Spark plug tube torque

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Old 05 Dec 2011, 01:45 pm   #1 (permalink)
Jaybird
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Default Spark plug tube torque

1998 Camry I4 5SFE engine
I'm trying to confirm the torque on the 30mm spark plug tube nuts that
secure the valve cover..
Haynes manual shows 33 FTLB and Toyota shows 17 FTLB. Which one is
correct ? 17 seems too low.
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Old 07 Dec 2011, 08:59 am   #2 (permalink)
Jaybird
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Default Re: Spark plug tube torque

On Mon, 05 Dec 2011 14:45:26 -0500, Jaybird <Jaybird972@gmail.com>
wrote:

>1998 Camry I4 5SFE engine
>I'm trying to confirm the torque on the 30mm spark plug tube nuts that
>secure the valve cover..
>Haynes manual shows 33 FTLB and Toyota shows 17 FTLB. Which one is
>correct ? 17 seems too low.


After investigating, I've come to the conclusion that the torque specs
changed from Gen 3 to Gen 4. Both the Toyota and the Haynes manuals
confirm this. They increased the torque and I believe the rubber seals
are thicker on the later design. Toyota probably did this due to the
sealing problems with this engine.

Any Toyota techs out there that can confirm this?
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