Once you have the oil pump and drive in proper alignment, use the bolt that enters into the pump from the top to help hold it in place while the other bolts are installed. The rear bolt hole locations of the oil pan provide mounting points for the transmission bellhousing. I cranked the bolts down pretty good. The situation you are in is why the pan itself has this warning casted into it. Step 8: Install Oil Pump Bolts. In GM's 4.3 L V8, the 1/4-inch bolts joining the oil pan with the engine block require 7.5 foot-pounds of torque. If I were you, I would loosen the pan bolts and align it t be flush with the back of the block so the bellhousing is flush against the pan and the block for a easy bolt together. 30. I want to install an aluminum oil pan on my mercruiser 4.3 vortec (1997 model). This has been a little frustrating to research. Valve Cover Load Spreaders® Load Spreaders distribute the clamping force more evenly on the valve cover flange. The oil pump attaches with 65 foot-pounds of torque. PermaDryPlus® oil pan gasket sets. The alignment of the structural oil pan is critical. Remove the oil pan gasket€(1) from the oil pan€(2). 32. oil pan alignment is critical on LS engines. The oil pump on a Y-block is held in place by three bolts. So my upper oil pan gasket was leaking I go to change it and during installation I noticed my torque wrench was broken. Discard the gasket and rivets. . Install the new oil pan gasket into the groove in the oil pan. Simply lay it onto the gaskets and use a total of 18 bolts to fasten it to the block and timing cover. 31. Oil Pan Alignment. Step 9: Torque Oil Pump Bolts (Torque Fasteners) This is a discussion on Oil Pan Alignment within the External Engine forums, part of the LSx Technical Help Section category; Everything I read claims that oil pan alignment is critical. Also, see the appropriate operator’s manuals for track maintenance, alignment procedures, and specific bolt torque by model. Lubricate bolts with 10W-30 engine oil and use a torque wrench. Clean the base of the engine block. NOTE: Wheel bolt torque is critical. Then torque the oil … The oil pan gasket and oil pan must be installed and the fasteners tightened while the adhesive is still wet to the touch. A 7/16-inch socket and 3/8-inch-drive torque wrench is used to tighten most of the bolts to 12 ft-lbs. Too tight is as bad as too loose. See all 21 photos Slip the oil pump over the crank snout and with lightly tightened bolts, turn the crank roughly four or five revolutions. . The 5/16-inch bolts require 13.5 foot-pounds of torque to join properly with the engine block. Cylinder Head Dowel Pins Cylinder head alignment dowel pins assure proper gasket and casting alignment for an accurate seal and This results in a better seal between the valve cover and the head. Step 22: Install Oil Pan (Torque Fasteners) The oil pan is another component that the machinist should have thoroughly cleaned for you. The drain plug requires 20 foot-pounds of torque to join properly with the oil pan. Will it be alright or should I get a new torque wrench and check them? Refer to Oil Pan Cleaning and Inspection. Note: The oil pan alignment must always be flush or forward no more than 0.011 inch (0.3mm) from the rear face of the engine block. Refer to Replacing Engine Gaskets. Do not tighten the bolts at this time. Clean and inspect the oil pan as necessary. alignment in order to maximize overall track life. From what I can tell, the mercruiser-specified aluminum oil pan is identical to the oil pan that is made for many trucks and SUV's, and appears to have the exact same bolt pattern on the end that faces the flywheel cover (bell housing). Notice
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