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GM 3100 V6 rebuild (3.1 litre)

2012-03-06 : Rebuilt GM (Chevrolet) 3100. New main bearings, rod bearings, camshaft bearings, piston rings, head gaskets, valve cover gaskets, EGR gaskets, intake gasket, plenum gasket, Exhaust manifold gaskets, valve stem seals, thermostat, oil pan gasket, oil pump, water pump, oil filter, engine oil, and paint. I neglected to include piston rings in the audio, but the engine does have the new rings.


 


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3100 Engine Rebuild
Rebuilding a 3100 V6.... Repair cost was $1,200 using Re-man cam and crank.





How To Unsieze An Engine
This is the diesel I got for the Astro van, basically free, with the 700R4 transmission. Which ironically turned out to be a great transmission, the only one of three that has a good fourth gear, but I rebuilt it anyway. Who knew a 30 year old automatic could still be sweet inside. I have unsiezed this diesel engine like this three times now. It obviously has some internal problems. So its on the list to get a tear down and rebuild, right after the Ranger is back together. It takes about an hour or more to get this motor turning over 360 deg. Then it won't quite fire, but makes little smoke puffs. The starter in the 6.2 diesel has some serious torque, sucks the battery voltage down and makes a tremendous amount of heat. It still takes an hour of cranking an eighth of an inch at a time.





GM 3400 / 3100 3.1 3.4 Engine Misfire Cause & Causes Miss Missing P0303
Here is a video for fellow GM 3400 & 3100 liter engine owners. Have a misfire? This video explains the causes for what could be causing the problem. Mine showed up as a P0303 cylinder 3 misfire. Couldn't figure it out, but finally did. The spark plug and wire were replaced along with a new coil. Could hear the injector firing with a stethoscope but still had the miss. Found out after tearing into the intake that the lower intake was cracked. If your car is missing out, first try the following. Check for spark and check the spark plug, wire and coil. A test you can do if it randomly misses is in the dark, spray a mist of water around the plug wires. If you see blue arcing, you've found the problem. But be careful not to zap yourself, IT HURTS! If the spark is good the listen at the injector. Is it firing and clicking? If not, you've found the problem. If both those seem good, then check for compression. Do this with a compression tester available at any Autozone with the loan a tool program for @$40. If all 3 of those check out then it's a possible vacuum leak. May be time to do an intake manifold gasket repair as they are known to go out. But, if you do have to do an intake manifold gasket fix, go ahead and replace the head gaskets too. You'll be glad you did. Not fun taking it all back apart again. Check out my youtube channel for these videos both on doing the lower intake manifold gasket and the head gasket. Got questions about this engine? Leave a comment in the section below and I'll try to help! VT247





Spinning over a V6 GM engine
The piston sequencing is shown for a 3.4 liter GM V6 engine. Note, it turns out that I numbered the cylinders wrong, what I call #1 is actually #2, and what I labelled as #2 is actually #1. So the Actual firing order as a regular V6 engine, is 1,2,3,4,5,6, I know, weird, but that is they way they made them. I am more used to V8 engines, so that is why I numbered the cylinders the way I did. Either way though, it shows that the crankshaft will not work as it is for the Junkyard Deltic project. Time to cut and weld the crank!!!!!!!!





3.4 Liter GM 3400 Engine Replacement / Swap 1999 Alero / Grand Am 4 Door
Bought this 1999 Oldsmobile Alero For $800 with a known bad motor. Engine was shot, knocked and burned antifreeze due to a bad head & intake gasket. So, I found another 3400 from a wrecked Grand Am. Was smoked in the back. Got the replacement engine for $500 (ouch). Put on a new intake manifold gasket on the replacement motor as well. Pulled out the old engine and replaced it with the new one. Runs like a champ now! These engines are good, if the intake manifold gasket has been replaced. Put lots of silicone to each edge of the gasket. Sealed up great! No smoking and no leaks like these are natorious for. VT247





3400 GM Engine 3.4 Liter Motor Explanation And Discussion
Opening up a discussion and repair blog on the 3.4 Liter GM Engine. GM put these engines in a lot of their cars and minivans. They're relatively good engines after a few repairs. Problems, fixes, links to repair sites, open it up for whatever, feel free to post & comment.





GM ( Chevrolet or GMC ) 4.3 L V6 Engine Tear Down
This video goes through the teardown process of a GM 4.3L V6. It has been removed from the vehicle and we take it apart, except for crank and piston removal. Visit: http://www.autoeclinic.com/ The automobile consist of: Powertrrain 1. Engine: • Fuel System: Purpose is to deliver fuel to the engine. It consists of the fuel tank, pump, gauge/sensor, filter, pressure regulator and injectors. • Air Intake System: Purpose is to clean and direct outside air into the engine. It consist of air filter, ducts, air plenum and intake manifold. • Exhaust System: Purpose is to direct Exhaust gasses out of combustion out of engine. It consists of the Exhaust manifold, converters, pipes and mufflers. • Cooling System: Purpose is to remove excess heat from the engine. It consists of water pump, hoses, radiator, thermostat, cooling fan and coolant recovery tank. Also the oil system serves as a cooling system as well as a lubricating system. It consist of oil pump, pan, filter and cooler. Drivetrain: 1. Clutch: Purpose is to connect the engine and transmission together. It consists of clutch drive disc, driven disc, release bearing, clutch fork, cable, slave cylinder, master cylinder. There are three types of clutch systems: mechanical, cable and hydraulic. 2. Transmission: Purpose is to match engine speed to road speed. Two types used are manual or automatic. These consist of gears, linkages, cables and converters for automatics. A manual is connected to the clutch by a flywheel and automatic by a flexplate. 3. Driveshaft: Purpose is to connect the transmission to the rear axle. It consists of a slip yoke, shaft and universal joints. 4. Rear axle differential: Purpose is to change the angle of motion from engine to the wheels. It also divides torque between the wheels. It consists of a ring and pinion gear, carrier, bearings, crush sleeve and axle shafts. 5. Wheels/Tires: Purpose is to provide traction to the road as well as carry the weight of the vehicle. Vehicle Control Systems: 1. Brakes: Purpose is to slow and stop the vehicle. It consists of master cylinder, brake Booster (vacuum or hydraulic), calipers, drums, pads and rotors. 2. Steering: Purpose is to direct vehicle in the required direction. Consists of steering gear (rack & pinion), steering wheel, column, inner/outer tie rods, pump, reservoir, hoses and pipes. 3. Suspension: Purpose is to provide stability and handling while also providing comfort to the ride. Consists of shocks, struts, sway bars, end links, springs, trailing arms and bushings. Comfort System: 1: Heating Ventilation Air Conditioning (HVAC): Heats and cools interior air to passenger comfort. Also circulates outside and inside air. • Air Conditioning: Consist of condenser, compressor, accumulator (receiver/dryer) orifice, expansion valve, hoses, evaporator, controls, actuators and modules. • Heating: Consists of heater core, valves, hoses and switches. Electrical Systems: 1. Power Generation: Creates electrical power to run all the electrical systems. Consists of the alternator. 2. Power storage: Stores unused power to start the car and supply voltage to the alternator to create more electricity. • Both systems consist of wiring, harnesses, fuse, relays and modules





Cleaning EGR Passageways in 3.1L
Cleaning the egr valve passageways in a 3.1l 3100 sfi how to





CHANGING SPARK PLUGS AND WIRES GM 3.1/3.4 V6
Please like and subscribe this video comment with questions you can always email me at joetheautoguy@gmail.com in this video joetheautoguy shows you how to change plugs and wires on a general motors 3.1 liter v6. these have many different ways but i find that this is the easiest. check out my blog for a little more insight on this repair http://joemakinmoney.blogspot.com/2013/03/changing-spark-plugs-and-wires.ht ml





Attention GM 3.1L 3.4L and 3.5L Engine Owners
Newer versions of these engines don't make this sound because they have a special insulation in the block.





GM 3.1 V6 Blown Head Gasket Test
This video was taken after replacing the upper and lower intake manifold gaskets, a very common problem for this motor. We had compression tested it and tested for hydrocarbons in the radiator before repairing the intake and neither indicated a blown head. It was not until we tried to get all the air out of the cooling system for several hours that I decided to do a cylinder leakdown test which, in this case, proved to be a far more accurate test in indicating blown head gaskets.





blowing a 3.1 mpfi v6 engine
customer brought in a Z24 just like mine! 3.1 5 speed... 3.1 was blowen, sounds like a wrist pin let go. for the same price of replacing the old 3.1 with another old 3.1, he decided to bring it to me, the expert! and have a 3400 SFI installed!





2000 Malibu head gasket & Intake gaskets
Part 1 of two videos documenting my repair of a 2000 Malibu.





1998 Chevy Malibu Engine Removal Tips & Personal Milestone
Watch to the end for tips on removing this 3.1l v6 engine.





GM 2014 3.6L twin-turbo V6 Build Animation
Here's how GM's new-for-2014 twin-turbo 3.6-L V6 goes together, component by component. Animation created directly from GM's CAE files on this hot new V6.




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