I think he does
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| Author: | james2cv [ January 29th, 2012, 7:09 pm ] |
| Post subject: | Excessive smoke on startup |
I've always had the occasional puff of dusty smokey oily shit on some cold starts, but now its almost like clockwork... First start up of the day and an embarrassing cloud appears. Its more noticeable than its ever been. What is it then? Valve stem seals? Rings? It had new oil last week and its only started since then really? |
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| Author: | Nelsthebass [ January 29th, 2012, 8:13 pm ] |
| Post subject: | Re: Excessive smoke on startup |
My experience has been that new rings tend to cure this - vs seals are fairly robust on a 2CV engine.... |
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| Author: | J-dub [ January 29th, 2012, 8:32 pm ] |
| Post subject: | Re: Excessive smoke on startup |
As said. Oil, As said, rings or pushrods seals. or put up with it. Mine does it occasionally |
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| Author: | Chris 2cv [ January 29th, 2012, 10:48 pm ] |
| Post subject: | Re: Excessive smoke on startup |
Jameswallace wrote: As said. Oil, As said, rings or pushrods seals. or put up with it. Mine does it occasionally You mean valve stem seals???? |
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| Author: | dave 411 [ January 29th, 2012, 10:52 pm ] |
| Post subject: | Re: Excessive smoke on startup |
I think he does
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| Author: | J-dub [ January 29th, 2012, 11:03 pm ] |
| Post subject: | Re: Excessive smoke on startup |
dave 411 wrote: I think he does It's been a lOng day Appologies |
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| Author: | james2cv [ January 29th, 2012, 11:05 pm ] |
| Post subject: | Re: Excessive smoke on startup |
LOL. Cheers anyway I kinda know what it'll be but don't know why the sudden change from it being a seldom occurence to every cold start. |
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| Author: | Luke [ January 29th, 2012, 11:26 pm ] |
| Post subject: | Re: Excessive smoke on startup |
My Dyane does this too. I think I'm not talking too much crap saying that it's pretty common for boxer engines. Gravity lets the oil seep past the rings into the piston which is 'downhill' while the engine's standing overnight, and then gets burnt in a puff of smoke when you first start it. I'm sure Sean was saying a while ago that he reckons it gets more frequent when the rings rotate so all 3 gaps are in line at the bottom of the piston. I wouldn't worry about it, and I suspect it's such a small amount of oil being burnt that it will take quite a while before you notice any change in the oil level. Could of course be valve stem seals as well, as James probably said. 
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| Author: | JamieW [ January 29th, 2012, 11:30 pm ] |
| Post subject: | Re: Excessive smoke on startup |
IMHO If it still starts ok, isn't down on power, using too much oil or smokes while driving I wouldn't worry about it for now. |
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| Author: | samfieldhouse [ January 29th, 2012, 11:50 pm ] |
| Post subject: | Re: Excessive smoke on startup |
James, if it's the piston rings it might just go away. The gaps in the rings are set at 120 degree intervals when you install them. They do however rotate so occasionally, the gaps in the 3 rings will line up allowing oil past. However, just as they moved around to line up, they will then rotate around and not line up meaning the oil can't get through. I vastly improved Hetty's smoking by taking the pistons out, re-aligning the rings and putting them back in! Also, use thick oil. Both cars smoke less on on 20/50 than on 10/40. |
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