7664292 Guascor biogas spark plug (Siemens S7664761)
This biogas spark plug is specially designed for the Guascor SFGLD biogas engines, but also can be used in the Guascor SFGM series. New part number Siemens S 76.64.761
Spark Plugs Replacement Guide
| 1200rpm | 1500rpm | 1800rpm | |||||
| REF | HOURS | REFERENCE DOCUMENT | HOURS | REFERENCE DOCUMENT | HOURS | REFERENCE DOCUMENT | |
| FG/ FGLD natural gas | 76.64.291 | 1250 | IO-G-M-00-073 | 1000 | IO-G-M-00-074 | ||
| 76.64.375 | 5000 | 4000 | |||||
| FG/ FGLD biogas (*) | 76.64.292 | 1250 | IO-G-M-00-073 | 1000 | IO-G-M-00-074 | ||
| 76.64.375 | 5000 | 4000 | |||||
| SFGLD natural gas | 76.64.375 | 4500 | IO-G-M-00-067 | 3750 | IO-G-M-00-065 | 3000 | IO-G-M-00-066 |
| SFGLD natural gas ISLAND | 76.64.375 | 7500 | IO-G-M-00-057 | 6000 | IO-G-M-00-038 | 4500 | IO-G-M-00-058 |
| SFGLD natural gas PRIME | 76.64.292 | 1000 | IO-G-M-00-061 | ||||
| SFGLD natural gas STAND-BY | 76.64.292 | 1000 | IO-G-M-00-019 | ||||
| SFGLD biogas (*) | 76.64.292 | 1250 | IO-G-M-00-067 | 1000 | IO-G-M-00-065 | 1000 | IO-G-M-00-066 |
| 76.64.375 | 4500 | 3750 | 3000 | ||||
| SFGLD natural gas LCR 9,3:1 | 76.64.292 | 1250 | IO-G-M-00-034 | 1000 | IO-G-M-00-024 | 800 | IO-G-M-00-035 |
| 76.64.375 | 5000 | 4000 | 3200 | ||||
| SFGLD natural gas LCR 8:1 | 76.64.292 | 2000 | IO-G-M-00-024 | 1600 | IO-G-M-00-035 | ||
| SFGLD syngas (**) | 76.64.292 | 800 | IO-G-M-00-042 | 700 | IO-G-M-00-003 | 600 | IO-G-M-00-043 |
| 76.64.375 | 4000 | 3500 | 3000 | ||||
| SFGRD natural gas | 76.64.292 | 1000 | IO-G-M-00-062 | ||||
| SFGRD natural gas PRIME | 76.64.292 | 1200 | IO-G-M-00-063 | ||||
| SFGRD natural gas STAND-BY | 76.64.292 | 1000 | IO-G-M-00-064 | ||||
| HGM natural gas | 76.64.604 | 3500 | IO-G-M-00-072 | 3500 | IO-G-M-00-070 | 3500 | IO-G-M-00-071 |
| HGM biogas | 76.64.604 | 3500 | IO-G-M-00-072 | 3500 | IO-G-M-00-070 | 3500 | IO-G-M-00-071 |
| SFGM natural gas | 76.64.685 | 3000 | IO-G-M-00-068 | 3000 | IO-G-M-00-069 | ||
| SFGM natural gas ISLAND | 76.64.685 | 4800 | IO-G-M-00-051 | 4800 | IO-G-M-00-059 | ||
| SFGM biogas | 76.64.685 | 3000 | IO-G-M-00-068 | 3000 | IO-G-M-00-069 | ||
| SFGM propane | 76.64.356 | 3000 | IO-G-M-00-040 | 3000 | IO-G-M-00-041 | ||
| SFE ethanol | 76.64.292 | 4800 | IO-L-M-00-001 | ||||
In case the engine is operating at variable speed always select your spark plugs in reference with the highest speed range.
(*) In case the variation of the LHV of the utilized biogas exeeds 10 per cent it is recommended to used 76.64.292 (S7664761) spark plugs.
(**) In case of very contaminated gas it is recommended to use 76.64.292 (S 76.64.761) spark plugs.
Verified 2019 January
