![]() ![]() The failure can be a break in the gasket. The gasket can be made out of metal, deformable material, or a combination of both. The gasket will be a thin piece of sealing material that can be seen once you remove the head.Look at the head surface and the block along with the gasket for the failure areas. Once all head bolts are out then lift the cylinder head off of the engine block.Follow the manual and manufacture requirements. Some head bolts cannot be reused and must be replaced. The cylinder head is held on by several bolts and some engines have a sequence for the bolts' removal.Either take pictures or write down each part to help you remember where everything goes once you're done. Be sure to study the timing belt/chain alignment procedures and be sure you clearly see the alignment marks before you disassemble the timing components. On many engines, you will need to remove the timing belt or timing chain. Refer to your car's service manual for specifics, but in most cases this involves removing the exhaust manifold, the intake manifold, valve cover and drive belts. X Research source Remove the parts that are connected to the cylinder head. I've been to factories where these were built.Drain all of the oil and coolant from your engine. Engine heaters were one of my product lines. In a previous job, I was a product manager for the largest chain of auto parts stores. Using a heater against the manufacturer's recommendation (like a tank heater in some cars) can crack the head. There are also battery blankets available, but I don't know if this would be recommended in a Miata. They are good at warming the coolant in a shorter period. Tank heaters go in line with a heater hose. Check with the manufacturer's catalog to see if it will work on your particular vehicle. Heater hose heaters are decent, but not for every car. You clean your oil pan very well, and adhere it. ![]() These are usually about 75 watts (similar to a light bulb), and won't warm the coolant when it gets very cold.ĭipstick heaters are useless. If you have a freeze plug heater, it should be plugged in when the car is warm. And the heater unit with a pump and whatnot would be a lot of added weight, but it could be removed when not expected to be in use.Īt this point, I'm just rambling and thinking out loud, in case you haven't noticed. Then again, where electric is readily available, an electric unit may be much better, especially since the Miata doesn't have the battery reserve to run a pump all that long. 02 Mazda 626 which was overheating flushed radiator, flushed heater core. And you don't have to have anything to plug into, electric-wise. I am trying to remove the upper oil pan on a 1996 Mazda 626 with a 2.0 motor. Another benefit is that you can run the cab fan with the heater as well, so you pre-heat the cab. I've been researching the matter for my truck, which has considerably more coolant and metal in the block, not to mention plenty of battery reserve to run a pump without issue- anyway, I'm hunting for an Arctic kit, which as you likely know, burns diesel for heat and pumps the coolant around. Then again, on an engine as small as a Miatas, it may not matter. ![]() Units that have some manner of pump involved generally work a bit faster. It does work well, given the right amount of time. ![]()
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