Vintage Minor Register

Now what's up with it? Having had new rocker shafts made by Mike Dowley and having discovered that UR 4313 still had the early type cam timing( I've fitted a 12/12 type from Mike now) the damned thing now burns huge quantities of oil, which it didn't before.....what have I done wrong? Head wasn't di...

Thanks Gents for your very useful input....Ian Grace was nearly right...turned out to be a broken rocker shaft right at the back operating (or not!) no 4 exhaust valve...shaft totally sheared through...Spoke to Mike Dowley who says this is a common problem on these "small cam " engines, an...

Being quite new to the OHC engine, can anyone suggest what's wrong with UR4313? It was running well, then suddenly , luckily 400yards from my house, it suddenly lost all power, would only idle but not rev or pull and constantly spits back badly through the carb, unburnt petrol vapour being ejected, ...