Question about Motorcycles
The rocker gaskets were leaking. I took the two rocker covers off. And now I need to put them back on. But I need the torque poundage for the bolts.
Posted by Anonymous on
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Posted on Jan 02, 2017
Clyinder and head:
In a cross patern
Tighten bolts to 8-10 ft-lbs (11-14 Nm).
Tighten bolts to 13-15 ft-lbs (18-20 Nm).
Loosen all bolts.
After screws are loosened from initial torque, tighten
head bolts in three stages. Tighten fasteners in
increasing numerical sequence (i.e. – 1, 2, 3 and 4). Tighten each screw to 8-10 ft-lbs (11-14 Nm).
Tighten each screw to 13-15 ft-lbs (18-20 Nm).
Mark cylinder head and head screw shoulder with a line.
Turn all bolts an additional 85 -95 .
Slowly snug all fasteners
in small increments (one turn at a time). Use a cross
pattern on the four large bolts) that fasten the lower
rocker box to head. This will bleed the tappets.
Tighten bolts to 18-22 ft-lbs (24-30 Nm).
Tighten bolts to 11-13 ft-lbs (15-18 Nm).
Tighten bolts to 135-155 in-lb (15-18 Nm).
Install upper rocker covers.
Place a new inner gasket on lower rocker box
Place a new lower gasket on lower rocker cover.
Install upper rocker cover using screws with washers
and new fiber seals. Tighten screws to 10-14 ftlbs
Posted on Jan 04, 2010
SOURCE: I have a slight leak
If you're talking about the gaskets on the upper and middle plate, no problem. The bolts are supposed to torque to 100 inch pounds but I've found that an "educated wrist" can tighten them well enough so that they won't leak.
If you are talking about the rocker arm plate where it bolts to the head, this is a different matter. You'll have to replace them one at the time. Bring the piston to top dead center on the compression stroke and remove the center plate replace the gaskets, Then when you put it back, the pushrods are color coded as to where they go and the two sizes of bolts have specific torques. So, let me know if this is what you're doing and be more specific.
Posted on Feb 09, 2011
SOURCE: Need to know the torque
1/4" bolts torque to 10-13 foot pounds
5/16" bolts torque to 15-18 foot pounds
Posted on Feb 17, 2011
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