Re: [diesel_mercedes] Glow plug issues

 

Chip, 
 
    Congrats on reducing the current drain by cleaning the connections. 
 
    Since your's is a 1982, it's got parallel glowplugs, rather than the serial circuit of earlier cars. 
 
    The 'dead' glowplug light on the dash is a DESIGNED IN indicator.  When it fails to light, it's telling you that at least two of your glowplugs have failed (gone open).  When two or three go bad, then you will automatically have trouble starting (remember what the glowplugs are for). 
 
    Ask me how I know - mine is a 1981, 300SD.  Same engine that you've got.  With a lot of cranking, it would light off even into the Los Angeles winter (cooler than Houston summer).  But as soon as I put new glowplugs in, the dashboard light came back on and the engine now starts in about 1/4 turn. 
 
 
 
In a message dated 7/9/2013 7:29:13 A.M. Pacific Daylight Time, czulli@gmail.com writes:
 

So...I had been having this recurring problem of burning out the 70A fuse block on my relay every few weeks in my 1982 300CD turbo. I probably put in 8 different fuses in a 6 month period of time.

Then I got to looking at the two screw mounts for that fuse bar and found one of the two screws with a good but of tarnish and corrosion. I took out the screw and both washers and really polished them back to new again along with the copper bottom of the relay itself. Put it all back together and I have not had to replace the fuse link since. It has been maybe 6 months of the 70A bar fuse holding without replacement.

But...there are now occasions when my glow plug light on the dash will not come on. On those occasions I have to start the car without the aide of glow plugs and it takes a good bit of fast cranking before she fires up. (good thing I live in Houston in this summer heat)

So I am still thinking it is something in the relay that does not always get power over to the glow plugs or the ignition might not be feeding power to the relay block.

I would love to have some ideas from the board about what might be going on.

Chip
Houston

__._,_.___
Reply via web post Reply to sender Reply to group Start a New Topic Messages in this topic (3)
Recent Activity:
.

__,_._,___

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)