i have posted this question before but people misunderstood my question whats the best way to eliminate the head gasket ? and why is it there?i am a mechanic by trade for over 27 years and i'm certified there is a reason for me to ask that question ,anybody wanna share their thoughts with me please?
2007-05-23 13:31:26 · 12 answers · asked by kam j 1 in Cars & Transportation ➔ Maintenance & Repairs
27 years certified mechanic and you don't know the answer to this question? Remind me NOT to take my vehicle to you for repairs.
But I will answer as best I can anyway: The head gasket keeps water out of the engine by means of sealing the head covers to to the top end. When it fails, the engine will become super heated with steam, and eventually seize if not repaired immediately.
2007-05-23 13:42:28 · answer #1 · answered by The Oldest Man In The World 6 · 0⤊ 2⤋
I think what Kamj means is why is an engine built the way it is. In other words why are the top and the bottom end of an engine in two pieces so that it need a gasket. If it was one assembly there was no need for a gasket.
One of the reasons for two seperate pieces is ease of assembly. There are a few engines that do not have gaskets. Another reason is so that the block and the head can be made from different metals, like aluminium for the head and iron for the block. It will be quite a job to overhaul or build and engine that is one piece.
2007-05-23 13:54:40 · answer #2 · answered by Anonymous · 0⤊ 0⤋
As a mechanic you know that the head gasket seals both the coolant jacket as well as the oil passages, and some of the compression from the cylinder. Heads and engine blocks are not usually made from the same material and expand and contract at different rates with engine use.
All of these seals are important, but there is one more thing that a head gasket does. It has smaller diameter holes for the passage of coolant which without going into a big thermodynamic explaination helps cool the head.
In a nutshell if you remove it the engine will probably leak.
2007-05-23 13:49:45 · answer #3 · answered by mscrankyangel 4 · 0⤊ 0⤋
The best way to eliminate the head gasket is to eliminate the motor or you could try using a soft metal like lead solder applied perfectly even over the block . It is there because metal on metal contact never will seal the head to the block. The torque pattern and steps needed to make cast iron on cast iron seal would be almost impossible to fathom. Keep the gasket!
2007-05-23 13:51:01 · answer #4 · answered by Alex L 4 · 0⤊ 0⤋
Without the head gasket it would be nearly impossible to form a seal between the engine block and head tight enough to handle the needed pressure. The only way I can think of eliminating it would be to have the block and head be one solid piece, but that would make it nearly impossible to fix any problems in the cylinder.
2007-05-23 13:46:29 · answer #5 · answered by robbob_55 2 · 1⤊ 0⤋
If you actually are a mechanic, you know that the head gasket provides the seal between the cylinder head and the block. As long as your engine has these as separate components you will have to have some sort of seal between them.
2007-05-23 13:39:44 · answer #6 · answered by gunplumber_462 7 · 0⤊ 0⤋
actually, there is the paper gasket (as what we call it here), the metal gasket (as what we call it here). If you wish, u can try using high temp gasket glue (silcone) without a gasket in between. But i still don't understand why you do not want to input a gasket. just curious.
2007-05-23 13:56:35 · answer #7 · answered by James 3 · 0⤊ 0⤋
I dont think you would want to eliminate the head gasket , unless you wanted all of the oil to leak out of the engine.
2007-05-23 13:34:54 · answer #8 · answered by Anonymous · 0⤊ 1⤋
You could scrape the two surfaces until you have a perfect flat surface on each to join up or as in some small engines you could have the head and cylinder cast and machined in one piece with bottom entry of the pistons .~~
2007-05-23 13:42:14 · answer #9 · answered by burning brightly 7 · 0⤊ 0⤋
its basically the gasket between the head and block. without it the head would not be able to hold coolant and compression would suffer.
many heads now a days are aluminum and the blocks are iron. both react differently to heat and pressure which means that one will expand more and the other less. without the headgasket "buffer" between them they would never fit perfectly together.
2007-05-23 13:39:53 · answer #10 · answered by b_rent2003 3 · 0⤊ 0⤋