If the slope faced inwards, the oil would flow out without any resistance. Most oil seals are made of synthetic rubber. 1. The General Motors 4.3 liter V6 engine was introduced in 1985 and is based on the Chevrolet 350 cubic-inch V8 engine. 1. Nestled at the back of the engine between the transmission and crankshaft, replacing a rear main seal is either a costly job if you’re going to pay someone else to do it, or a time-consuming job if you choose to pursue it yourself. The truck has 156k on it and never leaked a drop until a couple of months ago. Parts. Total coverage for medium and heavy duty truck, commercial marine and industrial applications results in a truly world class source for gaskets. Add to Cart. Re: rear main seal replacement. This seal incorporates features that improve high […] Then, position the tool against the seal and tap on the tool with a rubber mallet evenly until seal is seated. Replace the crankshaft rear main oil seal with the new design rear main oil seal, p/n 12592195 (Canadian p/n 31022784) using the following procedures. Rear Main Seals. Sort By. Two-piece rear main seals leaking in Ford 429ci and 460ci engines is hardly an uncommon problem these days. Check the fit on the shaft and in the housing. Voodoo Crank And Rod Kit - Chevrolet Small Block 383 Stroker (2-Piece Rear Seal) SKU 37502VK01. If it were crucial, it would be marked. Then, position the tool against the seal and tap on the tool with a rubber mallet evenly until the seal is seated. GM LS1, LS2, LS3, LS7, LSA and LS9 V8 engines utilize front and rear seals with Teflon inner sealing lips. Models: 1982-2005 Cars and Light Duty Trucks (Including Saturn) with 2.8L, 3.1L, 3.4L, 3.5L Engine. The oil seal is a reverse-lip design. There are no shortcuts or quick fixes if the seal has expired. 6. Generator Rear Bracket-to-Engine Block Bolt 18 lb ft : Generator Rear Bracket-to-Generator Bolt : 18 lb ft : Ground Strap Bolt (at Rear of Cylinder Head) 37 lb ft : Ignition Coil-to-Bracket Bolts : 106 lb in : Ignition Coil Bracket-to-Valve Rocker Arm Cover Bolts : 106 lb in : Intake Manifold Bolts (First Pass in Sequence) ARP 100-2901 - High-Performance Series Flexplate Bolts Chevy 90° V6 & 265-454 with 2-pc Rear Seal $11.49 ARP 200-2902 - Pro Series Flexplate Bolts Chevy 90° V6 & 265-454 with 2-pc Rear Seal 4.8 5.3 5.7 6.0 LS1 LS2 LS3 LS6 L99 LS4 LS9 LSA LQ4 LQ 9 L76 L92. When oil pressure presses against the inner bevel, the lip of the seal pushes out. Numerous Internet forums confirm this habitual engine bleeding and … Examine the new seal and notice the direction of the outer lip. A rear main seal will lose engine oil while causing a bad oil leak. The sloped part of the lip faces outward. Rear Main Split (2 Piece) Full Round Rear Main; Timing Cover Seal; LS Gaskets; Freeze Plug Kits; Push Rods; Misc. Ive been chasing an oil leak on my 2000 4wd 5.3 for about a month and Im afraid its the rear main. I can't think of anything I did wrong. Rated 5 out of 5 by GT40MkI from LS to t400 11.5" bolt circle converter OR 4l80e I ordered the 399753 first, as its listed to work with an LS to an early transmission and converter and includes the snout extension. thanks Bill If the seal is installed dry, the lip will overheat as soon as the shaft starts turning. Hydraulic Seal (H60) Clutch Fluid with Stop Leak (1350) Super Leak Fix (1305) Jack Oil with Stop Leak (HJ12) Power Steering. Next, make sure you have the correct seal. Using Rear Main Cover Tool # LSRC1 w/o Oil Pan Installed. Correct or incorrect. I just built a Gen 3 5.3 LS, everything went perfect except soon after running it, it started to drip oil from the rear of the engine. Front and rear views of the Kaase 1-piece rear main seal for Ford 429-460 engines. N/A Sleeve thickness: N/A Sleeve Length: N/A Starter: O.E. Main Studs: Inners – 7/16" x 3.600" Outer – 7/16" x 2.900" Studs heads: Call for application so are you guys still putting them in backwards? It is now time to install the rear main seal in the block and the rear main cap. Clean the surface where the old seal was installed. DO NOT pry the crank up and only remove the rear main cap. C1527 . Replace the crankshaft rear main oil seal with the new design rear main oil seal, p/n 12592195 (Canadian p/n 31022784) using the following procedures. It drips off the bottom of the bellhousing, drain plug, starter bolt, and the pan bolt beside the oil filter. A bad rear main seal … 6. (1) BTR LS Oil Pan Gasket BTR12350 (2) BTR LS Water Pump Gasket BTR30223 (1) BTR LS Front Cover Gasket BTR33904 (2) BTR LS Valve Cover Gasket BTR37683 (1) BTR LS Damper Seal BTR85673 (1) BTR LS Rear Cover Gasket BTR39249 (1) BTR Rear Main Seal BTR60436 (4) Chevrolet Performance Water Crossover/Block Off Gaskets 12551933 The upper half you will have to "roll" around the crank. Use a seal installer to tap the new seal in place. Install the new seal (Mr. Gasket 61070G) by slipping it on the cover facing the correct direction. There are two main types of oil seal: static and dynamic.A static oil seal fits between two non-moving parts, a dynamic oil seal between a stationary part and a moving one. Engine Bags; Adhesives & Sealants; Pipe Plugs; Heat Tabs; Stop Block; Thread Repair; Connecting Rod Bolts; Dowel Pins; Rocker Components; New Parts Rear Main Split (2 Piece) Full Round Rear Main; Timing Cover Seal; LS Gaskets; Freeze Plug Kits; Push Rods; Misc. Your Price $0.000 MSRP $0.826. If you have it installed correctly, it will keep oil inside and not allow oil to pass. The most labor-intensive seal to replace on any engine is the rear main seal. 2 piece rear main on a SBC. Front passenger side below deck surface (XXXLSN) Sleeve OD: N/A Sleeve O.S. MAHLE Aftermarket has one of the most complete gasket product lines available anywhere. A rear main seal should be a lot less. In fact, the MK IV shares the same bore spacing and main web position with its W-motor ancestor although the big-block main journal is roughly 0.250-inch larger in diameter. Before installing the seal, lubricate the lip with whatever fluid it’s going to work in. The part number is applied to the outside face of the seal, as shown. Using Rear Main Cover Tool # LSTC1 w/o Oil Pan Installed. Setting The Stage. Set Descending Direction. The lower half of the seal will be easy, it just slides onto the cap. Question for any experienced LS builders about the rear main seal. As this continues, the seal will enable more particles to pass or get stuck, and seal efficiency deteriorates, eventually leading to malfunction of the component that the seal is meant to protect. Minor changes to accommodate a one-piece rear main seal and hydraulic roller lifters occurred with the advent of the Gen V and later the Gen VI engines in the 1990s. To rectify the situation, it is necessary to repair the shaft surface since a seal replacement will not be sufficient. Wish ... Signature Series Crankshaft - Chevrolet Big Block 3.750" Stroke (2-Piece Rear Main) SKU 60437502. Theres enough clearance to do it, but you just have to be careful and use a wire or a small screw driver to push the seal … Jun 27 2012, 1:46am. Product Description. “It’s the rear main seal” is something no car guy or gal ever wants to hear from their mechanic. For example, the Small Block Chevy and the GM 3.4L V6 head gaskets can be installed with the Blue Stripe coating facing the cylinder heads or the engine block. Rear Main Seals. Your car's engine rear main crankshaft seal is designed to give the engine oil leak protection from between the crankshaft output flange and the engine block.This seal is mounted in a steal plate which is bolted to the rear … The 4.3 engine uses a one-piece rear main seal mounted in a housing at the rear of the engine block. With a completely disassembled engine, the first step in this process is to ensure that the proper main bearings are used. Rear Main Seal Stock LS style with factory cover Serial No. AdvertisementClick Here to Read MoreAdvertisement Note: This bulletin does not apply to 2004-2005 Saturn VUE models with 3.5L DOHC V6 Engine Correction A new design crankshaft rear main oil seal has been released. Install the new rear main seal (Mr. Gasket # 61071G), leaving the white plastic piece in place and slip it on the crank facing the correct direction. Wish List Compare. Super Leak Fix (1305) Power Steering Repair (1600) Add … The rear main oil seal installation tool (EN-48108) has a unique design to allow the technician to easily install the rear main seal squarely in the correct depth and direction. Unfortunately it had the 10" and 10.75" circles, and not the 11.5" I needed. Click on Ford, Small Block Chevrolet, Big Block Chevrolet, LS Chevrolet, Mopar or Pontiac to view a list of all of the products carried in that product line. Below are rotating assembly packages from Ohio Crankshaft. In these cases, it does not matter which direction the gasket is installed. This seal is constructed with a metal outer ring a rubber lip seal using a small circular spring which holds tension on the lip seal as it rides against the sealing surface of … It was used in 1988 through 1995 Chevrolet Blazers. Average Rear Main Seal Repair Cost – To Have A Mechanic Replace Rear Main Seal The average cost to repair a leaky rear main seal, is anywhere from $800 – $1,200 dollars. Add to Cart. Typically the front main seal is pressed into the front timing cover or into the seal housing on timing belt motors. The object for the rear main seal is to keep oil from passing to the outside. The rear main oil seal installation tool (EN-48108) has a unique design to allow the technician to easily install the rear main seal squarely in the correct depth and direction. LS Front and Rear Cover Alignment Tool Kit. If you do not see your exact rotating assembly package, contact Scott Ray at 800-333-7113 for a custom quote today. SacCityCorvette LS Rear Main Cover Alignment Tool & Seal Installer GM Gen III & IV Engines LS1-2-3-6-7-9-LQ4-LQ9-4.8L-5.3L-6.0L & More 4.7 out of 5 stars 103 $44.95 I didn't know if the Fluoroelastomer seals were good enough to not have to reverse them? This can be installed either way. The tittle pretty much says the question. $1,143.80. On most modern engines, the seal’s failure is due to a condition inside the engine or a component connected to the back of the engine. 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. Parts. $2,287.62. The bevel of the lip fits inward. Some people are getting quotes of up to $2,500 dollars on some vehicles, which is way to expensive for what I … Installation Procedure Important For proper orientation, note the installation direction of the oil seal. I'm running about 16 inches of vacuum. An example of a static seal is a simple 'O' ring. JEGS super easy return process had the new one on its way before I shipped the one in my hands back. Concentrated Rear Main Seal Repair (1040) Super Leak Fix (1305) One Seal Stop Leak (1334) Oil Seal Engine Oil Burning & Leak Repair (OS-1) Hydraulics.