250ci Chrysler flat head......
It's here:
Hotrod a '52 Chrysler flathead 6 ??? have to scroll down a bit for the pictures. Wasn't sure how the project would be accepted here.

Should have put that up in the first. PK
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