To my knowledge no.
Traffi-Clutches aren't compatible with M28/1 7.9:1 engines.
Now watch everyone correct me
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| traffic clutch http://www.international2cvfriends.com/forum/viewtopic.php?f=7&t=2513 |
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| Author: | J-dub [ December 8th, 2010, 1:08 am ] |
| Post subject: | traffic clutch |
after being reminded about traffic clutches on facebook, i wondered if it is posisble to fit it to a late 2cv engine and disc brake box i drove matt dampers car, and i thought the traffic clutch was the best thing ever, why didnt they fit it on all cars!"!!! is it possible to fit it? matt was saying something about the flywheel and it being different on the later engines? is this possible to over come? or modify to make it work?? thanks |
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| Author: | samfieldhouse [ December 8th, 2010, 2:19 am ] |
| Post subject: | Re: traffic clutch |
To my knowledge no. Traffi-Clutches aren't compatible with M28/1 7.9:1 engines. Now watch everyone correct me
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| Author: | J-dub [ December 8th, 2010, 8:59 am ] |
| Post subject: | Re: traffic clutch |
As much as I hate to say it I hope they do! |
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| Author: | knightley [ December 8th, 2010, 10:34 am ] |
| Post subject: | Re: traffic clutch |
The gearbox input shaft is different. Trafficlutch ones have a thread on them for a retaining nut. The carburettor has a dashpot to damp throttle closing. Looks like the easiest way is to find a complete engine/gearbox and swap. |
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| Author: | samfieldhouse [ December 8th, 2010, 11:09 am ] |
| Post subject: | Re: traffic clutch |
If you found an M4 engine and gearbox from an Ami you could do a swap. Although for the sake of a trafficlutch you'd be throwing away the developments that went into the later 602 engine. |
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| Author: | ken [ December 8th, 2010, 11:46 am ] |
| Post subject: | Re: traffic clutch |
James & Sam, according to 2CVGB's Handbook, with the introduction of the 'Special' in 1979, one of the options available was a centrifugal clutch. I've never seen one of these in RHD, so most of those ordered were LHD, I'd guess... ken |
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| Author: | Tom Duckpower [ December 8th, 2010, 12:08 pm ] |
| Post subject: | Re: traffic clutch |
And they are called 2CV6E. Few months ago there was a Dutch guy selling a complete "E" kit. Maybe in france or germany you can find some cars with this option. |
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| Author: | 2CViking [ December 8th, 2010, 12:20 pm ] |
| Post subject: | Re: traffic clutch |
Tom Duckpower wrote: And they are called 2CV6E. Few months ago there was a Dutch guy selling a complete "E" kit. Maybe in france or germany you can find some cars with this option. Very hard to find for 602 motors but possible. You also need a gear box as the input shaft is prepared for the clutch. Standard 602 disc are not unless you find a Mehari box. Speak with Spanners, his new Ami 8 is fitted with such clutch. |
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| Author: | Terry [ December 8th, 2010, 12:47 pm ] |
| Post subject: | Re: traffic clutch |
HI James ......as the ex-owner of a traffic-clutch Dyane, [this is just my honest opinion] ....but they're cr@p. You change gear [just as an example say.....] from 3rd to 2nd going downhill and the engine drops below 1000rpm and the clutch dis-enganges .....this leaves you free-wheeling. The only way to get the clutch back is to either press the accelerator pedal [and the clutch re-engages at 20/25mph with the engine only doing 1000rpm] OR match the engine speed to your road speed and slip the clutch .....the former will attempt to throw you through the windscreen,the latter means that you're freewheeling for some considerable distance. There was suposed to be a system on the carb which prevented this ......I dunno if it was a case on mine not working correctly ....although I doubt if this was the case ....[the car was only 2 years old when I bought it and 4 years old when I sold it] .....but to make it work properly you'll need to be able to source a carb. The traffic-clutch works by having a large heavy revolving flywheel which revolves independantly of the engine speed [sorta rev the engine and the flywheel keeps spinning] .....this is great for making quick starts,but it has its downsides. Mine always used to catch me out when I was parking the car up ......I'd leave the car in gear [ok,bad habit,I know  ] .....but I'd turn the engine off [with my foot still on the clutch] and attempt to get outa the car ....this inevitably resulted in me taking my foot off the clutch just as I stepping outa the car .....either the car lurches forward and the "B" post smashes you in the back or the door smashes you in the teeth if you've left it in reverse .....Oh  .....and the dents are still in the metal garage door at my old house,even though we moved from there in 1983 ..... .It does'nt end there either ......because if you get a flat battery,you cant bumpstart the car [the clutch is disengaged at below 1000rpm remember] .....no engine speed equals no clutch. This also applies to parking,its no use leaving the car in gear if your handbrake needs adjusting .....prob'ly not so much a problem with the drum braked cars,but I would'nt fancy it with my disc braker ....[I have to adjust the handbrake every 1000miles or so] On the plus side .....the traffic-clutch is great in traffic providing youre only using 1st & 2nd gears .....and being a learner at the time when I had my Dyane4 [1973-1975] .....it was impossible to stall the engine through poor clutch control .....[in fact,I've often wondered what the driving examiner would have made of it if he'd known what it was when I took my test in that car .....would it have been classed as an automatic,thus only allowing me the autobox entitlement on my licence  .....  best regards Terry |
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| Author: | ken [ December 8th, 2010, 9:36 pm ] |
| Post subject: | Re: traffic clutch |
Viking, are you sure about that? Afaik, Dyane disc brake gearboxes, from 1978 onwards, retained the 'short spline' gearboxes until the introduction of the diaphragm clutch in Feb 1982. 2CV disc braked gearboxes had a shorter overlap period, between the introduction of disc brakes in 1981 and the changeover to diaphragm clutch at the same time as Dyanes... 2nd, 3rd and 5th from the viewer in the link below are 'short spline' input shafts, the 2nd one is Dyane type because of that ring engraved on it, but all of those will accept a centrifugal clutch mechanism. ken p.s. for James. I'd recommend that you admire these devices from afar, as the cost of replacing one is guaranteed to make your eyes water... < http://www.flickr.com/photos/30132857@N06/4815265138/ > ken 2CViking wrote: Very hard to find for 602 motors but possible. You also need a gear box as the input shaft is prepared for the clutch. Standard 602 disc are not unless you find a Mehari box. Speak with Spanners, his new Ami 8 is fitted with such clutch. |
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