IDIDIDIhoDhoDhoDO
Registered User
I put motorcraft beru glow plugs in my truck when I first got it several years ago. I don't drive the truck much so I've only put about 8k miles on it since I've had it. The truck starts pretty good but lately it had gotten a little slower to start so I check the glow plugs. Cylinder 3 glow plug had infinite resistance, the others around 0.3 ohms. I put a new motorcraft beru plug in cylinder 3 today and the bad plug that I pulled out of there had pitting on the lower half of the heating element. I have read on this forum that having timing that is too far advanced can eat up glow plugs. If you look at the picture of the glow plug does that look like what is going on? That seems like it might be an excess amount of pitting for 8k miles. At that rate I can't see glow plugs lasting past 20k miles at best.
I have a ferret timing meter and I have set the timing at hot idle, with the cold advance off, to 10-10.5 degrees. Cold advance solenoid on is 12-12.5. I don't have a dial back timing light, just a basic one so I used timing tape on the harmonic dampener instead and it can be hard to get a very exact reading, also the timing becomes too erratic at around 1500 rpm with the ferret so I don't know what the timing actually is past that RPM. Also, where I am the altitude is almost 7000 feet so I felt pretty safe with a little extra timing advance.
What do you think? Is that a normal amount of erosion for a glow plug that is around 4 years old and with 8000 miles on it, or too much?
I have a ferret timing meter and I have set the timing at hot idle, with the cold advance off, to 10-10.5 degrees. Cold advance solenoid on is 12-12.5. I don't have a dial back timing light, just a basic one so I used timing tape on the harmonic dampener instead and it can be hard to get a very exact reading, also the timing becomes too erratic at around 1500 rpm with the ferret so I don't know what the timing actually is past that RPM. Also, where I am the altitude is almost 7000 feet so I felt pretty safe with a little extra timing advance.
What do you think? Is that a normal amount of erosion for a glow plug that is around 4 years old and with 8000 miles on it, or too much?