TOOLS - Air compressor oil...wow, that much of a difference?

M_Body_Coupe

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So a few years back I picked up a used IronHorse 60gal compressor (Model# 6160V1 by WOOD Industries). Had some teething problems to start off with, embarrassed to admit it, but the price was a steal (too good to be true as it turned out) and seeing as the compressor switch (another missed warning signal) had no wires running to it, the A-HOLE who hand-delivered that wreck to my house (from some 2 hrs. away, and no charge) was all too happy to grab my cash and run while I never had the chance to even test-run it (yeah, still pissed off about being caught up in the 'oh my, I finally have a 60 gal compressor' high).

OK, so as it turned out after wiring it up the reed valves were burnt, I took the heads off (5 hp pump, two heads) figured out what parts I needed and off I went shopping for the replacements. About $100 later I was sporting a running compressor with industrial strength air filters (Solberg FS-06-050) and some fancy water/moisture vent-off valving, etc...oh yeah baby, I was "King of the Hill" and rocking it!!! lol

I needed that because this build up was all about replacing my aged Cambell Housefeld 20 gal unit and prepping for the massive amount of airflow required to sustain my W2 head porting adventure (which it did in spades, thank you very much!).

....almost ready to make my point, hang in there...

So when I had originally fixed that broken compressor I purchased I used 1L of the 30 weight compressor oil the shop with the repair parts supplied me with. I understood this oil was not engine oil, etc, etc....and all was good.

Then early this year while working on something I walked by the compressor and it felt like I literally entered a tropical HOT zone!!! yikes...I grabbed my infrared thermometer and "wa wa wee wa" (thank you Borat), one of the heads was running super hot. OK, the valves burnt again, or maybe just the gasket...something was wrong.

Off I went replacing the parts, this time it actually was just the thin aluminum gasket (on this particular air pump) which looked to have burnt through, probably as the compressor was at times at nearly 100% duty cycle. But OK, problem solved.

...BUT...

I started to look more at compressor oil, which needed replacing (as I had not done so since getting it - about 3 yrs.) which is something I had previously ignored. Sure enough, I sourced some synthetic stuff locally (DeWalt part# D55001) and happily filled the pump crankcase.

Re-started the compressor and eagerly awaited the standard running temps to return....but....no such thing happened, in fact the NEW running temps are at least a full 10 deg (C) lower then what I was previously seeing with the mineral oil.

That's the big find...I honestly did NOT expect to see this. Those of you who have worked with air compressors in the past may naturally think of this as a 'no-brainer', but at least for me here this was a great outcome and a learning lesson.

To boot, the compressor does actually sound different, it is quieter, no complaints there!!

So there you have it, lesson learned, I will be using synthetic air compressor oil from now onwards.
 

Mikes5thAve

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Interesting. I have to fill my new to me 80 gallon so I'll look for synthetic. Probably helps too I have them in a room that's not heated.
Glad it was something simple. So far mine like yours has been good. When I got it I was told he bought it new and only used it to paint a car. It was disconnected so I never got to try it first.
The new one came from a friend.
 

volare 1977

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I have swayed away from air powered tools if I can. I rather use battery power stuff. I only use the compressor for the bead blaster.
 

M_Body_Coupe

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Interesting. I have to fill my new to me 80 gallon so I'll look for synthetic. Probably helps too I have them in a room that's not heated.
Glad it was something simple. So far mine like yours has been good. When I got it I was told he bought it new and only used it to paint a car. It was disconnected so I never got to try it first.
The new one came from a friend.
Mike,

That DeWalt oil was a Priness Auto purchase btw...easy!
 

Mikes5thAve

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Mike,

That DeWalt oil was a Priness Auto purchase btw...easy!

Thanks I'll have to remember that.

I had a compressor explode behind me last year. I've since become a Milwaukee nerd.

Ouch. I don't use the different tools regularely enough to go all battery and don't like running out juice in the middle of stuff. My 120v impact does get used a lot more then the air one but I have other stuff that I need air for.
 

AMC Diplomat

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and don't like running out juice in the middle of stuff. My 120v impact does get used a lot more then the air one but I have other stuff that I need air for.
I've never been in the middle of something with the Milwaukee and run out of power. The bigger batteries are truly amazing.

Yikes!

I hope/take it no one was hurt?

What was the root cause? Old tank and corrosion, or something more sudden?
It was a portable tank on wheels I bought at auction a few years ago. There were no outward signs that it was rusty on the inside. It burst on a seam. My driveway got the worst of it.
 

volare 1977

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I've never been in the middle of something with the Milwaukee and run out of power. The bigger batteries are truly amazing.
Same here with my dewalt stuff. Get the good batteries. I have one of those portable dewalt fans and that thing runs for a long time on a medium setting.
 

69-

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I'm running all Makita. The compressors (2) are only used for my scissor lift at the workshop and to blow the dripping pipes empty for my wife's garden at home.

Battery life is quite astonishing for the original batteries. :cool:
 

volare 1977

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I'm running all Makita. The compressors (2) are only used for my scissor lift at the workshop and to blow the dripping pipes empty for my wife's garden at home.

Battery life is quite astonishing for the original batteries. :cool:
I have tried the off brand batteries and they suck. I only use the Dewalt batteries bought at the store. Too many fake copies on the internet.
 

Mikes5thAve

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I don't use the battery stuff enough to keep batteries regularely charged. I have a drill and reciprocal saw.
If I'm doing a job that needs air tools it's several hours of use and I really can't be bothered with air hoses so it's use is pretty much down to sandblasting, cut off wheel or nibbler and air chisels etc.. at the same time I don't use them enough to justify the cost of the battery powered ones and they're bigger and heavier then the air ones.
 

AMC Diplomat

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I don't use the battery stuff enough to keep batteries regularely charged. I have a drill and reciprocal saw.
If I'm doing a job that needs air tools it's several hours of use and I really can't be bothered with air hoses so it's use is pretty much down to sandblasting, cut off wheel or nibbler and air chisels etc.. at the same time I don't use them enough to justify the cost of the battery powered ones and they're bigger and heavier then the air ones.
What I do like about the Milwaukee angle grinder is that is has an auto stop, so as soon as I let off the trigger it stops the death wheel from spinning. The weight of the battery is offset by the ability to take it anywhere. And it's not like it's really that heavy
 
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