Hello All,

Looking for some feedback before I start poking around.

Cars runs fantastic except for immediately after cold start for about a minute. Glow plug light functions and start up is attempted after light turns off. Vehicle intermittently misfires. No lingering pressure in the coolant systems or indications of combustion leaks.

Rebuilt the upper end of my 87 300d with the following:

017 head completely rebuilt. Guides, seals, valve job, decked.

Inclined injectors with Monark 314's rebuilt by Greazer (thank G).

New Bosch 017 specific glow plugs. 001-159-17-01-M14. Installed with torque wrench...

Couple of thoughts:

Does the .971 use a different GP system to light the GPs or keep them lit after start up? If yes should I adapt?

I fully understand that I need to check for individual glow plug function, but would like some other ideas to follow up on as I have limited time per week to chase non critical problems.

Thanks in advance fellow diesel nerds.

JM