Stihl 028 noob questions.

[Adamam]

young, disinterested minx with an attitude.

 

I would see this band.

 

[Megatron]

Any particular reason? I initially thought it sounded a good idea. Wished I'd thought of it.

 

It is difficult enough to be accurate without the measuring device being flexible. Even more so if the piston is domed. Also attempting to shear off a WD40 straw is definately not a good idea, imo. Unless the exhaust port has next to no bevel, I doubt it would be that easy. If it did shear it would just as likely get wedged in the cylinder and have to use a piece of wire etc to retrieve.

 

At best any of the methods mentioned in this thread (including my own) would likely only be accurate to +or- 1mm. Which as you can see for diameters only 2mm apart is a problem... The only time I would use the cocktail stick etc is if I knew the possibilites were far enough apart to distinguish.

 

If it is important to know the bore size, imo, forsake the base gasket and remove the cylinder. I would imagine a saw that old could do with having the carbon removed anyway.

[pleasant]

I agree. I only use the coffee stirrer trick when the variances in mm are obvious- and only on flat pistons naturally.

[GardenKit]

It is difficult enough to be accurate without the measuring device being flexible. Even more so if the piston is domed. Also attempting to shear off a WD40 straw is definately not a good idea, imo. Unless the exhaust port has next to no bevel, I doubt it would be that easy. If it did shear it would just as likely get wedged in the cylinder and have to use a piece of wire etc to retrieve.

 

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Maybe one of those chocolate stick things you have at christmas would be good. Not too flexible and easy to shear off. Recyclable and very tasty:thumbup: