effects ng maluwag ang timing belt?

**spyghost** · February 13th, 2009 09:11 AM

Originally Posted by karlo

lancer glxi 94 po auto ko... ung timing belt po na sa gilid lang so d na kailangan buksan makina para makita... dun din sya sa part ng mga fan belt may takip nga lang sya... un ung tinanggal ko para masilip ko.

last week kasi bigla kasing tumataas rev ko pag dating ng 2500 rpm sa 3rd-5th gear kakapalit lang kasi ng mga belt ko last month so ni try ko silipin baka un ung cause ng problem. nung ni observahan ko pag ni re-rev parang mejo maluwag pro d po ako mekaniko kaya d ko sure kung tama lang na ganun. kaya na itanong ko sa inyo kung ano effect nung maluwag baka kasi un ang cause ng problema

may naka experience na po ba sa inyo nito? isa pang hinala ko ay ung clutch.

need ur input mga bosing salamat po! :mrgreen:

allow me to bring up this old thread kasi i've got a similar experience. still lancer, but glx 2000.

tb was changed last week of december 2k8 and just first week of feb 2k9, i had my idle suddenly up at 1100 rpm. i can't bring it down no matter what i do to the carb. actually lapat na ang throttle plate ayaw paring bumaba.

any updates or confirmation about this possible tb skipping issue?

**speedyfix** · February 15th, 2009 12:48 PM

wait, tb indicates an injected engine but then you mention the carb. which is it?

**pierced** · February 15th, 2009 09:59 PM

i've already experienced a loose tb and it was disaster! 3 valves baluktot! tumukod! malaking gastos! top overhaul na deretso

**pierced** · February 15th, 2009 10:00 PM

i've already experienced a loose tb and it was disaster! 3 valves baluktot! tumukod! malaking gastos! top overhaul na deretso

**oj88** · February 16th, 2009 12:31 AM

Originally Posted by speedyfix

wait, tb indicates an injected engine but then you mention the carb. which is it?

Fuel-injected or not, you need the timing belt to turn the valve cam, since wala naman tayong push rod.

I would guess that he has a carbureted variant of the 4G15 (SOHC).

**spyghost** · February 16th, 2009 09:49 AM

Originally Posted by speedyfix

wait, tb indicates an injected engine but then you mention the carb. which is it?

tb - timing belt... sorry if wrong shortcut

**spyghost** · February 16th, 2009 09:50 AM

yup, this is what i got carb 4g15 sohc

**oj88** · February 16th, 2009 03:56 PM

Originally Posted by spyghost

allow me to bring up this old thread kasi i've got a similar experience. still lancer, but glx 2000.

tb was changed last week of december 2k8 and just first week of feb 2k9, i had my idle suddenly up at 1100 rpm. i can't bring it down no matter what i do to the carb. actually lapat na ang throttle plate ayaw paring bumaba.

any updates or confirmation about this possible tb skipping issue?

Air is definitely getting in somehow and bypassing the throttle valve. You may have a vacuum leak, whether on the carb, the carb gaskets, butterfly shafts or the vacuum line.

**bambino** · February 17th, 2009 05:55 AM

to test a possible intake vacuum leaks ,use a SMOKE TESTER the best tester available , and it's very accurate it only take the tech less than 5 minutes to do a test , no guessing , it will be able to pinpoint where exactly the leak is if there is any.