http://mazdarotaryclub.com/forums/showthread.php?t=69274&page=2
Hi Guys, My build thread above has some pics of the carb i ve taken off my 12A Series 2 engine ( at least im told its a series 2!). I am replacing the Nikki Carb with a Webber 45 Dcoe, and need to purchase a manifold. I ve found a manifold which should be fine but it only has four ports.... my gasket that came off has four ports, my engine appears to have six ports although 2 are blocked and my old manifold has six ports.... :3Confused
So im a bit confused lol! The engine has yet to be started and im aiming to have the webber on prior to starting but don\'t want to purchase a four port manifold only to find that i need a six port one!
Any ideas or steers in the right direction gratefully received!
Cheers
:)
Those "Ports" are in fact holes into the inlet manifold for coolant to heat up the inlet manifold via coolant coming from the block.
You do have a 4 port engine still.
Block off the small holes in the rotor housings with checmical metal and you\'ll be fine.
Regards
Carl
Thanks Carl, Thats exactly what i needed to know. Some one has already blocked up two ports but i wasn\'t sure why and whether it was correct. The engine i have is supposidly a fresh build but without having seen it built i wasn\'t sure if someone has mish mashed some parts together!!
I ll order my four port manifold for my weber :)
Cheers
Aaron