Spark plug torque specs

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JPerkins323
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Spark plug torque specs

Post by JPerkins323 »

Changing spark plugs on my 0540 today. What do I torque the plugs to? Thanks in advance.


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"BUZZ KILL"

12x6.8 .090 thousands 1/2 deck hunt boat with .125 backup plates and a lil' sheet of stainless. 0540 s/v spinning 5 blade sabers.....Ready to party.

Built by D&E Metal works in Homestead, FL: (786) 412-9018

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kwanjangnihm
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Re: Spark plug torque specs

Post by kwanjangnihm »

420 in.-lbs. (or 35 ft.-lbs.)

just changed mine out and torqued to 35ft-lbs - used new copper crush washers (+ a dab of never seize)
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JPerkins323
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Re: Spark plug torque specs

Post by JPerkins323 »

Awesome thank you sir


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"BUZZ KILL"

12x6.8 .090 thousands 1/2 deck hunt boat with .125 backup plates and a lil' sheet of stainless. 0540 s/v spinning 5 blade sabers.....Ready to party.

Built by D&E Metal works in Homestead, FL: (786) 412-9018

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Planeguy
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Re: Spark plug torque specs

Post by Planeguy »

New gaskets are a good idea. Assuming you are using these: http://www.aircraftspruce.com/catalog/e ... ckkey=4531
The old ones can be softened and reused by heating them until they glow and quenching them in water (copper works just the opposite of steel).

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mojoe
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Re: Spark plug torque specs

Post by mojoe »

I have a set of those washers on order. Should I leave the little washers that come on the plugs or remove them an install just the copper washers?

Thanks
Mark 7:9

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Planeguy
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Re: Spark plug torque specs

Post by Planeguy »

mojoe wrote:I have a set of those washers on order. Should I leave the little washers that come on the plugs or remove them an install just the copper washers?

Thanks
Sorry, I made the assumption you were using aircraft engine plugs. They would have come with the copper washers. Someone with automotive plug experience will have to field that question.

Gary S
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Re: Spark plug torque specs

Post by Gary S »

I had to use the copper on a 0320 because with out them the plugs leaked. They are better and yes you have to take the aluminum washers off. I use a pair of dykes to do it. Or should I say a pair of diagonal cutters?

mwood7800
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Re: Spark plug torque specs

Post by mwood7800 »

Champions work with the regular washers on my 540. I tried some denso without the copper washers and burned up 2 new cylinders. I swap out the champ d16 once a year only because they get rusty.

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