Trooper/Big Horn: 4JG2 engine specs

**garyq** · June 26th, 2004 10:10 PM

bore x stroke: 95.4x107
total piston displacement: 3059
compression ratio: 20:1
idling speed: 720 rpm
compression pressure: 30-200 kg/cm2-rpm
* 200 rpm,427 psi. Limit: 313 psi
Firing order: 1-3-4-2
Injection timing: T.D.C
valve clearance: intake: 0.40 (0.016)
exhaust: "same"
Oil capacity: with filter change: 6 liters
without: 5 liters

radiator cap opening pressure: 88.2-117.6 kPa (12.8-17 psi)
Coolant capacity: 8.6 liters
starting syst: output: hitachi 2.8 kW, denso 2.2 kW
clockwise direction (viewed from pinion side)
number of tooth, pinion: 9

Charging syst:
Hitachi: LR150 446, 50A output, rated
LR180-501B, 80 A output, rated

**niwde11** · June 27th, 2004 09:20 PM

pre, you got PM.

**niwde11** · June 30th, 2004 09:12 PM

gary; at what moment ba gumagana yung turbo ng 4jg2? is it speed or rpm dependent?tnx.

**garyq** · July 1st, 2004 12:44 AM

rpm related ang any turbo. Sa atin around 2-2500 rpm nagsisimula ang boost.

**boknoyxtrm2001** · July 1st, 2004 09:48 AM

Lord Garyq

Sir with your indulgence....

RPM readings dapat

720 +/- 30 <----- Cold Idle State

800 +/- 20 <----- Normal Idling

800 +/- 50 <------ W A/C on

**nap123** · July 1st, 2004 10:47 AM

gary sa manual niyan diba? sa automatic kasi 850 rpm idling speed

**niwde11** · July 1st, 2004 11:42 AM

Originally posted by garyq
rpm related ang any turbo. Sa atin around 2-2500 rpm nagsisimula ang boost.

Does that mean na pagkakaandar ng ride ay pwede kagad patayin yung makina(ex; dadaan ako ng malapit banko before going to my destination). Pwedeng di ko na pahinga yung turbo ng around 2 minutes.TIA

**garyq** · July 1st, 2004 12:16 PM

Nap: Oo sa manual yan. Looks like the 720 is from cold idle, kaka-start lang. Bok, thanks for the added info.

edwin: May turbo timer ako and a spare key. Pag malayo yung biyahe, cool down ko 2 minutes. Pag withdraw lang sa ATM and I can see the car di ko na pinapatay. I lock it with my spare key

**niwde11** · July 1st, 2004 02:08 PM

gary, kung medyo magtatagal sa place(e.g.bank), would you recomend na pahinga pa rin ng 2 mins before patayin engine?

**boknoyxtrm2001** · July 1st, 2004 02:23 PM

Nwdie

as long as nagkick in ang turbo mo.. dats the time ipapahinga mo yan pero kung normal driving kanaman wag na..

ang rule
pag gumamit nang turbo ipahinga nang 2 minutes and
pag malapitan wala po..

Pero ang question Lord gary paki sagot po..

ang turbo eh nagaactivate when you reach the desired KPH mo and the RPM

that doesn't mean na pag umabot nang 2K RPM magkikick in ang turbo???

kasi po parang di ganon ang principle ha.. Pero I still might be wrong studying pa ako nang 4Jg2 eh