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jofre_69

06-08-2002 03:26 PM

spark plug gapping qusetion?

i need to know the gap needed for ngk tr 55 spark plugs. thanks in advance.

Patches

06-08-2002 04:37 PM

Re: spark plug gapping qusetion? (jofre_69)

The factory manual spec is .060". I gapped mine at .057"

Edit: Tightening torque is 11 lb.ft.

[Modified by Patches, 3:43 PM 6/8/2002]

AP	06-08-2002 05:13 PM

Re: spark plug gapping qusetion? (Patches)

Quote:

The factory manual spec is .060". I gapped mine at .057"

Edit: Tightening torque is 11 lb.ft.

[Modified by Patches, 3:43 PM 6/8/2002]

I did the same thing at .058 ...

THamilton

06-09-2002 10:23 AM

Re: spark plug gapping qusetion? (Patches)

Please clue me in. Why would you use a smaller than recommeded gap?

Thanks.

vettenuts

06-10-2002 07:09 AM

Re: spark plug gapping qusetion? (THamilton)

I have installed two sets of these plugs in two different cars. All of the plugs out of the box were at 0.057. I upped them to the specificed 0.060. In the end, I don't think the 0.003 will make any difference. You may want to just check them as they come out of the box to make sure you don't have a out of tolerance gap and then just install as delivered.

72 LT-1

06-10-2002 05:12 PM

Re: spark plug gapping qusetion? (jofre_69)

I gapped at .055 with no problems.

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