Restoration. Still, it is easier than removing the engine and crank. Also do not file the edges of the bearing halves, even if they stick slightly above the surface. Installation Procedure Important For proper orientation, note the installation direction of the oil seal. removing the crankshaft and can be done without removing the engine from the car. Mark Abbott began his professional writing career in 2011. Prev ... of foreign matter including metal into the engine while doing the grinding no matter how hard I may try to cover the engine. Below is a picture of the crankshaft area with the rear bearing The oil seal is a reverse-lip design. How To Replace A Rear Main Seal Without Removing The Transmission – Like A Real Mechanic 1. (He didn't replace the upper half make this procedure easier. The difficult thing for me was the inexperience factor. . Pack the lower half of the seal into the main bearing cap tightly, and trim it off flush with the cap. Effort: I work in an office now, but for many years I worked as a bodyman. Parts. years many of those seals are leaking whether from wear and tear or from Then you tap those steel rods in the groove to seal the rubber against the side of the block. crane with a carburetor mount adapter. replacing 216 rear main seal. Refit new neoprene/rubber seal. Now blow the seal groove out with an air gun. It’ll probably take a large breaker bar or impact wrench to get the bolts loose. Searched for some threads but found none. I have very little (none, zero, zippo!) 1. Place the other half of the bearing in the cap and install the cap. The rear main oil seal in a 2.2 liter Chevrolet S10 can be replaced without removing the engine oil pan or the crankshaft. done. he ran the car and didn't see any leaks, so maybe he won't have to. the end of it was snagged while scraping the bottom of the block to clean depression with silicone. Generally, there is no need to remove the battery, as you are not going to remove the... 2. The picture below shows the new rubber seals that replace the wick side seals. Lisle kit number 27000 is another seal replacement kit. difficult repair jobs he has attempted. tool used in the removal and installation of wick type seals. Cut the seal off flush with the block with a razor blade or a box cutter, being careful not to scar the seal surface of the crank. This can be done with out touching the rod journals. Replacing the seal can be an in-depth job, no matter what kind of vehicle you have. Is It Worth Fixing? Tap the cap lightly with a plastic hammer on one side, then the other if it sticks. This allows for a complete inspection of the crankshaft journals around which the bearings sit, as well as the opportunity to check the alignment of the crankshaft and the engine block. Reinstall the rear main cap, retorque the main bearings, and install the oil pan. It costs $5.50 and is called a "Sneaky Pete". The kit uses a pushrod to drive a pointed steel spacer pin between the upper rear main seal and the block. Again, this is a good alternative to removing the engine for a limited-use vehicle. your face, it makes for a very unpleasant afternoon. How-to » Engine » Mechanical, Lubrication & Cooling » How to Replace a Rear Main Seal Note: This is a general guide for all vehicles. If the bearing is doweled in place, the crankshaft will have to be removed. It had become unraveled If there is resistance, examine the surface into which it fits and note that at times it does not get started squarely. drying out. engines also can be repaired in a similar manner. Late Model Corvette. off remnants of the old oil pan gasket in a previous procedure to replace If the head has been removed for any reason, there is no need to remove the spark plugs. Install the other seal half in the bearing cap. Then remove the spark plugs to relieve engine compression. Print; Tweet. Replace Rear Main Seal. I used ramps for the front tires and jackstand under the rear axle. The main rear seal is the engine oil protection located between the engine block and the crankshaft outlet extension. them with the bearing cap finger tight on the car. Your car's engine rear main crankshaft seal is designed to give the engine oil leak protection from between the crankshaft output flange and theengine block. Always wear safety glasses when performing automotive repairs. The average cost to repair a leaky rear main seal, is anywhere from $800 – $1,200 dollars. power steering cylinder, and other linkages. •Remove and discard the crankshaft rear oil seal (141). First chock the wheels of the Part Number: WMR-W84019 There are no shortcuts or quick fixes if the seal has expired. Remove Driveshaft & Flexplate If you own a late model MGB, it’s likely that you can pull the gearbox, replace the clutch, check the rear main bearing for oil leakage, and/or replace the rear main seal with much less effort than you might be led to believe. After forty plus 1/16 of an inch (if that much). Just small very precise taps are allowed to drive those pins in. Casey Tarp, who did this repair, says this was one of the more When you tap in those steel pins, it pushes the rubber in about Refill the engine with oil, then start the vehicle and check for leaks and unusual noises. Especially hard was driving those steel pins in. Next unbolt the two side engine mounts. If it is forced, it could become distorted. He earned his Associate of Occupational Studies degree in automotive technology in 1997 from Western Technical College in El Paso. The following procedure was done using the Lisle kit. ... Rear Main Seal Removal and Installation Tool, T-handle, Wire with Clip, Two Extra Clips, Kit. when side of the cap. They are usually replaced along with other internal parts while the engine is out and completely disassembled. the rear main bearing. Casey does not want to do this repair again! If the journal is worn beyond specifications, the crankshaft will have to be removed to recondition it, which would then require new undersized main bearings. It takes a lot of patience and careful work to get the job Abbott also holds a certificate of completion as a professional truck driver from Mesilla Valley Training Institute in Canutillo, Texas. Guide; Edit; Advertisement. Below is a picture of the rear main bering cap reinstalled Valve covers and intake were always dry. Removal Procedure for Crankshaft Oil Seal •Remove the automatic transmission flexplate, refer to Automatic Transmission Flex Plate Replacement . Do not use the oil pan to rise the engine. Average Rear Main Seal Repair Cost – To Have A Mechanic Replace Rear Main Seal. This procedure tightens the old seal and may stop the oil leak. it is the rope type seal. points to keep the engine raised as shown below. A more comprehensive kit is available as 31700. Airy Cat: If you choose to change the rear main seal make sure you loosen the adjoining main bearings first and then shim the distance between the bearing and the cap on those forward bearings so as to properly support the crank shaft as you go to work on the last rear main cap removal and seal replacement. Thunderbirds were originally made of a rope-like material. Raise the engine using a jack. However, it is possible on some engines, to replace them with the engine still in the vehicle. Remember to never work under a vehicle supported only by a jack. on ramps. Many other A third jackstand is needed for safety once you raise the engine and remove the oil pan. However, removal of significant components external to the engine, most notably the transmission, is required. Use bocks of wood at the engine mont with new seals. Replacing the rear main seal can be an insurmountable job for a weekend mechanic, and can even be a challenge for a seasoned professional. Jump to Latest Follow 21 - 28 of 28 Posts. The oil pan came out without this. ok, my 216 rear main seal leaks like crazy. Be very careful not to damage the cap and mark it in some way to identify which journal it came off of. It costs $5.50 and is called a "Sneaky Pete". is barely enough room for a hammer head because of the crank shaft components, this article describes a method for replacing the seal without There is a little dab of clear silicone covering the ends of both side seals. If your car's a little older it becomes a very real question of whether or not to fix a … There Powersports. To ensure exact trimming, each kit includes installation instructions, a special knife, and a few other trimming aids. Discussion in '1947-1954' started by mot1982, Jan 3, 2009. mot1982 Member. the rear main seal in my 69 gto is leaking.. can i replace this without pulling the motor and if so whats the best way to do so.. please include a detailed description ... then loosen the main, removing #5 then pull out the old and insert the new seal. Fixing the leaking seal entails dropping the exhaust, oil pan, main bearing support bar, and rear main bearing, and then replacing the two-piece seal. GraphTite™ rope seals are miles ahead of any other rope seal out there. Install the Rear Main Seal Apply a little bit of engine oil over the crankshaft hub before replacing the seal. Prolonged heat and vibration in your favorite Chevy 350 could cause the rear main seal to fail. 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