torque specs for 300 upgrade
#1
torque specs for 300 upgrade
hay just got all my parts for 300 upgrade but did not get manual yet anyone have the torque specs for the cylinder and head bolts ? what main jets are u guys using for 300 jug, all free upgrades big gun k&n no backfire screen no snorkle? 128 now
#2
RE: torque specs for 300 upgrade
Ok...here it is for the head
*Apply molybdenum disulfide grease to the cylinder head bolts (8mm allen) Apply to the seating surface of the bolt and the threads.
*Temporarily tighten the cylinder head bolts (8mm allen) to 11.0 ft-lbs to seat the head.
then do a final torque to 34 ft-lb
* Torque the 6mm bolts in the cam gear valley to 8.5ft-lb
Here are the torque specs for everything else on the top end.
Air Suction Valve cover bolts 87in-lb
Cylinder Head cover bolts 69 in-lb
Spark plug 115 in-lb
Camshaft cap bolts 104 in-lb (note sequence below)
Camshaft sprocket bolts 87 in-lb (blue locktite)
Cylinder head bolts (6mm bolt) 8.5 ft-lb or 104 in-lb
Cylinder Head (8mm allen) 11 ft-lbs first torquing
Cylinder Head (8mm allen) 34 ft-lbs second torquing
Hose fitting 115 in-lb (blue locktite)
Camshaft chain guide mounting bolt 18 ft-lb
Camshaftchain guide bracket bolt 87 in-lb
Carburetor holder mounting bolt 104-in-lb
Cam chain tensioner Mounting bolts 87 in-lbs
Cam chain sub tensioner bolt 11 ft-lb
Inspection and rotor plug 22 in-lb
camshaft cap torque sequence (sung them down first...use assembly lube. be gentle with the cams this is the weak link in the top end...Ask EMS!)
[IMG]local://upfiles/3400/3EDEF3A6338F4B1A9F9BFFE6F015E74C.jpg[/IMG]
*Apply molybdenum disulfide grease to the cylinder head bolts (8mm allen) Apply to the seating surface of the bolt and the threads.
*Temporarily tighten the cylinder head bolts (8mm allen) to 11.0 ft-lbs to seat the head.
then do a final torque to 34 ft-lb
* Torque the 6mm bolts in the cam gear valley to 8.5ft-lb
Here are the torque specs for everything else on the top end.
Air Suction Valve cover bolts 87in-lb
Cylinder Head cover bolts 69 in-lb
Spark plug 115 in-lb
Camshaft cap bolts 104 in-lb (note sequence below)
Camshaft sprocket bolts 87 in-lb (blue locktite)
Cylinder head bolts (6mm bolt) 8.5 ft-lb or 104 in-lb
Cylinder Head (8mm allen) 11 ft-lbs first torquing
Cylinder Head (8mm allen) 34 ft-lbs second torquing
Hose fitting 115 in-lb (blue locktite)
Camshaft chain guide mounting bolt 18 ft-lb
Camshaftchain guide bracket bolt 87 in-lb
Carburetor holder mounting bolt 104-in-lb
Cam chain tensioner Mounting bolts 87 in-lbs
Cam chain sub tensioner bolt 11 ft-lb
Inspection and rotor plug 22 in-lb
camshaft cap torque sequence (sung them down first...use assembly lube. be gentle with the cams this is the weak link in the top end...Ask EMS!)
[IMG]local://upfiles/3400/3EDEF3A6338F4B1A9F9BFFE6F015E74C.jpg[/IMG]
#3
RE: torque specs for 300 upgrade
Oh...ya might need this http://www.transducertechniques.com/torque.cfm
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