^^^^ This, as Ron says, if you watch the red dash warning lights for alternator and oil, they will visibly brighten when the pre heat circuit finally turns itself off, a good 10 to 15 seconds or so after the glow plug light turns off
Thank you all for your replies especially Geoff. I looked into it a bit further I checked the glow plugs with a multimeter and could not a get a reading in Ohmns just kept getting the 1. reading that indicates the value out of the meters range, I got that reading on all of the meters settings.
So I went ahead and took the plugs out and tried passing a current through them, very carefully of course. I connected my jump leads to the battery held each plug in the negative clip and touched the positive clip onto the positive terminal on the plugs, all of them were dead not a glow to be had.
So I have ordered a new set and am waiting for them to arrive, like a div I ordered them from ebay without thinking of the local auto factor, if I went local it would be running now fingers crossed.
Anyway now to the problem I have discovered, three of the plugs cracked off and came out lovely, but one of them turned about half a turn then tightened up. I didn't want to force it as I have premonitions of stripping the plugs thread in the engines head so didn't force it any further. On closer inspection though this tight plug looks different to the other three so I guess this is not a new issue and has been encountered before.
Now I am thinking that fitting three new glow plugs when they come will get my van running again and even though not an ideal solution it will get me mobile. Once I am running again I can book the van into the my local trusted garage to get this stuck plug sorted.
Sounds like you are on the home straight .....
Three plugs will start the engine and when the engine is good and HOT have another try at removing the stuck plug - differential expansion of dissimilar metal. Hopefully you will have a bit more luck.
If the plug will turn a little you have a chance but don't get too carried away ! keep winding the plug back and forth and keep running some WD40 type spray down into the threaded area around the plug to see if this will help it come out. Don't be impatient and strip a thread !!!
The following 2 users say Thank You to geoff for this post:2 users say Thank You to geoff for this post
• ron, Saul