nmhenry Posted October 23, 2022 Share Posted October 23, 2022 Anyone have a good vacuum manifold (the part that bolts to the top of the intake) i=or pictures of how they repaired or built a replacement? Broke one of the ports off it so I drilled it and JB welded a plastic vacuum fitting into it and I don't think it is holding. Link to comment Share on other sites More sharing options...
Barney Eaton Posted October 23, 2022 Share Posted October 23, 2022 It is a common part on the 3800 engine.......there should be a good supply at any Pick n pull salvage yard. Link to comment Share on other sites More sharing options...
2seater Posted October 23, 2022 Share Posted October 23, 2022 I am sure I have posted similar photos but this should illustrate what I do. This item is a common item to be sure but a solid block is far stronger. The attached photo is of the block I made for my S/C engine which has some other ports available so the lines aren’t the same. In this case I used nylatron but I have also made from aluminum. Simply drill holes to be tapped for barbed fittings, 1/8” fnpt is plenty large. The big line to the rear isn’t needed for the Teves cars. Drill two intersecting holes from the bottom to supply vacuum to the holes on the sides. Works best with a drill press but a hand drill works too. The example of the stock is a page from McMaster, .75thick x 1.0”wide. it won’t allow my photo of the catalog page🤨 1 Link to comment Share on other sites More sharing options...
2seater Posted October 24, 2022 Share Posted October 24, 2022 It appears all I needed was to separate the photos🤨 1 Link to comment Share on other sites More sharing options...
Jim Posted October 26, 2022 Share Posted October 26, 2022 I have good uses ones available. 1 Link to comment Share on other sites More sharing options...
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