Can anyone tell me what the purpose of the paint on the bolt / screw heads is?
I pulled the airbox off the motor last night to remove some debris and clean it when I noticed the yellow paint on the bolt heads. That got me to wondering, the previous owner of this boat told me last August when I bought it that the injectors had been recently cleaned and calibrated but he had no paperwork to back it up and could only give me the number of the shop who did the work. I called the shop to verify the work but that guy told me he doesn't keep records but thought that he could remember doing the injectors on this boat. Definitely not making me feel warm and fuzzy about what has been done.
So I an wondering, if these bolts that hold the fuel rail down were removed to service the injectors, wouldn't the paint look disturbed somehow? Or I suppose the mechanic could have put new paint marks on it??
What are your thoughts on this? Should I have them serviced or not worry at this time?
Not sure why the photo is sideways, sorry about that.