Bullet Proof SRi
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Registered: 11th Jul 05
Location: UK - Clacton on sea - Essex
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Belt driven and some chain driven, whats the reason for this????
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Paul_J
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Registered: 6th Jun 02
Location: London
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cost?
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Bullet Proof SRi
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Registered: 11th Jul 05
Location: UK - Clacton on sea - Essex
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cost?? dont really get that cost would be the reason tbh.
Why is a 1.2 16v corsa c chain driven and the 1.4 belt driven, is there a reason for that or just random decisions by people.
at first i thought it was down to engine sizes, but then i realised that was completely wrong
[Edited on 03-03-2008 by Bullet Proof SRi]
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John
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Registered: 30th Jun 03
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http://www.gates.com/file_save_common.cfm?thispath=Gates%2Fdocuments_module&file=MTZ.pdf
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Bullet Proof SRi
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Registered: 11th Jul 05
Location: UK - Clacton on sea - Essex
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good read that, i get that the belt seems to be a better option for wear and lifetime of the engine.
What i dont get is, why do they choose to put chains on certain engines though, as above, why put the chain on the 1.2 and the belt on the 1.4
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deano87
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Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
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I swear I've heard a chain driven 1.4 - certainly sounded chain driven as well (was a Corsa C).
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Planty02
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Registered: 5th Mar 05
Location: Burslem, Stoke-on-Trent
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quote:
Originally posted by Bullet Proof SRi
good read that, i get that the belt seems to be a better option for wear and lifetime of the engine.
in theory mate...although vauxhall timing chains are crap...mine on my 1.2 16v C lasted 36k before it needed changing 
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Bullet Proof SRi
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Registered: 11th Jul 05
Location: UK - Clacton on sea - Essex
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the corsa c 1.4 hhas a chain on facelift models i think but before then it was a belt.
my old mans ford had a chain whichj lasted till 80k, even then it didnt really have to be changed tbh, he just did it for piece of mind
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Planty02
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Registered: 5th Mar 05
Location: Burslem, Stoke-on-Trent
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As I say mate, vauxhall suck at chains
There was a bad batch on the corsa C's that were weak, some were recalled but sadly mine wasnt so I had to get it done myself 
[Edited on 03-03-2008 by Planty02]
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Bullet Proof SRi
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Registered: 11th Jul 05
Location: UK - Clacton on sea - Essex
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how often i a chain suposed to be changed, or is it when they start to make a noise
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Adam_B
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Registered: 13th Dec 00
Location: Lancashire
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chains are supposed to last longer.
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Planty02
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Registered: 5th Mar 05
Location: Burslem, Stoke-on-Trent
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I think the recommended life on them is 80k but mine started rattling like hell at about 35k because it was stretched too far for the tensioners to tense it
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bubble
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Registered: 24th Jan 04
Location: Darwin, NT Australia.
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quote:
Originally posted by Planty02
I think the recommended life on them is 80k but mine started rattling like hell at about 35k because it was stretched too far for the tensioners to tense it
its normally the oil pressured tensioners get low oil pressure and the chain slackens off
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Adam_B
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Registered: 13th Dec 00
Location: Lancashire
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yeah a belt is like 40k or every 4years i think? or there abouts anyway.
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Planty02
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Registered: 5th Mar 05
Location: Burslem, Stoke-on-Trent
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quote:
Originally posted by bubblevaux
quote:
Originally posted by Planty02
I think the recommended life on them is 80k but mine started rattling like hell at about 35k because it was stretched too far for the tensioners to tense it
its normally the oil pressured tensioners get low oil pressure and the chain slackens off
when the chain was taken off it was really slack mate...soon as the new one went on it was fine with no new oil (I topped the oil up a few weeks before it was changed but it made no difference)
Although its starting to rattle again now because I have an oil leak
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bubble
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Registered: 24th Jan 04
Location: Darwin, NT Australia.
User status: Offline
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quote:
Originally posted by Planty02
quote:
Originally posted by bubblevaux
quote:
Originally posted by Planty02
I think the recommended life on them is 80k but mine started rattling like hell at about 35k because it was stretched too far for the tensioners to tense it
its normally the oil pressured tensioners get low oil pressure and the chain slackens off
when the chain was taken off it was really slack mate...soon as the new one went on it was fine with no new oil (I topped the oil up a few weeks before it was changed but it made no difference)
Although its starting to rattle again now because I have an oil leak
i remember doing the timing chain recalls
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deano87
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Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
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Timing chain on my 12v was a bit noisy at about 65k. Got it changed, no problems.
Although it was noisy, apparently it's highly unlikely to jump.
tbh, if the chain is in good working order, I like the idea of it much more than some rubber composite belt 
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DarkBahamut
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Registered: 4th Jun 06
Location: Cambridge, Cambridgeshire
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quote:
Originally posted by Adam_B
yeah a belt is like 40k or every 4years i think? or there abouts anyway.
For alot of cars it is, but it does vary somewhat depending on the engine. My 1.7 CDTI is 65k or 10 years and is belt driven  .
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Bullet Proof SRi
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Registered: 11th Jul 05
Location: UK - Clacton on sea - Essex
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TBH i think i would prefer a chain and think it would be more reliable overall, IMO, and less maintenence to worry about
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Ellis
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Registered: 11th Sep 07
Location: Aberdeenshire
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'Swings and roundabouts' imo
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Mattb
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Registered: 2nd Feb 03
Location: Under your sisters bed
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Chains were used back in the day, as the technology for belts wasnt really there, the problem back then was the chains were noisy in operation, so when cambelts were good enough to use on engines they were. the main reason was that they were very quiet in operation. However now that technology has advanced that bit further you will find that most manufacturers are going back to chains, mainly due to the fact the service life of a chain is supposed to the infinite (however we all know its not always the case) This reduces the service expence to customers who no longer need to fork out for a new cambelt every X thousand miles, which is a great selling point for a manufacturer.
The reason for the current mix of belts and chains is that many manufacturers base new engines on old designs, which invariable used belts, its only really when they completely redesign a new engine that they use chains.
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