to replace a #4 cylinder exhaust valve lifter, do you have to do anything with the head gasket?
to replace a #4 cylinder exhaust valve lifter, do you have to do anything with the head gasket?
My car has 52000 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hello. If you’re replacing the lifter with the cylinder heads attached to the block, you shouldn’t have to remove the cylinder heads or do anything to the cylinder head gasket. However, if the reason you’re replacing the lifter is due to excessive smoke from the exhaust, that symptom may be caused by damage to the gasket, which is why you should always replace the gasket as a proactive measure anytime you’re working on cylinder head hardware. It’s also a good idea to complete that job away from the engine, as it’s possible to drop debris inside the oil galleys. If you need help, an expert from YourMechanic can inspect your exhaust system and make the necessary repairs.
How to Identify and Fix Common car Problems ?
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It may take a few days to a week to burn off all this fluid out of the exhaust. One of the quickest ways to burn off all the coolant quicker is to hold the throttle at about 2000 rpms when in park for about 10 to 15 minutes.
They`re key to controlling air flow in and out of the cylinders and fuel deployment. The cylinder head also holds the injectors and valves – and contains more moving parts than any other part of the engine. Although largely unnoticed, the cylinder head plays a key role in your engine.
White Exhaust Smoke
White smoke billowing out of your exhaust means that coolant is likely leaking into the cylinders. This usually happens when there has been a breach in the head gasket, which makes the coolant create this white steam.
One of the telltale symptoms of a blown head gasket is white smoke from the exhaust. It`s important that the smoke is white because blue or black smoke can indicate a rich running engine or an engine that is burning oil.
The entire process of a cylinder head replacement takes five or six hours. A cylinder head replacement involves draining the coolant and oil, removing the engine intake and exhaust manifolds, removing the timing chain or belt (if the engine has one or more), and removing the cylinder head.
can cause head gasket failure but, conversely, a blown head gasket can also cause the engine to overheat. Hot exhaust gases can leak into the cooling system, or coolant can leak into the cylinders and be burned off as steam, either way, the end result is an overheating engine.
If the head gasket fails in such a way it allows the compressed air/fuel to escape, the compression of that cylinder is reduced. This loss of compression results in a rough running engine and a notable reduction in engine power. This sort of failure typically is accompanied by a sound like an exhaust leak.
FAQs. How long does it take to bleed air out of the cooling system? Usually, it takes about 15-30 minutes, depending on the model and method you follow. It, however, takes 15-20 minutes to heat the engine and get rid of the coolant.
A coolant flush takes around one hour to do properly, as you`ll need to drain all the old fluid and fully flush the radiator before you can refill it with the new coolant. In the next section, we will be giving you step-by-step instructions for how to do a coolant flush at home.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
to replace a #4 cylinder exhaust valve lifter, do you have to do anything with the head gasket?
ANSWER : Hello. If you’re replacing the lifter with the cylinder heads attached to the block, you shouldn’t have to remove the cylinder heads or do anything to the cylinder head gasket. However, if the reason you’re replacing the lifter is due to excessive smoke from the exhaust, that symptom may be caused by damage to the gasket, which is why you should always replace the gasket as a proactive measure anytime you’re working on cylinder head hardware. It’s also a good idea to complete that job away from the engine, as it’s possible to drop debris inside the oil galleys. If you need help, an expert from YourMechanic can inspect your exhaust system and make the necessary repairs.
Do I need to replace valve lifters after having the cylinder head rebuilt on my 2001 Toyota Camry
ANSWER : Hi there. When you have the cylinder head rebuilt and a valve job done then that will change the height of the valves in the head. The lifters are set a specific thickness to offset the depth that the valves are at. The valves will need to be set to the proper clearance using the correct lifters. With that being said you cannot mix them up and just install them without having issues. This should have been done by the machine shop when the cylinder head was rebuilt.
i have a 1994 z28 and i did a head gasket replacement for some blown head gaskets. I then tried changing the timing gears and when
ANSWER : Hi there. It really depends on the location of the motor (meaning if it’s installed in the vehicle or loose and on an engine stand), that would factor into the price and whether this is a project one of our mobile mechanics can complete. We can complete the oil pan gasket replacement, but some of the other jobs like wiring harness, intake and rocker arm installation is outside of our scope of service. In regards to estimates for those services, I would suspect it would cost anywhere from $400 to $1,000 based on where it’s completed and what supplies would be needed.
Why am I losing compression on cylinder #4 on my 2006 Mazda 6
ANSWER : Hi there. If you are feeling air pressure coming out of the engine in this area then you have a problem with warpage or a crack that is not seen. Once everything is put together and torqued then you should not get any air. It is possible that you got a bad head or you may have a valve issue if the pressure is coming from the intake. You need to get some assistance from a certified mechanic, like one from YourMechanic, that can come to you to [diagnose why there is a loss of compression] https://www.yourmechanic.com/services/noise-from-engine-or-exhaust-inspection
Engine won’t start while hot after replacing head gasket.
ANSWER : Hi there. The code 12 is for your distributor has no reference. When the engine gets hot, the secondary circuit on the ignition coil gets hot and will not work. I recommend replacing the ignition control module and then recheck. If the symptom continues, then you will need to change the ignition coil. As for the brakes not working, check the master cylinder for the fluid and make sure that its full. Look for any signs of brake fluid leaks. If the fluid is full, the pedal is firm, and there are no leaks, then the brakes may need to be replaced with new rotors and new drums. If you need further assistance with the distributor and the brakes on your vehicle, then seek out a professional, such as one from Your Mechanic, to help you.
After valve cover gasket replacement, compressor broke
ANSWER : Hi there. Thanks for writing in about your 2000 Lexus GS400. Compressors can go bad due to oil saturation. It is likely that the technician spilled additional oil on the compressor when replacing the valve cover. The technician may have dealt the final blow to the already weakened compressor if they did spill such additional oil onto it. Unfortunately there is no real way to prove if this was done or not. If you need to have this taken care of, a qualified professional, such as one from YourMechanic can take a look at the car and replace the compressor if necessary.
Pete, I need valve cover gaskets and timing cover gaskets replaced, I have the gaskets / kits for all. Price please? Thanks, David
ANSWER : Hi there. Typically when the timing cover gasket is replaced, the cover itself should be replaced as well. To receive an estimate for this service, and the valve cover gasket, please click this link and enter your vehicle information and services requested. Once we receive the data, we’ll send you a quote via email. Thanks.
New exhaust gasket and manifold, still have exhaust leak.
ANSWER : The trouble with small exhaust leaks is that they always turn into large exhaust leaks. The hot gas leaking past the gasket will eventually burn up the gasket making the leak worse. If not corrected, it will also burn the surface of the exhaust manifold. It rarely goes so far as to burn the cylinder head, but that can happen in extreme cases. To make matters even more complicated. having an exhaust leak also allows air to enter the exhaust stream and messes with the oxygen sensor reading. Mixture too lean trouble codes will follow as the system shifts rich to try to correct. So, if you want to keep this truck, you need to get this fixed. I’m not sure I buy the line about the head being warped enough to prevent the manifold from fitting, maybe you should get a second opinion on this. You can have this done by contacting Your Mechanic. They will send a technician to your home or office to check out your exhaust leak and let you know what can be done about it.
