OS engine, screw type?
06-12-2005, 11:15 PM
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OS engine, screw type?
On all OS engines, the carb is held in place by 2 small screws. What size are those screws??? I have tried a whole box of screws and none fit. Need help pleae.
dc
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06-13-2005, 06:54 AM
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RE: OS engine, screw type?
Dubro sells a package of nice 3.5mm socket head screws that you can cut off to the right length. My LHS has them right on the shelf. I suspect OS uses fractional sizes for their bolts so you can't get 'em at the hardware store like those 2.6 ones they use in the 15LA.
06-13-2005, 07:09 AM
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RE: OS engine, screw type?
ORIGINAL: Kaoma
On all OS engines, the carb is held in place by 2 small screws. What size are those screws??? I have tried a whole box of screws and none fit. Need help pleae.
On all OS engines, the carb is held in place by 2 small screws. What size are those screws??? I have tried a whole box of screws and none fit. Need help pleae.
06-13-2005, 09:41 AM
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RE: OS engine, screw type?
Just remember that OS = Japanese = Metric. This applies to threads and the allen (hex) wrenches you should be using. Using the wrong (SAE) wrenches will quickly result in stripped sockets in the bolt heads when working on the engines.
06-13-2005, 06:36 PM
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RE: OS engine, screw type?
Well as long as we are going into warnings those screws that look like phillips are actually JIS (Japanese industry standard) which is why they round out so easily when a phillips screwdriver is used. The JIS screwdrivers are available in sets if you want.
