Methods that *appear* cheap but are generally not recommended include:
* JB Weld or similar epoxy: This is often suggested in online forums, but it's highly unreliable for a cylinder head crack. The heat and pressure inside the engine will almost certainly cause the epoxy to fail, leading to coolant leaks, loss of compression, and potentially a ruined engine. It might temporarily seal a very small, superficial crack, but it's not a permanent solution.
* Metal welding (by an amateur): Improper welding can easily warp the head, rendering it unusable. Even if done by a skilled welder, it's an expensive repair, and success isn't guaranteed.
The only reliable and (relatively) cheap option is to find a used replacement head in good condition. This is the best balance of cost and reliability. The cost of a used head varies significantly depending on the make and model of your vehicle, but it's usually far cheaper than attempting a repair that's likely to fail.
Why attempting a cheap fix is a bad idea:
* Safety: Engine failure due to a cracked head can cause serious damage to your vehicle and potentially lead to accidents.
* Cost: A failed cheap fix will likely necessitate more expensive repairs later on, potentially costing you much more in the long run than replacing the head.
* Reliability: You'll constantly worry about the engine failing, which can affect your driving experience.
In short, while the allure of a cheap fix is understandable, a cracked cylinder head needs professional attention or a used replacement. Cutting corners here is almost always a false economy.
