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broken screw -
03-19-2007, 09:07 AM
Does anybody have any suggestions for getting a screw out of my engine?
I thought it a good idea to buy a titanium replacement set of red screws and decided to replace the screws that hold down my cooling head. Well to make a long story short the first screw I tried to put in snapped and left nothing to grip w/ pliers or anything like that??? I don't have a dremel but I am willing to purchase one if that is the only way to get the darn thing out schumacher Topcat Team Associated RC10 C.E. Losi JRX2 |
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03-19-2007, 12:33 PM
I say take the titanium screws out (the 3 good ones) because titanium and aluminum form a bond that is not associated with steel screws in aluminum. Meaning titanium screws should not be used when threaded into aluminum (the block of your motor is aluminum).
So to remedy this situation I would replace the 3 titanium screws with the stock screws and just run it with 3 tightened screws. Leave the broken screw where it lays.
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03-19-2007, 07:41 PM
Ti is junk for screws. They are acutally weaker than steel black oxide screws and Ti is brittle under load. They snap and shear like nothing too.
You can slot the top of the screw and use a very small screw driver to get it out. even if you go into the block a little to slot it won't hurt anyhitng because the engine seal is on the top of the sleve to the head button. If ts way below the top of he block there is nothing you can do but buy a new block. I had to do this to an old engine of mine and it was fine. Ti is very hard and tough to machine so drilling it out won't be an option without a drill press and a nice made jig to hold everyhitng perfect with a serious bit. 1:1.. 01 Z28 Camaro A4 Sure.. its stock. 1:8's.. K3, Inferno GT, and a straight line beater car 1:18.. RC18t Mamba and 3s lipo |
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03-19-2007, 07:54 PM
The reason Ti screws do that is cuz they are too hard they just snap instead of bending etc, the only thing that u will be able to drill titanium with is a carbide drill bit I know my dad has some from work they arent cheap
www.czech-it-out-graphics.com 1/29/07 never forget....TTT ![]() Bringing old know-it-all blow hards back to reallity at a forum near you "Always Imitated, Never Duplicated" |
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03-20-2007, 08:43 AM
Yep, I have a carbide routing bit that i used for fine port work on my TA's intake. That chewed through aluminum like crazy even on a dremel.
I agree with John, you aren't going to be able to really drill out that screw. You'll end up screwing up the block. Either run with 3, or buy a new block. Little Toys: Hyper One Seven | Inferno GT | Jammin X1cr | Jammin CRT Pro | 1989 Batmobile Replica |
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03-20-2007, 01:48 PM
car will not start now...wtf??? new to the hobby but I am guessing that I am not getting compression as fuel seems to come out of the glow plug now... any suggestions about a new engine for the truck???
schumacher Topcat Team Associated RC10 C.E. Losi JRX2 |