Reply by SweetTea

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Posted on Ideas for rebuilding my Charger AirPro air compressor?

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478 posts in 1578 days

#1 posted 10-21-2018 02:46 PM

I d fix it right… that is a pretty nice compressor made by DeVilbiss, and it s probably something trivial, like not having the counterweight in the proper location (or missing?). Also, according to the parts diagram, it appears that both connecting rods are identical (same part numbers), so I doubt that is the issue unless you are talking about something different.


PS: If you do put an external pump on there – the current one is running at the motors rated speed since it s direct drive. To replicate with a pulley, you would just need 1:1 (ie: same size pulleys). If the pump you get needs a different speed, then there are plenty of calculators out there that will get you the correct sizes (such as this one over at the vintage machinery site).

- MrUnix

Well if it were possible to fix the current pump, I would certainly be open to that. When I ordered the rod kit, the instructions that came with the rod kit specifically stated not to use it as the inner rod as that would be a different part. I went ahead and put it on as the inner rod. And now it viberates the entire compressor very badly, and makes a load noise. I would describe the noise as a knocking of sorts that kind of sounds like the rods and pistons are not properly lubed.

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