23-11-2018, 08:50 AM
Fouling plugs can have various causes; not only oil in the. combustion chamber . Way into the sixties fouling plugs were a phenomenon one could face with temperamental Italian cars driven at loo low revs, leading to bad combustion and carbon deposits on the plugs.. So a not too rich mixture and decent spark would be things to. go for. Sometimes people even fitted / changed. to different plugs; 'hotter' or 'colder' depending on driving style.
As with regard to HC heads: David Dye supplies (new) Ricardo heads and John Barlowe the Whatmough Hewitt heads of his own 'Brand';... Both are of pre war design which would keep you out of scrutineering trouble in VSCC circles. I've got one of each...but need to get the Rosengart running properly on its LC head first...In view of Bil's contribution above methinks I'l go for either of the HC heads and keep a spark plug socket in the boot in case the plugs do foul up; if that is one of the authentic properties of a car with a HC head so be it.
As with regard to HC heads: David Dye supplies (new) Ricardo heads and John Barlowe the Whatmough Hewitt heads of his own 'Brand';... Both are of pre war design which would keep you out of scrutineering trouble in VSCC circles. I've got one of each...but need to get the Rosengart running properly on its LC head first...In view of Bil's contribution above methinks I'l go for either of the HC heads and keep a spark plug socket in the boot in case the plugs do foul up; if that is one of the authentic properties of a car with a HC head so be it.