The water pump R&R is a cut and paste from the timing cover replacement tech note...Had today off from work, so after the lawn, I spent some time cleaning up what I could reach in and around the water pump. I took it for a ride and got it nice and warm. I’m 99% sure the water is coming from the thermostat housing.
So while I have it apart, I’ll change the bypass and heater tube hoses, as they are both bulging pretty good. Who knows how long they’ve been on there.
Not a sign of water around the water pump weep holes either...... another reason I think the pump is not the culprit.
I guess my worse case now is that it’s the timing cover. Hope not.
Thank you! I guess I’ll know more once I get the thermostat housing off, but the only spot the cover is wet, is right under the housing...... so I’m hoping I get off easy on this one.The water pump R&R is a cut and paste from the timing cover replacement tech note...
So, if you need to replace the timing chain cover, I have a step by step how to tech note for that.
That was my concern with the paper. I cleaned it up and used some fine sandpaper to get it smooth, but there are definitely some pits on the manifold side. I’m thinking that may have been what was causing the leak in the first place. There was no blue on that side, only on the housing side when I took it apart. I figure the blue will get into the pits.From your pic it looks like you have some corrosion/imperfection on the mating surface of the intake.
I would pit a smear of RTV on both sides of the gasket and install.
I was real worried about breaking a bolt. I loaded it up with wd40 and PB for three days. One was pretty tight, but I got it. The other came right out.Anti seize on any bolts that are used to attach aluminum and metal together and more so when it involve liquid flowing through them, that includes the shaft of the bolts that are not threaded when used in the timing cover.
I’m glad to hear that works because that was how I planned on attacking it. I wanted to set it up tonight when I get home from work, however I’m remembering I don’t have the new bolts yet. God forbid they give you new bolts with a new housing!!I'll be honest and say even though I've done it countless times I still hate fooling with the thermostat housing and waterpump/timing cover. Last time though I actually did a few things that really helped. On the thermostat housing, I taped a full piece of sandpaper on my bench. I held the gasket surface of the housing flat and went back and forth till it was perfectly flat and smooth. Don't get carried away. Then I put some Ultra Black on the housing and placed the thermostat in the recess. Followed this with the gasket and let all that tack up. I only put enough RTV to be consider a skim coat...none squeezed out. Then I put a skim coat on the lower intake and put the housing on with bolts finger tight only....very important. Let that sit over night. I've had so much better results now that it let it dry completely before any fluids touch it. Zero leaks for me now.
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