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16v Cambelt lifespan

 
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john 33_16v
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Joined: 27 May 2005
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PostPosted: Wed Jan 14, 2009 10:41 am    Post subject: 16v Cambelt lifespan Reply with quote

Hi,

What would be the general consensus on the lifespan of 16v belts and pulleys in age?

I'm starting to mentally compile my (long) list of 33 jobs for when it warms up a bit.

John
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bobbber
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Joined: 14 May 2003
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Location: The Greatest Town on Earth - Swadlincote, UK

PostPosted: Wed Jan 14, 2009 1:16 pm    Post subject: Reply with quote

I'd say 36,000 miles or every 3 years (whichever comes first).

However, lifespan can reduce greatly (to around 5 minutes) if contaminated with certain fluids.

Bob
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lee16v
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Joined: 29 Jun 2005
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Location: Devon, UK

PostPosted: Wed Jan 14, 2009 4:39 pm    Post subject: Reply with quote

bobbber wrote:
lifespan can reduce greatly if contaminated with certain fluids.


Yeah, I saw that programme about those Americans who loved their cars too!
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bobbber
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PostPosted: Wed Jan 14, 2009 6:04 pm    Post subject: Reply with quote

Laughing @ Lee,

Remember kids, catching "it" between the cambelt and cog of a running engine is not big, clever, but may be painful.

Bob
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BigAl
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Joined: 06 May 2003
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Location: U.K Surrey

PostPosted: Fri Jan 16, 2009 11:19 am    Post subject: Reply with quote

does anyone know how long after you have fitted new belts and tensioners you should re tighten the belts, that's if you should?
thanks
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aforalfa
Alfasud


Joined: 05 Jun 2007
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Location: under someone elses alfa i expect :roll:

PostPosted: Tue Jun 09, 2009 9:16 pm    Post subject: Reply with quote

My rule on this is retension every 6k and replace every 12k.

The scarceness of spare engines keeps my paranoia alert and active when the 16v is on the road, once saw a 145 1.7 16v drop a belt at 12K after the engine was rebuilt from the last belt loss, i say loss because it just fell off, like the time after Laughing tis the tensioner wheels, the bearings in them are shockingly bad and let the belt sort of lean, until, one day, it just drops off.
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Oggie
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Joined: 06 Mar 2008
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PostPosted: Wed Jun 10, 2009 8:25 pm    Post subject: Reply with quote

the 145 -6 and 147's tensioner's are notoriously pap, I think it's down to these the newer car's service intervals were cut by half.
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tvatavuk
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Joined: 13 Mar 2003
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Location: Split, Croatia

PostPosted: Mon Jun 22, 2009 9:02 pm    Post subject: Reply with quote

Hi,

16v has longer belts compared to 8v engine. And unfortunately they like to lenghten a lot.
Now problem is that AR first said you should retension them after 2-3k km
just to change that notice to never retension them after 33 stop being produced? There was something with retensioning prolonged belt would greatly stress it and would cause premature wear/snap...bla bla.
So I don't retension them but funny thing is that I ended changing them almost every 2 years.

Along with belts you must change bearings and waterpump if you can find quality SKF or better or you migh be ending up like me to change all of that 1 -2 months later Crying or Very sad
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Little black dress which replaced Alfa Romeo 33 S 16v Permanent 4 GMo
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JeremyC
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Joined: 06 Sep 2008
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PostPosted: Tue Jun 23, 2009 8:37 am    Post subject: Reply with quote

"change bearings"

Which bearings?
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john 33_16v
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Joined: 27 May 2005
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PostPosted: Tue Jun 23, 2009 8:58 am    Post subject: Reply with quote

JeremyC wrote:
"change bearings"

Which bearings?


On 16v 2 tensioner wheels/bearings and 2 idler wheels/bearings.

John
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JeremyC
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PostPosted: Tue Jun 23, 2009 9:15 am    Post subject: Reply with quote

Aha, I'd always assumed the wheels came with their bearings.
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john 33_16v
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PostPosted: Tue Jun 23, 2009 12:05 pm    Post subject: Reply with quote

JeremyC wrote:
Aha, I'd always assumed the wheels came with their bearings.


Yep you're right they do. The bearings are in the centre of the plastic wheels.

John
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