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Originally Posted by Justin_Luhrs
If your rings are passing oil as a result of an overheat... your heads are almost assuredly warped.
Rings are steel, and lose spring much less quickly than the time it takes to warp your aluminum heads. If the steel bought it, the aluminum did too.
If they are passing oil due to age, well, the check procedure is the same anyway.
Check your head carefully with a steel rule at all angles across the sealing surface. If you can see a discrepancy, it really needs to go to the shop. If not, it probably still needs to go to the shop, but your labor is cheaper than theirs, and if it is too warped, the new gasket will just leak or blow again. Head gaskets not very expensive. Another thing to remember, is that your head bolts stretch (regardless of if they have stretch designed into them) and should be replaced and torqued in exactly the manner prescribed with your new gasket.
At so many miles you will need valves and guides with your dye and grind. Not cheap.
I still have my first car, it's on its third engine and has 240K miles. But I can let it sit for 2 months, get in and tap the gas twice and she starts right up.
I sympathize with your wish to keep the car, if you decide you want to do so, I'd follow the advice you see here. Get the block checked or buy the tools to check it, it's easy to do (and you can never go wrong buying tools), and get the head fully redone at a good shop. You'll smile everytime she manages to start I'm sure.
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Up until the car overheated, the engine ran beautifully. On the way home after the event, it also ran great. I have not used it since.
If I don't want to spend many hundreds of dollars, would it be good enough to have the head checked for warpage and resurfaced and then installing it back with fresh bolts and gasket, or am I potentially risking a terrible situation by not inspecting the valves? Remember, I dont see me keeping the car for a very long time.
I have an 330i already and I kept my 190E as my second car until we have kids in a couple of years and get a wagon. I was actually considering junking the 190E (aftyer the overheat) and getting a 94/95 E320 wagon.
I'm just not convinced on spending several hundred dollars on the head job. But if you guys think there is too much risk in leaving the valvetrain unattended, then I will do it I guess.
Thanks for all the help guys.