2007-03-13 03:38:50 · 5 answers · asked by Anonymous in Cars & Transportation ➔ Other - Cars & Transportation
Question asked & answered.
2007-03-13 03:44:03 · answer #1 · answered by Mr. T 7 · 1⤊ 0⤋
They are there so if the coolant freezes, the expansion of the water will not crack the block. The expansion will force out the plugs instead. This really only happens if you only use 100% water as the coolant or don't mix in enough antifreeze or in extreemely cold conditions. You'll still have to replace the freeze plugs but that's realitively cheap compared to replacing the engine block.
2007-03-13 03:47:25 · answer #2 · answered by Anonymous · 1⤊ 0⤋
They are core plugs the block castings are made in a sand mold and the core plugs enable manufacturers to withdraw the wire cores through the core plug holes.You are right in saying they are useful as a method that if the block froze these should be pushed out by the expanding ice in the block .This unfortunately is not always the case and the block cracks.Thats the reason that modern antifreeze is so important in cars today.MickUK
2007-03-13 03:48:39 · answer #3 · answered by mick 6 · 2⤊ 0⤋
expansion so if your antifreeze is weak add freezes it pops out a plug instead of cracking the block
2007-03-13 03:45:38 · answer #4 · answered by gregs111 6 · 1⤊ 0⤋
Those are factory "kubber plugs". The install them when the build the engine, but probably forgot to remove them. You need to get a couple out to let the engine breath. It will also really, really change the performance of the engine.
2007-03-13 03:47:27 · answer #5 · answered by jc20155 4 · 0⤊ 4⤋