Valve tappet clearance adjustment

[carlogt]

tsikoteers can you trust mechanics in gas stations to handle valve tappet clearance adjustments? anyone knows where I can get a good service sa diesel engine ko? (alabang makati taguig area). responses are greatly appreciated.

[4JGtootsie]

Know your engine type\model first, ask around or look at the hood for the OEM recommended clearance for exhaust and intake in hot and cold temp. Meron din self adjusting hydraulic tappets na in some cases shim ang adjustments.

[carlogt]

4JAI ENGINE non turbo. 0.4mm clearance. do you know / recommend san pde magpaadjust south area?

[[archie]]

simple lang po tappet, kayang kaya yan ng mechs kaso just to be sure, sa hongly sport magaling po. lapit sa sm sucat. kung straight .04 clearance, kaya mo po diy yan. hehe...

[XTO]

gawin natin sa EB yan joke

sa suking gas station with in-house mech na marunong bumasa ng feeler/thickness gauge or kung may makita kang mga pinagpapagawan ng mga jeepney drivers dun mo na pa-adjust. mga experto sila sa pagbukas-sara ng isuzu diesel, pagdating sa loob pare parehas na lang yan.
importante may susunding 0.40 mm gauge. bigyan mo na lang ng tip.

[4JGtootsie]

gawin natin sa EB yan joke

sa suking gas station with in-house mech na marunong bumasa ng feeler/thickness gauge or kung may makita kang mga pinagpapagawan ng mga jeepney drivers dun mo na pa-adjust. mga experto sila sa pagbukas-sara ng isuzu diesel, pagdating sa loob pare parehas na lang yan.
importante may susunding 0.40 mm gauge. bigyan mo na lang ng tip.

Madali lang yan. 4JA1 hot cold exhaust intake 0.40mm hindi nakakalito.
Magpractice ka na para matuto ka. Short method ang gamitin mo.

[luffin]

up ko lng po ito. nagpaadjust po ako ng valve clearance dahil may "tik" na tunog pag nakastart ang engine. 2000 civic lxi po, pero nandun pa rin ung "tik" na tunog pagkatapos gawin. sabi ng mekaniko antay daw muna ng 1 week, kasi lalapat pa daw un. totoo po ba un o mali adjust? 2nd po hindi niya sinunod ung clearance sa manual na .2mm intake at .25mm exhaust ( sinearch ko lang sa internet) , dahil luma na daw ung sasakyan ko, naging .15mm intake at .16 exhaust. tama po ba ung sinabi ng mekaniko? thanks po in advance

[luffin]

dagdag ko lang po, inikot niya ng clockwise ang crankshaft bago inadjust isa isa ung valve, sa nabasa ko dapat daw counterclockwise ung pag ikot. sabi ng mekanik e pareho lang naman daw un.

[jick.cejoco]

dagdag ko lang po, inikot niya ng clockwise ang crankshaft bago inadjust isa isa ung valve, sa nabasa ko dapat daw counterclockwise ung pag ikot. sabi ng mekanik e pareho lang naman daw un.

In most cases if not all, it does not matter which direction you turn the crankshaft to turn the camshaft. Your cams are eccentrics with a base circle meaning, if the cam follower, in this case you rocker arms or valve bucket lifters are off the cam lobes (flanks and toes) or on the heel or base circle, it gives you the lowest position on the individual cams hence you have the clearance that you adjust. Most engines turn clockwise when viewed from the front except turbines on aircraft, Hondas and acuras and rear mounted bus engines

[luffin]

ahh ok po thanks. dun sa sinabi ng mekanik na 1 week pa daw bago mawala ung tik tik na tunog kasi unti unti daw ang paglapat ng valves, totoo po ba to? tsaka dun sa sinabi nia na hindi na dapat sundin ung clearance sa manual kasi hindi na bago ung sasakyan?

[jick.cejoco]

ahh ok po thanks. dun sa sinabi ng mekanik na 1 week pa daw bago mawala ung tik tik na tunog kasi unti unti daw ang paglapat ng valves, totoo po ba to? tsaka dun sa sinabi nia na hindi na dapat sundin ung clearance sa manual kasi hindi na bago ung sasakyan?

If the cam lobes are worn out, the cam lift and duration (angle of cam rotation from opening to closing) changes and should be replaced. The clearance in the specs should still be followed. If it still makes tappet noise, the cams are either worn out or misadjusted. Or sometimes like on Toyota 22re, 22 rc or 22rte, the tappet adjusting screw end wears out and you thought the clearance was sufficient until the cams rotate. In the latter case, you replace the rocker arm adjusting screw

[luffin]

ang nasa manual po .20mm sa intake at .25mm sa exhaust. ang ginawang adjustment, .15mm sa intake at .16mm sa exhaust. so mali po ung adjustment? hindi ko na po aantayin na maka1 week?

[jick.cejoco]

ang nasa manual po .20mm sa intake at .25mm sa exhaust. ang ginawang adjustment, .15mm sa intake at .16mm sa exhaust. so mali po ung adjustment? hindi ko na po aantayin na maka1 week?

Hayz nakwo! Masusunog ang mga valves mo. Look for a trained and knowledgeable technician and stay away from your mechanic

[luffin]

sinabi ko na na ung nasa manual ang kulit , pag luma daw iba na....
maraming salamat sir jick.

[luffin]

guys napaayos ko na ung valve clearance sa ibang mekanik, halos wala na pong tunog, mahinang mahina na lang, mawawala na daw un pag bumiyahe ng malayo. ang problema po na lost/lose thread (tama ba) ung isang pinagkakabitan ng screw ng valve cover, parang hindi kasing higpit nung iba. magleleak po ba un? anu po pedeng remedyo dun? tia..

[StockEngine]

Lose thread po. Some machine shops have the tools and know how to fix this. They can re-thread or re-tap that to original. In case of severe damage, slightly bigger diameter tap is needed. And the valve cover screw hole has to be machined. Machine shops can do this and tell you where to get the appropriate screw/bolt needed.

[luffin]

sir mahal po ba magparethread? . posible po ba magleak un? kung hindi magleak, iwan ko na lang munang ganun? thanks

[sirkosero]

sir mahal po ba magparethread? . posible po ba magleak un? kung hindi magleak, iwan ko na lang munang ganun? thanks

pwede ka rin gumamit ng helicoil kit. pwede mo na i-diy lang. sa benavidez meron nun

[luffin]

sir mahal ba magpare thread? magleleak po kaya un?. kung hindi magleak, hayaan ko na lang muna? thanks

[StockEngine]

They just need to use a tap and dye set. It shouldn't cost much.

As for leaks I dont know.