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Old 10-22-2013, 03:38 PM   #1
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tightening a spark plug?


I got a kit for my leaf blower of an airfilter, gas filter and spark plug.
I have a torque wrench, but it is too small to fit my spark plug wrench. I have adapters that go down, but none that go up.
I put it in and tightened it a hair beyond tight. It seems to run okay.
Do I just go with that, or is the proper torque somehow essential?

It is the first spark plug I have ever changed. Although I have owned lawnmowers for 40 years, they seem to last about 6 years (maybe 120 hours of use) before a catastrophic problem unrelated to the spark plug.
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Old 10-22-2013, 03:57 PM   #2
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tightening a spark plug?


I'm 60 and have owned dozens of mowers and mow 8 lawns a week and have never once torqued a spark plug. Should be just fine with what you did.
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Old 10-22-2013, 04:53 PM   #3
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tightening a spark plug?


All I have done when putting in Spark plugs, is finger tighten them, then take the socket and tighten until snug, not placing a whole lot of muscle behind it. The worse thing you want to do, is over tighten and strip out the threads on the head.

Also before putting the plug in, you should take a put some oil on the threads, to keep it from seizing in the head.
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Old 10-22-2013, 10:36 PM   #4
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tightening a spark plug?


aLL my equipment is always rigged up due to me being so cheap. My plugs are always just finger tight. I switch from one machine to another all the time, and I like to make sure things run properly by checking what the plug is doing.
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Old 10-24-2013, 01:08 PM   #5
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tightening a spark plug?


Just snug is fine. I put anti-seize compound on the threads, and I bought one of those HF Plug media blasters to clean my plugs. Works really good, but you need to own an air compressor. Plugs rarely go bad.
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Old 10-24-2013, 02:43 PM   #6
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tightening a spark plug?


All i have ever done is this. Check with feeler gauge to make sure gap is correct then just snug tight.
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Old 10-24-2013, 05:39 PM   #7
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tightening a spark plug?


mj12 is making a huge mistake by just finger tightening. It come loose and it will cause over heating, low compression ECT.
I've seen heads get so hot from a loose plug it melted the threads and blew out the spark plug.
All because of being to cheap to buy a $2.00 spark plug.
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Old 10-24-2013, 06:01 PM   #8
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tightening a spark plug?


Quote:
Originally Posted by joecaption View Post
mj12 is making a huge mistake by just finger tightening. It come loose and it will cause over heating, low compression ECT.
I've seen heads get so hot from a loose plug it melted the threads and blew out the spark plug.
All because of being to cheap to buy a $2.00 spark plug.
Price of the plug has nothing to do with it coming loose, due to the head got red hot.
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