tachometer magalaw yung needle

[shulato]

ano ang problem pag yung needle ng tachometer malikot, galaw ng galaw. autogauge ung tachometer ko, ung pinakamura. una nakakabit sa ignition coil tapos sinubukan ko ikabit sa distributor. nung kinabit ko sa distributor medium na ung likot nung nasa ignition coil pa mas malikot. corolla smallbody 2E car ko. thanks. sana may makatulong sa akin.

[mina_nuka]

ano ang problem pag yung needle ng tachometer malikot, galaw ng galaw. autogauge ung tachometer ko, ung pinakamura. una nakakabit sa ignition coil tapos sinubukan ko ikabit sa distributor. nung kinabit ko sa distributor medium na ung likot nung nasa ignition coil pa mas malikot. corolla smallbody 2E car ko. thanks. sana may makatulong sa akin.

try connecting your tach to the B-L ( black wire insulation with light blue tracer) at the igniter. this terminal is used by the A/C amplifier and at the same time your tachometer connection

[t2erns]

bec of electrical noise (interference)

[shulato]

nag try akong lang yan ng resitor, nabawasan ung galaw pero tumaas ung reading. so ung ordinary 800 naging 1200. try ko kabit sa B-L

[shulato]

Pero ung luma ok naman. nagstuck kc kaya ko na pinalitan. hindi magalaw ung luma. pinapalitan ko na ung tacho pero ung pinalit ganun parin magalaw. pano din maayos ung electrical noise?

[shulato]

B-L ( black wire insulation with light blue tracer) at the igniter - ayan ba yung nakakabit sa positive ng ignition coil?

[mina_nuka]

nag try akong lang yan ng resitor, nabawasan ung galaw pero tumaas ung reading. so ung ordinary 800 naging 1200. try ko kabit sa B-L

is your tach lead wire shielded? as mentioned from other posts, there is RFI (radio frequency interference) or EMI (electromagnetic interference) entering the tach lead wire. this will also affect your ignition. two ways that are more likely to eliminate this symptom-install a 20uF or less condenser parallel to the tach, and, shield the tach lead wire or replace with shielded wire. easy experiment on this is to wrap the tach lead wire with aluminum foil and attach and connect the aluminum foil to ground

[shulato]

pinalitan ko na ng shielded wire pero ganun parin. nag subok nako ng diode wala parin. sayang bili ko sa tacho ah.hindi ko na dapat pinalitan ung luma. kaso ung luma nagloloko na nagstuck minsan.