Originally Posted by
Rus
Hello all!
After bringing my newly acquired 535i home, I finally decided to figure out why the engine was running like crap. Turns out that all of the spark plugs were gapped too narrow and plug #5 was cross-threaded in only about 5mm (if I ever find the person who did this, they'll regret it dearly). I've purchased a spark plug thread chaser in hopes of restoring the threads, but I cannot get it to line up correctly in the hole. Only the first few threads are damaged, but that is enough to make it close to impossible to align the tap. Does anyone have any insight about fixing the threads? I am also loosing coolant and the leak appears to be on the passenger front of the engine. It doesn't seem like there are any hoses or fittings that could leak on that side, but the junction between the head and the block appears wet in the corner. Is this corner a common area of concern when it comes to blown head gaskets? The car isn't using coolant (no smoke and plugs are dry) and there is no coolant in the oil either. If I do end up pulling the head, where should I obtain the proper gaskets for it and what do the gasket kits include? (Looked on BMA but no info is provided regarding the contents of gasket kits) What are common symptoms for a warped head? Thank you in advance for any input.