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Author Topic: spark plugs too HOT  (Read 3842 times)

Offline black82

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spark plugs too HOT
« on: September 10, 2008, 04:32:50 pm »
i have a 454 in my truck and according to the ground strap the autolite 24 plug is too hot does anyone have any recommendations of what ones to use
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Offline VileZambonie

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Re: spark plugs too HOT
« Reply #1 on: September 10, 2008, 05:19:16 pm »
According to the ground strap?  ???

What year is your engine?
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline black82

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Re: spark plugs too HOT
« Reply #2 on: September 10, 2008, 06:01:55 pm »
The ground strap indicates the heat range of the spark plug    idk what year the block is
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Offline DnStClr

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Re: spark plugs too HOT
« Reply #3 on: September 13, 2008, 12:21:06 am »
Ground strap info- I never knew this before. Thanks black82.
http://www.carcraft.com/howto/116_0703_spark_plug_guide/ignition_timing.html

Ground Strap differences
« Last Edit: September 13, 2008, 12:41:08 am by DnStClr »
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Don
87 Chevy Silverado

Offline VileZambonie

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Re: spark plugs too HOT
« Reply #4 on: September 13, 2008, 12:04:45 pm »
Quote from: black82 on September 10, 2008, 06:01:55 pm
The ground strap indicates the heat range of the spark plug    idk what year the block is

So you are saying you're reading your plugs and the ground electrode appears to discolored making you think the plug is too hot. What is your ignition timing? If you want to run Autolites use plug #145
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,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline black82

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Re: spark plugs too HOT
« Reply #5 on: September 14, 2008, 11:58:49 am »
http://www.angelfire.com/fl4/pontiacdude428/Readplugs.html
this write up is what i was going off of to say they were to hot... my timing is at 38 the motor is prob  10:5 to 1
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