Hi RAMVA!
I have recently changed the carburettor and manifold on my 1975 1303 from a weber dual progressive to a stock Solex 34PICT-3 and original manifold.
The engine was originally a 1300 (AR engine code) a previous owner rebuilt as a 1600. The Solex has been rebuilt by myself, the manifold is clear of carbon.
I put the manifold on the car with new gaskets on both the cylinder heads and the exhaust, as well as new rubber boots to join the end pipes. I have set the carburettor up as here:
The car runs fine, no problems getting up to speed at all. There is sometimes a slight hesitation on acceleration unless you keep the revs up. I have noticed the engine gets very hot - much hotter than it was before.
Any ideas what the problem could be? Thanks in advance!
-- Howard Rose