Raise the car with the help of a jack so that it becomes easy to reach the rear main seal. Speedway Small Block Chevy Offset Rear Main Seal made by Speedway Motors, for as low as $12.99. Once you take the bearing cap off, one half the seal will be in the cap and the other half is in the block, just push on one side off the seal with a small wooden dowel and it should slide out, then oil up the new one and gently slide it in, before you put the main cap back on, silicone the areas on both sides where the two seal halves meet, then put the cap back on, I think it's 65-70# torque. Failure to install the Fel-Pro seal properly may result in oil leakage. Felpro Rear Main Seal kit -- a double offset lip seal Part no. Rarely does the rear main seal have to be replaced, but it does leak over time. Fits all big block Chevy 454-496-502-540-572 engines 1990 and newer with one piece rear main oil seal. A rear main seal leak is among the worst things that can happen to any vehicle because the rear main seal is very hard to reach and it requires much of your engine to be disassembled. Applications: C/K, G, P TRUCK 7.4L 454 cubic inch J38841 is a rear main seal installer for the 7.4L engine. Guaranteed lowest price! This resulted in a "no start" condition. If you have drips coming from in front of the bellhousing, locate those leaks, stop them and clean the engine. How To Replace A Rear Main Seal Without Removing The Transmission â Like A Real Mechanic. One tool that some people have had success with is an oil additive called Blue Devil Rear Main Sealer. Hate that leaky old Engine Rear Main ... BBC Rear Main Seal - Gen V and VI - $8 (Muskegon) New-In-Box BBC rear main crankshaft oil seal National #325776. A reverse lay-down type seal is installed in the opposite direction of a conventional type seal. Buy Fel-Pro 2909 at JEGS: Fel-Pro Rear Main Seal Small Block Chevy large outside diameter. Alignment tool included for easy installation. Cam bearing OD should be de-burred before installation. It appears to be a quality seal. The rear main seal for a car can cost less than $50, so you might be wondering why it costs hundreds to replace the rear main seal. If you want I have a brand new Detroit gasket Viton rear main seal. For 2013 onwards please use DM11-B1726 or check via Seal Numbers. Nestled at the back of the engine between the transmission and crankshaft, replacing a rear main seal is either a costly job if youâre going to pay someone else to do it, or a time-consuming job if you choose to pursue it yourself. The ball check valve has been eliminated by using the new seal.â Adler to VCCA, 1-29-98: âThe rear main bearing cap is now mounted to the cylinder block with four bolts instead of two. Enables a rebuilder to install a 2-piece design crankshaft in a one-piece seal design block. Seal types There are three types of rear main crankshaft seals in use today; each offers its own features and benefits, along with concerns. Rear Main Seal Installer J-38841. Inside Diameter: 2.78 Kit is used when installing an early-style crankshaft (for a 2-piece rear main seal) in an '86 or newer block while using an '85 or older style pan. Highest quality. After a few hundred miles you can check again for leaks to see if you still have any. Billet aluminum. 1986 + UP S.B. also have seen folks use some type 3 aircraft gasket sealant on the block side of the rear seal as well. Fel-Pro Rear Main Seal 1975-85 Buick V6 and Stage I/II first design engines. and it seals!! The seal types are: Rope or wick, neoprene or split, one-piece. ... Mr Gasket 1971 Rear Main Seal, SBC, High Vacuum $36.09 Fel-Pro 2912 Small Block Chevy 2-Piece Rear Main Seal $34.99 Chevy 350/400 Rear Main Seal ... Engine Building Tool Guide Its purpose is to keep the oil from leaking through the back of the engine. Before you start the process of how to replace a rear main seal without removing the transmission, it is preferable to prepare everything vital. Save $10 off $299, $20 off $699, $30 off $899, $100 off $1,899 Orders The first time I did not do it correctly using the T10134 tool, and the timing ring was several degrees out. AlignIt Timing Cover & Rear Main Cover Seal Alignment Tools For GM Gen III & IV Engines LS1-2-3-6-7-9-LQ4-LQ9-4.8L-5.3L-6.0L & more Here is a couple simple but very effective tools to help you make easy work of aligning your Timing and Rear Main Covers. When I asked the "motor heads" there was no unamomous agreement as to a particular type. I guess I have to jack up the motor, drop the pan, remove the oil pump, pop the bearing cap, change the seal ⦠I really can't tell if it's coming from the pan or the rear main seal. $11.49 Ships directly from the manufacturer on 02/23/21 Lowest Price Guarantee. A rear main seal leak will cause oil to drip from the bottom of the bellhousing at the front of the transmission. After pushing the seal into the block as far as it will go, hold the block against it and tap the block with a hammer. The big block Chevy engine uses a two-piece rear main seal through 1985. Free shipping . Fel-Pro 2903 Fel-Pro Rear Main Seal 1975-85 Buick V6 and Stage I/II first design engines. $1.99. Buried in your vehicleâs engine compartment is the rear main seal, which is designed to prevent oil leaks between the block and crankshaft. 6100 â GraphTite⢠Rope Rear Main Seal. GraphTite⢠rope seals are miles ahead of any other rope seal out there. Used to install the crankshaft rear oil seal and wear sleeve. $119.69. $59.99 + shipping . The M96 Porsche engine found in the Boxster / Cayman has an Rear Main Seal "RMS" to seal the back end of the crankshaft (the end the connects to the transmission). Billet aluminum adapter allows installation of a two piece style crankshaft seal and early (pre-1986) crankshaft into a 1986 and newer SB Chevy (pre-LS) engine. Adapters include mounting hardware. Around 1987, Chevrolet moved from a traditional two-piece rear main seal to a one-piece unit that fit over the rear crankshaft hub to improve oil control. The engine is in the car, the tranny is out, flex plate off, pan off and rear main seal out. I've had an oil leak coming from the back of my engine. As a hard-to-reach component, manufacturers originally intended rear seals to last the life of a vehicle with no need for change-outs, unlike various pieces under the hood that drivers are expected to replace every couple of years. rear main seal caps tend to seep oil between the the cap and the block so make sure you get a thin film of rtv or your favorite gasket seal in there. Here's the question. This means that half of the seal is on the rear main bearing cap and the other half is on the engine. This is a write-up on my recent experience changing out the rear main seal on my wife's 2006 Jetta TDI. CV 2PC S/H EARLY TAKES 2 LONG & 2 SHORT BOLTS - ⦠If you're out of options, this is a fairly low cost method that has worked for some people with a leaking rear main seal. Porsche Rear Main Seal Installation Tool. 4 product ratings - SBC GM CHEVY 305 350 383 FEL-PRO 1PC REAR MAIN SEAL 1986-1997 # BS 40626 JEGS 502500 Rear Main Seal Adapter Fits 1986-02 Small Block Chevy Engine Block. BS11829-1 (fits 1959-1985) And a Oil pan gasket kit --- your choice -- one piece or a 4 piece cork whatever -- your preference. $132.99 ... Allstar ALL26127 Alignment Tool For Rear Main Seal Adapter . The rear main seal, also referred to as the rear crankshaft seal, is located inside the rear of the engine where the crankshaft exits the block. To ensure exact trimming, each kit includes installation instructions, a special knife, and a few other trimming aids. Fourteen 3/8 bolts around the ⦠***PITFALLS*** - This job was done twice and the seal is an expensive part - $85 to $105. Fel-Pro 2900 Small Block Chevy Performance Rear Main Bearing Seal SBC. Our rope actually fits! NOTE: Will NOT fit 4BE. I paid $20 plus shipping for it. Unlike the pan gasket the rear main is made in mexico. When I took the rear main cap off, the seal stayed with the crank. On some late model vehicles, the original seal may be a reverse lay-down seal. For the "one piece" rear main seal on later-model small block Chevy engines, it's designed to be changed with the crank in place. The crankcase and rear bearing caps are machined to receive the new wick type seal. This marvelous material is easy to trim. Standard SBC head studs or bolts may be used. The manual I have advises to remove the transmission and lower the crankshaft 1/2" to slide a new upper seal in place but does not mention using any specific tool. Allstar Alignment Tool for Rear Main Seal Adapter ALL26127. If you want it I you can have it for $20 shipped or just order one from straub along with the pan gasket. Fel-Pro 2903 Part Number: 375-2903. REAR MAIN BEARING SEAL CAUTION: This seal may look different than the OEM seal being removed. Models: Izuzu: 3.5 Tonne / Mu / NKR69 / NKR77 / ⦠It takes a special tool to install the seal, after you get the flywheel/flex plate removed AND the transmission out of the way (NO small feat on a TorqueTube Buick). Step 1 Rear Main Seal Remove the 18 bolts holding the oil pan in place using the 3â8 and 1â2 sockets, 6 inch extension and 3â8 ratchet. This tool is specially designed to prevent oil seal damage during installation. The rear main seal which is a wick or rope seal does weep a bit and I am thinking now would be a good time to change it. Just add one 8 oz. When initially removing main caps, the caps & block should be de-burred before reinstalling; this will insure that correct main size is maintained. The seal will leak without using the correct tool! . Here is the gasket and seal i am talking about. NTX5467 Rear main seal on 350 SBC needs to be changed with engine in the truck. I could turn it 360 degrees quite easily. . bottle for every 8 quarts of engine oil and it should at least slow down the leak and may even stop it. Work your way around the seal to seat it against the engine block. NEW EngineQuest SBC Rear Main Alignment Tool AT350 to help complete the installation included in this sale. Standard 1980-1985 SBC oil pan can be used, 1986 and up can be used for 1 pc rear seal. The problem that many people have is how to properly install the new seal, so that it wonât leak again. Ford makes a tool to seat the rear main seal into the block, but you can use a small 2- by 4-inch block to do the same. This tool has an unique spin handle design to allow the technician to easily install the rear main seal to the correct depth every time. Uses a 1986 and later 1-pc rear main style oil pan and gasket. Applications: DT 466, 530, DT 466 /570, HT 570(DT.9 and 10) OTC ZTSE4637 Real Oil Seal / Wear Sleeve Installer âItâs the rear main sealâ is something no car guy or gal ever wants to hear from their mechanic.