New rings and cylinder wall surfaces are left with some roughness to help the rings wear into perfect contact with the cylinder walls within the first several hundred miles.
Is this TRUE or FALSE
2007-03-31 13:19:42 · 7 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
true.
2007-03-31 13:22:04 · answer #1 · answered by mister ss 7 · 0⤊ 0⤋
This is true. This is called the "running in period" of a new car / engine and dealers recommend driving at moderate speeds without "thrashing" the engine for the first 1000 miles.
2007-03-31 20:23:07 · answer #2 · answered by Anonymous · 1⤊ 0⤋
this is 100 per cent true you need the roughness to set the rings
2007-03-31 22:07:03 · answer #3 · answered by mike c 2 · 0⤊ 0⤋
ince you have asked 5 questions in as many minutes, I got an idea, if you are gonna ask every question on the test you are taking, save us the time and ask them all in the same question, so then everyone can tell you what I am about to.
Try LEARNING the material, you'll be just another piss poor mechanic if you are told everything and dont know jack.
2007-03-31 20:36:25 · answer #4 · answered by Anonymous · 0⤊ 0⤋
yes, this is true. The roughness helps seal the compression and oil rings.
good luck......
2007-03-31 20:43:51 · answer #5 · answered by mailbox1024 7 · 0⤊ 0⤋
It is true. It's called crosshatch.
2007-03-31 20:24:58 · answer #6 · answered by Anonymous · 0⤊ 0⤋
true
2007-03-31 20:22:31 · answer #7 · answered by tweed801 5 · 0⤊ 0⤋