Ferret erratic knocking from left hand side front.

[Richard Farrant]

Hi Malcolm,
I was pretty sure it would be a tracta. The problem is when topping up the oil, people often think that when the oil globs out of the hole as soon as they start filling, that it is up to level, whereas it is air pushing the oil back out of the horizontal level tube. The trick is to use a hand pump of low volume output with a small pipe that can be inserted right up the tube and thus letting air out as you fill, this is useful on other top up points as well. I have a converted grease pump which have been using for 20 years on many type of vehicles without issues.

regards, Richard