Blown head gasket on automobiles
2007-01-22 10:31:43 · 8 answers · asked by marselle78 2 in Cars & Transportation ➔ Maintenance & Repairs
The most common is overheating. Another frequent cause is detonation / pre-ignition, which can cause high pressures that blow the gasket.
There are a couple other things that can ruin a head gasket, too. Botching a repair of a previous bad head gasket will do this - it's best to make sure the cylinder head and block deck are not warped, and torque the head gasket down to the correct specifications.
Some other things that can make a particular engine prone to head gasket failure:
- Not enough head bolts, or they don't provide enough clamping force.
- Just plain bad choice of head gasket material (early Neons come to mind).
- Aluminum cylinder head on a cast iron engine block. The two expand at different rates as they heat up, putting wear and tear on the head gasket.
2007-01-22 11:53:17 · answer #1 · answered by Mad Scientist Matt 5 · 0⤊ 0⤋
The block or cylinder head may be not flat and true. If people ever change a head gasket I'd at least take the head to professional race engine builder they can check for flatness and or plane it or deck it to bring it in to absolute flatness. I've maintained for years that a cylinder head is better off with many head bolts not four around each cylinder popular in Ford engines.
2007-01-22 10:41:59 · answer #2 · answered by Country Boy 7 · 0⤊ 0⤋
Head gaskets simply don't last forever, it's that simple. Think about the soft material used to make a "gasket." An overheated engine block will cause the gasket material to degenerate!
2007-01-22 10:36:02 · answer #3 · answered by Blu 3 · 1⤊ 0⤋
The cause varies. The most common things are age, over heating, and un-even heating/cooling.
The last one that i blew was four years ago when my father drove my '81 Datsun 280ZX into a puddle that coverd most of the engine block in water, making it shrink rapidly while the head stayed the same size, thus cracking the gasket.
2007-01-22 10:37:29 · answer #4 · answered by Nathan H 2 · 0⤊ 0⤋
Extream heat and stress couse by pushing you vehical to hard it could be pullin things or goin up a stepp hill with a heavy load or just to much mialiage and trips.
2007-01-22 10:36:14 · answer #5 · answered by Anonymous · 0⤊ 1⤋
1.Lead foot2.Bad gasket.3Engine got to hot.4Over reved engine
2007-01-22 10:35:47 · answer #6 · answered by (A) 7 · 0⤊ 0⤋
it can amount to anything, i think the most common one can be a bad seal, or a loose nut or bolt
2007-01-22 10:39:50 · answer #7 · answered by frank k 1 · 0⤊ 1⤋
over heating
2007-01-22 10:34:49 · answer #8 · answered by Anonymous · 0⤊ 0⤋