Stripped Spark Plug Hole

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Nov 3, 2007 | 07:22 AM

#11

geotrash

Winching

Joined: Jul 2007

Posts: 504

Likes: 58

From: Richmond, VA

RE: Stripped Spark Plug Hole

A heli-coil done properly will work fine in aluminum heads. I put one in my toyota 22R engine years ago and it held another 120,000 miles until i sold the car. They are generally as strong as the original threads. I didn't remove the head but it would have made the job a little easier.

http://www.popularmechanics.com/auto...o/4212608.html

Dave

Nov 3, 2007 | 08:07 AM

#12

Disco Mike

Administrator

Joined: Apr 2006

Posts: 25,707

Likes: 107

From: Denver, Colorado

RE: Stripped Spark Plug Hole

Quote:

ORIGINAL: humroot

I thought the heads are Aluminum and can't be tapped. Is that not so?

Good news is I got a thread chaser more than halfway through before it stopped. I could have gone further, but with my luck it would have broke off inside. The spark plug is in, but not seated all the way, but very tight. If I'm lucky, the head gaskets will go and my Extended Warranty will pick up the cost.

(Yeah, right.)

Don't get to excited about an extended warranty covering this problem, they may refuse blaming a mechanics poor installation of plugs as the cause and not Rovers workmanship.