austmoke

Author Topic: Engine cuts out during drive  (Read 94 times)

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Beno

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Engine cuts out during drive
« on: August 01, 2020, 12:50:26 PM »
Ive finally got the Moke up and running and back on the road after full rebuild, however, being able to drive it has revealed a small issue in that I will be driving along and all of a sudden there’s a bit of a surge and the engine cuts out. If I leave it sit for a few minutes she will start up again and go but only for a very short distance before doing the same (usually only enough go to get into second gear).
When it happened yesterday I removed fuel line and blew some air back in towards the tank which allowed me to start her up again and get home.

The following has been done to the engine/car;

- All new full engine rebuild including a brand new original style fuel pump attached to engine.
- Fuel tank originally had a lot of flaked rust and crap in it so I had it professionally cleaned, flushed and re-sealed as part of the rebuild.
- All new fuel lines
- New fuel filter which shows a very small amount of the original crappy rust flakes in it but not enough to even warrant a change of filter

Any thoughts??

Drakman

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Re: Engine cuts out during drive
« Reply #1 on: August 01, 2020, 02:46:11 PM »
Try it with the fuel cap off.

Terry

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Re: Engine cuts out during drive
« Reply #2 on: August 01, 2020, 07:34:54 PM »
Hi,

along the same lines as Drakman, when you stop next, undo the fuel cap or just wiggle it and see if you can hear a little woosh of air.

The symptoms suggest you might have blocked breathers(crushed the pipe when fitting the tank, or you have connected things up wrong, and there is no air able to get in to replace fuel that you have used.

When it does restart, does it crank over for awhwile(enough to draw up the fuel through the pump and into the bowl) before it kicks and starts running?

Terry

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is.


Cujo. 1999 - 2016

Beno

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Re: Engine cuts out during drive
« Reply #3 on: Yesterday at 01:59:43 PM »
Interesting that you both mention the fuel cap as during the second break down I removed the cap to try and blow air back into the tank and that's when she started up again and I was able to drive the few K's to get back home which was a lot bigger distance than what i was getting when I just allowed it to sit for a few minutes and then try again (if that makes sense).

There was no whoosh sound when I took the cap off though but i think i might give it another go to see if that happens.

As for the question about it having to crank over for a while to draw up the fuel through the pump and into the bowl before it kicks and starts running i can't really remember but it is possible. Not happy about the thought of driving her around deliberately waiting to break down but oh well it has to be done and I'll let you know how I go.

Terry

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Re: Engine cuts out during drive
« Reply #4 on: Today at 10:54:10 AM »
Hi,

you have shown you can get it going again so just drive around where you can easily pull over safely. Or just drive around with the fuel cap off and see if it keeps going for you. Or or take the inspection cover plate off and disconnect the breathers at the three way junction and again see if it stops on you.

It is more likely to stop on you if the tank is full(less air) and your are motoring along at speed. If you drop back to idle a lot it gives the air a chance to catch up.

Terry
I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is.


Cujo. 1999 - 2016