Tip & How-To about Dodge D150
When removing a two piece rear main seal without a sneaky pete, it can be very overwhelming here's how... First unbolt the transmission and slide it back just so that the input shaft is not in the way of taking of a clutch and/ or fly wheel. Then drain all engine oil and remove filter. Next remove the oil pan ( but be careful that none of the old pan gasket gets in the bearing caps, or crankshaft). Then next remove the oil pump( watch the gasket on this also so it doesn't fall down inside the pump pickup tube). Then your going to want to loosen the main baring cap bolts starting from the back of the block then going to the front( not to much just enough to get the pressure of the upper main seal and the crankshaft, but you will need to take the cap bolts on the very back one at the back of the block all the way out thus the bottom rear seal is in it). Remove the bottom rear seal by pulling it out (sometimes using a flat head screwdriver), and then put the new one in by dipping it in fresh oil and simply pushing it in the groove big tab side forward. Next take a screw and a small drill or screwdriver and lightly screw it into one side of the rubber on the seal in sort of a upwards diagnal pattern ( be very careful not to scar the crankshaft). Then grab the screw with the pair of pliers and lightly tap on them with a (small) hammer or the end of a screwdriver. next take the new seal dip it in fresh oil and slide it back in, in a clockwise pattern. Next put the bolts back in the baring cap with the new seal in it , and just snug them down. Then starting with the (R) front bearing cap bolt start tightening them back down to the engines given torque specs in a zig zag pattern tighten every other one all the way back to the back of the block, then back to the front. Put your new seal on the oil pump then bolt this back up to the torque specs listed for that vehicle. Next put on the rear pan gasket (if it's a four piece gasket) then put the front pan gasket on the pan. Next by using small amounts of high temp silicone put a dab on every corner it touches another gasket piece and bolt it back up ( torque specs vary depending on vehicle usually between 12 and 18 foot lbs.) Then bolt the fly wheel and/ or clutch back up. Slide your transmission in the aligned whole and bolt it back up. put on the oil filter and fill it with oil. Start the vehicle and check for leeks, if there's leeks tighten the pan generously and check again. Thank You and I hope this has helped.
Posted by Shea Jones on
Oct 05, 2011 | Cars & Trucks
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