Blown head gasket or something else?
04-29-12, 01:47 PM
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Blown head gasket or something else?
I get a lot of white smoke at start up but goes away as car is idling. Never had white smoke while driving and never overheats. When I start the car after driving a while there is no white smoke. White smoke has a fuel smell to it. Does this sound familiar to any of y'all?
04-29-12, 02:22 PM
#2
could be a leaking injector that will pool fuel in the cylinder, might also be a valve seal going. when the seal starts to deterierate it will cause oil to seep past when it is cold and upon startup you will see a puff of smoke.
is this a cold or hot engine concern?
is this a cold or hot engine concern?
04-29-12, 02:25 PM
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It only happens on cold starts and when not started for a couple hours or so. Temp never gets past half way mark. If its a valve seal how crucial is that to fix? Is it a must fix now?
04-29-12, 02:29 PM
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valve seal will continue to cause oil to seep and if you dont keep on top of it there is the possiblility of consuming enough oil to blow the motor.
so if that didnt scare u u could always just check the oil level. valve seal replacement is an indepth job though so i would take the later advice.
so if that didnt scare u u could always just check the oil level. valve seal replacement is an indepth job though so i would take the later advice.
04-29-12, 02:33 PM
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valve seal will continue to cause oil to seep and if you dont keep on top of it there is the possiblility of consuming enough oil to blow the motor.
so if that didnt scare u u could always just check the oil level. valve seal replacement is an indepth job though so i would take the later advice.
so if that didnt scare u u could always just check the oil level. valve seal replacement is an indepth job though so i would take the later advice.
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05-01-12, 06:59 AM
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prob. looking at a valve stem seal issue based on your description of the symptoms. it will not consume tons of oil but a few drops +- every evening there fore keeping track of the oil( not going to lose a qt. in a day). check it atleast once a week and you should be fine. This could lead to fouled plugs later down the road and the leak will slowly get worse. This is all based on the info you have provided and is only my opinion of a likely possibility.
05-04-12, 06:05 AM
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i got quoted 800-1200 to do the valve seals in my car. i decided if i was going to pay that much JUST for labor i might as well get a rebuilt head and put it in.
this is what we found when i decided to replace my valve seals.. but ended up replacing the head. good thing i made that choice:
but like you said, it only happens on cold start ups and sometimes after restarting the car after coming to a quick stop to get gas. it would smoke WHITE! next time you go to start your car and you know itll smoke. as soon as you start it run back to smoke and smell it. if it smells like gas or oil its the valve seals.. if it smells sweet then you have a headgasket issue
this is what we found when i decided to replace my valve seals.. but ended up replacing the head. good thing i made that choice:
but like you said, it only happens on cold start ups and sometimes after restarting the car after coming to a quick stop to get gas. it would smoke WHITE! next time you go to start your car and you know itll smoke. as soon as you start it run back to smoke and smell it. if it smells like gas or oil its the valve seals.. if it smells sweet then you have a headgasket issue
Last edited by bryan767; 05-04-12 at 06:11 AM.
05-04-12, 06:51 AM
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i got quoted 800-1200 to do the valve seals in my car. i decided if i was going to pay that much JUST for labor i might as well get a rebuilt head and put it in.
this is what we found when i decided to replace my valve seals.. but ended up replacing the head. good thing i made that choice:
^^^^^^^^^^^^^^many years of poor oil changing schedule^^^^^^^^^^^^^^^^
but like you said, it only happens on cold start ups and sometimes after restarting the car after coming to a quick stop to get gas. it would smoke WHITE! next time you go to start your car and you know itll smoke. as soon as you start it run back to smoke and smell it. if it smells like gas or oil its the valve seals.. if it smells sweet then you have a headgasket issue
this is what we found when i decided to replace my valve seals.. but ended up replacing the head. good thing i made that choice:
^^^^^^^^^^^^^^many years of poor oil changing schedule^^^^^^^^^^^^^^^^
but like you said, it only happens on cold start ups and sometimes after restarting the car after coming to a quick stop to get gas. it would smoke WHITE! next time you go to start your car and you know itll smoke. as soon as you start it run back to smoke and smell it. if it smells like gas or oil its the valve seals.. if it smells sweet then you have a headgasket issue
Good luck!!!!!
05-04-12, 07:14 AM
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Send the old heads to the machine shop get them hot tanked and surfaced change the seals and guides, bead blast the valves confirm straight an resell them to recoup some of your money.
Just a suggestion.
Just a suggestion.
05-04-12, 07:53 AM
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i used a 2jzgte headgasket and arp headstuds 
and retorqued the head after 500 miles. i sold that head already to a friend whos actually building it. my new head was 350 bucks but i had to get it machined and tanked (it had some oil still in it, but it was clean). runs better then ever and no puffs of smoke 
and retorqued the head after 500 miles. i sold that head already to a friend whos actually building it. my new head was 350 bucks but i had to get it machined and tanked (it had some oil still in it, but it was clean). runs better then ever and no puffs of smoke