Vehicle & Technical > Discovery
3.9 v8 Discovery wont start....
Budgie:
Never used a torque setting on a sump plug. Just nip it up until it seats properly, undo it again if you're not sure as it should come off with a normal spanner.
As you've replaced the ignition leads since this all started, make sure they are going to the right cylinders. The backfires through the air filter could be caused by the plug in one cylinder sparking while in the inlet valve is open, meaning you have the wrong ignition lead on it. ;)
Pull all the leads off the dizzy cap and start again, referring to your Haynes Manual for the correct location of the leads on the dizzy cap.
LANDYTIM:
Ok ill check the leads, we replaced them one at a time to avoid a wrong l#ead but I will check anyway!
Tim
J.D.:
--- Quote from: hairyasswelder on October 29, 2008, 21:17:36 ---Timing belts, adjusting tappets????? Only on Diesels :-.
--- End quote ---
Did say I wasn't familiar with V8s. I've worked on one and that was only to replace the water pump, all the trucks I work on are diesels.
hairyasswelder:
--- Quote from: J.D. on October 31, 2008, 10:04:26 ---
--- Quote from: hairyasswelder on October 29, 2008, 21:17:36 ---Timing belts, adjusting tappets????? Only on Diesels :-.
--- End quote ---
Did say I wasn't familiar with V8s. I've worked on one and that was only to replace the water pump, all the trucks I work on are diesels.
--- End quote ---
Thought so ;) wasnt knocking you but 90% of disco's are diesels, thats why I said try Range rover section as 90% are V8's ;)
(90% is a rough number not an exact figure ;) )
LANDYTIM:
--- Quote from: trecfive on October 30, 2008, 13:10:46 ---Have you been stop-starting the car over a short period without letting it get up too working temperature?. If so you have flooded it, plane and simple. The cure, remove all the plugs , heat them up with a blowlamp or put them on the gas ring on the cooker(you can then remove two at a time and they stay relatively warm) replace all eight, a charged up battery ,and it should fire up, run lumpy for a while then even out to that nice v8 burble. If it was running nice before,it should still run nice now. How do i know? been there before.
--- End quote ---
How long should the plugs be heated for with a blowlamp?
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