21-07-2014, 08:26 AM
(11-07-2014, 10:48 PM)Ruan Wrote: Lol yeah you'll destroy the plugs if you leave them on for too long!They are internally temperature controlled.
It's a service item.
My last set for a VW were 15quid. So who cares ?
Quote:Glowplugs won't improve the running really - you probably need more injection timing which will help counter the ignition delay from mega cold gloopy veg.
Bear in mind on newer diesels that glow plug run time is extended depending on temperature. In a direct injection that's making a difference
I can assure you from my own experiences on IDI that it makes quite a difference.
That the difference out weights the cost of a set of plugs perhaps once a year if unlucky.
Quote:The hunting is purely due to the governor struggling to control engine speed due to the thickness of the fuel and the internal vane pump struggling to get fuel into the pump case and maintain the pressure.
Well that's one issue, but turning the plugs on is clearly heating things up and improving combustion until said combustion has warmed the chamber up enough that they are no longer needed.