Header installation question
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Tourer
Joined: Jul 2008
Posts: 342
Likes: 1
From: Greenville, South Carolina
Header installation question
Installed a header and I do not have a service manual for 2012 Touring bikes. I referred back to my old 2003 Touring service manual for torqueing measurements. The service manual said 60-80 inch lbs for the head bolts, so I went 70 inch lbs. Is this about right? Thanks
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
09:
Tighten the exhaust system as follows:
a. Tighten the top nut of the front cylinder head exhaust
flange to 9-18 in-lbs (1-2 Nm). Tighten the bottom
nut to 100-120 in-lbs (11.3-13.6 Nm). Final tighten
the top nut to 100-120 in-lbs (11.3-13.6 Nm).
b. Tighten the bottom nut of the rear cylinder head
exhaust flange to 9-18 in-lbs (1-2 Nm). Tighten the
top nut to 100-120 in-lbs (11.3-13.6 Nm). Final tighten
the bottom nut to 100-120 in-lbs (11.3-13.6 Nm).
the torque spec for the tranny end cover bolts os now 25 ft lbs. check these esp. the 2 bolts that hold the exhaust mount.
mike
Tighten the exhaust system as follows:
a. Tighten the top nut of the front cylinder head exhaust
flange to 9-18 in-lbs (1-2 Nm). Tighten the bottom
nut to 100-120 in-lbs (11.3-13.6 Nm). Final tighten
the top nut to 100-120 in-lbs (11.3-13.6 Nm).
b. Tighten the bottom nut of the rear cylinder head
exhaust flange to 9-18 in-lbs (1-2 Nm). Tighten the
top nut to 100-120 in-lbs (11.3-13.6 Nm). Final tighten
the bottom nut to 100-120 in-lbs (11.3-13.6 Nm).
the torque spec for the tranny end cover bolts os now 25 ft lbs. check these esp. the 2 bolts that hold the exhaust mount.
mike
Seasoned HDF Member
Joined: Sep 2009
Posts: 25,295
Likes: 2,429
From: Eastern NE
Need to tighten/torque these in sequence to ensure the gaskets seat:
- Tighten top nut on front cyl 9-18 in/lb.
- Tighten bottom nut on front cyl 100-120 in/lb.
- Tighten top nut on front cyl 100-120 in/lb.
- Tighten bottom nut on rear cyl 9-18 in/lb.
- Tighten top nut on rear cyl 100-120 in/lb.
- Tighten bottom nut on rear cyl 100-120 in/lb.
Ride for 50 miles, let cool & re-torque all to 100-120 in/lb.
- Tighten top nut on front cyl 9-18 in/lb.
- Tighten bottom nut on front cyl 100-120 in/lb.
- Tighten top nut on front cyl 100-120 in/lb.
- Tighten bottom nut on rear cyl 9-18 in/lb.
- Tighten top nut on rear cyl 100-120 in/lb.
- Tighten bottom nut on rear cyl 100-120 in/lb.
Ride for 50 miles, let cool & re-torque all to 100-120 in/lb.
Extreme HDF Member
Joined: Jun 2011
Posts: 10,216
Likes: 224
From: Glendale AZ
No disrespect to iceman and mike but I go by feel on those bolts and never had to worry about under- torquing. I dont trust a torque wrench for bolts like those as theres a world of hurt if you snap those off!
4th Gear
Joined: Aug 2010
Posts: 8
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From: Inland Empire Southern California
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From: Glendale AZ
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Road Warrior
Joined: Jul 2010
Posts: 1,598
Likes: 3
From: 27°51' N, 082°17' W
Use a universal joint on your socket and torgue wrench.
I use a Snap-On 1/2 sae x 3/8 drive mid-well thinwall flex socket, they run right around $55, but it works perfect on upper and lower exhaust nuts, never had a problem using this setup with a torque wrench and 6 inch extention.
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