Quote:
Originally Posted by packerfan
Thanks funola.
Pulling out the engine to replace the glow plugs just seems crazy to me.
I just feel there is a design flaw there somewhere that they get stuck in the first place. I think glow plugs should be as easy as replacing spark plugs in a gasser and why would you design the intake manifold around them so that such a simple would be job is so labor intensive?
I used to drive VW diesel Jettas and glow plug changes were a walk in the park.
Okay, I'm done venting!
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I would not call it a design flaw. The glow plug has gotten longer and smaller in diameter with newer engine designs but the way they seal via the flare is the same. I think the problem is due to improper installation when the glow plugs are changed, due to debris between the sealing surfaces or improper torque. This allows carbon to breach the sealing surface and pack the area between glow plug body and head cavity. The smaller diameter and longer glow plugs are just more prone to breaking when packed with carbon and ham fisted mechanics/ DIY try to remove them using bad techniques.