SJ413 pulling problem

Anyone able to shed any light on this problem please?

I have a 413 used for light off roading and for carrying logs out of
woods. Every now and again I go on a longer run. When I do she
buzzes along quite happily perhaps for thirty miles or so then
suddenly begins to lose power until chugging to a halt on the hard
shoulder. At that point no amount of cranking will start her.

After ten minutes or so she will start as if nothing were ever amiss
and roar off for another stretch - usually shorter, anywhere between
five and twenty miles this time - until same thing again.

A few weeks ago another 413 joined the family used mainly for very
short runs. I borrowed it for a couple of long journeys whilst the
weather was undependable . . . guess what? Almost exactly the same
thing happened. 40 miles or so then loss of power and eventual halt
on the inside lane! A38 in rush hour - not good! On this one there
seemed to be a longer term effect as if only firing on three pots.
Distinct chug and missed beat for rest of journey, didn't like idle or
low throttle. Today I'm going to investigate further if rain stops.

Tried 'phone a friend' . . . says his does the same and he's never got
to the bottom of it but no longer does long journeys!

Anyone know what this seemingly common problem is?

Ideas so far are bunged up carb sucking in muck which then falls out
again when stationary for long enough - and not much else.

If you've encountered this and have a cure please post as I'd like to
fix it.

Ta, Lurch (PS don't try replying to posting address, it died
long ago.

Lurch posted ...

> If you've encountered this and have a cure please post as I'd like to
> fix it.

Had a similar problem with an old S3 Landrover .. turned out to be the fuel
tank pick-up [1] getting clogged .. along with the fuel cap breather hole
[2] not being a hole ..

Everything worked find and dandy when started and run up while stood, or
plonaking round the woods, just eventually slowed to a crawl and died due to
the fuel starvation on the roads ...

[1] Brand New tank, just hadn't been cleaned out when fitted by previous
owner and full of ****. Once cleaned and pick-up re-routed slightly with
new, clean mesh, it worked fine.

[2] New fuel cap with good seal and working breather cured it completely ..


--
Paul

My 413 trundles from Leeds to Ramsgate fairly regularly, a distance of about
300 miles, and I have experienced this problem once, turned out to be the
fuel filler cap breather hole being blocked.

My Landover had similar problems on a regular basis, that took some tracking
down, till I spoke to the guy at the local diesel specialists, he said "take
out the fuel pickup/sender unit bin the brass filter thingy on the pickup
pipe and refit, it never missed a beat after that.


--
....................... Smurf

www.lwb3.co.uk
[email protected]

When you get to the point where you really understand your computer
It's probably obsolete.

hello it can also be the CARB freezing over. does it only do it in the
summer? or just in the winter? it is more likley to happen on the motorway
or after a long drive with the speed staying the same. during COLD weather.
Check to see if you have got the HOT AIR pipe. come off the exhaurst header
then into the airbox area.

HOpe this helps

james

"Smurf" <[email protected]> wrote in message
news:[email protected]...
> My 413 trundles from Leeds to Ramsgate fairly regularly, a distance of
about
> 300 miles, and I have experienced this problem once, turned out to be the
> fuel filler cap breather hole being blocked.
>
> My Landover had similar problems on a regular basis, that took some
tracking
> down, till I spoke to the guy at the local diesel specialists, he said
"take
> out the fuel pickup/sender unit bin the brass filter thingy on the pickup
> pipe and refit, it never missed a beat after that.
>
>
> --
> ...................... Smurf
>
> www.lwb3.co.uk
> [email protected]
>
> When you get to the point where you really understand your computer
> It's probably obsolete.
>
>

<SNIP>
> "take
> > out the fuel pickup/sender unit bin the brass filter thingy on the pickup
> > pipe and refit, it never missed a beat after that.
> >
> >
> > --
> > ...................... Smurf
> >
> > www.lwb3.co.uk
> > [email protected]
> >
> > When you get to the point where you really understand your computer
> > It's probably obsolete.
> >
> >


Many thanks Guys . . . I binned the NGK plugs it was fitted with this
afternoon and achieved steady, smooth running from cold. Don't know
what experience others have but I've had failures with NGK before, had
a Subaru that ate the recommended plugs every two thousand miles or so
- they'd all fail within a couple of hundred miles either side. The
plugs removed came with the vehicle so don't know age / mileage but
they were obviously not working correctly. One had no discernable
spark under five thousand revs!

Fuel filler cap seems a likely culprit. I took your suggestions and
gave the car a blast down an A road then leapt out and took cap off.
There was an audible whoosh of air. I couldn't even find a breather
in the cap fitted so first job tomorrow is to drill a hole and fit a
one way valve.

Hope I don't have to fiddle with the tank or the insane Aisan carb!
I've heard that the Mutsubishi carbs and the Hyundai Pony ones are a
direct swap, any experience out there as I have a Pony 1600 carb on
the shelf.

Cheers, Lurch

My mates one done this - it was simply a blocked fuel filter (small inline
by the tank) EXACTLY the same symptoms.

MC.

---------




"Lurch" <[email protected]> wrote in message
news:[email protected]...
> Anyone able to shed any light on this problem please?
>
> I have a 413 used for light off roading and for carrying logs out of
> woods. Every now and again I go on a longer run. When I do she
> buzzes along quite happily perhaps for thirty miles or so then
> suddenly begins to lose power until chugging to a halt on the hard
> shoulder. At that point no amount of cranking will start her.
>
> After ten minutes or so she will start as if nothing were ever amiss
> and roar off for another stretch - usually shorter, anywhere between
> five and twenty miles this time - until same thing again.
>
> A few weeks ago another 413 joined the family used mainly for very
> short runs. I borrowed it for a couple of long journeys whilst the
> weather was undependable . . . guess what? Almost exactly the same
> thing happened. 40 miles or so then loss of power and eventual halt
> on the inside lane! A38 in rush hour - not good! On this one there
> seemed to be a longer term effect as if only firing on three pots.
> Distinct chug and missed beat for rest of journey, didn't like idle or
> low throttle. Today I'm going to investigate further if rain stops.
>
> Tried 'phone a friend' . . . says his does the same and he's never got
> to the bottom of it but no longer does long journeys!
>
> Anyone know what this seemingly common problem is?
>
> Ideas so far are bunged up carb sucking in muck which then falls out
> again when stationary for long enough - and not much else.
>
> If you've encountered this and have a cure please post as I'd like to
> fix it.
>
> Ta, Lurch (PS don't try replying to posting address, it died
> long ago.

"Mark C." <[email protected]> wrote in message news:<[email protected]>...
> My mates one done this - it was simply a blocked fuel filter (small inline
> by the tank) EXACTLY the same symptoms.
>
> MC.


Thanks Mark, another idea I'll do anyway I think - sounds a good
probable, strange place to put a filter though!

Ta, Lurch (PS don't try replying to posting address, it died long
ago.)

Lurch wrote:

> Many thanks Guys . . . I binned the NGK plugs it was fitted with this
> afternoon and achieved steady, smooth running from cold. Don't know
> what experience others have but I've had failures with NGK before

My own experience of some 35 years with motorbikes and cars is that NGK
are about the best plugs you can get. If you don't know how old they are
you can't really blame the brand. Suzuki recommend replacing them every
6,000 miles or 6 months...

Mike

>"james holloway" <[email protected]> wrote in message
>news:[email protected]...
> hello it can also be the CARB freezing over. does it only do it in the
> summer? or just in the winter? it is more likley to happen on the motorway
> or after a long drive with the speed staying the same. during COLD
weather.
> Check to see if you have got the HOT AIR pipe. come off the exhaurst
header
> then into the airbox area.
>

I had exactly this problem for about a year, in cold weather, it was worst
when the air was damp. I didn't even know there was supposed to be a
pre-heater until I found a tube in a breakers and said "what's this". He
explained, I fitted it and low and behold my Zuk was fixed!

On 31 Jan 2004 15:49:01 -0800, [email protected] (Lurch) wrote:

->I've heard that the Mutsubishi carbs and the Hyundai Pony ones are a
->direct swap, any experience out there as I have a Pony 1600 carb on
->the shelf.

Fit that, you will need to put a "Y" piece just before the carb as a fuel
return, the Pony will transform the vehicle.

Halfords do a replacement filler cap for a couple of quid for the SJ.

The other problem may be the fuel filter, on the chassis above the O/S/R wheel,
or rust in the tank blocking the pickup.


--
Geoff
www.anoraks.uk.net

>>
>>the Pony will transform the vehicle.
>>

Oh if I could only find one.

I've been trawling the local scrap yards for about a year now on and off,
any chance of you being more specific as to the type of pony I'm looking
for, aprox years etc.

--
....................... Smurf

www.lwb3.co.uk
[email protected]

When you get to the point where you really understand your computer
It's probably obsolete.

Lurch <[email protected]> wrote:
> Anyone able to shed any light on this problem please?
>
> I have a 413 used for light off roading and for carrying logs out of
> woods. Every now and again I go on a longer run. When I do she
> buzzes along quite happily perhaps for thirty miles or so then
> suddenly begins to lose power until chugging to a halt on the hard
> shoulder. At that point no amount of cranking will start her.

In addition to other replies there is a problem with the carbs on
SJ413's.

The original carbs on SJ413's are terrible and can stop working for no
apparent reason. Ditch the original carb and go for an SU conversion (or
similar). A friend did that and immediately noticed better running, much
easier starting, a marked performance increase and a definite increase
in economy.

--
FZS600 - silver/black
GS125 - black/rust
'81 Bobtail - vaguely green (FOR SALE £800)
CAAD7 - black
LTS2 - blue, not black
OE6 + Quotefix

On Mon, 2 Feb 2004 15:14:53 -0000, "Smurf" <[email protected]> wrote:

->>>
->>>the Pony will transform the vehicle.
->>>
->
->Oh if I could only find one.
->
->I've been trawling the local scrap yards for about a year now on and off,
->any chance of you being more specific as to the type of pony I'm looking
->for, aprox years etc.

They are about, Hyaundi (sp?) Pony, make sure you get the studs.

I have one in the shed, may be up for sale in a few weeks.

--
Geoff
www.anoraks.uk.net