Decided it was time to fit the new glow plugs in my Peugeot 306D this
morning, unfortunately the 4th one refused to budge and since patience
eluded me I've rounded the nut off it. (I think it was because the
engine had cooled down by the time I got to that one )

Anyway, is there an hope of getting this one out or will the car start
ok with just three ? I've measured the resistance of the 3 that came
out at about  200K Ohms, and I think they are meant to be less than 10
Ohms ? It'll be a new battery next ( worth more than the car no
doubt !)

mr p wrote:
> Decided it was time to fit the new glow plugs in my Peugeot 306D this
> morning, unfortunately the 4th one refused to budge and since patience
> eluded me I've rounded the nut off it. (I think it was because the
> engine had cooled down by the time I got to that one )
> 
> Anyway, is there an hope of getting this one out or will the car start
> ok with just three ? I've measured the resistance of the 3 that came
> out at about  200K Ohms, and I think they are meant to be less than 10
> Ohms ? It'll be a new battery next ( worth more than the car no
> doubt !)

The car will start with 1 duff plug with a minimum of reluctance, it'll 
run on 3cylinders for a few seconds on a cold start and chuck a bit of 
unburned fuel out the exhaust.  This will be more noticeable in cold 
weather.

Dunno about the resistance of a good glow plug.

Does the car need a new battery too?

-- 
Douglas

On Sep 1, 2:07 pm, Douglas Payne  wrote:
> mr p wrote:
> > Decided it was time to fit the new glow plugs in my Peugeot 306D this
> > morning, unfortunately the 4th one refused to budge and since patience
> > eluded me I've rounded the nut off it. (I think it was because the
> > engine had cooled down by the time I got to that one )
>
> > Anyway, is there an hope of getting this one out or will the car start
> > ok with just three ? I've measured the resistance of the 3 that came
> > out at about  200K Ohms, and I think they are meant to be less than 10
> > Ohms ? It'll be a new battery next ( worth more than the car no
> > doubt !)
>
> The car will start with 1 duff plug with a minimum of reluctance, it'll
> run on 3cylinders for a few seconds on a cold start and chuck a bit of
> unburned fuel out the exhaust.  This will be more noticeable in cold
> weather.
>
> Dunno about the resistance of a good glow plug.
>
> Does the car need a new battery too?


ok I will see how I get on with three plugs, I wish I had given the
WD40 a while to soak in though ! I suspect that I am going to need a
new battery, since I don't use the car every day , it seems that once
the volts drop below about 11.8v  it just wont start, even though the
engine spins over. Perhaps the new glow plugs will help though ?

The funny thing is that it started ok first thing this morning however
after I had been to the post office ( engine still cold ) it would not
start again with out a jump start.
( Which meant I missed my run in the Sun  !!!)

mr p wrote:

[...]
> 
> ok I will see how I get on with three plugs, I wish I had given the
> WD40 a while to soak in though ! 

I've never found WD40 helps!

If you have something that has started to undo, but is very tight, a
*proper* pentrating oil will help.

> I suspect that I am going to need a 
> new battery, since I don't use the car every day , it seems that once
> the volts drop below about 11.8v  it just wont start, even though the
> engine spins over. Perhaps the new glow plugs will help though ?

They may possibly make things worse from the point of view that with a worn
out battery, but no glow plugs, the engine would crank faster than with a
worn out battery and the additional draw of the plugs!

> The funny thing is that it started ok first thing this morning however
> after I had been to the post office ( engine still cold ) it would not
> start again with out a jump start.

That's not "funny"; it would be expected behaviour unless your post office
was perhaps 10 miles away.

> ( Which meant I missed my run in the Sun  !!!)

Not sure what you mean; if it meant you were unable to purchase a copy of
the Sun newspaper, that's a bonus at least :-)

Chris

-- 
Remove prejudice to reply.

mr p wrote:
> Decided it was time to fit the new glow plugs in my Peugeot 306D this
> morning, unfortunately the 4th one refused to budge and since patience
> eluded me I've rounded the nut off it. (I think it was because the
> engine had cooled down by the time I got to that one )
>
> Anyway, is there an hope of getting this one out or will the car start
> ok with just three ? I've measured the resistance of the 3 that came
> out at about  200K Ohms, and I think they are meant to be less than 10
> Ohms ? It'll be a new battery next ( worth more than the car no
> doubt !)

My sister's one was still starting with a few tries with only one glowplug 
working, so you should be ok.  The battery should have a nice solid 12.7 or 
so first thing in the morning, so perhaps that is more the main problem.  I 
would rather have a good battery and dead glowplugs rather than a duff 
battery and 4 good glow plugs.

On Mon, 01 Sep 2008 13:55:40 +0100, mr p  wrote:

> Decided it was time to fit the new glow plugs in my Peugeot 306D this
> morning, unfortunately the 4th one refused to budge and since patience
> eluded me I've rounded the nut off it. (I think it was because the
> engine had cooled down by the time I got to that one )
>
> Anyway, is there an hope of getting this one out or will the car start
> ok with just three ?

You can always get them out, in the worst case you just drill & helicoil  
them, but it's probably not worth it.

> I've measured the resistance of the 3 that came
> out at about  200K Ohms, and I think they are meant to be less than 10
> Ohms ? It'll be a new battery next ( worth more than the car no
> doubt !)


Well less than 10 Ohms, those or your meter are dead.

Chris Whelan wrote:
> mr p wrote:

>> The funny thing is that it started ok first thing this morning however
>> after I had been to the post office ( engine still cold ) it would not
>> start again with out a jump start.
> 
> That's not "funny"; it would be expected behaviour unless your post office
> was perhaps 10 miles away.

You assume he drove to the Post Office.

On Sep 1, 5:01 pm, Tony Brett  wrote:
> Chris Whelan wrote:
> > mr p wrote:
> >> The funny thing is that it started ok first thing this morning however
> >> after I had been to the post office ( engine still cold ) it would not
> >> start again with out a jump start.
>
> > That's not "funny"; it would be expected behaviour unless your post office
> > was perhaps 10 miles away.
>
> You assume he drove to the Post Office

that's what I meant. I drove to the post office which only takes a
minute or so, and then the car would not start again, although it
turned over.. However my other car started 3 times in a row whilst I
was faffing around jump starting the Peugeot .

 I had not used the 306 for a week or so, but the battery  should have
been fully charged when I finished the last journey, since it was a 70
mile commute.

Time for a new battery ?

mr p wrote:

> On Sep 1, 5:01 pm, Tony Brett  wrote:
>> Chris Whelan wrote:
>> > mr p wrote:
>> >> The funny thing is that it started ok first thing this morning however
>> >> after I had been to the post office ( engine still cold ) it would not
>> >> start again with out a jump start.
>>
>> > That's not "funny"; it would be expected behaviour unless your post
>> > office was perhaps 10 miles away.
>>
>> You assume he drove to the Post Office
> 
> that's what I meant. I drove to the post office which only takes a
> minute or so, and then the car would not start again, although it
> turned over.. However my other car started 3 times in a row whilst I
> was faffing around jump starting the Peugeot .
> 
>  I had not used the 306 for a week or so, but the battery  should have
> been fully charged when I finished the last journey, since it was a 70
> mile commute.
> 
> Time for a new battery ?

Time to check the alternator is charging properly, and that there is no
unintended current drain first, I think.

Chris

-- 
Remove prejudice to reply.

Tony Brett wrote:

> Chris Whelan wrote:
>> mr p wrote:
> 
>>> The funny thing is that it started ok first thing this morning however
>>> after I had been to the post office ( engine still cold ) it would not
>>> start again with out a jump start.
>> 
>> That's not "funny"; it would be expected behaviour unless your post
>> office was perhaps 10 miles away.
> 
> You assume he drove to the Post Office.

:-)

Chris

-- 
Remove prejudice to reply.

Mrcheerful wrote:
> mr p wrote:
>> Decided it was time to fit the new glow plugs in my Peugeot 306D this
>> morning, unfortunately the 4th one refused to budge and since patience
>> eluded me I've rounded the nut off it. (I think it was because the
>> engine had cooled down by the time I got to that one )
>>
>> Anyway, is there an hope of getting this one out or will the car start
>> ok with just three ? I've measured the resistance of the 3 that came
>> out at about  200K Ohms, and I think they are meant to be less than 10
>> Ohms ? It'll be a new battery next ( worth more than the car no
>> doubt !)
> 
> My sister's one was still starting with a few tries with only one glowplug 
> working, so you should be ok.  The battery should have a nice solid 12.7 or 
> so first thing in the morning, so perhaps that is more the main problem.  I 
> would rather have a good battery and dead glowplugs rather than a duff 
> battery and 4 good glow plugs. 

Our 306D will start eventually on 2 or 1 plug.  It takes a lot of 
cranking though.

I'm a bit surprised that the engine cranks if the battery's dicky 
though.  I'm not an electrician but could it be that there is not enough 
power to throw the stop solenoid open, or work the glow plug relay?

-- 
Douglas

If your plugs read 200k they are all US mine read between 1 and 2 ohms each 
(when cold).The resistance rises when they warm up I believe, but not that 
much. They are protected by a 40 amp fuse.

"mr p"  wrote in message 
news:8ba68926-f774-46c1-8742-252d263459c7@k37g2000hsf.googlegroups.com...
> Decided it was time to fit the new glow plugs in my Peugeot 306D this
> morning, unfortunately the 4th one refused to budge and since patience
> eluded me I've rounded the nut off it. (I think it was because the
> engine had cooled down by the time I got to that one )
>
> Anyway, is there an hope of getting this one out or will the car start
> ok with just three ? I've measured the resistance of the 3 that came
> out at about  200K Ohms, and I think they are meant to be less than 10
> Ohms ? It'll be a new battery next ( worth more than the car no
> doubt !)

On Sep 1, 10:20 pm, Douglas Payne  wrote:
> Mrcheerful wrote:
> > mr p wrote:
> >> Decided it was time to fit the new glow plugs in my Peugeot 306D this
> >> morning, unfortunately the 4th one refused to budge and since patience
> >> eluded me I've rounded the nut off it. (I think it was because the
> >> engine had cooled down by the time I got to that one )
>
> >> Anyway, is there an hope of getting this one out or will the car start
> >> ok with just three ? I've measured the resistance of the 3 that came
> >> out at about  200K Ohms, and I think they are meant to be less than 10
> >> Ohms ? It'll be a new battery next ( worth more than the car no
> >> doubt !)
>
> > My sister's one was still starting with a few tries with only one glowplug
> > working, so you should be ok.  The battery should have a nice solid 12.7 or
> > so first thing in the morning, so perhaps that is more the main problem.  I
> > would rather have a good battery and dead glowplugs rather than a duff
> > battery and 4 good glow plugs.
>
> Our 306D will start eventually on 2 or 1 plug.  It takes a lot of
> cranking though.
>
> I'm a bit surprised that the engine cranks if the battery's dicky
> though.  I'm not an electrician but could it be that there is not enough
> power to throw the stop solenoid open, or work the glow plug relay?

Yes, I was thinking along those lines too, hence why my under the
bonnet diagnoses at the road side, included a couple of well aimed
thumps on what looked to be  the fuel solenoid, using the wheel brace
that I had to hand ! Maybe it's a combination of things, eg. low
battery and sticky solenoid.

Cheers ;-)

mr p wrote:
> Decided it was time to fit the new glow plugs in my Peugeot 306D this
> morning, unfortunately the 4th one refused to budge and since patience
> eluded me I've rounded the nut off it. (I think it was because the
> engine had cooled down by the time I got to that one )
> 
> Anyway, is there an hope of getting this one out or will the car start
> ok with just three ? I've measured the resistance of the 3 that came
> out at about  200K Ohms, and I think they are meant to be less than 10
> Ohms ? It'll be a new battery next ( worth more than the car no
> doubt !)

Yeah I had just this problem recently. I bought a six sided (not the 12 
sided ones...) deep 12mm socket from my local motor factors. Applied 
lots of WD40 to the base of the plug, tapped the socket on, twisted 
firmly but cautiously and the plug came out no bother.

This was the third from the left side of the engine as you look at it. 
If yours is the fourth then you're in more trouble as the fuel filter 
housing and a couple of other odds and sods in the way.

If the car starts then just leave it IMHO, mine started on three plugs 
for ages; in fact it still did, I only changed the rounded off one to 
eliminate the plugs as the cause of the smokey cold-starts I've been 
getting (looks like I agree with Conor - weeping injectors. Should get 
them tested I suppose...)

-- 
Abo

On Sep 2, 9:55 pm, Abo <n...@spam.thanks> wrote:
> mr p wrote:
> > Decided it was time to fit the new glow plugs in my Peugeot 306D this
> > morning, unfortunately the 4th one refused to budge and since patience
> > eluded me I've rounded the nut off it. (I think it was because the
> > engine had cooled down by the time I got to that one )
>
> > Anyway, is there an hope of getting this one out or will the car start
> > ok with just three ? I've measured the resistance of the 3 that came
> > out at about  200K Ohms, and I think they are meant to be less than 10
> > Ohms ? It'll be a new battery next ( worth more than the car no
> > doubt !)
>
> Yeah I had just this problem recently. I bought a six sided (not the 12
> sided ones...) deep 12mm socket from my local motor factors. Applied
> lots of WD40 to the base of the plug, tapped the socket on, twisted
> firmly but cautiously and the plug came out no bother.
>
> This was the third from the left side of the engine as you look at it.
> If yours is the fourth then you're in more trouble as the fuel filter
> housing and a couple of other odds and sods in the way.
>
> If the car starts then just leave it IMHO, mine started on three plugs
> for ages; in fact it still did, I only changed the rounded off one to
> eliminate the plugs as the cause of the smokey cold-starts I've been
> getting (looks like I agree with Conor - weeping injectors. Should get
> them tested I suppose...)
I have the Halfords professional sockets, which I think are like the
ones you mention.  I  thought I had rounded off the socket at first !

mr p wrote:
> On Sep 2, 9:55 pm, Abo <n...@spam.thanks> wrote:
>> mr p wrote:
>>> Decided it was time to fit the new glow plugs in my Peugeot 306D this
>>> morning, unfortunately the 4th one refused to budge and since patience
>>> eluded me I've rounded the nut off it. (I think it was because the
>>> engine had cooled down by the time I got to that one )
>>> Anyway, is there an hope of getting this one out or will the car start
>>> ok with just three ? I've measured the resistance of the 3 that came
>>> out at about  200K Ohms, and I think they are meant to be less than 10
>>> Ohms ? It'll be a new battery next ( worth more than the car no
>>> doubt !)
>> Yeah I had just this problem recently. I bought a six sided (not the 12
>> sided ones...) deep 12mm socket from my local motor factors. Applied
>> lots of WD40 to the base of the plug, tapped the socket on, twisted
>> firmly but cautiously and the plug came out no bother.
>>
>> This was the third from the left side of the engine as you look at it.
>> If yours is the fourth then you're in more trouble as the fuel filter
>> housing and a couple of other odds and sods in the way.
>>
>> If the car starts then just leave it IMHO, mine started on three plugs
>> for ages; in fact it still did, I only changed the rounded off one to
>> eliminate the plugs as the cause of the smokey cold-starts I've been
>> getting (looks like I agree with Conor - weeping injectors. Should get
>> them tested I suppose...)
> I have the Halfords professional sockets, which I think are like the
> ones you mention.  I  thought I had rounded off the socket at first !

Ouch, pretty nackered then. With mine the previous owner had rounded it 
but I thought I'd have a crack with my regular sockets (Draper) anyway. 
I guess the glow plug metal is too soft, it just rounded off straight 
away :(

-- 
Abo