Pulling the motor out because you felt brave & decided to risk it, reached for that rattle gun & screamed out a semi inspirational John McClane Die Hard quote while using the old bolt attempting to send it home only to find that you now have a broken bolt in the crankshaft. We used a Mr. Gasket front cover gasket set (PN61015G), which includes the gaskets for front seal, front cover, and water pump gaskets. Osterhaus said, The numbers with our stock replacement MC1383 cam, which we used as a baseline for our tests, were 361 horsepower, and 389.9 lb-ft of torque. According to the internet, You go to a scrapyard, buy an engine, throw it in your car, and run it forever. While there are many stories like this, its in your best interest to check it out before installing it in your project. Its relatively inexpensive, depending on your machine shop. These tools are very strongly suggested, and though you theoretically could put an engine together without them, it would be a very bad idea! We had KPE remove them for us before cleaning the pistons. First, we pulled the intake and then removed the harmonic damper using a tool we purchased from ICT Billet. Open- and box-end wrenches / pliers: Open-end and box-end wrenches should also be metric, though standard sizes can be useful too. Another handy tool to have is the LSX Camshaft Installation Handle.When installing a camshaft into the motor it is critical to ensure you align the cam journals perfectly with the bearings to prevent damaging a cam bearing which would result in the motor coming out! You now have all the leverage you need thanks to the 6" inch billet camshaft installation handle. The only reason were not calling it mandatory is that you theoretically could use a micrometer, a caliper, and a dial bore tool for the same jobbut youd need very accurate versions of these tools to do it properly. If your connecting rod manufacturer doesnt specify this method, you wont need one of these.
This one is made by famed LS engine specialists Wheel to Wheel Powertrain. We used a set of Mahle standard bore rings in conjunction with the factory pistons. While our new engine looked much worse on the outside than the previous one, we were hopeful that the internals would look better than our first option. Advertising -
While the two black pieces are what actually squeeze the rear seal into place, the aluminum donut also helps prevent the lips of some seals from being damaged as the cover is slid onto the back of the crank. You may need a third wrench that is good to high foot-pound readings (75 ft-lbs or more), especially for a high-performance rebuild using aftermarket fasteners. These bolts have different TTY specifications as the first design is rotated to 60-degrees, while the other design is rotated to 85-degrees. The cookie settings on this website are set to 'allow all cookies' to give you the very best experience. Steel rod vises with super-smooth clamping surfaces are also available, but can be very pricey. Some of our most popular packages DIY packages can easily be upgraded using these tools which will save you significant amounts of time & money in labour. Mellings cam will not only add more power but due to its design, it can also run on the stock tune safely. The manual set is also a good resource for information on necessary undertakings like engine removal and installation, vehicle-specific procedures that are beyond the scope of this book. Our performance timing set features superior materials, like billet steel instead of cast iron or powdered metal. Perhaps youve come to the conclusion that a full overhaul is in the cards for your engine. After clocking the piston rings correctly, we then lubricated them with oil and inserted the piston and rod assembly in the cylinder using the Brian Tooley Racing ring compressor. Make sure the rounded end goes in first. Sooner or later, every engine will need to be rebuilt. Lifter Preload. In our case, it was. With the factory crank sprocket off, we replaced it with the melling unit before installing the timing set. (one member tried to buy an LS9 cam off Amazon and found out it was a LQ9). Make sure to note the orientation of the main caps on the LS upon reassembly. Our LSX Camshaft Installation Tool Kit (pictured above)is a serious must have when it comes to doing a cam swap.This kit allows you to change the valve springs with an adjustable spring compressor tool without needing to remove the cylinder heads.
So, now your camshaft is dialled in, valve springs have been changed and you're on the home straight.A simple check that should always be done no matter how small or large the changes are is to check correct pushrod length. Crankshaft rear oil seal installation tool: It is possible to gently tap the rear crank seal into the rear cover, but you can guarantee precise installation and a leak-free seal if you have the right tool.
You might be wondering why we choose to use OEM bolts for the bottom end of this engine. All other components and the tune stayed the same.. Before we removed the cam, we pulled the oil pump and factory timing set from the engine. A system for mounting a dial indicator and measuring piston and lifter movement is a required complement to a degree wheel kit, and some kits include it. The lower half thrust bearing will fit right into the cap of 2014 and newer LS and LT engines, providing full thrust loading capabilities. Cant find your vehicle? While primarily used during high-performance rebuilds, this item can be useful in stock rebuilds, too. This bolts onto the camshaft using the x3 cam bolts to ensure perfect alignment and leverage when installing the cam. The best type of tool locks in place when the spring is compressed, as this one from Goodson does. You should use a little bit of RTV silicone to seal the front cover off to ensure no leaks. This device makes it easy to remove the cam, giving you enough leverage to finagle it out without disturbing the cam bearings.
We decided it was a good time to replace them and called, While we were waiting on the bearings to show up, we made the drive to. 
Please click Accept Cookies to continue to use the site. This time we reached out to Cale Risinger, Technical Services Manager at Melling. To secure the damper, we used an ARP damper bolt, but first, we applied the ARP Ultra Torque Fastener Assembly Lubricant. Too much or too little preload can cause failure of the lifter or valvetrain.2. Pushrod length checker: Mandatory for most high-performance applications but also helpful for many stock rebuilds. Valvetrain checker springs: These items are needed for high-performance rebuilds only, and will be used during pre-assembly for proper verification of piston-to-valve clearance. Micrometers: A set of micrometers is relatively inexpensive, though price rises with dimensional accuracy. (Please note that some GM service manuals may only be available in electronic form.). Youve also picked out the tools you are going to need. Melling recommends not only this method but priming the engine with its engine pre-lube kit (PN MPL-201), as well. All rights reserved. While Plastigauge is not the best method for checking clearances, its close enough for what were doing. If you dont feel like spending the money on one of these, it is possible to do the job using an old crank bolt (noting that this will make it extremely difficult to turn the crank counterclockwise). That Valve Spring upgrade now takes 20mins.
Any modifications that will increase the engines demand for oil will require a high volume pump.
Within 1 degree of intended install position is normal But if you end up 2 or more degrees off, you'll make a large impact on engine performance. Connecting rod vise: A standard vise is a bad way to hold rods secure while their bolts are being loosened. The Harmonic Balancer Installation Tool is designed specifically for the job. You can see in the picture that the number five cap is positioned in a different direction than the others. A simple way to eliminate these headaches is a simple tool which is the LSX Pushrod Length Checker Tool. While we were waiting on the bearings to show up, we made the drive to KPE Racing to have new cam bearings installed in our block. Dial caliper: Calipers are convenient for taking measurements of a variety of parts, whether you need to know an items diameter, length, or depth. Our plugs werent that hard to remove, surprisingly. Born when assembled, engines wear themselves in during their early months, and perform strongest during their middle years. It primarily will help you in verifying the quality of machine work after its been performed. Give us a call at 316-300-0833 or fill out our online contact form. The second design, which we had, had two dimples on the head and a retaining sleeve.
For most do-it-yourselfers, this means a sufficiently large garage thats relatively clean and is isolated from intruders who might interfere with your work while youre away (or overly distract you while youre in the middle of it). Since you really only need a set good enough for double-checking diameters of machined items like journals and piston pins, you should grab a set accurate to a half thousandth of an inch (0.0005). in the chapter in which they become important. Valvespring height gauge: In order to ensure your valvesprings will be at the correct installed height (and thereby provide the right amount of seat pressure), youll need a valvespring height gauge. Torque angle gauge: Some of GMs fastener tightening specifications used on the LS involve the torque-plus-angle method (for example, 15 ft-lbs plus 51 degreesthats not something you want to eye up!). Some, like this one made by COMP, even have a provision for installing a degree wheel onto the front. The first design has one dimple on the head and no retaining sleeve.
If you have a good relationship with your machine shop, its well worth having them clean all of your parts for you.
*** LATEST ARRIVAL OF TEXAS SPEED CAMS!! Please note that were only discussing tools herewell talk about any necessary supplies (thread sealant, cleaning solutions, storage bags, assembly lubricant, etc.) The cam bearings were a different story and had to be replaced.
If you search online, the internet will tell you that you need to shim the oil pump for maximum performance. The PRV spring postpones the opening of the valve by an additional 10 psi. The front timing cover can be a little tricky to align by eye when doing it in the car as you may not know the alignment is off until the crank seal decides to leak when the car is running and we all know what that means. Harmonic Balancer is coming off.
If you dont know all of the LS engines torque specifications by heart, Summit Racing has this handy chart that can be referenced. Rod bolt stretch gauge: Some high-strength aftermarket connecting rods use a bolt stretch specification for fastener tightening, and a gauge like this will be needed to measure it. Flywheel holding tool: There are a few times where youll need to hold the crank steady in one position, and the best way to do this is to install your flywheel/flexplate on the back and use a flywheel holding tool (the one pictured is the official GM J tool). Plus, every seal and gasket had paid their dues on this engine and needed to be replaced. We then torqued the rod bolts to 15 lb-feet of torque and rotated the bolt 85-degrees since we had the second design rod bolts. You can do this without special tools if you are very careful; however, it is more foolproof if you have the right equipment for the job. True, there are lots of stopgap repairs that can be performed to get some engines up and running temporarily, but a complete rebuild is the only way to get any engine to perform reliably for many years to come. Well go through this step-by-step in Chapter 3. Since our first LS engine didnt go as planned, we had to purchase a second one, and it was nasty. For our application, we used the Melling high-volume, high-pressure oil pump (PN 10296), which supplies 18-percent more oil flow. LSX Workshop Tools | Engine Builder Must Have's. Made by SPX Kent-Moore, these are the official GM J tools, and they are very expensive, so try to find a tool outlet that will rent them to you! We also used the Mr. Gasket front cover alignment tool (PN LSTC1) to straighten the cover before installing the harmonic damper. Making simple changes such as a cam swap, changing lifters or even going further into the build such as stepping up to ported heads can all effect the pushrod geometry which can cause serious issues if not calculated correctly.Although majority of camshaft packages come with a set of pushrods at the standard 7.400" length which covers 80% of applicaitons it does not mean that the length shouldn't be measured to ensure two important factors are correct. Cant find what youre looking for? After we tore the engine down, it was evident that the number six cylinder had seen better days and would need to be bored. In fact, many vehicle service manuals comprise 4,000 pages or more! Another area of interest is the proper way to install an oil pump. After we threaded the bolt in by hand, we then torqued it to 235 ft-lbs as instructed. For this reason, it makes things easier if you have a dedicated crank socket. Ours looked good, so we went ahead and installed it. This will center the pump and alleviate any problems that you might have from disassembling it.. The SI Series bearings are of high quality and very affordable. Unlike the cam bearings, rod and main bearings are easy to replace and affordable since no special tools are needed. Theyve redesigned the LS engines main thrust bearing by symmetrically adding a third oiling hole to the upper thrust flange bearing and removing the locating lug. Many engines are scrapped before they even get this far. Weve already talked about some of the equipment required to diagnose and determine whether you actually need a rebuild, and now its time to discuss the tools needed to perform the actual over-haul process itself. oil gets discolored quickly / foreign substances in oil, low oil pressure (ex., below minimum 10 psi / 1,000 rpm), excessive coolant consumption / discoloration, abnormal engine noise (clunking, banging, etc. Secondly, when you order new bolts for your build, you want to make sure to order the correct ones. Have a few adjustable wrenches ready as well.
For now, well also note that if in thumbing through this book you feel any part of a rebuild task would be beyond the constraints of your time, patience, or abilities, machine shops can almost always help you out with whatever labor, parts, or advice you need assistance with.
Its really easy to tell which pump has 175,000 miles on it. Its important to note here that GM used two types of rod bolts on the GEN III engines. There are, of course, other items you almost certainly dont have yet, and some of these must be purchased from special engine build tool suppliers (or borrowed from tool rental outlets). Now, hold on a secyou may be thinking, isnt this book supposed to tell me everything I need to know about rebuilding an LS engine? The answer is yes with a small caveat. With the bearing tolerances to our liking, we cleaned the Plastigauge off and then lubed the main journal bearings with Mellings engine assembly lube and put the caps in place. Since the piston rings were so dirty, it was easier to replace them rather than try to save them. Some engines have star head (TORX) bolts as well, so have a set of those around too. There are several ways to remove the plastic oil galley plug. The Mr. Gasket Alignment tool makes lining up your front cover a snap. With the crankshaft secured, we moved our attention to the rods and pistons. To determine this, you first need to know what, exactly, we mean when we use the term rebuild. After this, there are some important questions youll want to ask, like: Is this something I am capable of? What tools are needed? And, Where can a rebuild be performed? Well try to answer all of these and more in this chapter. Previously, we reached out to Mike Osterhaus, VP of Aftermarket Products for Melling Engine Parts, to ask about its different camshafts and performance levels. It was apparent the cylinders had a lot of miles on them because the cross-hatching was no longer visible. Now your cam swap/engine assembly is done & it's time to spend your holidays on the road enjoying your new mods instead of in the garage because you don't have the right tools to get the job done. Virtually every complicated task in life requires at least a little bit of outside help, and a rebuild is no exception. LSX now offer a range of the same LS engine assembly tools that we use to make installing your new upgrades a breeze. Engine stand and hoist: If youve been working on cars and engines for any amount of time, you already have these. Valvespring compressor: This tool is used during both disassembly and assembly of cylinder heads, and youll need one heavy-duty enough for automotive valvesprings. When this load changes, the rods and mains need to be aligned-honed by a machine shop to make them round again.
So an engine with larger bearing clearances, higher flow rate lifters, added piston and valve spring oilers is a good candidate for a high volume oil pump, Osterhaus explained. Tommy Keeter, owner of KPE, hot-tanked the block, pistons, rods, oil pan, front and rear cover, and had them ready for pick up in a couple of days.
Theyre a bit pricey, but the information they provide is official, (usually) very accurate, and far more comprehensive than in some of the cheaper off-brand manuals you can pick up at the local auto parts store. Carlisle Truck Nationals Are Almost Here. Now that youve got a better understanding of just what a rebuild is, and are better aware of the resources and tools you need to successfully complete it, you can move on to disassembling your LS engine. Valve seal puller: To ease the task of removing your valve seals from your cylinder heads (if youll be disassembling yourself), a valve seal puller tool is a nice item to have. Some of them actually are mandatory, but have been placed in this category simply because an alternative tool exists that you may substitute if desired. You should have standard sockets as well, though, particularly if youll be installing any aftermarket parts (which many times use standard bolts and nuts). With our short block on the engine stand, we didnt have room to get the plug out of the engine. Gauging plastic: Whether you want to call it a supply or a disposable tool, this stuff is the easiest and most foolproof way to measure bearing clearances.
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