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Location:
Adelaide
Registered:
January 2004
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idle revs for a sprinter
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Tue, 27 January 2004 16:12
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just wondering what the average idle revs for a sprinter with a 4ac is cos mine was playing up a bit today and i fixed it but not sure if the revs are still abnormal, currently sitting at 1.5 at idle
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Location:
Melbourne
Registered:
June 2003
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Re: idle revs for a sprinter
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Tue, 27 January 2004 16:52
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dont quote me on it but i assume it should be about 800 to 900 rpm?
would anyone know what the timing should be on this engine?
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Location:
Brisvegas
Registered:
June 2003
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Re: idle revs for a sprinter
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Wed, 28 January 2004 02:10
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mine sits on 800rpm 
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Location:
NSW, East Coast
Registered:
July 2003
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Re: idle revs for a sprinter
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Wed, 28 January 2004 02:12
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| TA22 wrote on Wed, 28 January 2004 03:52 |
dont quote me on it but i assume it should be about 800 to 900 rpm?
would anyone know what the timing should be on this engine?
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That idle seems about right. Timing should be @900rpm max 13 deg btdc.
What seems to be the drama.
Steve
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Location:
Adelaide
Registered:
January 2004
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Re: idle revs for a sprinter
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Wed, 28 January 2004 02:38
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800  bugga mines sits at 1300 till i give it a little throttle and it goes down to 1000-1100 :/ i know its only 200rpm or so over its still peace of mind i'm after  ne ideas?
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Location:
Gawler, SA
Registered:
August 2003
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Re: idle revs for a sprinter
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Wed, 28 January 2004 06:27
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When you first turn the car on its about about 800rpm on mine but once it warms up it sits around 600rpm. When the aircon is on though sometimes it makes it idle rough until you rev it and it goes back to idling normally again.
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Location:
Sydney (Campbelltown...!)
Registered:
December 2003
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Re: idle revs for a sprinter
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Wed, 28 January 2004 07:22
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when i was tuning my 4AC i went on auto-tech encyclopedia and it had
spark plug gap 0.8mm
timing 3-7(deg) @ 900rpm
points gap 040-0.50
dwell angle 50-54
idle speed man 750 auto 800
valve clearance (hot not running) In 0.20mm Ex 0.30mm
i set mine up to that but advanced the timing a lil till it pinged then backed it off slightly cant remember wat it is but and it runs sweet as...
theres a sequence but
1 point gap
2 timing
3 idle mixture
4 idle speed
set it up in that sequence n u should be ok
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Location:
Adelaide
Registered:
January 2004
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Re: idle revs for a sprinter
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Wed, 28 January 2004 13:47
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thanx for the input fellas i'll give it a go.
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Location:
Melbourne
Registered:
June 2003
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Re: idle revs for a sprinter
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Wed, 28 January 2004 14:52
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i reckon if ur cars running a bit high it might be ur return spring on the throttle, u should give it a look as i had that problem with mine.
My girlfriends got the 4a engine and ive adjusted the timing accurately, it does not ping, and its not too retarted, and when she switches the car off, it keeps running for a sec and makes a screech noise like a belt is slipping. any ideas?
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Location:
Melbourne
Registered:
June 2003
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Re: idle revs for a sprinter
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Wed, 28 January 2004 14:55
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hey Flogbag, whats that auto-tech encyclopaedia?
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