[bruno666]

Should I retorque head bolts? Yep, that seems to be a big question on the web and it gets, like most questions on the internet, a variety of answers. In short, at least here in 2020, the answer is no, you don't have to retorque head fasteners, maybe. You see, just like the weather man there's always a chance of rain and with head gaskets there's still times when retorquing the bolts and studs is call for, but it's not very often. If you catch any seeping you can try retorquing the bolts, but if anything gets between the gasket and the block or head surface it may be too late to save yourself from installing a new head gasket. Some manufactured might call out for a retorque procedure, but today, with our modern head gasket materials, it's a pretty rare deal. [links]

[Pippin]

After doing some research it seems that the idea of retorquing head bolts originated "back in the day" when composite head gaskets were commonplace. After being torqued down these gaskets would tend to "settle" a bit, which made retorquing them a good idea to prevent seepage and other issues. Modern head gaskets don't have this issue and as such don't require retorquing. After all, when you buy a new LS powered Camaro or Coyote motivated Mustang do you have to bring it back to the dealership after 100 miles to have the head bolts retorqued? here

[gilbertj0hn]

The best way to know for sure is to read the head gasket manufacturer instructions. It they don't specifically tell you to retorque the head fasteners then don't. If you feel the need to retorque your head bolts or studs then follow the same pattern as you did when you initially torqued them down, do one at a time, and, especially with aluminum heads, we would advise doing it on a cool engine.

[Dark_Ghost]

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[melinamoore373]

There are a few builds on here that utilize a water-air intercooler. The one here https://www.oilburners.net/threads/6-9-grenaded-new-6-9-build-underway.88410/#post-1070467 is one of the more creative/interesting ones I've seen, he's not using a typical IDI turbo though.

[Jerryparson]

I plan on running a water-air intercooler, and to use/piggyback off the engine cooling system for it. I'm planning on drawing water from near the oil cooler, running it through a heat exchanger, through the intercooler, and then back into one of the plugs on the water pump. I want to do it like this to eliminate a seperate cooling tank, electric water pump/wiring/ etc. I feel the engine water pump is more then capable of it, and with the additional heat exchanger, the coolant should be cool enough to work. The cheap 6.0/7.3 intercoolers won't fit or look good in front of my bus radiator, and I haven't been able to find a cooling stack that would work at a reasonable cost. here

[NickB]

Coolant from the engine isn't cold enough to intercool, you'll need to run a separate system with pump/reservoir/etc. If you really want to go air to water, take a look at the intercooler that IDiot used on ASmith's build for some insight. Link attached below. here

[calmsupplements]

A lot of your higher hp stationary gen sets use an air-water intercooler. As do all 2 stroke detroits that are aftercooled. IDK where they draw the water from, how cold it is, or any real specific details of them, but they do use engine coolant for it.

[nybble41]

Coolant from the engine isn't cold enough to intercool, you'll need to run a separate system with pump/reservoir/etc. If you really want to go air to water, take a look at the intercooler that IDiot used on ASmith's build for some insight. Link attached below. here

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