General Maintenance & Repairs - LQ4 Maintenance
08-12-2012, 12:17 AM
Hey all. I am doing an engine swap on my Jeep Wrangler and chose the 6.0L LQ4 (out of a 2002 Sierra 2500HD) for my swap. Anyway, the engine has approximately 110K miles on it and has been sitting for about a year. If you were in the same situation, what would you change? The fit will be a bit tight, so I'd like to do anything that is easy and cheap enough to do while I have it on a stand rather than having something crap out on me after I've installed the engine. I figure I'd at least do the water pump, but what else would you recommend?
08-12-2012, 08:55 AM
Head gaskets,lifters,timing chain, and oil pump. Get all new gaskets for everything while you're at it.
08-12-2012, 08:56 AM
Oh and pour some oil down each spark plug hole and turn it over by hand a few times every so often.
08-13-2012, 12:00 AM
Not sure about the above recommendations but I have my own
Head gasket should be fine as long as it hasn't been sitting with the coolant lines un covered. Always a good idea to replace the water pump
I would replace the rear main seal and the oil pan gasket. They tend to dry uP after sitting for a while. When you pull the pan you will get an idea of how neglected the engine was or wasn't by the amount of sludge down there
08-13-2012, 03:59 AM
The engine has been sitting covered and empty of all fluids. I am putting in an F-body oil pan, so I will have to do oil pan gasket and might as well do oil pump anyway...and I suppose that I have to remove the timing cover to get to the oil pan anyway, so the chain would also be an obvious choice.
08-13-2012, 12:23 PM
I'd recommend Marvel Mystery Oil if you go for pouring oil into the spark plug holes b/c it'll still combust w/o fouling your plugs.
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