Quote:
Originally Posted by PKdavidson
First cold morning in Georgia today. Noticed my glow plug light didn't come on at all. Engine started rougher than normal, one or two cylinders weren't firing at first and then cleared up quickly.
Checked the relay later. It made an audible click after about 45 sec. after turning on the key. So sounds like the relay is working. Would a blown relay fuse still allow relay to click at all?
Guessing I've got a couple of bad glow plugs. Want to fully eliminate the relay as a cause simply because it's easier to get to. If I change out glow plugs it looks like I have to pull the whole intake since this is the non-turbo om602.
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No.
As you said likely some issues with the actual glow plugs.
If you pull the Glow Plugs you should also ream out or use some alternative method to clean out the Carbon from the glow plug holes.
(I don't know if your Engine has an aluminum cylinder head or an iron one but the below stuff applies to the ones with aluminum cylinder heads and their longer glow plugs.)
If don't think the Glow Plugs have ever been removed if the cylinder head is aluminum it used to be common for the head to break off of one or more of the glow plugs due to corrosion in the treaded area and or carbon build up around the glow plug.
Look for methods to decrease the chance of snapping off the head on the glow plug.
Repair Links Fast navigation
http://www.peachparts.com/shopforum/diy-links-parts-category/146034-fast-navigation-do-yourself-links.html
Note it you take to a shop to have the Glow Plugs removed and a head snaps off shops usually won't try to remove it themselves because if they damage the cylinder head they are stuck with the responsibility for that.
They usually want to remove the cylinder head and send it to a machine shop. Besides not having the responsibility if they damage your cylinder head the Shop is going to get more $s for removing and re-installing the cylinder head.
Be optimistic but if it is a daily driver plan for another ride to work incase more break.
Use only Beru or Bosch Glow Plugs. Put some never-sieze type compound on the threads when you put them back in.