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931 spark plug change

 
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emhewitt  



Joined: 12 Sep 2016
Posts: 2
Location: Rio Vista, CA

PostPosted: Sat Sep 26, 2020 12:28 am    Post subject: 931 spark plug change Reply with quote

My mechanical expertise is limited to things that easily screw or unbolt easily. In this case, those qualifications are falling short....How can I get a spark plug wrench the hard to reach plugs on my 1981 931?

Thanks
Michael
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Michael Hewitt
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peterld  



Joined: 10 Dec 2006
Posts: 784
Location: Noosa Heads QLD Australia

PostPosted: Sat Sep 26, 2020 12:35 am    Post subject: Reply with quote

Do you have the factory toolkit which came with the car? Excellent plug remover in there. Otherwise normal plug socket and several joints (wobblies).
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chuck21401  



Joined: 20 Feb 2005
Posts: 279
Location: Annapolis, MD

PostPosted: Wed Sep 30, 2020 12:04 pm    Post subject: Reply with quote

I removed the charge tube when I changed the plugs in my 931. At little extra work but less frustration with the plugs that are not easy to reach. Of course stick a rag in the lower pressure pipe to prevent anything from falling into the turbo. Also be sure to set the spark plug gap to spec...then tighten the plugs to torque spec.
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1981 Porsche 931


Last edited by chuck21401 on Thu Oct 01, 2020 9:18 am; edited 3 times in total
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Fasteddie313  



Joined: 29 Sep 2013
Posts: 2059
Location: MI

PostPosted: Thu Oct 01, 2020 1:08 am    Post subject: Reply with quote

The original tool is really great.. Itís not super fancy or anything but works perfectly.. I pull my plugs quite a bit.. Currently BR9ES..

I also always try to blow the spark plug wells out with compressed air before changing the plugs because dirt can get in there and stay..
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