Paulcovy
Member
I’ve got a problem with my mechanical pump getting hot when idling in traffic ect .... when this happens the filter is empty and the carb bowls very low more so the offside carb , if I cool the pump by pouring water onto it it will start and run fine.I see vapour lock issues have been done to death so apologies .... my cooling system is clear timing correct and carbs have been rebuilt and tuned ( running a touch rich) I have rebuilt the pump as it took an age to start when left for a few days .... I’ve never had it happen before but I don’t know that last time it was sat in hot traffic ? I’ve removed the pump to make sure I haven’t cocked up anything and all is well.ive ordered some lagging to put over the fuel pipes to the pump but it hasn’t arrived yet.I even tried making a heat shield for the pump but didn’t make any difference .... the pump is very hot to the touch but the pipes don’t seem to be ... has anyone found a solution to keep the pump cool? Many thanks