GM 12337249 Cover Kit, Engine Front W/ Gaskets (Asbestos)

To be able to remove or install Buick engines, just follow these, Drain cooling system and pull out the radiator, fan, pulley and belt. Remove fuel pump and the alternator if necessary. Distributor should be removed but not before noting its position so that it won't disturb anything. To achieve this, you need to remove the thermostat by-pass hose, harmonic balancer, timing chain-to-crankcase bolts and also oil pan-to-Timing Cover bolts in order to take off the Timing Cover. After driving out the old seal and shedder, coil new packing around opening, drive in shedder, and properly size packing. To make sure of this camshaft sprocket bolt shall be removed without changing its position while sprockets' timing marks coincide with each other and front crankshaft oil slinger is detached from it for good. On a 350 engine there is a crankshaft distributor drive gear and fuel pump eccentric while on a V6 there are camshaft sprocket bolts that must be removed. The camshaft may then be carefully pried along with crankshaft sprockets forward thereby removing all of them together with their chains. Then you need to check that No. 1 piston is at top dead center before assembling the timing chain on both sprockets and sliding them onto shafts with 0-marks aligned; thereupon put slinger into place on crankshaft; slide fuel pump eccentric on camshaft followed by putting woodruff key in place; put back distributor drive gear as well as eccentric bolt over there. Tighten bolts using specified torque values then install new seal gasket plus cover for timing case after which secure it using appropriate bolts. Before reinstalling oil pan plus other components clean all gasket mating surfaces as well as apply silicone sealer to oil pan-to-cylinder block joint. In Pontiac Engines (265 & 301), drain the cooling system, disconnect hoses, vacuum lines, and spark plug wires, and remove the radiator. To enable this happen is simply disconnecting the accelerator linkage and temperature gauge wire as well as fuel lines. Hood latch brace, PCV valve hose, rocker covers, distributor, intake manifold are to be completely removed together with valve cover. Just loosen rocker arm nuts and then remove pushrods plus lifters. After that take out the timing cover and gasket followed by fuel pump eccentric and bushing in order to get at harmonic balancer; fuel pump; oil pan-to-timing cover bolts; the harmonic balancer; oil pan-to-timing cover bolts; timing cover as well as gasket; timing chain along with sprockets replacing it later with new ones. First of all position the engine with No. 6 piston at top dead center even before rotating crankshaft to align camshaft gear mark at 12 o'clock after which slide these camshaft plus crankshaft sprockets onto their respective shafts having their 0-marks aligned. This should be done prior to putting slinger on crankshaft or installing fuel extractor eccentric or using camshaft sprocket bolts such as camshaft thrust plate. Lubricate parts during reassembly according to procedures employed earlier in disassembling them. In Chevrolet Engines (305 & 350), drain radiator and take off belts including fan, pulley, crankshaft pulley and balancer among others. Clean all gasket mounting surfaces first of all. In reinstalling process apply silicone sealer for oil pan-to-cylinder block joint; use a centering tool when handling front cover then tighten it down by securing its bolts; hang harmonic balancer on place like it was before then put back pulley too just like it is supposed to be followed by water pump that needs some new belts which must also be fixed on place along with other parts such as radiator and the like. For Oldsmobile Engines (307, 350 & 403), drain the coolant, disconnect hoses, remove fan, belts, pulley, crankshaft pulley and balancer on some models. Remove front cover bolts then take it off along with timing indicator and water pump. Later models have dowel pins that are ground while their ends are chamfered. Just trim gaskets before cleaning mating surfaces to apply sealer in addition to placing new seals as well as gaskets where they belong. After installing the cover again use another bolt to secure it; this is followed by tightening while holding down pan seal afterwhich press down on the cover and rotate it for a while; finally tighten bolts again. Lubricate balancer seal surface followed by reversing sequence of removal in which balancer is installed together with other parts.

Drain the radiator, then disconnect the upper and lower radiator hoses along with the heater return hose at the water pump. Remove the fan, fan pulleys, and belts, followed by disconnecting the fuel lines, plugging them, and removing the fuel pump. Take out the alternator and brackets, and remove the distributor, ensuring to mark the position of the distributor rotor if the timing chain and sprockets remain undisturbed. Loosen the front clamp on the thermostat by-pass hose and slide it rearward. Remove the harmonic balancer bolt and washer, then take off the harmonic balancer. Detach the bolts that secure the timing cover to the cylinder block, followed by removing the two bolts that connect the oil pan to the timing cover, and then take off the timing cover. Clean the timing cover thoroughly, ensuring all old gasket material is removed and the surface is undamaged. Before re-installing, take off the oil pump cover and pack petroleum jelly around the oil pump gears to eliminate any air space, preventing the pump from losing its prime. Re-install the pump cover with a new gasket and torque the bolts to specifications. Ensure the gasket surfaces of the block and timing cover are smooth and clean, then install a new gasket on the cover. Lubricate the harmonic balancer shaft where it will pass through the timing cover seal to prevent damage upon engine start. Use the dowel pins on the block to engage the dowel holes in the cover and position it against the block. Apply sealer to the bolt threads and tighten the bolts to specifications. Finally, install the harmonic balancer, bolt, and washer, using a screwdriver or similar tool to lock the flex plate or flywheel starter teeth, and torque-tighten the harmonic balancer bolt to specifications.

Upon installation, ensure that the block and crankcase front cover are clean.

Disconnect the fuel lines, plug them, and remove the fuel pump.

Apply a bead of silicone sealer on the bottom of the cover, install it, and tighten the screws alternately and evenly while aligning the dowel pins.

Tighten all bolts to the proper torque specifications and reinstall all components in reverse order, applying lubricant to the front hub seal before installing the crankshaft hub.

Detach the bolts that secure the timing chain cover to the cylinder block and the two bolts connecting the oil pan to the timing chain cover.