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18hp engine, cooling duct question http://www.international2cvfriends.com/forum/viewtopic.php?f=7&t=6290 |
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Author: | AZL57 [ February 1st, 2020, 7:31 pm ] |
Post subject: | Re: 18hp engine, cooling duct question |
Maybe a carb pre-heating for cold countries? The first 9hp had also some type of pre-heating. See picture a welded version on the manifold and later a bolt on version. |
Author: | AZL57 [ February 2nd, 2020, 12:03 am ] |
Post subject: | Re: 18hp engine, cooling duct question |
425cc (1963-1970) Type A53 - Plaque moteur AZA, AZC, AZM 16ch Din à 4200trs/min - 27Nm à 2500trs/min - Modèles AZ (3/63-2/70) et AZU (1/63-8/67) Quatre vis de chaque côtés du collecteur Tôles de refroidissement des cylindres plates Dynamo sur le vilebrequin (6V) Ventilateur à 6 pâles en acier Grille de ventilation fixée par trois vis (une seule en bas) Ancienne boîte de vitesse Carburateur Solex 28BCI |
Author: | EirikJ [ February 2nd, 2020, 10:21 am ] |
Post subject: | Re: 18hp engine, cooling duct question |
Pre heating from the manifold makes sense I guess. But from the sylinder? I suddenly came to think of those German models with the extra tinware around the top of the cylinder, against the bottom of the cylinder head. Apparently to guide away exhaust fumes from the air blowing into the cabin, in the case of a loose head blowing. Maybe I'm way off, but might this be something similar? I haven't dismantled the cooling ducts, but this tiny opening seems to be some sheet metal mounted to the top of the sylinder, against the head, inside the cooling ducts. Some sort of health and safety thing? |
Author: | AZL57 [ February 4th, 2020, 8:48 pm ] |
Post subject: | Re: 18hp engine, cooling duct question |
Don't think so. I also showed your picture on the french citroen truck site and they think it will be for an pre-heater of the carburettor. In my 1967 2cv parts guide there are 2 pages for parts for -15 degrees heating. But helas without drawings. There was also an auxillary petrol heater available. Could it be for that? https://www.2cv.fi/extra-heating-2cv-heat-exchanger/ |
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