Did you do a compression test first to determine that it is a head gasket
did you check the head for cracks
a common problem with DIY mechanics is that they do not clear out the stud holes and clean the threads in the block so correct compression of the gasket or in reality , stretching of the head stud, is not achieved
did you have the head machined flat before replacing the first head gasket
Did you replace the radiator as it could have blocked cores
What ignition timing setting have you set it on
SOURCE: intake and head gaskets replaced twice. Once at
Have your cylinder heads checked for cracks (aluminum get dye checked, iron get magnafluxed) Also have them checked for warpage. Make sure water passage openings are not "etched" providing a pathway for coolant migration. Problem may also be your assembly technique...If you are making a mistake and repeating it every time you will always get the same result. When torquing head or manifolds divide the final value by three and following the proper pattern use those values and go over it three times increasing by one third each time. This is especially important with aluminum as it helps spread the load better. Also with aluminum, make sure you use a flat washer under the head of every bolt. On race engines I will often run hot water through the block after final tightening, then go over bolts one more time, as most can't be reached after manifolds are installed. You don't need to go that far but it shows just how critical assembly is.
If heads are cracked discard them if warped they can be surface ground or fly cut to regain a level surface. Some shops can also heat them and straighten them. (not iron though) Each time heads are cut it increases compression and on "v" engines alters the intake angle a bit. On inline engines it will change timing belt or chain tension as well. (pulleys will be closer together)
newer heads are not as thick in the deck area either and cutting will remove a degree of strength and can make them more vulnerable to cracks and warpage in the future so don't go too far with that. There are many machine shops that do this work. It requires expensive machines and is beyond the scope of most dealers and general repair shops.(shops send their work them).
Good luck!
SOURCE: I have a Mitsubish canter with 4D 35 enginenow the
Hi! I believe you may. Just pay attention to the engine support brackets if it will be perfectly fit. Hope this helps and good luck!
SOURCE: i have a 2000 alero which is running hot i have
Sometimes stop leak made for heads are successful for awhile. But sooner are later the head gasket will need to be replaced and head deck worpage will need to be checked.
SOURCE: why overheatin since changed water pump, hoses, thermostat and head gasket
Clean or have a radiator shop clean or replace your radiator core.
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