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Hit & Miss Gas Engine Discussion Meet collectors of hit and miss engines, ask questions about collecting, restoring and showing antique flywheel engines.

Hit & Miss Gas Engine Discussion

Starting my first restoration project


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  #1  
Old 06-27-2008, 02:31:43 PM
theo b theo b is offline
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Default Starting my first restoration project

I am about to begin restoring a FB 1-1/2 hp Gas engine. I would like to get the whole thing cleaned up by sandblasting it. Any suggestions before I start like what should or should not be blasted, what type of blast material, etc. I will be disassembling the unit completely. Any helpful internet links would be appreciated as well.
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Old 06-27-2008, 02:41:09 PM
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Ray Cardoza Ray Cardoza is offline
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Default Re: starting my first restoration project

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Originally Posted by theo b View Post
I am about to begin restoring a FB 1-1/2 hp Gas engine. I would like to get the whole thing cleaned up by sandblasting it. Any suggestions before I start like what should or should not be blasted, what type of blast material, etc. I will be disassembling the unit completely. Any helpful internet links would be appreciated as well.
DONT blast the bearing sets unless you plan on replacing them. dont get the crankshaft either where the connecting rod meets the throws. just watch what youre blasting.
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Old 06-27-2008, 02:41:23 PM
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Default Re: Starting my first restoration project

You can start here: http://www.old-engine.com/abrasive.shtml but the answer may be a pressure washer. Or in my case, back with my first engine, a trip on the trailer to the car wash.
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Old 06-27-2008, 02:46:21 PM
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Default Re: starting my first restoration project

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Originally Posted by Ray Cardoza View Post
DONT blast the bearing sets unless you plan on replacing them. dont get the crankshaft either where the connecting rod meets the throws. just watch what youre blasting.
Get yourself plenty of masking tape and use two or three layers of it in the appropriate places. I also stuff all holes with paper towels before bead blasting.

Don't overlook the electrolysis methods found on this site.
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Old 06-27-2008, 07:58:05 PM
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Larry Evans Larry Evans is offline
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Default Re: Starting my first restoration project

Quote:
Originally Posted by theo b View Post
I am about to begin restoring a FB 1-1/2 hp Gas engine. I would like to get the whole thing cleaned up by sandblasting it. Any suggestions before I start like what should or should not be blasted, what type of blast material, etc. I will be disassembling the unit completely. Any helpful internet links would be appreciated as well.
Theo,

Regarding disassembly, lots of folks suggest it is best to NOT remove the flywheels from the crankshaft unless there is a good reason to do so such as replacing a gear, straightening a bent shaft, etc. as this can lead to potential problems later on.

There have been several very good suggestions already given but you might be interested in taking a look at:
http://www.oldengine.org/members/levans/fm3hp/
which is a series of pictures and comments I posted a few years ago of a 3 hp Fairbanks Morse Z restoration. I used a power wire brush instead of sandblasting but you might pick up some ideas of tools and techniques that might help.

Regards,
Larry Evans
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Old 06-28-2008, 01:39:54 AM
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Gary Pflum Gary Pflum is offline
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Default Re: Starting my first restoration project

Take plenty of reference pictures before, during, and afteralong with notes.
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Old 06-28-2008, 02:16:31 AM
Ray Freeman Ray Freeman is offline
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Default Re: Starting my first restoration project

I've had good results using Bicarb Soda for blasting. Its not hard on the cast iron like garnet and any that does get where it shouldn't dissolves on contact with oil or water.
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