Cliff notes at bottom
So about 3k miles ago I had the timing belt/wp changed by a friend (who works at a shop). Not long after, I started to hear a whining noise. Thinking it was the belt, I changed that - still whiney. My friend (unbeknownst to me) had tightened the piss out of the alternator/wp belt. I think his overtightening put a beat down on the bearing in the alt, and that is what I'm hearing.
When I was switching the belts, I noticed one of the coolant hoses was slightly cocked at the outlet of the thermostat housing, and decided to re-seat and tighten. I spilled a little coolant, and when the check panel asked me for more it made sense. However, it keeps draining the reservoir. Three times in the last 300 miles I have had to top it off, and I see no leaks. The oil looks ok, but when pulling the cap after running it I see vapor, which leads me to believe coolant is getting in there. I have noticed an oil leak for quite some time from what looks like the head/block joint. So, the HG could certainly be going. Motor has about 100k on a rebuild. What I am wondering: could the bearing in the wp be messed up too, causing it to internally leak and mix with oil? Maybe that makes no sense but I figured I'd ask someone who is a little more familiar with the m20 than I am. I could actually hear the bearing in the old wp before we swapped it; it was noisy but in a clunky way. I just don't want to face the fact that it may well need to be torn down again. Any opinions or advice will be considered. Thanks for reading.
Cliff notes: Losing coolant, steam in crankcase when hot, could water pump leak coolant into engine somehow?
So about 3k miles ago I had the timing belt/wp changed by a friend (who works at a shop). Not long after, I started to hear a whining noise. Thinking it was the belt, I changed that - still whiney. My friend (unbeknownst to me) had tightened the piss out of the alternator/wp belt. I think his overtightening put a beat down on the bearing in the alt, and that is what I'm hearing.
When I was switching the belts, I noticed one of the coolant hoses was slightly cocked at the outlet of the thermostat housing, and decided to re-seat and tighten. I spilled a little coolant, and when the check panel asked me for more it made sense. However, it keeps draining the reservoir. Three times in the last 300 miles I have had to top it off, and I see no leaks. The oil looks ok, but when pulling the cap after running it I see vapor, which leads me to believe coolant is getting in there. I have noticed an oil leak for quite some time from what looks like the head/block joint. So, the HG could certainly be going. Motor has about 100k on a rebuild. What I am wondering: could the bearing in the wp be messed up too, causing it to internally leak and mix with oil? Maybe that makes no sense but I figured I'd ask someone who is a little more familiar with the m20 than I am. I could actually hear the bearing in the old wp before we swapped it; it was noisy but in a clunky way. I just don't want to face the fact that it may well need to be torn down again. Any opinions or advice will be considered. Thanks for reading.
Cliff notes: Losing coolant, steam in crankcase when hot, could water pump leak coolant into engine somehow?
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