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Does anyone know how long the glow plug relay should put power the the plugs before it shuts off?
I'm having trouble starting my 1980 240D and it has 3 bad glow plugs. It looks like the relay shuts off after 50-60 seconds. Thanks for any help in advance

AJ


AJ Dance
"Sal"
1980 Mercedes 240D
"The Slug"
1981 Mercedes 240D
 
Location: Indiana | Registered: 25 October 2005Reply With QuoteEdit or Delete MessageReport This Post
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That sounds correct for the length of time. That's about how long the GP relays in mine stay on when the engine is cold. When the engine is warm it will kick off sooner.

This message has been edited. Last edited by: biodiesel300TD,


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82 Mercedes 300TD - 25k on biodiesel
78 Mercedes 240D - 10k miles on a two tank WVO system
77 Mercedes 300D - New Project
www.schumanautomotive.com/forums/ - Vintage Mercedes Forum.

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Location: Albany, OR | Registered: 22 August 2005Reply With QuoteEdit or Delete MessageReport This Post
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I think it depends a bit on your system.

The Elsbett system starts the car on 100% veggie oil.
Doing so, they keep the glow plugs hot until the engine reaches "running temp".

I think my stock VW keeps the glow plugs on for about 30 seconds before starting, and I think they are turned off at the time the car is started, but I haven't confirmed.
 
Location: Oregon | Registered: 17 October 2007Reply With QuoteEdit or Delete MessageReport This Post
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