Head Nitro Engine
Posted on | August 15, 2009 | Comments Off
Head Nitro Engine
How can I remove two tiny screws with torn/riped cross heads?
I have been making a RC nitro car with a kit I have, and am trying to fit a new silencer to the engine. To do so I need to remove two screws from the original silencer to take it off, but the two screws have torn heads, and are in very tight. The screw heads are ony 2-3mm as well. How can I take the screws out? When I say they have torn heads, I dont mean the heads have come off, I mean the crosshead indent has been ripped into a circle due to my other attempts to take it out with a screw driver.
Select a drill the same size of the screw head and carefully drill until the head is removed. When disassembled the remaining part of the screw will protrude enough to can be grasped by pliers and turn out. Or drill a tiny hole in the screw and use a "back out". This requires a great deal expertise for tiny screws.
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How much does it cost to fill up a 75cc petrol tank if 1 gallon costs £18?
This has been doing my head in!
Its for my nitro powered radio controlled car, i just wanted to see how much money i would be putting though the engine when i run it.
1 Imperial gallon = 4.54609188 litres OR 4546.09188 cc/ml
I tried the math, but not sure how to work it out exactly.
K answered good. i think i got another way i found it out:
1800p/ 4546ml = 0.3959p/ml * 75ml 29.6964p
1 gallon (4546 cc) = £18
4546/75 = number of fills per gallon = 60.6
so cost per fill = 18/60.6 = 0.297 or ~ 30 pence per fill.
