I'm really not a fan of blanking. Nauso dito ang blanking because its one of the solutions offered for the montero's and stradas na nag uusok.
I believe the EGR helps keep EGTs down also so blanking will increase EGTs. Research more as I've read some horror stories in blanking specially on vgts/vgs. Althougn tolerances may vary from vehicle to vehicle. I'm no mechanic or engineer. Sinasabi ko lang na may mga nabasa ako. Now if its true or not, I don't know pero I'd rather not mess with it. Besides, I've yet to see an Isuzu having premature EGR failure. Our company's 4jj1 Dmax alrady ran 160tkms without pulling out the EGR. Madaming cases ng stuck-up EGR alam ko sa Montero at Strada.
Depende din kasi how clean burning ang isang makina. Kapag mausok, this means its the same gunk that passes thru the exhaust system. Remember when these mix with oil vapors (assuming walang installed OCC), ayun didikit at mamumuo sa EGR.
I'd rather use a clean Euro 4 fuel, and change my oil regularly.
My 5 centaboses.
OCC is oil catch can. What it does is it filters oil vapors going from engine through intercooler hoses and egr. These vapors mixed with exhaust particles, will gum up the exhaust system.'
Okay lang ang color black basta powderish. Ang masama is yung black na sticky. Euro 4 fuels help.![]()
I used the example of a Hilux with a blocked EGR to explain how the hurricane filter affected the engine oil. When using k&n or oem air filter, my oil usually turns black about 2500km after change oil. Nung nag try ako ng hurricane, wala pang 1000km, black na yung langis ko. Yes may increase in engine response but it's as if there is no air filter present. Ang mafifilter lang siguro ng hurricane air filter ay mga langgam at insekto. Pag sinilip mo sya under a lightsource makikita mo yung mga butas. 😹
I'm not sure if the EGTs were raised after EGR blocking wala kasi akong EGT gauge sa hilux. But I felt a slight increase in engine response after blocking it. Sold it at 100k kms, up until today it is working fine sabi ng nakabili sa hilux ko. 😜
Yeah an OCC is a must while blanking is on a case to case and per vehicle necessity.
Mausok kais talaga 4d56 na engine, old school kasi na ginawang CRdi while 4jj1 eh modern na din naman.
There is a tendency of pressure build up inside the valve cover because of the installed occ, if its too small, has the tendency to restric the blow by pressure.. so madalas ako nag papalit ng valve cover gasket and bolt seals. Meron kc tamang operating pressure and vacuum inside the valve cover. So na isip ko bkit nman kc ako mas magaling pa sa mga automotive engineers who spent years studying and designing the engine itself hehe..
Sir Airbus ano gamit mo wax? Pareho kasi tayo blue? Di pa ko nagwax ever :D 1 month na
The pressure buildup is true that's why you have to choose your OCC. Yung Provent 200 mahal siya pero may relieve valves siya in case may pressure buildup. But I agree with Airbus380. Better if you don't mess with it nalang. Siguro naman by the time you need to clean the intercooler, intake manifold and EGR, taon din ang bibilangin![]()