A Big Three Query

[Christian Gañac]

Mga ka tsikot, gusto ko lang mag tanong about dito. Nabasa ko lang rin kasi ito sa ibang site. Ask ko lang if this would help the battery charge well at kung malaki ang benefit nito on the long run? At paano ba ito gawin? I never tinkered at automotive electronics. at balako ko sana gawin muna sa owner namin. Opinions and suggestion are very much welcome! :D

[miko101130]

wala naman po masama sir sa pag add ng additional grounding nang sasakyan...
so additional wires for grounding would be a simple and inexpensive upgrade...

personally i add additional grounding wires and grounding points,
but i only use OEM surplus wires na mabibili sa mga nagtitinda ng engine and wire harness...
its usually black with yellow stripes na sobrang kapal. 0 gauge ata yun. mas maganda if meh kasamang OEM battery clamps... kasi pag oem harness pure copper ang battery clamps...

pag sa mga auto supply manipis/underrated at hindi pure copper kaya malambot at mababa diameter ng strand ng wire, so ma defeat lang purpose.

gauge 0-4 would be ideal...
dagdag ka from battery to chassis, chassis to engine, bolts near the alternator housing to negative clamp.
gamit ka na lang mga copper eyelets para mai-secure.... DIY hehe...

[Christian Gañac]

Salamat sa response sir miko101130. :D

May nabasa ako somewhere sa net at ganito yung installation ng Big Three.
-chassis to engine block
-chassis to battery negative clamp
-alternator positive to battery positive

Correct me if mali ito or kung ano ang tamang pattern. Ito kasi yung nakita ko. Then AWG #4 wire yung gamit. And okay lang ba na kahit magkahiwalay yung both sa chassis na ikakabit? Yung sa owner kasi namin meron na siyang chassis to engine block yung dalawa na lang yung wala at AWG #4 yung ginamit na wire.

[dr. d]

Mga ka tsikot, gusto ko lang mag tanong about dito. Nabasa ko lang rin kasi ito sa ibang site. Ask ko lang if this would help the battery charge well at kung malaki ang benefit nito on the long run? At paano ba ito gawin? I never tinkered at automotive electronics. at balako ko sana gawin muna sa owner namin. Opinions and suggestion are very much welcome! :D

why po? are you experiencing electrical problems?
i subscribe to the juan tamad creed of "if it ain't broke, don't fix it".
heh heh.

[Christian Gañac]

No problem naman. Kung may room pa for improvement na easy to do, why not do it? Di kasi ganun ang mindset ko na kung kailan lang may sira dun i che-check.

[miko101130]

Salamat sa response sir miko101130. :D

May nabasa ako somewhere sa net at ganito yung installation ng Big Three.
-chassis to engine block
-chassis to battery negative clamp
-alternator positive to battery positive

Correct me if mali ito or kung ano ang tamang pattern. Ito kasi yung nakita ko. Then AWG #4 wire yung gamit. And okay lang ba na kahit magkahiwalay yung both sa chassis na ikakabit? Yung sa owner kasi namin meron na siyang chassis to engine block yung dalawa na lang yung wala at AWG #4 yung ginamit na wire.

yung nasa alternator output na positive that goes to your positive clamp, wag mo na baguhin unless naputol o nabalatan...
the alternator positive does not require a very thick wire like those for the starter line...

the only reason kaya ang kapal ng wire na nasa battery poles ay dahil sa starter...
once nag click yung starter solenoid your starter will draw around 200-250 amps!... most alternator only max out at 90 amps.

the largest wire on harness for regular wiring is about gauge 4...

just add ground wire from gauge 0-4 sa batter negative to any part of your chassis, then add from chassis to your engine,
wag kalimutan gumamit ng copper washer o anodized na bolt para hindi ma-corrode later on yung pinagkabitan ng grounding points.

[jhnkvn]

Personally, replace the whole thing if you're already doing it and replace it with 4AWG. Hindi lang naman yan sa matter of kaya or not.. but it's a matter of optimizing the flow of electricity by reducing resistance. Will it cost more? Yes. But chances are if you already done one or two of the procedure, doing everything won't hurt your wallet.

Just remember to make sure everything's connected and installer properly.

[Christian Gañac]

I already got the items needed kaso hindi ko ma determine yung positive line ng alternator ko. Three wires kasi siya then two wires are thinner while the one connected via nuts and bolts are fairly thick. I was thinking of going in a alternator shop para ma check nila and is it okay na wala ng fuse yung sa alternator positive to battery positive connection?

[[archie]]

Yung may goma na cover, yun yung positive.

[miko101130]

I already got the items needed kaso hindi ko ma determine yung positive line ng alternator ko. Three wires kasi siya then two wires are thinner while the one connected via nuts and bolts are fairly thick. I was thinking of going in a alternator shop para ma check nila and is it okay na wala ng fuse yung sa alternator positive to battery positive connection?

yung nakakabit sa likod with a large bolt is the positive one, covered by a red rubber grommet yun..
ito din ang pinaka malaking wire among the three na meron ang alternator.

dapat may fuse sir ang positive line nang alternator going to your main fuse line.

[Christian Gañac]

Eto po ba yung sinasabi ninyong positive ng alternator?

[Chinoi]

Kapag mag install ng Big 3 Grounding Kit ay di na kailangan galawin or mag add ng wire sa +Alternator or +Bat. Ground wire lang idagdag. Kaya nga tinawag na Grounding Wire Kit.

Hwag galawin yun +Alt wires. Ang important malagyan ng Ground Wire ay yun - Alt Terminal na katapat ng +Alt terminal. In between sa kanila yun white connector sa picture mo. Iyan ang best connection ng -ALT kasi kasama iyan sa casing ng Alternator - or gnd side. Linisan mo uli -Alt screw bago lagyan ng Ground Wire.

Hwag maglagay ng Ground Wire sa Bracket ng Alternator. Kung ganyan kadumi sa picture mo ang bracket ay loose connection din iyan. Magkaroon pa rin ng voltage drop. Iyun voltage drop ang iniiwasan kaya naglalagay or dagdag ng Grounding Wire.

WARNING. Tangalin muna +BAT wire kung may galawin na wire sa Alternator. Ang lakas ng Spark diyan kapag may nag short. Tunaw yun wire diyan.

[Christian Gañac]

Kapag mag install ng Big 3 Grounding Kit ay di na kailangan galawin or mag add ng wire sa +Alternator or +Bat. Ground wire lang idagdag. Kaya nga tinawag na Grounding Wire Kit.

Hwag galawin yun +Alt wires. Ang important malagyan ng Ground Wire ay yun - Alt Terminal na katapat ng +Alt terminal. In between sa kanila yun white connector sa picture mo. Iyan ang best connection ng -ALT kasi kasama iyan sa casing ng Alternator - or gnd side. Linisan mo uli -Alt screw bago lagyan ng Ground Wire.

Hwag maglagay ng Ground Wire sa Bracket ng Alternator. Kung ganyan kadumi sa picture mo ang bracket ay loose connection din iyan. Magkaroon pa rin ng voltage drop. Iyun voltage drop ang iniiwasan kaya naglalagay or dagdag ng Grounding Wire.

WARNING. Tangalin muna +BAT wire kung may galawin na wire sa Alternator. Ang lakas ng Spark diyan kapag may nag short. Tunaw yun wire diyan.

So yung encircled sa part sa picture ko is yung alternator positive kasi may rubber insulation ito around the bolt that goes inside the alt case then yung may mark na "R" pwede kong kabitan ng ground wire connected sa battery negative. Tama ba.

[red_one]

sa BIG 3 included ung +ALT to +BAT.

sa 5-POINT, 6-POINT or 7-POINT GROUNDING KITS, puro GROUND points naman ang target.

example of BIG 3..



(1) -BAT to CHASSIS
(2) -BAT to -ALT (Mounting Bolt/Bracket connected to ENGINE BLOCK)
(3) +BAT to +ALT

Alternator Wiring

The ALTERNATOR BODY is both a GROUND and a heat sink. If you place your hand on an alternator bracket, you'll probably notice it feels warmer than other accessory brackets; heat from the diodes flows through the alternator body and into the bracket, which helps to absorb and dissipate the heat like a radiator. In the same way, electrical current from the battery flows through the ENGINE BLOCK into the BRACKET and, thus, into the ALTERNATOR. The positive output wire from the rectifiers connects to the battery's positive terminal, closing the circuit and keeping it charged.

"R" terminal is for the IGNITION switch.

[Christian Gañac]

sa BIG 3 included ung +ALT to +BAT.

sa 5-POINT, 6-POINT or 7-POINT GROUNDING KITS, puro GROUND points naman ang target.

example of BIG 3..



(1) -BAT to CHASSIS
(2) -BAT to -ALT (Mounting Bolt/Bracket connected to ENGINE BLOCK)
(3) +BAT to +ALT

Alternator Wiring

The ALTERNATOR BODY is both a GROUND and a heat sink. If you place your hand on an alternator bracket, you'll probably notice it feels warmer than other accessory brackets; heat from the diodes flows through the alternator body and into the bracket, which helps to absorb and dissipate the heat like a radiator. In the same way, electrical current from the battery flows through the ENGINE BLOCK into the BRACKET and, thus, into the ALTERNATOR. The positive output wire from the rectifiers connects to the battery's positive terminal, closing the circuit and keeping it charged.

"R" terminal is for the IGNITION switch.

So yung encircled sa picture na post ko ay yung alternator positive? yung mag rubber insulation na bilog around the bolt?

[red_one]

So yung encircled sa picture na post ko ay yung alternator positive? yung mag rubber insulation na bilog around the bolt?

it looks like it. i-trace mo na lang kung saan papunta ang wire na yan para sure.

[red_one]

[Christian Gañac]

it looks like it. i-trace mo na lang kung saan papunta ang wire na yan para sure.

Salamat sa info sir red_one. Best way is to let a professional automotive electrician to identify which is which. Siguro have some opinions na rin while im at it. For now, tama na muna yung mga grounding points since i have already cleaned out some of the engine compartment dust and grime. Battery still at 13.something volts and did a test drive and i noticed na medyo naging maganda yung idle at di nag fli flicker yung lights sa gauges ko even with headlights on and stereo.

[Chinoi]

So yung encircled sa part sa picture ko is yung alternator positive kasi may rubber insulation ito around the bolt that goes inside the alt case then yung may mark na "R" pwede kong kabitan ng ground wire connected sa battery negative. Tama ba.

Yun turnilyo na katabi ng R ay palagay ay -ALT Terminal. Yun R ay para sa Connector ng Relay. Linisan mo ng steel brush yun bolt para ma-confirm nga dikit sa bakal or kaha ng Alternator. Yun ang -ALT pagdikit sa kaha. Iyan ang the best Ground connection.

Para sa akin ang Big 3 Grounding connection ay:

1. -Bat and -Alt. For better charging of Battery, better dc voltage for engine electricals and Brighter Headlamp.
2. -Bat to Distributor casing or Cylinder Head. For better Ground connection to drive Ignition Coil. Resulting better spark voltage.
3. -Bat to Starter Mounting Bolt. For 1 click start of Starter. Starting current was very high ampere and needs very good grounding wire connection to avoid voltage drop.

Note: Purpose of Grounding wire was to avoid loose connection or voltage drop.

Do not removed original ground wires. Big 3 Ground was only for add on wire for old electrical of car.