Great! You can test the old GPs and keep the good ones as spares. Use a large wire size as they pull high amperage. I like to use battery cables, powering them from a car battery. They should glow red hot within about 6 seconds or less.
Too bad about the apparent low compression, which is what this symptom exhibits (cold/hot starts OK, warm starts require GPs). When was the last valve clearance check/adjust? Driving around with the valves too tight can burn and erode them.
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1985 744 gle d24t
1985 745 gle d24t
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