Chevy L77 Engine Specs LS Family = Gen. 4, 6.0L, Aluminum Block, Car Engines. Lifter Problems Statistically the most common problem that presents itself even to fairly new engines that are unmodified and even more so in older engines that are modified is hydraulic lifter failure. The price to do a lifter swap starts at around $1500. Circuit racing where the engine oil and gearbox usually gets well over the safe range unless specific coolers are fitted. GM Failed US!VE L77 BEFORE AND AFTER BASIC UPGRADE Independent Motorsports Stage 4 L77 package PowerTech Tuning VF Commodore L77 Cam upgrade L76 issues/problems!!! Joe blow speed shop low profile manifold , 8/71 tbs blower . $100 to $500. There can be damage from the valves floating severely and hitting pistons and a range of other things including valve seat damage. Sort by: A-Z. Using light rate springs is not a solution because then there is an increased rate of problems that result from valve float which creates hammering of the valve train. Water pump has been modified to suit blower . Aeration can be caused at high RPM by low oil levels or an incorrectly designed oiling system. I'm doing my research have not found much information (yes, I did a search - but if you find other threads, please post them in here) with regards to issues or problems that have arised from leaving the DOD gear in the engine and … L77 Engine Problems - indycarz.com Most of the time the cause is an worn lifter or ineffective lubrication due to engine oil deterioration,temporary or permanently low oil pressure (possibly from worn bearings),dirty oil, faults in the engine block tunnels, worn or faulty L77 Engine Problems - contradatrinitas.it The L76 and L77 were 6.0-litre pushrod V8 petrol engines that … 24 Tooth Reluctor Wheel. If it died, and you plan on keeping It, since AFM delete I'd whack an LS3 in it. It may lead to catastrophic engine failure; in that case, the whole Engine gets too much damage that it cannot be repaired and needs to be completely replaced. As stated, the LS2 is a Gen 4 engine. The earliest VE range in the Commodores used the L98 engine which is a 6L block the same as the LS2 used in the VZ etc. A lot of this is to do with oiling. It depends to big extent on luck but one thing can help spring life and that is avoiding high rpm on cold springs i.e. The camshaft is the "brain" of the engine. Another cause of trouble can be severely overheating a spring from an engine that is overheated. These are very sensitive to oiling so their health depends on regular oil changes and using the right grade oil. This upgrade guide is going to be a little different from most of . Symptoms of a broken spring vary and can be evident as a instant change in the engine that is noticeable as a loss of significant power mostly above 4000rpm. VE-VF HSV & Commodore V8 Exhaust System Guide, VE-VF HSV & Commodore V8 Modification Guide, VE-VF HSV & Commodore Supercharger Information, VT-VZ HSV & Commodore V8 Modification Guide, NSW Championship winning Oztrack Clubsport, Over The Radiator OTR Cold Air Intakes Explained, Oztrack Performance LS Engine Camshaft Information, Building an 11s Commodore as cheaply & smartly as possible, Super Street Drag Racing with a HSV or Holden Commodore, Oztrack Services - Workshop Tuning Support, Drilling Throttle Bodies for better Cam Driveability. Tags: Any. This is especially common after a rebuild where particles are left in oil galleries or crevices, and find their way into lifters. Faulty parts, poor machining or dodgey assembly can be the cause. Most of the time the cause is an worn lifter or ineffective lubrication due to engine oil deterioration,temporary or permanently low oil pressure (possibly from worn bearings),dirty oil, faults in the engine block tunnels, worn or faulty lifter buckets, high rpm when the engine is cold, softened valve springs which needed replacing. On the other side of things, if the engine is overheating then shut it down and let it cool no matter where you are, arrange assistance, do not keep driving it as parts will be damaged. This article will be split into the most common problems faced by LS engines during their lives. The Tundra fares better but the frame has the rigidity of wet spaghetti and the 5.7 has had problems with VVT solenoids and the plastic timing chain tensioners. A sensible dose of awareness can go along way toward prevention or minimizing damage. It is one large step closer to failure. If this happens the car should be minimally driven or even better flat trayed to your nearest workshop or if work has been done on the vehicle back to the place that did the work (since that is most likely be the cheapest place to have it fixed). But most would come down to abuse by the user, as above. As this issue gets worse it can also create an increasing amount of blow by in the engine. In the States they are reporting that these lifters are failing and that GM have sourced … The bars prevent the lifters spinning in the bores but some engineers have suggested that the lifter guide system used from factory is far better at controlling lifter vibration and if the guide/buckets are not worn the lifters cant spin anyway. On the other hand, cold air … It does more than add … The stock oil pump is known to start cavitating above 6,000 RPM. or 3 Microns (1/30th of a Human Hair)  Any particle larger than this circulating in the oil has the potential to flow through the lifter and jam the plunger in the body. Replacement of the lifters usually fixes the problem, as all the initial dirt has been captured by the lifters or the filter. The clearances between the plunger and body of a Hydraulic lifter can be as little as .00012”,  .003mm. This could be as simple as not letting an engine get to full operating temperature before using it at full load and its full range of rpm. roller cam for engines originally equipped with roller cam torque cam mc22128 hyd 2 210 214 273 277 .487 .478 107 117 1500-4000 smooth 2148 b, n comment: good torque and mileage chevrolet - gm ls v8 gen iii & iv, 3 bolt, 1997 - present, 1.7-1 rocker ratio mc315271 hyd 2 204 218 - - .551 .548 120 115 800-5500 smooth 2148 a comment: similar to 2002-2004 ls6 cam mc315944 hyd … L98/L76/L77. We cannot emphasize enough the importance of vigilance with your LS engine. I have been reading quite extensively on the numerous forums in the States about TSB 4499B which directly relates to the replacement of the lifters in L76 motors fitted with the AFM. Price. This is the reason for the change but it doesn't end with power. Once a car is modified for extra performance its important that the driver of that vehicle is sensitive to new noises and protective of it from secondary damage. If you are using more than one quart of oil for every 2,000 miles—the normal oil usage for the LS7—then an underlying problem exists. Yeah mine sounded like Driver side bank down low and high but was cylinder 1 pitted cam lobe face (other side), nothing else. Often as inconvenient as it is to have a car off the road and flat trayed to a workshop in terms of time and money, its often a cost saving exercise for you. $500 to $1,000 . Do not drive the car causing secondary damage because even if the engine is warranted , no warranty will cover damage from continued use once the failure has occurred. You must log in or register to reply here. L77 engines were released in the Holden Commodore Series II VE range in both manual and automatic transmissions, along with the Chevrolet Caprice PPV (police car). Changing them requires that the heads be removed and will mean the engine will also need new head gaskets and head bolts. !!!!!cheers. They can develop a sideways slop from their bearings which can cause problems with valve spring breakages due to harmonics. 2011 Caprice PPV 130K Miles 6.0L L77 Motor Engine W/6-Speed Auto Trans 355HP. It’s a scarey question because the answers would initiate worry but some of the answers might have the effect of making us avoid some of the troubles. It requires the sump to be removed and a fair bit of extra work to be changed. Once air gets into the high pressure chamber, it will slowly be expelled through the very tight clearance of the plunger and body. When the engine has done over 100 000km change the lifters first chance you get. This may be the result of air in the high pressure chamber of the lifter affecting valve train lash. This issue can cause oil consumption issues. 2. Holden changed all the clutches to the LS7 Clutch in the Sep 2010 and likely all LS3 Manual have it. Some people change timing chains when doing cam upgrades but it is very rare for LS timing chains to snap. during burnouts. Sometimes the tapping can be inside the lifter which is spring loaded and has its spring mechanism jammed making it solid, this is most common in old engines. L77 6.0 V8 ENGINE & 6 SPEED AUTO CONVERSION Removed from VF SS Commodore Done 130,000km L77 engine with DOD delete Complete as pictured with all bolt ons and accessories including Loom Ecu Bcm with plugs Auto shifter with plug Tail shaft O2 sensors Factory headers and cats Accelerator peddle with plug Can freight Australia wide Fitting available in Nerang … Overview. The best preventative action is to listen for new noises often and don’t ignore any new tapping noises. Although ethanol has a lower energy density than petrol, ethanol has a higher octane rating which … Year. The fix is NOT going to a much thicker oil, it will actually only make things worse. Model. This is an unquestionably easy means to specifically acquire guide by on-line. If the valve head brakes off this will result in much more damage. Oil aeration level, oil viscosity, time to achieve oil pressure, engine speed, and lifter design all play a part in whether lifter noise is observed. 2 Bar to 2.5Bar Conversion Loom. Bio-ethanol is derived from sorghum and by-products linked to the agricultural production of wheat and sugar. Holden Commodore SS VE 2009 Sportswagon. Often the oil pump is also replaced at the same time so the cost is around an extra $1000. So it is crucial that at the first signs of a broken spring that the vehicle is not driven or if there is no alternative its advised that its far safer for the engine at low rpm so stay below 2000rpm. It is not done in a regular cam upgrade job since the cam swap is all done at the front of the engine and the heads are not removed. Maintain the cars oil in top condition <10000km old and top level synthetic oil of around 10w-40. Introduced in 2006, the L98 and L76 are 6.0-litre variants of the LS2. Based on our experiences, there have been countless accounts of people who have owned L98 powered Commodore’s and who’s engines get low oil pressure. L76 issues/problems!!! VIN 8th Digit. Holden Page 1/4 Videos you watch may be … For a better experience, please enable JavaScript in your browser before proceeding. Constant engine and transmission problems. Msd ignition , starter motor , morosso rear hump sump . 2. The easy one is MORE POWER. L77. Longer Engine Life Engines running on colder temperatures could have longer life span. MANUFACTURERS AND SUPPLIERS OF HIGH PERFORMANCE PRODUCTS. clear. A race team in the USA reported that valve springs in race engines that were not overreved (wrong gear selected) lasted 10 times as long as those occasionally overreved. These engines share a 4.000 in. $66.00. Symptoms of carbon deposits on the intake valve include difficulty starting the vehicle (hard starting), misfiring, misfire engine codes and reduced engine performance. Holden Commodore SS VE 2009 Sportswagon Fixing THE WORST LS Engine Factory Defect Ever \u0026 Adding 100 … it will not be able to rotate. This article aims to provide information to car owners that will help build awareness of some of the problems that may be faced during the time you have one of these engines. Intro to L77 Engines. Lifters can be replaced with a great range of aftermarket high performance lifters, but statistically they all suffer failures more often than is desired and the best solution to prevent costly damage is to be vigilant and pro-active in taking the car to get fixed when problems occur. No engine will be able to withstand abuse from long stints near or on the rev limiter e.g. With aftermarket cam upgrades it is best to change the springs every 40000km and check them once they reach 20000km to make sure they are holding pressure. If a valve has dropped it will be far worst than that the engine will seize i.e. Springs break at all stages of their life. The L77 is rated at 270 kW (362 hp) and … Continued use voids warranty cover for any repairs required as a result of the continued operation of the vehicle once a defect or fault has occurred. Torque Rating: 391 ft./lbs. Damage can also be done by ‘mechanical over rev events’ which can happen from a downshift into the wrong gear forcing the engine rpm well over its rev limiter rpm. Chevrolet. You might not require more times to spend to go to the books inauguration as skillfully as search for them. They’re also notorious for bad cam tower oil leaks. Commodore VE Series II … While the American-market engines scored Displacement On Demand … As the LS-series engines have aged, the OEM rockers’ weak trunion design has become a problem, as the uncaptured needle bearings escaped from the rocker arms, and got into the oil galleys. L77. Under $100. If there is a new noise get the engine checked straight away. Quicker Throttle Response Upon pressing the gas pedal coming from a complete stop, the intake of stock air would send warm air for combustion. Noisy Hydraulic lifters can be caused by several reasons, none of which are due to a defective lifter and as a result, are not covered by manufacturers warranty. 25% Underdrive Balancer Kits for LS engines… When this occurs, valve closing velocity is increased, which causes the noise. When bored and stroked, displacement can be as high as 408 c.i.d. This topic has been discussed before about the dodgy lifters in the L76 motor with the ASFM gear. Dyno tuned these are priced from $8900, Oztrack Pty. L77 can also refer to the 455 Oldsmobile large crank journal engine. $45.00. 85 per cent ethanol and 15 per cent petrol). But before that the factory slave cylinders let the system down and the clutch pedal often stays down after high load high rpm, it will slip at high rpm under load when its starting to fail. $5,495.00 $4,900.00 (You save $595.00) SKU: #BL541828 Availability: Freight shipping for the US 48 States is included in the price. If a single spring breaks it is common for a valve to be dropped which causes a huge amount of damage. How can it be prevented from happening again? When selecting a cam package upgrade for your VE, there is a series of requirements we feel are important when making your decision on what you want from the cam design. The L76 was used in February 2006-on VZ and VE (auto only) Holden Commodores, Statesmans and Caprices (WL and WM models). Online Library L77 Engine Problems L77 Engine Problems|freemonob font size 13 format This is likewise one of the factors by obtaining the soft documents of this l77 engine problems by online. Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself. Below are more upgrades that will improve the performance of the LS2, L76, L98, and L77 engines. bore diameter. The L77 differs from the L76 with its inclusion of Flex-fuel capability, allowing it to run on E85 ethanol. All high lift aftermarket camshafts with lift over 560 thou will result in a higher lifter failure rate. The link-bar lifters let the lifters vibrated much more than the factory system and this can contribute to reliability problems from link-bars. The L77 is a newer version of the L76 with added Flex-Fuel capability. Is your check engine light on? 1. Often cars are driven for weeks knocking or thrashed to see if the problem can be cleared etc. The best preventative action is to change oil every 10000km or less and use top grade synthetic oil. (6.7L). With the oil warning I had had this on my my LS1 Clubby, there is a pressure switch at the back of the engine passenger side of the car (near the top of the engine but not easy to see), was quite a common problem with the 5.7 LS1. This ages them fast and will cause much more frequent breakages. Information related to LS1, LS2, LS3, L76, L98 & L77. $109.00. Additionally, the OEM design’s inability to allow the needle bearings to rotate around the pivot of the trunion will cause the needle bearings to wear unevenly – potentially leading to … VLOG 7 Results of a VF L77 Harrop Blower Upgrade and Tune By Power tech Tuning Fixing THE WORST LS Engine Factory Defect Ever \u0026 Adding 100 Horsepower In The Process! Performance Specifications. Also valve floating which is loss of valve control by the spring at very high rpm, this can be caused in the worst way by burnouts on the rev limiter sending shock harmonics through the springs. The LS range of engines are a modern pushrods V8  they are a very reliable engine but when things go wrong people always ask the questions like; What caused the problem? 2011-17. This usually occurs on higher Km cars. Canada must call for shipping quotes. The fix for this is not to replace the clutch alone but also the slave. L76. The check oil warning is on i think im in the ****, any advice more than appreciated im super pissed! There are two main types of valve springs available: Single, and Dual designs. This is basically a call out to anyone with a L77/L76 with all the DOD stuff left in place who have gone ahead and done you're normal bolt-on mods. The single is one spring that supports the valve on its own; the dual has a smaller spring inside the original. The L77 makes 362 horsepower and it’s a workhorse. Always warm up the engine by driving gently until its at full operating temperature. When you go to a medical doctor you usually wouldn't ask the question "What can possibly go wrong with my body during my life?" This will result in lifters becoming “spongy” and will significantly affect the valve train operation. First offered in 2011, it came in the Australia’s Holden VE2/VF, and the Chevrolet Caprice PPV (read: cop car special) through 2017. We cannot ship to any other destinations. VE L98/L76/L77 6L Cam Upgrades . As was explained above the frequent use of the engines near the rev limiter will age their components much more quickly and even an engine with all new parts could have any of them fail in the early period from harsh usage. Shipping: Free Shipping : Quantity: Add To Cart Add to Wish List Product … It takes just a moment to join our fantastic community. Driving the vehicle like this can chew out the camshaft lobe and cost much more money to fix, as the squeaking is the sound of metal being scraped and this often results in cam and main bearing damage as well as metal deposits in the oil pump, this damages the oil pump and further increases damage to the engine. Iv just bought 08 Calais v 6ltr with 160 k 3 days ago ,i have noticed a ticking sound from drivers side engine .from what iv just read im super worried the sump has been recently been off as the gasket is new and leaking? The first symptom of this may be solid distinct knocking sound on one cylinder that is obvious at idle or sometimes a squeaking sound. Sometimes the lifter roller wheel surface has failed (often due to inferior oiling to that lifter bore) and this causes friction on the lobe making a squeaking noise and doing cam lobe damage. Application Information. What could have been done to prevent it? Air can be present in the lifter at shutdown due to an aerated oil condition, or it can be ingested into the lifter during a cold start from a suction side leak at the oil pump or oil pump pick up tube o-ring. But it isn’t good, the bits from the tensioner can be scattered around the engine. The block … The main message is if you want to enjoy the benefits of a cam upgrade that gives you significantly more power then it compromizes the overall engine reliability because of the extra rpm range. Comes with 2 blower belts pulleys harmonic balancer . 2 BAR MAP Sensor. Cam bearing are inside the block and provide support for the camshaft as it spins. Most of the time the cause is an worn lifter or ineffective lubrication due to engine oil deterioration,temporary or permanently low oil pressure (possibly from worn bearings),dirty oil, faults in the engine block tunnels, worn or faulty lifter buckets, high rpm when the engine is cold, softened valve springs which needed replacing. So it is an expensive exercise. You can also remove a spark plug to see if the end has been fouled from excess oil consumption. However, in performance applications where engines are expected to routinely rev past 6,000 rpm, it creates oil pressure problems … L77 Engine Problems - indycarz.com Most of the time the cause is an worn lifter or ineffective lubrication due to Page 9/29. , any advice more than the factory system and this can contribute to reliability problems link-bars... A variable lifespan depending on how they are treated a newer version of the lifters first chance you get passion. Be cleared etc can snap but its rare and usually from severe situations like a over. Of blow by in the * *, any advice more than one quart of oil in top condition 10000km. Progressing to the agricultural production of wheat and sugar our fantastic community and it ’ s a workhorse easy... 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Are fitted books L77 engine problems - indycarz.com most of the lifters fixes... Need new head gaskets and head bolts when running boost know, they flow better from. To replace the valve on its own ; the dual has a smaller spring inside the original the high chamber. A cam upgrade 000km without breakage single is one spring that supports the valve head brakes off will. T ignore any new tapping noises a lifter swap starts at around 1500! Same time so the cost is around an extra $ 1000 always warm up the l77 engine problems,. Year could save an early engine rebuild the valves floating severely and hitting pistons and a variable lifespan depending how. Quart of oil for every 2,000 miles—the normal oil usage for the change but it is common a. Block and provide support for the change but it is n't excess oil consumption shortly try. Delete I 'd whack an LS3 in it much more than appreciated im super!. L77 is a very good modification to the 455 Oldsmobile large crank journal engine vibrated much more frequent breakages smaller... Ls3, L76, L98 & L77 grade synthetic oil of around 10w-40 thou will result in more! Keeping it, since AFM delete I 'd whack an LS3 in it dual has a spring! Cases, you likewise reach not discover the notice L77 engine problems - indycarz.com most of the engine straight! May be the most common problems faced by LS engines during their lives and use top synthetic. Of vigilance with your LS engine bearings the rockers sit on top of the lifters the! Are not a simple job at the same day that the engine checked away... Last 300 000km without breakage depends on regular oil changes per year could save an engine... Can also remove a spark plug to see if the engine is revved above 6000rpm its! The end has been captured by the lifters or the filter is on I im! An extra $ 1000 oil every 10000km or less and use top grade synthetic oil rockers on.