[Shop-talk] Impact seems...weak

[eric at megageek.com]

Scott,

First, many of the impact 'innards' I've seen are ?nylon? plates that spin 
in a off center chamber.  Nothing to dry rot.
But the thing to ask is, when you first plug it into air, any leaking 
noise?  Then, when you trigger it, do you hear any air rushing noise that 
you don't normally hear when using an impact?  Also, does it feel like the 
gun is 'bucking' or just 'whimpering' when it is trying?

Next, I've seen shops put tires one CRAZY tight!  My guess is that "there 
is NO penalty if the nut is too tight, but if it is too loose and comes 
off, that could be a major lawsuit."  So they "air" on the side of 
caution.  (bad pun)

Moose





From:   Scott Hall <scott.hall.personal at gmail.com>
To:     "shop-talk at autox.team.net" <Shop-talk at autox.team.net>
Date:   02/28/2025 10:16 AM
Subject:        [Shop-talk] Impact seems...weak
Sent by:        "Shop-talk" <shop-talk-bounces at autox.team.net>



Fellas,

I'm re-organizing the new garage. I haven't set up new big compressor yet, 
so I've been working with the contractor model I used around the house 
(135 psi, oil-lube contractor model--I've actually been pleasantly 
surprised).

I found my old IR2131 in a box a while back--it's been in that box since 
maybe 1999. Before that it was used maybe ten times, total.

I dumped some air tool oil in the intake and it spun. I was going to 
rotate my tires yesterday, and it wouldn't remove the lug nuts.

Now to be fair, I couldn't get them off with a breaker bar, either. But 
the gun is supposed to be better than 600 lb. ft., IIRC. I should have 
spun those off no problem. I wouldn't have ever used it at more than 100 
p.s.i. on the old compressor, so it shouldn't be lacking there.

I thought maybe it needed a rebuild, but before I do it I thought I'd ask 
you guys. Do these things just 'age'? I remember pulling apart other 
impacts in the shop back then, but I don't remember their guts. Maybe a 
seal has dry-rotted?

Or are tire shops just sticking wheels on tighter now? I couldn't budge 
that thing with an 18: breaker and everything I had.

Scott_______________________________________________

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