Guest Percy123 Posted March 12, 2012 Share Posted March 12, 2012 (edited) Motor has miss under load, miss comes in at approx 50 mph? but ok at lower speed.Done following;new plugs, Rotor, Distributor cap, Coil, Carby. reset timing.Any help please. Percy123:confused:email kalb.b@bigpond.com Edited March 12, 2012 by Percy123 (see edit history) Link to comment Share on other sites More sharing options...
1939_Buick Posted March 12, 2012 Share Posted March 12, 2012 This may be of interest (copper vs carbon plug wires): -http://forums.aaca.org/f165/1939-248-engine-misses-324129.htmlDoes you car have a Fisher body ? Link to comment Share on other sites More sharing options...
Guest Percy123 Posted March 12, 2012 Share Posted March 12, 2012 Thank you for your info. I have just replaced the fuel pump and now no miss. So must have been starving for fuel under load.Motor 216 Holden Body made at Holden's in Woodville Sth Aust. Number 5 of only 10 made.Percy123. Link to comment Share on other sites More sharing options...
Guest Percy123 Posted March 13, 2012 Share Posted March 13, 2012 Hi all, Found the Fuel Pump valves not working correctly. The fuel pump was reconditioned and had rubber valves, as soon as they were hot the valves didn't work as they should , so I replaced the valves with bakerlite seals in the valves and now working fine. Again, thank you all for your suggestions and help.Percy123 Link to comment Share on other sites More sharing options...
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