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Spark Plug Heat Shield Tubes, How To Remove?
Posted April 19, 2004 at 12:19 pm
I got a dental mirror and a penlight, and it looks like a piece of the center of the center electrode is trapped between the shield and the hex. Looks like the EMI coil portion of the center electrode. No evidence of other chunks. I believe it's wedged tightly enough that I can't pull it out with tweezers or a narrow screwdriver, or tape on a stick or compressed air or vacuum. My best bet is to remove or open up the heat shield. Does it come off, if so, how? I don't have the hand room or leverage to tug straight out with any force, as it angles toward the firewall. I'm thinking of a careful incision with a cutting wheel of a Dremel tool, peeling it open and then plucking out the piece. Then I'll vacuum so as not to drop anything in when I put a new plug in, then bend the heat shield back into place.
Advice? A better plan?
Posted April 19, 2004 at 04:39 pm
Posted April 19, 2004 at 05:54 pm
Posted April 19, 2004 at 08:11 pm
Posted April 20, 2004 at 12:08 am
From what I remember, the tool appeared to be like a rubber tube with a long bolt (maybe use a bolt with an eyelet at one end?) through it and large washers at each end. You insert the tool into the spark plug tube and tighten the top washer down on the rubber tube. The rubber tube 'scrunches' outwards , grabbing the spark plug tube, and you pull the bolt to get the tube out.
I guess the tough part about making the tool yourself, would be finding the right sized rubber tube with a thick wall to it. Maybe you can layer 2 hoses or something. I'm not even sure if this would be worth the effort.
Posted April 20, 2004 at 07:22 am
I guess I'll cut/bend it carefully, trying to leave it intact as much as possible to shape back into place enough to block some exhaust heat.
Posted April 20, 2004 at 09:46 am
Oh boy, you gatta love it when stuff is orientated like that . Seems like every engine has it's 'hard to reach' part.
There's just no room to get leverage - it's plug #5, which is angled toward the firewall and has the power brake booster a few inches away. I'm NOT taking that off to do this job.
Posted April 20, 2004 at 07:10 pm