I'll start by saying that I've posted a similar post elsewhere on the wonderful wacky web, but I thought I'd post here to get a US take on this...apologies therefore, if you have already seen this elsewhere...
I'm about to collect a (completely stock) 1600 '75 bay camper with what has been described as having an 'intermittent engine failure'.
The information I have is that it starts idles and runs well...giving no indication of any issues. This I can confirm, having seen the engine start and test driven it. However, on a longer drive - after 10 miles, or so (sometimes as few as 5, sometimes more than 20) - apparently the motor cuts out and refuses to re-start. Then, after leaving it for a quarter of an hour or so, it will start up again and go a bit further. What I don't know(yet) is how it behaves when the motor dies.
My initial thought was that the coil was on its way out...failing as it warms up, then recovering temporarily, if it is left to cool. Additional potential causes that have been suggested so far are: carb-ice & a fuel supply problem - blocked filter, hose or tank exit nozzle...
I would be interested to hear any thoughts on other potential causes of this...fuel related?...mechanical...? or even confirmations of the above theories!
I fully appreciate that I haven't given much in the way of detail of the symptoms...but I would have thought the fact that it behaves perfectly normally for a time would help rule would out many potential culprits...carb adjustment/jetting, air leaks, timing, etc...?
I will have to drive the car home tomorrow evening, which will give me the opportunity to gather some more data. At this point, I plan to do the following before I drive it home:
- Swap the coil for one I know is good
- Fit a new fuel filter (and potentially replace all the fuel lines for new, if I can find enough pipe in my parts store - not sure how feasible this would be though, on the side of the road!!)
- Fit an anti carb-ice sleeve
Cheers in advance for any suggestions/observations!
PS, If you are wondering why I'm buying a bus with an 'iffy' motor...its almost rust free, which us rare in the UK, with our internationally famous hot & sunny climate...!