3-9-5-proverka-zazora-mezhdu-porshnem-i-palcem.html
3.9.5. Backlash check between the piston and a fingerThe finger запрессован in the top head of a rod with a tightness and freely rotates in piston lugs.
The prevention On external diameter fingers are broken into three categories through 0,004 mm. The category is underlined a colour label at a finger end face: a dark blue label – the first category, green – the second, red – the third.
PERFORMANCE ORDER |
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1. Interface of a piston finger and the piston check, inserting a finger preliminary oiled for the engine, into an aperture of a lug of the piston. For correct interface it is necessary, that the piston finger entered into an aperture from simple pressing of a thumb of a hand. |
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2. Check up landing of a piston finger. It should not drop out of a lug if to hold the piston with a piston finger in vertical position. |
3. A finger dropping out of a lug replace with another, the following category. If in the piston a finger of the third category the piston with a finger is replaced. |
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