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techtalk:ref:engmech04 [2020/03/01 22:46] hippysmack [Sub Documents] |
techtalk:ref:engmech04 [2020/08/08 04:54] hippysmack [Sub Documents] |
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| **Cruise** (low load test): Typical RPM most riding takes place in (2500-3000 RPM). \\ | **Cruise** (low load test): Typical RPM most riding takes place in (2500-3000 RPM). \\ | ||
| - | ===== Testing with a Slack Tube by bustert ===== | + | ===== Testing with a Slack Tube (Manometer) by bustert ===== |
| ==== Sub Documents ==== | ==== Sub Documents ==== | ||
| * [[techtalk:ref:engmech04e|Building Your Own Slack Tube]] | * [[techtalk:ref:engmech04e|Building Your Own Slack Tube]] | ||
| - | * [[techtalk:ref:engmech04f|Using / Diagnosing with a Manometer Slack Tube]] | + | * [[techtalk:ref:genmsr04|Using / Diagnosing with a Slack Tube (Manometer)]] |
| * [[techtalk:ref:engmech04g|Slack tube testing on a 1998 1250S model]] | * [[techtalk:ref:engmech04g|Slack tube testing on a 1998 1250S model]] | ||
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| * Now add a vacuum pump with Z (-1) amount of pull. \\ Now you get X+1=Y-Z... seems the balance (to zero) is restored even though positive pressure is compiled of blowby. \\ But the lower the negative pressure is at the beginning of the downstroke, the lower the next positive pressure will be. | * Now add a vacuum pump with Z (-1) amount of pull. \\ Now you get X+1=Y-Z... seems the balance (to zero) is restored even though positive pressure is compiled of blowby. \\ But the lower the negative pressure is at the beginning of the downstroke, the lower the next positive pressure will be. | ||
| * If you are generating 2 psi of positive pressure on downstroke but reduce it's beginning surge to -1 psi (Z), \\ the result will be only 1 psi of positive pressure during downstroke. \\ -1 (+) + 2 equals +1. | * If you are generating 2 psi of positive pressure on downstroke but reduce it's beginning surge to -1 psi (Z), \\ the result will be only 1 psi of positive pressure during downstroke. \\ -1 (+) + 2 equals +1. | ||
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| + | Another example: | ||
| + | {{:techtalk:ref:engmech:crankcase_pressure_cycle_by_hippysmack.png?direct&400|}} ((drawing by Hippysmack)) \\ | ||
