Box Stock

79cc Predator

R

rocketman

Member
Where can i get torque specs for this engine.? like head bolts rod bolts rocker cover , side cover. Valve lash in. + Ex. also a gasket kit.
Thanks
 
Bolt torque chart .any auto repair manual or google .
Clone or predator bolt torque , if the same size bolts .
Factory spec for lash probably .003 .
Owners manual ?
 
The first one i found with the search function .
This is from a 2015 post on Bob's. No idea if it's correct. There is some discussion on using ARP
bolts on various posts on Bob's.

Connecting rod bolt M8 x 1.25----- 10 ftlbs
Cylinder head bolt M10 x 1.25----- 25 ftlbs
Flywheel nut (special nut) M16 x 1.5----- 83 ftlbs
Rocker arm pivot lock nut (special nut) M6 x 0.5----- 7ftlbs
Rocker arm pivot bolt M8 x 1.25------- 17 ftlbs
Crankcase cover bolt M8 x 1.25-------- 17 ftlbs
Muffler mounting nuts M8 x 1.25------ 17 ftlbs
when installing aftermarket parts use manufacturer's torque values
 
ARC rod torque is 170 inch/lbs with a light coat of oil on the treads. Start at 100 inch/lbs alternating from bolt to bolt going up 20 or so inch/lbs until you reach 170 inch/lbs. The studded side cover is 220 inch/lbs using a criss cross torque pattern. Head bolts 220 inch/lbs, studs 240 inch/lbs. Flywheel if using a 6625/6626 ARC flywheel 65-70 FT/lbs. For a 6602P/6602PH 55-60 FT/lbs
 
You must log in or register to reply here.
Back
Top