Tumotope na 7K (REVO)

[stroker_200]

Guys,

Calling all REVO 7K owners. Meron na ba sa inyo na naka-experience ng detonation (or 'tope')? Ano ang ginawa nyo para mawala? Ano ang mga causes?

I have a 6 month old REVO SR 1.8 (7K engine) with an odo reading of 9000+ KMs. Sobrang tumotope! Nakakainis nang i-drive. Since nung 5000Km check up eh puro tope na...hanggang ngayon. Buwisit na rin ako sa kakabalik sa dealership dahil walang sinabi sa akin kundi palitan ko daw ang gas (toyota ortigas at toyota marikina). Pinag-experimentuhan na din ang timing (from 3 to 5 degrees) pero ayoko naman ung response nung retarded timing (ang pangit ng hatak sobra!).

Tumope din ba REVO nyo? Anong ginawa nyo to resolve? Tulong naman peeps.

Thanks in advance.

[sauman]

sinubukan mo na bang gamitan ito ng fuel with high octane rating like velocity or blaze

[kewlryds]

i agree, it just could be bad gasoline or you could be filling up with gasoline below the manufacturer's recommended fuel octane rating

[stroker_200]

I've tried switching back and forth (Super Unleaded to Velocity to Super Unleaded). These were the conflicting instructions of service advisors. Yung iba, they favor super unleaded, yung iba naman velocity.

Bottomline, tumotope pa din.

I have a scheduled 10000KM checkup at Toyota North (malapit sa SM city). BAsed on their analysis and experience, I may need to change my plugs to Bosch Platinum (instead of the Toyota plugs - yung rebadged NGK plugs). Based on their research, Bosch plugs daw tend to be more tolerable on the sensitivities of the 7K engine. They also advised me to switch to Shell SuperUnleaded as they have better results daw compared to other gasoline types and brands. If hindi pa din ma-solve, I may ask them to check the valve clearances...baka wala sa specs. Other than these, wala na rin akong ideas.

Ano pa ba puwede ko patingnan?

Thanks for the inputs.

[stroker_200]

Siyanga pala, hindi pa napapalitan plugs ko since I got the vehicle. Hindi nagpalit ng plugs nung 5000km checkup eh. last week, they visually inspected the plugs, mukha daw hindi sumusunog ng tama.

They confirmed naman na my warranty won't be voided.

[Ungas]

You should take note off each full tank of each octane rating fuel and monitor if there are any changes. Mixing them up on every half tank will not give you accurate results.

HTH

[ese]

sir, ano po ang timing ng Revo? 8 degrees mga ba? thanks...

[stroker_200]

Nilagay sa 5...eto daw yung standard specs.

[afrasay]

Looks like ayaw nilang gawin ang obvious
Imagine papalitan ng:

1. Gasoline- eh kahit unleaded, leaded, blaze, velocity, ek-ek ay tatakbo ng matino yan engine mo.

2.Change sparkplugs - kahit anong sparkplugs basta same ang specs puwede dyan equivalent W16-EX ata yan. BAKA sabihin nila sa iyo BOSCH IRIDIUM ang ikabit mo.

3. Timing - sobra naman siguro retard ang timing niyan para mag tope. 5 to 10 BTDC pede.

4. Valve clearance? di ba hydrolic valve lifter yan so wala adjust adjust ? automatic adjust yan.

My suggestions:

1. Pa drain your fuel tank, baka may water.

If this doesn't work I suggest they overhaul (top overhaul) or change your cylinderhead .


tope kaya? sigurado ka? or katok? hope not. good luck

[revoGSX]

lagi ko nababasa sa mga thread ang 'tope'.. hanggang ngayon hindi ko pa rin maisip kung ano ang tope....

ano po ba ang tope? meron bang sound na kakaiba sa engine? o mahina na pulling power nya? sorry di ko po alam..
thanks..