In my ongoing attempt to keep this thread going...
First of all the Bosch PDF that I linked to in post #39 DOES have torque specs. See page #39:
https://aa-boschap-uk.resource.bosc...tems_1/glow_plugs/pia_glow_plugs_en_58333.pdf
That PDF has everything you might want to know about glow plugs and related issues (history, designs, emissions, cold starting, troubleshooting). Lots of good info. It really is a good resource.
BTW -- one thing it says is that anti-seize is NOT necessary:
p.14: "The screw-in thread is coated and
rolled. This means that it cannot seize
in the cylinder head and easy unscrewing
is guaranteed. In addition, high mechanical strength is guaranteed."
p. 43: "Does the Duraterm® have to be greased during
assembly?
No. The nickel-plated, rolled thread does not corrode
and does not seize in the engine."
Bosch does not specifically advise against using anti-seize, so I probably still will, but that does affect the installation torque required.
The glow plugs arrived yesterday. The seller must have used a bicycle courier from Florida to Maryland.
Actually it was "First Class", which a friend who works for the USPS says was downgraded several years ago, but they kept the name. To be fair, the plugs did arrive within the claimed delivery window.
After reading about issues with counterfeit parts (in the PDF above) we went to Bosch's website and confirmed that the plugs are genuine.
The were about $70 for 6 each, here: https://www.amazon.com/gp/product/B00A9Z1BZ4/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
For now, I'm assuming the glow plug module is good, but I'd like to confirm that.
Does anyone know of a troubleshooting procedure for the module?
There are generic trouble codes that relate to the gp module that an ordinary scanner can read. More information here: https://www.obd-codes.com/p0670
So as long as my scanner (a decent Launch unit) cannot see any DTCs I'll leave well enough alone.
First of all the Bosch PDF that I linked to in post #39 DOES have torque specs. See page #39:
https://aa-boschap-uk.resource.bosc...tems_1/glow_plugs/pia_glow_plugs_en_58333.pdf
That PDF has everything you might want to know about glow plugs and related issues (history, designs, emissions, cold starting, troubleshooting). Lots of good info. It really is a good resource.
BTW -- one thing it says is that anti-seize is NOT necessary:
p.14: "The screw-in thread is coated and
rolled. This means that it cannot seize
in the cylinder head and easy unscrewing
is guaranteed. In addition, high mechanical strength is guaranteed."
p. 43: "Does the Duraterm® have to be greased during
assembly?
No. The nickel-plated, rolled thread does not corrode
and does not seize in the engine."
Bosch does not specifically advise against using anti-seize, so I probably still will, but that does affect the installation torque required.
The glow plugs arrived yesterday. The seller must have used a bicycle courier from Florida to Maryland.
Actually it was "First Class", which a friend who works for the USPS says was downgraded several years ago, but they kept the name. To be fair, the plugs did arrive within the claimed delivery window.
After reading about issues with counterfeit parts (in the PDF above) we went to Bosch's website and confirmed that the plugs are genuine.
The were about $70 for 6 each, here: https://www.amazon.com/gp/product/B00A9Z1BZ4/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
For now, I'm assuming the glow plug module is good, but I'd like to confirm that.
Does anyone know of a troubleshooting procedure for the module?
There are generic trouble codes that relate to the gp module that an ordinary scanner can read. More information here: https://www.obd-codes.com/p0670
So as long as my scanner (a decent Launch unit) cannot see any DTCs I'll leave well enough alone.