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Verified Tsikot Member
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July 12th, 2009 06:24 PM #1Guys,
I have a Sentra B13 93' Model Ex Saloon 1.4L Carb. Although Fast and the Furious lumamig yung aircon ko (as in kahit bilad sa araw pag ON mo ng A/C bibilang ka lang ng mga 30secs malamig na) may problem sya...
Heres my problem.... pag nag auto ON yung compressor humihina yung hatak ng engine tapos bumibigat yung tapak ko sa clutch pero pag nag auto OFF na sya bumabalik na yung hatak power nya and parang may whirring sound akong narrinig pag nag auto ON yung compressor.
napalitan na yung bearing nito (although di ko alam ilan ang bearing ng A/C natin) and napalinis ko na din yung A/C ko per ganun pa din eh.
basta asar na asar ako pag nag auto ON yung A/C nawawalan ng hatak. grrr...
help po kung ano problem. thanks.
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July 17th, 2009 01:55 AM #2
I think it's normal (especially sa carb-feds) na humihina ang hatak ng makina whenever the AC is turned ON. Try observing your RPM, it drops down pag naka-engage ang AC (allowable pa ang 100-200rpm drop).
Pero pag sobrang lakas ang pagbaba ng rpm, like from 1000rpm ay babagasak sa 700rpm, baka kailangan na ng adjustments or tune-up. Alam na ng mekaniko mo ang gagawin dyan.
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Verified Tsikot Member
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July 19th, 2009 11:29 AM #3Ah ganun po pala talaga. kala ko kotse ko lang ang ganun. pero kainis lang kasi nawawalan ng power. siguro dahil sa laki ng compressor ng nissan.
Actually baliktad yung akin eh. pag kick in ng compressor tataas yung menor nya and pag nag off bumabababa.
ano po ba ang tama?
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July 19th, 2009 11:59 AM #4
usually idle
RPM off a/c 600rpm
RPM on a/c 900rpm
kaya halos dimo naman ramdam na humihina ang power pag on ang a/c kasi automatic mag rev up to compensate sa additional load, medyo additional sa fuel lang ng. try mo pa check ang
pressure ng compressor baka sobra taas
or baka naman sira na ang bearing ng compressor mo,(maingay na ba?)
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July 19th, 2009 12:54 PM #5
padagdagan nyo po ng langis yung compressor(compressor oil)
ganyan po ginagawa ko kapag bumibigat na yung compressor ng b13 ko
try nyo baka gumana din sa inyo
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July 19th, 2009 01:48 PM #6
Tama lang yung tataas ang RPM pag nag-engage na ang compressor (a/c is ON) tapos bababa pag OFF. This is to compensate for the additional load of the engine. Nothing to worry.
Pag uphill ang daan (like in Baguio or Dalton Pass ... that's in region 2) it is wise to turn OFF the a/c. Bukod sa malamig kasi ang lugar ay hindi pa hirap ang engine.
IMHO, too much oil in the compressor will cause your system to cool sluggishly or in a worst scenario, may cause the system to blow up (it happens). Less oil will cause it to stuck up. Basta OK sa iyo ang lamig e no problem.
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Verified Tsikot Member
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July 19th, 2009 07:53 PM #7Ok naman ang lamig sa akin. its super lamig nga eh hehe.
Yung bearing how much po yun? and yung compressor oil how much din? Need ba iparecharge ng freon yun pag nilagyan ng new bearing and compressor oil?
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Verified Tsikot Member
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July 19th, 2009 08:56 PM #8
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July 20th, 2009 10:47 AM #9
ok naman ang aircon mo so just focus on the engine. first thing to do is get a tune-up & check your timing done. make sure to replce the spark plugs during tune-up.
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July 26th, 2009 06:52 PM #10
ipasilip mo muna , maaari shaft nga compressor mo slight tabingi or other bearing sa mga pulleys
Kung ako.. Age: 2017 = 7 years old = 70k kms Typical PMS schedule: 1 year = 10k kms Ergo 100k...
Ford Everest 2015