The_Josh_Bear
Full Access Member
So myself and another member recently have had coolant leaking from the head gaskets at the rear of the engine. I asked about doing a head retorque and got some answers on both sides, I went ahead and did it. 10k worry free miles later its leaking almost zero coolant and whatever is missing I haven't yet cared enough to trace it down.
The question I have now that I've already done it:
What sequence to you torque them with? Everyone says "the book sequence" but in the book it goes by crisscross pattern for two sets as all heads do, then it goes sequentially left to right accross the head for the last two sets. These are completely different patterns.
Second question and maybe more important: all the bolts under the valve cover are SOAKED in oil. All the bolts visible outside the valve cover are dry and rusty. How do we ensure they are all torqued equally?? Lubed threads tighten way more at the same torque as rusty dry threads.
Thanks!
Edit: I used the sequential pattern since that's how the final pattern goes, but I was pretty torn about it. And irregardless of the coolant issue, I'm really glad that I retorqued the heads. Some of the bolts were terribly easy to release.
The question I have now that I've already done it:
What sequence to you torque them with? Everyone says "the book sequence" but in the book it goes by crisscross pattern for two sets as all heads do, then it goes sequentially left to right accross the head for the last two sets. These are completely different patterns.
Second question and maybe more important: all the bolts under the valve cover are SOAKED in oil. All the bolts visible outside the valve cover are dry and rusty. How do we ensure they are all torqued equally?? Lubed threads tighten way more at the same torque as rusty dry threads.
Thanks!
Edit: I used the sequential pattern since that's how the final pattern goes, but I was pretty torn about it. And irregardless of the coolant issue, I'm really glad that I retorqued the heads. Some of the bolts were terribly easy to release.
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