Mitsubishi 4G63,4G64 engine, Cylinder Head Bolt torque. The tightening torques stated are only valid for screws and nuts with oiled threads which are tightened by hand with a torque wrench. That completes the torqueing. They are extremely low torque bolts, so pay attention to that fact. Stage 3 – 90 degrees. Simply re Doing it twice will ensure they are properly torqued. I'd also seriously advise anyone doing a self build to use a very good quality torque wrench, and get it calibrated regularly. Guard bolts = 7 lb with loc-tite (blue is removable) Power steering pump pulley = 18 lb Balancer = 22 lb. Mitsubishi 4G63,4G64 engine, Main Bearing Bolt torque. The torque angle method can be accurate – but only if each individual application has been previously calibrated by direct measurement of bolt stretch. lb. Oh, and here's a link to the torque info part of the ARP website. It's no use adjusting the torque wrench to 80lbs/ft, when it's actually applying a 60lbs/ft torque at that setting I personally use a Torqueleader QTC. The torque specs for these bolts is so low, it is definitely recommended that you back off a half to one full turn first, then torque to spec. 6 bolt head torque sequence. Start at 35 then 55 then 72. As stated earlier, start at ten and go down for all three sequences. Figure 2. • Incorrect torquing sequence or torque values may damage head bolts or cause cylinder base/head gasket failure. Looking at the Service manual, it has you torque the stock head gaskets to 15 ft lbs and then mark them and tighten them another 90 degrees. Stage 1 – 40nm. Search Car Torque Specifications by Engine or Model Torque wrenches are more accurate in their middle range than at the bottom or top of their ranges . Second time should set them in good. With a 250 in. First time the bolts may stretch some, reason for doing it twice. TECH TIP: It's important not to over-tighten the valve cover bolts. Loosen all bolts and repeat process again for the final time. Recommended torque is equal 75% of the fastener’s yield strength. • Exceeding recommended torque values may pull cylinder studs out of crankcases. is at the bottom range of the foot pound torque wrench . Listed here are the general torque recommendations for most ARP fasteners. Fluidampr/factory balancer = 7 lb + 1/4 turn Crank gear = 67 lb + 1/4 turn Alt bracket = 38 lb Water pump pulley = 17 lb . Of course it is far different from the Evolution sequence in respect to torque steps, as the Evo sequence is more concerned with cylinder distortion. Torque the valve cover bolts to 31 in-lbs. head bolts according to sequence in. Mitsubishi Lancer Torque Specs. is near the middle of it's range whereas 14 ft. lb. 7.omplete top end assembly according to normal procedure. lb. Well, the instructions Cometic and NRHS provides for the Cometic "multi-layer" gaskets is to torque them in many increments, ending in 42 ft lbs torque. This is information that you can never find when you need it so here is a table for the ARP Head Studs, Main Studs, and Rod Bolts Torque Specifcations and Stretch Specs. 1.8T cylinder head torque sequence. Over 6,000 Automotive Torque Specs. Stage 2 – 60nm. Step 1 = 18 lb.ft, 25 Nm Step 2 = + 90 degrees . Furthermore, there is a significant difference in stretch between the long and short cylinder head bolts or studs on the same head. If MOS₂ lubricants are used, the values stated lose their validity. A little lube on the threads as well as under the head of the bolt will help keep your torque readings accurate. edit: ok, torque as follows: 1. torque all bolts to 58 lb/ft 2. completely loosen all bolts but do not remove 3. torque all bolts to 15 lb/ft 4. tighten all bolts 90 degrees clockwise 5. tighten all bolts 90 degrees clockwise again pattern is like this: Intake side 8 6 1 3 9 10 4 2 5 7 Exhaust side hope that makes sense torque wrench 168 in. Stage 4 – 90 degrees

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