I have a problem with my Brumby. I've had 5 competent mechanics look at the engine and none have been able to resolve the issue.
During summer, if the engine is started from cold the engine will drive for minutes or hours without issues. However, when the engine has reached it's operating temperature and then the engine is turned off and then back on again, say minutes later (as one does when filling petrol etc. ) the engine will start to buck, that is it loses power and restores power every 5-10 seconds.
Fuel lines have been checked, fuel filters changed all to no avail, which makes sense as the car drives normally from cold.
Has anyone experienced such a problem or knows what the problem may be?