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I Supported Toymods
Location:
perth
Registered:
September 2002
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How long can a 4age last?
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Fri, 14 February 2003 12:37
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Ive got the 100kw red top MAP 4age, and im starting to blow smoke above 5000rpm 
Like many of you, for about 2 years i have taken my car to redline about every gear and loved every minute of it. However as the rings (im assuming) are starting to go, i was wondering just how long the engine can last, or what sort of power degredation im looking at.
Should i baby it?
ive got no smoke at startup.
Cheers for any input
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Location:
Brisbane
Registered:
December 2002
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Re: How long can a 4age last?
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Fri, 14 February 2003 12:52
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either take it easy or rebuild it. If you continue to push it to its limits and its already blowing smoke i can assure you it wont be long until you damage something severly. or alternatively buy a new engine.
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Location:
Finland
Registered:
November 2002
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Re: How long can a 4age last?
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Fri, 14 February 2003 13:09
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Check PCV valve first.
Hows the mileage?
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Location:
Finland
Registered:
November 2002
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Re: How long can a 4age last?
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Fri, 14 February 2003 13:10
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And does it eat (much) oil?
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Club Member
Location:
sydney
Registered:
May 2002
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Re: How long can a 4age last?
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Fri, 14 February 2003 19:14
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More commonly it will be the valve stem seals that are on the way out, do a compression check, but generally my engines last about 2 years with plenty of punishment (IF RUN IN PROPERLY) then its time to give them a freshen up
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Location:
Hornsby, N.S.W
Registered:
September 2002
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Re: How long can a 4age last?
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Fri, 14 February 2003 22:54
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my aunties 100kw redtop goes like the clappers, its got 274000 on the clock, regular service and good driving and you can make them last forever.
JUZZO
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I Supported Toymods
Location:
perth
Registered:
September 2002
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Re: How long can a 4age last?
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Sun, 16 February 2003 08:34
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ok thanks.
How much is a compression test?
Im using a little oil, maybe a 1L every 2-3months, but i think its dripping most of , not burning.
done just under 200k, still pulls pretty hard all way to redline.
What i really want to know, is that now its blowing smoke, is it going to get exponentially worse over the next year?
Cheers
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Club Member
Location:
sydney
Registered:
May 2002
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Re: How long can a 4age last?
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Sun, 16 February 2003 21:27
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1L over a couple of months isnt too bad but what oil are you using? if its a synthetic then switch back to organic...something like penrite 30 isnt too bad, the 4A engines tolerances suit a slightly thicker oil and synthetics will tend to "burn off" a lot more
As for compression test I dont know what they cost but you can pick up the tool to do it form about $50 upward, which Im guessing is about what a mechanic would charge anyhow.
Yes the blowing of smoke will get worse if you dont fix it, sounds more and more like a stem seal leak especially if you think the engine is still strong.
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