| Author | Message | ||
     Mark Glanville Yet to post message Username: mark_gee Post Number: 1 Registered: 02-2025 |
Looking for an exhaust manifold for a 20HP engine. J series (not the later updated fin type) I’m also open to purchasing the complete unit, including the inlet manifold. Does anyone have a spare or are you parting out a 20HP engine? | ||
| Koen Dierckxsens New User Username: prewarrb Post Number: 5 Registered: 04-2024 |
Mark, for 20HP TWO different exhaust manifolds have been made: - early type with curved connection between inlet- and exhaust manifold.(= exhaust manifold E51675) - L-series onwards: later type with flat (plane) connection between inlet- and exhaust manifold. (E53963) Both manifolds started life without any fins. However, in the early thirties (1931-1932?) RR did replace both manifolds (valid for all replacements) by new type exhaust manifolds both with fins : E56819 (early type) and E57550 (late type). As far as I know the early types without fins are just not available. However, https://ristesmotors.co.uk/ is selling both types with fins, but their website does not show correct numbers. Best regards, Koen, | ||
| Mark Glanville New User Username: mark_gee Post Number: 2 Registered: 02-2025 |
Thanks, Koen. I appreciated the detailed explanation, including part #s. I'm seeking the early type with the curved connection. J series. I realise this is needle-in-haystack stuff, but if I don't ask I won't know. PS It would be helpful if Ristes indexed part/photo, just saying  |
