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I'm a big fan of impact wrenches, but half-inch, IMO, could be overkill
(the battery DeWalt I have, IIRC, is rated over 200lb-ft). Also, I
haven't found air or battery triggers to be very 'featherable.'
I have a 3/8" Craftsman impact I got as part of a kit with an airless
compressor. Normally, I run pneumatic at 90PSI, but with it I would
start at, say, 50PSI and work up. Or, if all you have is a half-inch
start at maybe 30PSI. Make sure the socket is on straight so you don't
break the ceramic.
Bob
On 11/10/2025 3:09 PM, John T Blair wrote:
> Was over at my son's house this afternoon. He's working on his Ford
> F150 up with the turbo (can't remember what Ford calls that - economy
> of a 6 and power of a V8). He had to replace the valve (rocker box)
> cover as it was leaking as were the spark plug gaskets as the well the
> plugs were in were foll of oil. He managed to get it all done.Â
> However, we wanted to change the plugs. When he tried to break the
> 1st plug loose, it wouldn't budge. He was using a 3/8s" ratchet and
> breaker bar to no avail. We went looking for a 1/2" to 3/8" adapter
> so we could get more torque using a larger 1/2" ratchet and or breaker
> bar, but we couldn't find an adapter.
>
> Now this being said, I remember seeing something about using an impact
> wrench on an ezout because it turns so little that you don't break the
> ezout. I was wondering if this would work for a stuck spark plug? We
> did squirt some PB blast doen into the plug wll and let sit for about
> 5 min and tried again with the 3/8" drive breaker bar.
>
> So my question to the group is:Â Do you think that we could use an
> impact wrench to break the plug loose then once it's broken loose
> remove it with the ratchet?
>
> JohnT
>
> John T. Blair WA4OHZ    email: jblair1948@cox.net
> Va. Beach, Va                 Phone: (757) 495-8229
>
> 48 TR1800   48 #4 Midget   65 Morgan 4/4 Series V (B1106)
>     75 Bricklin SV1 (#0887)   77 Spitfire   71 Saab Sonett III
> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 65 Rambler Classic
>
> Morgan: http://autox.team.net/morgan/
>
> <http://autox.team.net/morgan/>Bricklin: http://www.bricklin.org
>
> <http://www.bricklin.org/>If you can read this            -
> Thank a
> teacher!
> If you are reading it in English - Thank a Vet!!
>
> From Dennis Prager - The American Trilogy:
> Â Â Â Â e pluribus Unum, "from many, one."
> Â Â Â Â In God We Trust
>     Liberty - the power of choosing, thinking, and acting for
>                  oneself; freedom from control or
> restriction
>
>
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I'm a big fan of impact wrenches, but half-inch, IMO, could be
overkill (the battery DeWalt I have, IIRC, is rated over 200lb-ft).
Also, I haven't found air or battery triggers to be very
'featherable.'<br>
<br>
I have a 3/8" Craftsman impact I got as part of a kit with an
airless compressor. Normally, I run pneumatic at 90PSI, but with it
I would start at, say, 50PSI and work up. Or, if all you have is a
half-inch start at maybe 30PSI. Make sure the socket is on straight
so you don't break the ceramic.<br>
<br>
Bob<br>
<br>
<br>
<div class="moz-cite-prefix">On 11/10/2025 3:09 PM, John T Blair
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1941839697.3633184.1762816187758@mail.yahoo.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div class="ydp8d52e3e8yahoo-style-wrap"
style="font-family:Helvetica Neue, Helvetica, Arial,
sans-serif;font-size:16px;">
<div>
<div dir="ltr" data-setdir="false">Was over at my son's house
this afternoon. He's working on his Ford F150 up with the
turbo (can't remember what Ford calls that - economy of a 6
and power of a V8). He had to replace the valve (rocker
box) cover as it was leaking as were the spark plug gaskets
as the well the plugs were in were foll of oil. He managed
to get it all done. However, we wanted to change the
plugs. When he tried to break the 1st plug loose, it
wouldn't budge. He was using a 3/8s" ratchet and breaker
bar to no avail. We went looking for a 1/2" to 3/8" adapter
so we could get more torque using a larger 1/2" ratchet and
or breaker bar, but we couldn't find an adapter. <br>
</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">Now this being said, I
remember seeing something about using an impact wrench on an
ezout because it turns so little that you don't break the
ezout. I was wondering if this would work for a stuck spark
plug? We did squirt some PB blast doen into the plug wll
and let sit for about 5 min and tried again with the 3/8"
drive breaker bar.  </div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">So my question to the group
is:Â Do you think that we could use an impact wrench to
break the plug loose then once it's broken loose remove it
with the ratchet?</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">JohnT</div>
<div dir="ltr" data-setdir="false"><br>
</div>
John T. Blair WA4OHZ    email: <a
class="moz-txt-link-abbreviated"
href="mailto:jblair1948@cox.net";>jblair1948@cox.net</a>
<div class="ydp8d52e3e8signature">
<div dir="ltr"
style="font-family:Helvetica, Arial, sans-serif;font-size:16px;">
<div class="ydpca89bbc3pasted-link">
Va. Beach, Va                 Phone: (757)
495-8229<br>
<br>
48 TR1800   48 #4 Midget   65 Morgan 4/4 Series V
(B1106)<br>
    75 Bricklin SV1 (#0887)   77 Spitfire   71 Saab
Sonett III<br>
                      65 Rambler
Classic<br>
<br>
Morgan:Â Â Â <a href="http://autox.team.net/morgan/";
rel="nofollow" target="_blank"
moz-do-not-send="true">http://autox.team.net/morgan/<br>
<br>
</a>Bricklin:Â Â Â Â <a href="http://www.bricklin.org/";
rel="nofollow" target="_blank"
moz-do-not-send="true">http://www.bricklin.org<br>
<br>
</a>If you can read this            - Thank a
teacher!<br>
If you are reading it in English - Thank a Vet!!<br>
<br>
From Dennis Prager - The American Trilogy:<br>
    e pluribus Unum, "from many, one."<br>
    In God We Trust<br>
    Liberty - the power of choosing, thinking,Â
and acting for <br>
                 oneself; freedom fromÂ
control orÂ
restriction <br>
<br>
<br>
</div>
<span style="white-space: pre-wrap">
</span></div>
</div>
</div>
</div>
</blockquote>
<br>
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