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Glowplug light not lit - wont start

Posted: Tue Nov 13, 2007 1:04 pm
by ronhud
Just started my Freda - forgot to wait for glowplug light - she started then stopped straight away. Now glowplug light doesnt come on - starter motor turns over ok but wont fire. I tentatively put 6 litres of rapeseed in 2 days ago (10%) - she ran fine yesterday - hope it isnt that!

Thought I might need to leave it for a while - waited 15 mins but still no glowplug light. Any ideas?

Ron

Posted: Tue Nov 13, 2007 1:56 pm
by Ian
I reckon you've blown your glowplug relay. On cold mornings, and if using veg oil, the plugs need to work harder to ignite in the engine chamber.

Posted: Tue Nov 13, 2007 3:13 pm
by ronhud
Thanks for quick reply. I rang the garage I bought from and they suggested energising the glowplug bar directly from the battery +. I did this and still no firing whatsoever so suspicion has now turned to fuel not getting through. I'm waiting for a call back with next suggestion or mechanic visit.

Posted: Tue Nov 13, 2007 3:56 pm
by grumpo
When you switch the ignition on 2 important things happen.

1: The glowplug warning light comes on, even if the relay has popped.

2: The fuel cutoff valve lifts.

If neither of these (or more) happens, I would be lookin for a fuse or
wire which controls these events.

Posted: Tue Nov 13, 2007 3:56 pm
by dandywarhol
Ian wrote:I reckon you've blown your glowplug relay. On cold mornings, and if using veg oil, the plugs need to work harder to ignite in the engine chamber.
Hmmm, plugs only heat up the air so won't work any harder IMO

Posted: Tue Nov 13, 2007 4:06 pm
by ronhud
Thankfully resolved. It was the mini blade fuse under the dash! Oh dear why didn't I go there first? No 9 Engine as revealed on the helpful fact sheet photo. There's a lot to learn and a lot of folks helping here - best £10 I've spent since £10 was a weeks wages!

Posted: Tue Nov 13, 2007 4:54 pm
by mikeonb4c
Excellent news ronhud - the diagnostic skills of BF members never cease to amaze me - and so QUICK. I'd never have guessed a fuse - only hope I remember when my turn comes for this fault.

Any idea what might have cuased the fuse to 'pop' as I've not heard of it happening before :roll:

Posted: Tue Nov 13, 2007 11:34 pm
by Bob
mikeonb4c wrote:Excellent news ronhud - the diagnostic skills of BF members never cease to amaze me - and so QUICK. I'd never have guessed a fuse - only hope I remember when my turn comes for this fault.

Any idea what might have cuased the fuse to 'pop' as I've not heard of it happening before :roll:
Probaly turning engine over before the plug light had gone out. We used to have a Bedford CF in work which was very prone to this. If you turned the engine over before the light had gone out, even with a hot engine it always gave problems.

Posted: Thu Nov 15, 2007 2:42 pm
by ronhud
I think Bob has the reason. It's not blown since. One thing I've learned - keep a pair of narrow nosed pliers in my toolbox because my fingers cant remove the mini blade fuses.