New glow plugs - all is well.strada-caster wrote:Tony,
do you have the new plugs yet??
any update on your situation?
My symptoms were:
- The engine would always "catch" and start firing on the first or second crank.
- If the vehicle was stored underground (+15 degC) or if it was outside at or above +15 degC, no problems. Didn't matter how long it sat cold. This is why I primarily thought glow plugs, since I understand that a leaky IP seal would let in some air overnight and you'd have a rough start no matter the temperature.
- The colder, the more worster-er it got. But the lumpy idle was always rhythmically-lumpy. Like the same cylinder(s) had issues. Again, points to one or more plugs on their way out.
So if you're trying to diagnose, see if you can store your beast in the warm for a day or so (or leave the block heater on) and see if she starts up right away. If so, I'd suspect plugs over IP.
But if you have changed your plugs to no avail, I am beginning to suspect that not all glow plugs are created equal.
I had months ago tried a set of HKT plugs part # CP-05, and they were absolute garbage (for me). I went back to a set of used plugs of unknown origin (off an imported van - I could find no replacements at the time), and they served me fine until recently.
Butch at CVI gave me a set of Hyundai OEM plugs for their 4M40 vehicle (Hyundai Mobus part # Y722JS), and the tip was slightly (1mm?) longer than my dying ones. Butch assured me they fit, and tho' I held my breath when I first turned it over with the new plugs, no problems.
I can't help but wonder that industry-wide, if glow plugs use a common thread size, then making a plug that 's a bit on the short side will allow them to be used in a wider range of vehicles, but not optimized perhaps for ours.
At any rate, I can vouch for these plugs:, and I'm a happy boy.
Tony.