Honda Car Forum


 

Go Back   Honda Car Forum - Accord Parts Civic Tuning Acura Racing > Honda Acura > Honda 2

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 03 Jun 2011, 12:05 pm
Steve Giannoni
Guest
 
Posts: n/a
Default Timing Chain vs. Belt

Why are so many cars going to a timing belt ? ...
Reply With Quote
  #2 (permalink)  
Old 03 Jun 2011, 12:16 pm
jim beam
Guest
 
Posts: n/a
Default Re: Timing Chain vs. Belt

On 06/03/2011 10:05 AM, Steve Giannoni wrote:
> Why are so many cars going to a timing belt ? ...


cT = 1.0


--
nomina rutrum rutrum
Reply With Quote
  #3 (permalink)  
Old 03 Jun 2011, 12:47 pm
Steve Giannoni
Guest
 
Posts: n/a
Default Re: Timing Chain vs. Belt

Please clarify ...

On Fri, 03 Jun 2011 10:16:29 -0700, jim beam <me@privacy.net> wrote:

>On 06/03/2011 10:05 AM, Steve Giannoni wrote:
>> Why are so many cars going to a timing belt ? ...

>
>cT = 1.0

Reply With Quote
  #4 (permalink)  
Old 03 Jun 2011, 02:07 pm
Steve Giannoni
Guest
 
Posts: n/a
Default Re: Timing Chain vs. Belt

Please excuse the duplicate postings as the first took forever to
appear ...

On Fri, 03 Jun 2011 13:05:28 -0400, Steve Giannoni
<casagiannoni@optonline.net> wrote:

>Why are so many cars going to a timing belt ? ...

Reply With Quote
  #5 (permalink)  
Old 03 Jun 2011, 05:01 pm
Tegger
Guest
 
Posts: n/a
Default Re: Timing Chain vs. Belt

Steve Giannoni <casagiannoni@optonline.net> wrote in
news:ss4iu6p7m367hse2o8cofpn6fpu0hsas8u@4ax.com:

> Why are so many cars going to a timing belt ? ...




You've got it backwards. They're returning to chains after a few decades
with belts.


--
Tegger
Reply With Quote
  #6 (permalink)  
Old 03 Jun 2011, 05:49 pm
John M
Guest
 
Posts: n/a
Default Re: Timing Chain vs. Belt

On 6/3/2011 6:01 PM, Tegger wrote:
> Steve Giannoni<casagiannoni@optonline.net> wrote in
> news:ss4iu6p7m367hse2o8cofpn6fpu0hsas8u@4ax.com:
>
>> Why are so many cars going to a timing belt ? ...

>
>
>
> You've got it backwards. They're returning to chains after a few decades
> with belts.
>
>


Seems like belts would be cheaper and easier to install, correct? I'm no
gearhead haha

--- Posted via news://freenews.netfront.net/ - Complaints to news@netfront.net ---
Reply With Quote
  #7 (permalink)  
Old 03 Jun 2011, 08:25 pm
Tegger
Guest
 
Posts: n/a
Default Re: Timing Chain vs. Belt

John M <benson560@gmail.com> wrote in
news:isbodu$2uha$2@adenine.netfront.net:

> On 6/3/2011 6:01 PM, Tegger wrote:
>> Steve Giannoni<casagiannoni@optonline.net> wrote in
>> news:ss4iu6p7m367hse2o8cofpn6fpu0hsas8u@4ax.com:
>>
>>> Why are so many cars going to a timing belt ? ...

>>
>>
>>
>> You've got it backwards. They're returning to chains after a few
>> decades with belts.
>>
>>

>
> Seems like belts would be cheaper and easier to install, correct?





From what I've been told, no. Belts and chains involve similar production
costs.

The change /to/ belts was driven primarily by two factors:
1) the switch from cam-in-block (OHV) to cam-in-head (OHC), and
2) emissions laws.

Japanese automakers tended to use regular link-chains instead of the
inverted-tooth chains common on domestic OHV engines. OHC requires a very
long chain. Long chains stretch more than short ones. A stretched chain
changes valve timing (and sometimes ignition timing), which affects
emissions. Belts do not stretch, so long belts work better in keeping an
engine emissions-compliant than do long regular link-chains.

The switch /away from/ belts is driven primarily by the desire to get away
from the lousy reputation belts have on account of the need to replace them
frequently: owners HATE having to spend big bucks to replace belts, and
hate even more being stranded when a belt breaks.

The new chains used by Honda and other Japanese makers are inverted-tooth
chains. These are far more durable than the old-style chains.



--
Tegger
Reply With Quote
  #8 (permalink)  
Old 04 Jun 2011, 04:33 am
Dave Dodson
Guest
 
Posts: n/a
Default Re: Timing Chain vs. Belt

Tegger <invalid@example.com> wrote in
news:Xns9EF9D9FF255ACtegger@208.90.168.18:

> John M <benson560@gmail.com> wrote in
> news:isbodu$2uha$2@adenine.netfront.net:
>
>> On 6/3/2011 6:01 PM, Tegger wrote:
>>> Steve Giannoni<casagiannoni@optonline.net> wrote in
>>> news:ss4iu6p7m367hse2o8cofpn6fpu0hsas8u@4ax.com:
>>>
>>>> Why are so many cars going to a timing belt ? ...
>>>
>>>
>>>
>>> You've got it backwards. They're returning to chains after a few
>>> decades with belts.
>>>
>>>

>>
>> Seems like belts would be cheaper and easier to install, correct?

>
>
>
>
> From what I've been told, no. Belts and chains involve similar
> production costs.
>
> The change /to/ belts was driven primarily by two factors:
> 1) the switch from cam-in-block (OHV) to cam-in-head (OHC), and
> 2) emissions laws.
>
> Japanese automakers tended to use regular link-chains instead of the
> inverted-tooth chains common on domestic OHV engines. OHC requires a
> very long chain. Long chains stretch more than short ones. A stretched
> chain changes valve timing (and sometimes ignition timing), which
> affects emissions. Belts do not stretch, so long belts work better in
> keeping an engine emissions-compliant than do long regular
> link-chains.
>
> The switch /away from/ belts is driven primarily by the desire to get
> away from the lousy reputation belts have on account of the need to
> replace them frequently: owners HATE having to spend big bucks to
> replace belts, and hate even more being stranded when a belt breaks.
>
> The new chains used by Honda and other Japanese makers are
> inverted-tooth chains. These are far more durable than the old-style
> chains.
>
>
>


I would have thought that gears would be much more efficient, last
longer, replacements would be primarily non-existent. Cost would be a bit
more but the benefits should outweigh the costs.

DaveD
Reply With Quote
  #9 (permalink)  
Old 04 Jun 2011, 07:21 am
Tegger
Guest
 
Posts: n/a
Default Re: Timing Chain vs. Belt

Dave Dodson <dave6985@hotmail.com> wrote in
news:Xns9EFAFDF89DFDaveD@209.112.128.246:


>
> I would have thought that gears would be much more efficient, last
> longer, replacements would be primarily non-existent. Cost would be a
> bit more but the benefits should outweigh the costs.
>




Gears are heavy, noisy, and expensive. In the later years of gear-driven
camshafts, it was common for the gear teeth to be either coated with such
substances as silk, or to be made of nylon. These were attempts at quelling
noise.

It's also just about impossible to control an overhead-cam engine with
gears.



--
Tegger
Reply With Quote
  #10 (permalink)  
Old 04 Jun 2011, 09:24 am
jim beam
Guest
 
Posts: n/a
Default Re: Timing Chain vs. Belt

On 06/04/2011 05:21 AM, Tegger wrote:
> Dave Dodson<dave6985@hotmail.com> wrote in
> news:Xns9EFAFDF89DFDaveD@209.112.128.246:
>
>
>>
>> I would have thought that gears would be much more efficient, last
>> longer, replacements would be primarily non-existent. Cost would be a
>> bit more but the benefits should outweigh the costs.
>>

>
>
>
> Gears are heavy, noisy, and expensive. In the later years of gear-driven
> camshafts, it was common for the gear teeth to be either coated with such
> substances as silk, or to be made of nylon. These were attempts at quelling
> noise.
>
> It's also just about impossible to control an overhead-cam engine with
> gears.


??? no harder than with a chain or belt. think about it.


>
>
>



--
nomina rutrum rutrum
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
does the acura 2006 TL have a timing belt or timing chain? mike g Acura Technical 5 14 Jul 2010 02:16 pm
does the 2010 honda cr-v have a timing belt or a timing chain? william Honda Technical 3 22 Feb 2010 04:31 pm
Honda Accord 2005 VTI-L (2.4, 4 Cylinder). Firstly, does it have a timing chain or a timing belt? }-{ Honda Technical 5 07 Nov 2009 06:01 pm
does a 1998 honda crv have a timing belt or timing chain? i think its a 2.0l four cylinder? brentml22 Honda Technical 3 28 Aug 2007 05:40 am
Does a Honda Accord 2 door coup with a 6 cylinder have a timing belt or a timing chain.? sculptnpaint4u Honda Technical 15 22 Aug 2007 07:03 am


All times are GMT -5. The time now is 08:22 am.


Attribution:
Honda News | Autoblog
Powered by Yahoo Answers




Powered by vBulletin®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
HondaCarForum.com is not affiliated with Honda Motor Company in any way. Honda Motor Company does not sponsor, support, or endorse HondaCarForum.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.