<div dir="ltr"><div class="gmail_default" style="font-size:small">Hi Paul,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">That is a great suggestion about trying it once the heads are hot, particularly for an aluminum head engine. Great advice!</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Tue, Nov 11, 2025 at 5:18 AM Paul Parkanzky <<a href="mailto:parkanzky@gmail.com">parkanzky@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Are you trying to get them out on a hot or cold engine? Toss the ratchet with the plug wrench and a pair of thick gloves (for the heat) in the center console and next time he parks it after a nice long drive on the highway have him try the plugs right away. That aluminum head will have a much higher coefficient of linear expansion than steel so getting it good and hot should give you a better shot.</div><div><br></div><div>-Paul</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Nov 10, 2025 at 11:59 PM John T Blair <<a href="mailto:jblair1948@cox.net" target="_blank">jblair1948@cox.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:16px"><div id="m_8678888934215367342m_-1629173282330737631ydp9cf4150fyahoo_quoted_3356569708">
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On Monday, November 10, 2025 at 07:41:27 PM EST, you wrote: <br></div><div><br></div><div>>I am a big believer in impact wrenches, air or electric. It is that fast, hard whack they give </div><div dir="ltr"><span>></span>that actually puts less torque against the threads. Penetrating oil may or may not do </div><div dir="ltr"><span>></span>anything, but if you wanted to soak them down overnight and then hit it with an impact </div><div dir="ltr"><span>></span>wrench in the morning, I would not be surprised if they all came out without any damage.</div><div><div id="m_8678888934215367342m_-1629173282330737631ydp9cf4150fyiv5900319137"><div><div dir="ltr"><div style="font-size:small" dir="ltr"><span>></span><br clear="none"></div><div style="font-size:small" dir="ltr"><span>></span>If they do not need changing at this point (new plugs can last 100K miles) you might just </div><div style="font-size:small" dir="ltr"><span>></span>want to leave sleeping dogs lie.</div></div><div><br></div><div dir="ltr">Douglas,</div><div dir="ltr"><br></div><div dir="ltr">Currently that's what we are doing. He got it back together as I was leaving. He said he fired it up, and took for a test drive, no CIL, ran fine. But this is something I've been afraid of <br></div><div dir="ltr">with the cars going 100Kmi / plug change. We really don't know how many miles are on these plugs as he's the 3rd owner. I was figuring that if he was going to be in there, why not changed the plugs. But when we ran into this problem he and I agreed, "if it aint broke, don't fix it".</div><div dir="ltr"><br></div><div dir="ltr">But I've got an 06 Scion xB with 64K mi, and a 12 second gen xB with 74Kmi and neither has had the plugs changed. So I'm worried I may have the same problem.<img title="Emoji" alt="Emoji" style="padding: 0px 2px; vertical-align: middle;" width="16" height="16"></div><div dir="ltr"><br></div><div dir="ltr">If we decide to get the plugs out in the near future, I'll keep you posted, but don't hold your breath. <br></div><div dir="ltr"><br></div><div dir="ltr">Thanks to all that responded.</div><div dir="ltr"><br></div><div dir="ltr">JohnT</div></div></div></div></div></div></div></div>
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