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Power Products AH47 help


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  #1  
Old 12-07-2013, 04:59:38 PM
thambach thambach is offline
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Question Power Products AH47 help

Hi all,

I am working to restore my first small engine, a Power Products AH47 type F1033L. I plan to disassemble as much as possible and bead blast the aluminum and steel parts. I will paint the steel with aluminum finish spray paint, but I was going to leave the aluminum parts bare after bead blasting. Anyone have any thoughts on this? Will the bead blasting be OK to do and will those parts left unpainted be OK?

Any opinions and/or advice for a newbie would be greatly appreciated.

BTW, this engine was used by my grandfather and his sons to run a grain elevator and possibly other jobs around the farm.

Thanks.
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  #2  
Old 12-07-2013, 09:20:56 PM
K-Tron K-Tron is offline
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Default Re: Power Products AH47 help

I would be hesitant to glass bead the surface if you want a nice finish. Glass beading will leave the finish dulled. If you want to make it look nice, I would suggest applying rock miracle paint stripper to the part, and then run it over a polishing wheel. I polished up my AH-36 and it looks pretty nice. It has not faded or shown any sides of corrosion and I cleaned it up about 6 months ago now. It looks better than the pictures I have shown. It really glimmers when it is out in the sun.





Chris
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Old 12-08-2013, 12:56:48 AM
Ed Radtke Ed Radtke is offline
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Default Re: Power Products AH47 help

Thoroughly degrease the aluminum parts then blast with walnut shells.If you would then like to polish it,it will have a MUCH smoother surface than bead blasting and will be MUCH easier to polish. BTW,walnut shells makes it look factory new.A clear coat will prevent oxidation.
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Old 12-08-2013, 02:31:16 PM
Kammer0072000 Kammer0072000 is offline
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Default Re: Power Products AH47 help

This was done with a wire wheel and aluminum paint. I was happy with the finish. Both engine and tank bases were left bare.



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Old 12-09-2013, 01:46:07 PM
thambach thambach is offline
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Default Re: Power Products AH47 help

Thanks for the tips guys.

Another question: How do I remove this cover on the left side? Does it thread on or should it slide off the shaft? I've tried turning it and tapping it but I'm afraid I'll damage the crank or piston if I get much more violent.
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Old 12-09-2013, 03:17:17 PM
thambach thambach is offline
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Default Re: Power Products AH47 help

Here are a few pics of how I found it in my Dad's shed 15+ years ago. Just now getting around to restoring it.
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Old 12-09-2013, 03:19:26 PM
thambach thambach is offline
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Default Re: Power Products AH47 help

Beautiful engine, Kammer! That's exactly how I hope mine looks when I'm done.
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Old 12-09-2013, 10:23:46 PM
K-Tron K-Tron is offline
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Default Re: Power Products AH47 help

It looks like you have a nice candidate for a restoration. The flywheel is not threaded. It is held onto the crank by a taper and a key. If you tap the sides of the flywheel with a rubber mallet, the flywheel will come off of its taper and it will slide out of place. Behind the flywheel you will find the ignition plate, points, coil, etc. etc. The biggest problem with these engines is the connecting rod. If the engine is seized, or doesnt turn all of the way the rod has likely broken or become bent out of shape. All of the model AH-36 engines I have had bent rods in them. I have replaced them with AH-47 rods which are a little more stout, but still marginal at best. Hopefully your engine turns over!

Chris
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Old 12-10-2013, 01:16:28 PM
Kammer0072000 Kammer0072000 is offline
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Default Re: Power Products AH47 help

Another way to remove the flywheel is to thread the nut back onto the shaft just to the point where it is flush with the end of the shaft. The nut will protect the threads and the end of the shaft. Now strike the end of the shaft with a hammer. The sudden vibration of the blow will cause vibrations in the shaft knocking the flywheel of the taper. A moderate blow is required with a fair sized hammer. If after a few strikes it doesen't come off, try backing the opposite end of the shaft against something solid. If it's really on there (can't see this on such a small engine but ???), get a large 3 jaw puller and install it on the flywheel. Tighten it up and now strike the end of the puller. The combined force of the strike blow plus the pressure from the puller should pop that flywheel off like nothing. I know it doesn't seem logical but it really does work. Once you do it once, you'll get a feel for it.

Best of luck!
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Old 12-10-2013, 02:10:03 PM
thambach thambach is offline
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Default Re: Power Products AH47 help

Thanks guys. I tried tapping the sides of the flywheel with a mallet last night but it didn't move. Seems that the shaft has a lot of rust and may have the flywheel stuck unusually tight. I will try the nut and puller method later today.
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