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There's a lot of detail regarding carbs that's missing/incorrect. I have written 3 posts that didn't make it, due to my own lack of skill. As a result, Alan, Jacques etc. have covered it.
Except for the prototypes, the 547 and 547/1 engines used "PII" and "PII-4" carbs. These are sand-cast, most made in Italy. The 692/3A and SOME 587/3 used die-cast 44PII-4. The 587/1 used 40PII-4, die-cast. The die cast 4 cam carbs are basicly the same as the S90/SC carbs.
The prototype engines, 547-01 to -07 or -08, used the 2 earlier versions, with cover screws up from under the cover. So far as I know, all 587/2 engines had Weber 46mm carbs.
There's a lot of detail regarding carbs that's missing/incorrect. I have written 3 posts that didn't make it, due to my own lack of skill. As a result, Alan, Jacques etc. have covered it.
Except for the prototypes, the 547 and 547/1 engines used "PII" and "PII-4" carbs. These are sand-cast, most made in Italy. The 692/3A and SOME 587/3 used die-cast 44PII-4. The 587/1 used 40PII-4, die-cast. The die cast 4 cam carbs are basicly the same as the S90/SC carbs.
The prototype engines, 547-01 to -07 or -08, used the 2 earlier versions, with cover screws up from under the cover. So far as I know, all 587/2 engines had Weber 46mm carbs.
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