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CRV Timing belt
Honda/Acura Vehicles Discussion group for Honda/Acura vehicles. (alt.autos.honda)
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#11
 
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Re: CRV timing belt -
10-21-2009
, 07:22 PM
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"tww1491" <twaugh5 (AT) cox (DOT) net> wrote in news:zBrDm.517$OY2.109 (AT) newsfe22 (DOT) iad: Is it a duplex or single row chain. That can affect life. It's a silent chain, not a single or duplex. Goes to prove I have not been keeping up with changes in automotive tech. |
an improvement over what used to be. I can still see the duplex chain
system on the 64 Jag XKE I had years ago.
Quote:
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http://www.google.com/#hl=en&source=hp&q=silent+chain&btnG=Google+Search &aq=f&oq=silent+chain&fp=92ba666181073553 -- Tegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
#12
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"Tegger" <invalid (AT) invalid (DOT) inv> wrote in message news:Xns9CAAC6B33E6A8tegger (AT) 208 (DOT) 90.168.18... "tww1491" <twaugh5 (AT) cox (DOT) net> wrote in news:zBrDm.517$OY2.109 (AT) newsfe22 (DOT) iad: Is it a duplex or single row chain. That can affect life. It's a silent chain, not a single or duplex. Goes to prove I have not been keeping up with changes in automotive tech. Had to Google silent chain to find our what it is. |
I did provide a Google link for that.
Quote:
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Certainly, seems to be an improvement over what used to be. |
It's a /considerable/ improvement. And combined with the new style of
tensioner system, means that chains are the wave of the future. And believe
it or not, chains are cheaper for automakers to produce.
The original problem with chains was the fact that they wore a lot over
time. Wear meant that they "stretched", which in turn retarded valve
timing, throwing emissions, mileage, and power off from what they should
have been.
Belts were better for all the above, but their downfall was the need for
relatively frequent replacement. Hence the current move back to chains, but
with new chain technology. Silent chains (AKA inverted-tooth chains) wear
at a fraction of the rate that the old beefed-up bicycle chains did.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#13
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"tww1491" <twaugh5 (AT) cox (DOT) net> wrote in news:wGMDm.80$EU5.36 (AT) newsfe05 (DOT) iad: "Tegger" <invalid (AT) invalid (DOT) inv> wrote in message news:Xns9CAAC6B33E6A8tegger (AT) 208 (DOT) 90.168.18... "tww1491" <twaugh5 (AT) cox (DOT) net> wrote in news:zBrDm.517$OY2.109 (AT) newsfe22 (DOT) iad: Is it a duplex or single row chain. That can affect life. It's a silent chain, not a single or duplex. Goes to prove I have not been keeping up with changes in automotive tech. Had to Google silent chain to find our what it is. I did provide a Google link for that. Certainly, seems to be an improvement over what used to be. It's a /considerable/ improvement. And combined with the new style of tensioner system, means that chains are the wave of the future. And believe it or not, chains are cheaper for automakers to produce. The original problem with chains was the fact that they wore a lot over time. Wear meant that they "stretched", which in turn retarded valve timing, throwing emissions, mileage, and power off from what they should have been. Belts were better for all the above, but their downfall was the need for relatively frequent replacement. Hence the current move back to chains, but with new chain technology. Silent chains (AKA inverted-tooth chains) wear at a fraction of the rate that the old beefed-up bicycle chains did. -- Tegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
scan of a page from Rankin Kennedy C.E. (1912). The Book of the Motor Car.
Caxton.
It took automakers almost a hundred years to make use of this type of chain?
Bizzare....
I am glad that honda put a silent chain in my CRV. It means many years of
driving without having to crack open the timing chain cover to do some work.
#14
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"Tegger" <invalid (AT) invalid (DOT) inv> wrote in message news:Xns9CABCCEAA520tegger (AT) 208 (DOT) 90.168.18... "tww1491" <twaugh5 (AT) cox (DOT) net> wrote in news:wGMDm.80$EU5.36 (AT) newsfe05 (DOT) iad: "Tegger" <invalid (AT) invalid (DOT) inv> wrote in message news:Xns9CAAC6B33E6A8tegger (AT) 208 (DOT) 90.168.18... "tww1491" <twaugh5 (AT) cox (DOT) net> wrote in news:zBrDm.517$OY2.109 (AT) newsfe22 (DOT) iad: Is it a duplex or single row chain. That can affect life. It's a silent chain, not a single or duplex. Goes to prove I have not been keeping up with changes in automotive tech. Had to Google silent chain to find our what it is. I did provide a Google link for that. Certainly, seems to be an improvement over what used to be. It's a /considerable/ improvement. And combined with the new style of tensioner system, means that chains are the wave of the future. And believe it or not, chains are cheaper for automakers to produce. The original problem with chains was the fact that they wore a lot over time. Wear meant that they "stretched", which in turn retarded valve timing, throwing emissions, mileage, and power off from what they should have been. Belts were better for all the above, but their downfall was the need for relatively frequent replacement. Hence the current move back to chains, but with new chain technology. Silent chains (AKA inverted-tooth chains) wear at a fraction of the rate that the old beefed-up bicycle chains did. -- Tegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ Apparently the technology is not that new, one of the results in google is a scan of a page from Rankin Kennedy C.E. (1912). The Book of the Motor Car. Caxton. It took automakers almost a hundred years to make use of this type of chain? Bizzare.... I am glad that honda put a silent chain in my CRV. It means many years of driving without having to crack open the timing chain cover to do some work. |
Good reference here:
"Today's Silent Chains are actually an update of a 19th-century design."
http://chain-guide.com/applications/1-6-3-inverted-tooth-chain.html
#15
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"Tegger" <invalid (AT) invalid (DOT) inv> wrote in message news:Xns9CABCCEAA520tegger (AT) 208 (DOT) 90.168.18... |
Quote:
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with new chain technology. Silent chains (AKA inverted-tooth chains) wear at a fraction of the rate that the old beefed-up bicycle chains did. Apparently the technology is not that new, one of the results in google is a scan of a page from Rankin Kennedy C.E. (1912). The Book of the Motor Car. Caxton. It took automakers almost a hundred years to make use of this type of chain? Bizzare.... |
I'll bet silent chains were either very expensive or had other issues which
made it unsuitable for automotive application. Automakers took advantage of
just about every other mechanical and metallurgical advance from 1912 until
now.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
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