David, To elaborate a little on what George has written: I think the mounting surface you are referring to is on the back of the front cover on the lower right-hand side, correct? The fuel pump doesn't mount directly to the cover. There is a small casting that mounts to the cover and serves as the mounting boss for the pump. This casting angles the pump away from the block and carries one of the two push rod sections George mentioned. The other rod fits into the hole in the front cover and, as he said, is actuated off an eccentric on the oil pump/distributor drive. That rod acts on the end of the rod in the mounting boss, which in turn acts on the lever in the fuel pump. There is also a thick fiber spacer that fits between the mounting boss and the pump. If you have access to a parts manual, take a look and you'll see what I mean. As far as I know, all 101 and 105 series blocks, at least through to the introduction of SPICA injection, made this same accommodation for a manual pump. Models that came with an electric pump used a block-off plate. I believe the 750 series engines had a different mounting entirely but they were all 1300's.
Good luck with your project. Bob A. Kenosha, WI Giulia Super, 1750 Spider, GT Junior -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of George Beston Sent: Saturday, April 07, 2012 3:24 PM To: [email protected] Subject: [alfa] 1958 Giulietta Project David, in the Euro-style 1750 engine that I'm using in my Spider Jr. there were two rod sections between the fuel pump and an eccentric on the distributor shaft. Have another look at the boss on the 1600 block and see if there is an opening pointing up and forward toward the area of the front cover where the distributor shaft resides. FWIW some Giulias came with electric fuel pumps and may have deleted this feature within the front cover. I'm just speculating on that. Regards, George Beston Spider Jr., Alfetta Berlina -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected] -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
