Quote:
Originally Posted by cre
So much to cover here.
The waterfall sound indicates nothing more than air in the heater core....
where the coolant has gone is always the next question though.
If the white smoke smells sweet at all it is most likely coolant. You can absolutely blow a HG and have it do nothing but dump coolant into the cylinders.... The cylinders are surrounded by eccentric elliptical coolant passages (I know you saw them, they're IMPOSSIBLE to miss). Pull your spark plugs and check them for water and look into the cylinders for moisture or to see if any of the piston crowns looks like it's been getting steam cleaned.
The preferred torque is 75ft lbs for bolts... studs use a higher torque; Whether you use ARP or Toyota doesn't matter they're both very solid fasteners and are reusable (although I don't recommend reusing 20+ year old fasteners).
How rough were the engine and head decks? Was everything checked for flatness? Where the head and block inspected for cracks and micro-fractures? Did you put any type of coating on the HG? Did you retorque after a few heat cycles? How many miles have you put on the engine since? Were the threads in the block properly cleaned and chased?
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i do recall seeing the coolant passages on both sides of the cylinders. The engine and head decks im guessing your talking about the part the HG goes in between, were really smooth after machine work was finished. I dont recall double checking his work on flatness but the master mechanic that helped me rebuild it may have i am for sure checking it if a BHG is confirmed. I was told by NAPA the head and block was checked for cracks and micro fractures. I didnt put any coating on my HG when i rebuilt the engine as i didnt think it would be necessary i was told the metal would heat up and bond the HG to the head and block. I have pt a little over 5K miles on it trouble free other than with the distributor which i think is shot it leaks oil from the weep hole on the bottom side but at a slow rate. Im not sure if the mechanic that did the machine work cleaned and chased the threads in the block but the head bolts were cleaned well with cleaner and a wire brush i do remember putting them in and they went in smoothly. I have been looking into different brand HG's and different materials. I know my previous one was a composite but not sure of the brand i would like to avoid doing more machine work unless it is completely necessary so i want to avoid metal HG's i dont plan on beefing the engine up, so what brand/material HG should i use?