Tumotope na 7K (REVO)

**stroker_200** · March 17th, 2004 10:29 AM

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** · March 17th, 2004 12:18 PM

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

**kewlryds** · March 17th, 2004 12:29 PM

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** · March 17th, 2004 03:06 PM

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** · March 17th, 2004 03:39 PM

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** · March 17th, 2004 04:01 PM

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** · March 18th, 2004 10:27 AM

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

**stroker_200** · March 18th, 2004 10:38 AM

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

**afrasay** · March 20th, 2004 11:51 AM

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** · March 21st, 2004 07:45 PM

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..

**Ungas** · March 22nd, 2004 02:20 PM

Tope or pre-detonation. There's that distinct ticking sound from inside the engine. You can do it on your own by engaging into higher gears before reaching the amount of engine power needed for that particular gear.

**stroker_200** · March 22nd, 2004 05:56 PM

Afrasay,

Nakakainis na nga eh. Mabagal masyado ang response ng mga casa (toyota ortigas and marikina). So far, mukhang promising yung discussions ko with Toyota North.

Sana nga tope lang. Ang symptom kasi eh tumotope. The 'tik-tik-tik' sound occurs only when accelerating hard, and during uphill.

Kung hindi pa din ma-resolve, after my 10000PMS, then I'll try to discuss your suggestions.

Salamat.

**alex manalo** · March 25th, 2004 09:36 AM

ride ko is revo 7k din

naexperience ko din yang tope, nagpalit lang ako ng gas and then naayos na, go for the high octane (blaze, velocity or gold).

**speedyfix** · March 25th, 2004 09:45 AM

bakit naman ganun kaselan yung revo engine? di naman sya high performance engine?

try adjusting the timing as that may do the trick and allow you to run lower octane fuel which will save you money pa in the long run.

**alex manalo** · March 25th, 2004 10:06 AM

isa pang observation ko nung nagswitch ako sa high octane, aside sa nawala yung "tik-tik-tik" sound (tope sign), mas naging matipid ako sa gas.

nung gamit ko pa e yung lower octane fuel, medyo hirap sa hatak yung ride, with the higher octane hindi ko na kailangan mag-pedal to metal para makuha yung ok na hatak.(personal experience lang po mga peeps)

**stroker_200** · March 26th, 2004 04:24 PM

Update lang po.

Just finished my 10K PMS. Palit na ng plugs, then adjusted my timing (not sure kung anong setting...basta standard daw...hindi ko naman nakita kung nung in-adjust eh). Nabawasan ang tope...mas malakas ang hatak ngayon. Pero may tope pa din, especially kapag alanganin ang gear vs speed.

I'm still using Shell Super unleaded. Will try schedule for a fuel tank drain. I'll see if this will improve/remove the tope.

Thanks to all your suggestions.

Sir Speedy, the 7K engine is very sensitive to fuel impurities, according to Toyota technicians. They told me about the numerous customer complaints that they've raised to Japan. They even sent sample busted sparkplugs to Japan engineers to diagnose the effects of the gasoline variants to the 7K engine. I'm not sure on the exact number of cases they actually reported or send....but I'm hoping they are telling the truth.

**afrasay** · March 27th, 2004 03:01 AM

Pag alanganin ang gear to-tope talag yan. I guess your 7K is the efi type. Yun fx ng brother ko cabureuted type no problem kahit anong fuel ang gamit niya.

**stroker_200** · March 29th, 2004 11:38 AM

Latest Update: The tope problem is almost gone.

I switched to Velocity. Wala na tope when accelerating or going uphill. Pero pag alanganin ang gear, yun may tope. Pero sabi nga ni Afrasay, talagang to-tope pag-alanganin ang gear.

With my A/T REVO, merong times na nagiging alanganin ang gear...like when going uphill along the Ortigas C5 flyover. My re-course is to go Overdrive OFF, para mag-shift to 3rd.

Sa inyong lahat, maraming salamat sa mga inputs. Masaya na ako sa REVO ko. Hindi na alanganin sa pagtakbo. Gas bills na lang ang nagpapakunot ng noo ko....masuwerte na yung 6.5 KM/L.

**alex manalo** · March 29th, 2004 11:53 AM

jn nga tayo talo sa revo mr. stroker, uhaw sa gas ang 1.8 na revo

pero ok na rin kesa naman walang ride hehehe

**stroker_200** · March 29th, 2004 01:00 PM

You're right Alex. Well, nag-a-adjust na ako sa gas expense...tipid na lang sa ibang bagay. At least, masaya naman tayo sa ride natin....di katulad nung iba na bumili ng AUV na hindi masaya.

Pero sulit talaga itong REVO. Ang daming puwedeng pag-gamitan....pang-palengke, pang-grocery, pang-hakot (buhangin, lupa, halaman, bagahe, lipat-bahay, etc. etc), pang-kasal, pang-opisina, pang-harabas, pang-picnic (maski sa loob puwede) at kung anu-ano pa na hindi ka mag-aalangan (compared sa kotse at sa mamahaling SUV). Matibay pa!

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Tumotope na 7K (REVO)

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