Re: 1930 Elto Senior Speedster Water Pump Impeller Home › Forum › Ask A Member › 1930 Elto Senior Speedster Water Pump Impeller › Re: 1930 Elto Senior Speedster Water Pump Impeller pm-t2Canada Member - 2 YearsReplies: 516Topics: 44 May 22, 2018 at 3:01 pm #76562 might have been Mercury, they were using them pre-war. Not sure when the wobbler type of water pump went into use. I’m not too well schooled on that sort of thing. PM T2