Water Passage Bolt & Nut Torque Specs
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Rep Power: 178 Water Passage Bolt & Nut Torque Specs
These are for the bolts passing through the metal gasket (item #9) as shown in the drawing and into the cylinder block, just below the cylinder head. The Factory Service Manual does not seem to have the torque specs. Others on the net say the same. They are 8 mm diameter bolts and nuts, five altogether.
This site suggests a certain Honda's water passage bolts are torqued to 33 ft-lbs, and water outlet bolts and nuts are torqued to 16 ft-lbs: http://www.collegehillshonda.com/ins...rque_specs.pdf
This generic guide says apply about 19 ft-lbs (dry) of torque for an 8 mm diameter bolt: http://www.xrfchassis.com/images/PDF...ence_Chart.pdf
These Porsche head gasket changeout instructions say 19 ft-lbs for any 8 mm bolts:
http://www.clarks-garage.com/shop-manual/cyl-02.htm
The intake manifold is attached to the cylinder head with 8 mm nuts and bolts, torque spec 17 ft-lbs.
The exhaust manifold is attached to the cylinder head with 8 mm nuts and bolts, torque spec 23 ft-lbs.
This guy said he went to 28 ft-lbs on his 7th generation Civic: http://www.7thgenhonda.com/forum/sho...d.php?t=118353
We're bolting into aluminum, right?
What do people here think?
<img src="http://www.hondapartsnow.com/diagrams/large/water-pump-sensor-2151675.png" alt="2003 Honda Civic 2 Door LX KA 5MT Water Pump - Sensor"/>
This site suggests a certain Honda's water passage bolts are torqued to 33 ft-lbs, and water outlet bolts and nuts are torqued to 16 ft-lbs: http://www.collegehillshonda.com/ins...rque_specs.pdf
This generic guide says apply about 19 ft-lbs (dry) of torque for an 8 mm diameter bolt: http://www.xrfchassis.com/images/PDF...ence_Chart.pdf
These Porsche head gasket changeout instructions say 19 ft-lbs for any 8 mm bolts:
http://www.clarks-garage.com/shop-manual/cyl-02.htm
The intake manifold is attached to the cylinder head with 8 mm nuts and bolts, torque spec 17 ft-lbs.
The exhaust manifold is attached to the cylinder head with 8 mm nuts and bolts, torque spec 23 ft-lbs.
This guy said he went to 28 ft-lbs on his 7th generation Civic: http://www.7thgenhonda.com/forum/sho...d.php?t=118353
We're bolting into aluminum, right?
What do people here think?
<img src="http://www.hondapartsnow.com/diagrams/large/water-pump-sensor-2151675.png" alt="2003 Honda Civic 2 Door LX KA 5MT Water Pump - Sensor"/>
Last edited by honda.lioness; 05-29-2016 at 05:03 PM.
#2
If you think a good mechanic is expensive, try hiring a bad one
Re: Water Passage Bolt & Nut Torque Specs
I'd go with 16 ft-lb as my guess. The goal is to make the gasket seal, and the bolts and the part not fall out.
It's not like a wheel is gonna fall off if you don't get these bolts tight enough
It's not like a wheel is gonna fall off if you don't get these bolts tight enough
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Rep Power: 178 Re: Water Passage Bolt & Nut Torque Specs
ezone, thank you. I do not want coolant to leak out. I am not sure what kind of pressures and temps these bolts and nuts see.
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