27/09/2026
“Spark Plug Inspection & Cleaning”
hindi simply “Spark Plug Cleaning.”
Kasi ang tunay na value ng service ay cleaning + inspection + reading ng combustion condition.
So kapag basic PMS, ang objective natin ay:
Clean → Inspect → Measure gap → Assess condition → Reinstall correctly
Hindi lang basta "linisin para malinis." That's the master-tech approach.
Oo, may valid reason kung bakit isinasama ang spark plug cleaning sa basic PMS, lalo na sa gasoline engine. Pero hindi ibig sabihin na lahat ng spark plug ay kailangang linisin sa bawat PMS.
🔧 Bakit useful ang spark plug cleaning?
Para ma-check ang actual condition ng plug
Carbon/fouling
Oil fouling
Excessive gap
Burned/worn electrode
Abnormal deposits
Minsan, hindi sapat ang visual inspection habang nakakabit pa ang plug.
Nakakatulong sa stable ignition
Kapag may carbon deposits sa firing area, maaaring magkaroon ng:
weak/intermittent spark
rough idle
hesitation
misfire under load
increased fuel consumption
Preventive maintenance
Ang PMS ay hindi lang "palit langis." Kasama rin ang inspection at early detection ng potential problems.
Opportunity para makita ang combustion condition
Bilang mechanic, malaking diagnostic clue ang itsura ng spark plug:
Normal: light brown/grayish deposits
Black/sooty: possible rich mixture, weak ignition, short-trip operation
Wet with fuel: possible ignition/fueling issue
Oil-fouled: possible oil-control/engine sealing issue
Very white/overheated: possible lean condition/overheating
⚠️ Pero may importanteng distinction
Spark plug cleaning ≠ spark plug replacement.
Kung worn na ang electrode, malaki na ang gap, cracked ang insulator, damaged ang thread, o contaminated na hindi na properly nalilinis, replacement ang tamang repair, hindi cleaning.
At depende rin sa plug type. Iridium/platinum plugs should not be aggressively wire-brushed, sandblasted, or filed, dahil puwedeng masira ang fine electrode.
