Updated Tech Article : Squish Measurement

[webmaster]

Hi All,
Ron asked that I update the Tech Article that he contributed on measuring squish. He has been getting a few "bad solders" which seriously impacts his ability to machine your head properly. Specifically, the addition to the article is...

Read and understand the following before measuring squish

These test solders are my only link into your engine so that I know what needs to be done without actually having the engine in front of me. So, it is very important that you pay close attention to the process and do the solder tests with great care. Your head will be modified using these solders that you have provided me.

As you can see in the example pic below, the solder lays flat across the top of the piston with a small "camel hump" that also lays flat on the piston. The reason for the small hump is to allow you to either pull the ends farther apart or push the ends closer together, to get the ends of the solder to rub on the cylinder wall. The hump of the solder is to lay flat on top of the piston also, this will keep the solder from moving around (you can put a small dab of grease on the hump to help hold it in place).

It is also very important that the hump shape of the solder does not come in contact with the squish band area.

One last note before you go on to the actual Measuring Squish , make sure that the ends of the solder touch the cylinder wall on both sides and that both ends are cut blunt and clean. Again I can not stress enough the importance of the solder tests, send at least 2 to 3 tests, they are easy to do.
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The entire article can be found at..

http://www.gasgasrider.org/html/measuring_squish.html

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Thanks,

jeff

[gasgasman]

Modeler's clay would be even easier. No?