That sucks. Did you get the head checked for flatness - maybe just got warped and needs a skim?Finished up my head gasket install, adjusted valves, filled up the oil and coolant then started it up. Running great to my surprise, none of my hoses are leaking and it sounds like the valves are within spec, so I let it idle for a few minutes and warm up.
Notice a bit of white smoke from the exhaust that seems to get worse the longer it runs. Unfortunately it also appears the cooling system is building pressure as well as the hoses are very tight. So I shut it off after about 10 minutes.
Guessing this head is cracked somewhere, I have heard these are more prone to cracking than earlier 2F heads were. Find it strange that my head gasket would blow, head would crack and the radiator split open all within a couple minutes of each other. Don't know why I seem to have the worst luck with Toyota engines.
Back in the 90s I managed to crack another another head with very similar symptoms, that engine was a 76 2F that had a shaved F head installed. Took a bit to diagnose, found exhaust in the coolant and at the time I just replaced the head to fix it.
This time around I have an 87 2F in the same FJ40. It has flat top pistons, rings and valves seal well, head gasket is new and I know I torqued it correctly, no water in the oil or vice versa. As soon as I get some time I'm going to pull the plugs and check for moisture then do a compression test.
Wondering what my next step is. Doubt heads can be repaired so it seems I need to find another yet again. Later 2F heads seem to be hard to find and expensive, are they my only option? Is it possible to swap an earlier 2F or possibly a later F head onto my 87 block? Appreciate any insight,
was truly hoping to get this 'ol 40 back on the road soon. Searched but can find only limited information on this topic. Thanks!!!
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I'd run a compression test now and see which cylinder is causing the problem - at least you'll know where to look.
Good luck