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Nice Casting Is it going to be a water cooled block? Have you already sketched out the design or are you scaling up/modifying something else to provide a new engine design? Jo
Hi Shiroth.It's difficult to tell from your photos but are you using the Cope ( top box half ) to cast in?If you were to use the Drag ( bottom box half ) the sump areas would be facing upwards and any gasses generated could escape via the split line. Those sumps could also be " self codding " ( using the pattern inside shape ) to create the semicircular shape rather than an additional core. Using this method can allow the use of a vent wire, from the Cope top, after Strickling to help release gasses.The Black coloured tinge? Are you using " oil " bonded sand?Kind regards, Graham.
I've been founding for over 40 years now, in the beginning virtually every casting was a " waster " in foundry parlance.Your casting effectively becomes a roof, trapping the fume from the core. By using the " Drag " for your casting you can ensure a greater " head " of metal is available to reduce the risk of " shrink " and porosity.Please don't hesitate to ask questions, there's quite a few members here that already have the " T " shirt.Kind regards, Graham.
Looks like an interesting project. It's a good sized I4. I did build a single 1.125 X 1.1 But haven't done a multi cylinder yet. I don't have the equipment to do casting but I find someone else doing it interesting.Art