We took the head off...tested it for warping (negative) and replaced the gaskets. Prior to replacing the gaskets, there was a LOT of white smoke coming out the muffler along with antifreeze. Now...we replaced the head gasket and there is still a LOT of white smoke coming out of the tailpipe. Is this because of all the water that was in there from before the repair...or is something else wrong?
2006-11-29 06:57:02 · 9 answers · asked by Jamie J 3 in Cars & Transportation ➔ Maintenance & Repairs
When you said you tested for warping... what kind of test are we talking about? If this wasn't done by a qualified engine machine shop or if they didn't also magnaflux check the head for cracks... well....
I suspect you have either a cracked head or cracked block. Also, some vehicles have coolant running through the intake and/or exhaust manifolds. If so.. one of these could be cracked as well causing this problem.
Sorry.. but it sounds like the effort might have been wasted replacing the gasket. There is the possiblity that the head wasn't replaced properly using the proper torque sequences. Newer engines have very stringent sequences and processes the MUST be followed to get it to seal properly.
I'd put a compression checker on each cylinder and see where the leak is coming from.
Good luck!
2006-11-29 07:02:58 · answer #1 · answered by wrkey 5 · 3⤊ 0⤋
All of the coolant inside the combustion chambers were either cleaned during disassemble, or cleared during the first few revolutions of the engine when it was started.
You still have an internal problem. Possible crack in the cylinder head or engine block. Also, some intake manifolds have coolant passages, possible a crack here.
If coolant is getting into only one cylinder, when it fires, the water turns into steam, thus steam cleaning all of the components inside that combustion chamber. Check the spark plugs. If there is 1 exceptionally clean plug, this is the combustion chamber that the coolant is getting into. If 1 plug is wet, that cylinder may be misfiring because of the coolant. This will give you a starting point as where to look.
2006-11-29 07:06:07 · answer #2 · answered by Mad Jack 7 · 0⤊ 0⤋
It sounds like you're still leaking water into the combustion chamber. Any residual water should burn off within a few minutes of starting the engine. Did you tighten down the head in the appropriate sequence. (Typically center outward) and to the proper torque specifications?
Did you use new bolts for the head? Many vehicles use bolts that can not be reused because they lose their tensile strength and you need to use new head bolts.
2006-11-29 07:02:51 · answer #3 · answered by hsueh010 7 · 1⤊ 0⤋
checking the head for warpage is good having it exrayed to see if there ace cracks is also good (this is an idea) but i think that the problem is that you did not change the oil when you changed the head gasket and there is still watter (antifreeze in the oil) this is causing the white smoke....
hope that helped Good Luck......
2006-11-29 07:08:27 · answer #4 · answered by red 3 · 0⤊ 0⤋
You need to have the head magnafluxed. This will identify fine cracks not visiblew with the naked eye.....If this is negative as well you may want to have the block done....HOWEVER, are you still getting antifreeze in your exhaust or just the white smoke?
2006-11-29 10:02:57 · answer #5 · answered by hangin_in_out 2 · 0⤊ 0⤋
You may have a cracked block or a crack in the head that is opening up after it warms up. Did you have the head magna-fluxed? That will usually turn up a crack. Solution to this is to replace the head. If it is the block, replace the engine. Good luck.
2006-11-29 07:04:35 · answer #6 · answered by Doug R 5 · 0⤊ 0⤋
perhaps change your oil...my father told me when we suspected that my head block (did you check the head block, too?) had cracked to check the oil...antifreeze mixed in with your oil is one sign of a cracked head gasket and/or head block...maybe this old antifreeze/oil mix is left over from before the gasket change...
i had a 1994 ford explorer (she's gone now, head gaskets cracked twice in two years because of two separate radiator leaks)....
2006-11-29 07:03:49 · answer #7 · answered by s 2 · 0⤊ 0⤋
did you pressure check the head? it probably has holes. either replace the heads or do what I did, pour in some water glass, sodium silicate, a quart at the drug store is $14 :)
2006-11-29 07:01:03 · answer #8 · answered by Anonymous · 0⤊ 0⤋
possibly could be residue. did you have the head checked for cracks or just warpage
2006-11-29 07:00:14 · answer #9 · answered by D42D 3 · 0⤊ 0⤋