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30 feet of gasket removal

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Big Hunter

10-02-2007 11:57:34

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I'll completely tearing down and rebuilding a 190XT Allis Chalmers to as close to new as possible. (actually better then new with all the updates). I have everything torn down now and am starting to scrape off the gasket material left on the mating surfaces. rough figuring it's about 30 feet give or take not counting the engine...anyhow...HOLY SMACKREL ANDY whats the fastest way to do it. been using a putty knife that I keep sharp with a stone. Should I get the demel out, or maybe soak the old gasket with something? thanks

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george md

10-02-2007 20:33:32

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Re: 30 feet of gasket removal in reply to Big Hunter, 10-02-2007 11:57:34

bighunter, Take it to a shop with an old hot soak tank,
it may not take the gaskets off but it will
soften them and make life easier. The black
ones are tough . If you don't know of a hot tank there , bring it over and I'll do it for you,it's only 25
miles.

george

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RodInNS

10-02-2007 19:02:38

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Re: 30 feet of gasket removal in reply to Big Hunter, 10-02-2007 11:57:34

I generally use a razor scraper. Works good most of the time, but if I get one of the newer tougher gaskets then I may use some brake cleaner to soften it. I'd be leary of using anything that will remove metal...

Rod

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Joe (Wa)

10-02-2007 18:22:54

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Re: 30 feet of gasket removal in reply to Big Hunter, 10-02-2007 11:57:34

Big Hunter & the rest of you guys, pay attention to c felix's post, those old gaskets are laden with asbestos. Those cheap dust masks are not very effective. Once the fibres get embeded in the lungs it is there for life.

I worked in ship engineering for 36 years, most of it as a chief engineer, definitely no fan of the safety nazis but this one can be serious.

Joe

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Matt L

10-02-2007 18:02:47

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Re: 30 feet of gasket removal in reply to Big Hunter, 10-02-2007 11:57:34

Track down a Snap on, Mac or Matco tool guy and get one of their carbide gasket scrapers. Takes old gaskets off like butter.

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BigMarv1085

10-02-2007 17:43:24

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Re: 30 feet of gasket removal in reply to Big Hunter, 10-02-2007 11:57:34

There are many ways to remove the gasket material. I use the osborne nylon disc on a die grinder or 1/4 drill. Brake cleaner will also soften up the material. But I have a huge selection of wire wheels, burnishing pads from 3M and plastic and pneumatic gasket scrapers.

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Davis In SC

10-02-2007 17:25:10

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Re: 30 feet of gasket removal in reply to Big Hunter, 10-02-2007 11:57:34

Loctite makes a product called "Chisel", that will almost melt away most gaskets, making them quite easy to scrape off.. It also dissolves paint, so you have to use it with care.

Beware af rotary abrasives... It is easy to damage areas around holes... sometimes enough to cause an oil or coolant leak.

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Janicholson

10-02-2007 13:47:00

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Re: 30 feet of gasket removal in reply to Big Hunter, 10-02-2007 11:57:34

3M company rotary buff pad system. It has a nylon and steel arbor/pad with Vercrolike post and stud surface. disks are cheap and last a long time. a high speed drill is good for spinning it. Parts stores cary them for just this reason. JimN

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4010guy

10-02-2007 14:05:55

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Just a little note of caution in reply to Janicholson, 10-02-2007 13:47:00

That 3M stuff works good all right as i have used it myself but just be careful as it will eat into the steel if you grind to long in one place.

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RobMD

10-02-2007 13:30:34

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Re: 30 feet of gasket removal in reply to Big Hunter, 10-02-2007 11:57:34

knotted wireeeee brusssshhhh on your grinder will get the job done perfect.

14 bucks at home depot for a 5/8 arbor knotted wire cup brush.

make sure it's KNOTTED.

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K.W. Tx

10-02-2007 12:52:09

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Re: 30 feet of gasket removal in reply to Big Hunter, 10-02-2007 11:57:34

I would use the gasket remover mentioned below along with a angle grinder with a wire wheel or wire cup. Run it so it throws gasket material away from the internal surfaces. You might still check for loose wires after your done. It works the fastest for me anyway. And dont forget the eye protection, those wire wheels are unforgiving.

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Wayne from MN

10-02-2007 12:22:19

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Re: 30 feet of gasket removal in reply to Big Hunter, 10-02-2007 11:57:34

For heavy scraping I use the square end of a 12" mill file. It is hardened and just sharp enough to scrape the old residue off plus you have a larger handle and some weight behind your scraping efforts. Careful on aluminum surfaces. When done scraping, file lightly to true up the gasket surfaces and get rid of any thing you missed.
A new & sharp file is one of my "secrets to success" for eliminating those annoying leaks!

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glennster

10-02-2007 12:15:25

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Re: 30 feet of gasket removal in reply to Big Hunter, 10-02-2007 11:57:34

try aerosol gasket remover, any auto parts store has it. spray on , let it set a little, scrape off. the other tool you can try if you have an air grinder is the scotchbrite attachment for the roll-lock arbor. they work very well but be careful as you can machine down the metal surface if you are over zealous.

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Leon R

10-02-2007 12:13:47

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Re: 30 feet of gasket removal in reply to Big Hunter, 10-02-2007 11:57:34

A razor scraper and then some fine emery cloth should do the job along with some cussing also helps.

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c felix

10-02-2007 16:55:32

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Re: 30 feet of gasket removal in reply to Leon R, 10-02-2007 12:13:47

please use a resporator if you create dust from gaskets as most contain asbestos.I really like the 3m pads on a angled die-grinder but be careful not to round the edges(they do remove metal)

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