HELP! what can cause water to mix with oil
03-29-2010, 07:47 PM
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HELP! what can cause water to mix with oil just as the titles states, what are possible causes for this to happen?? i know that these things can cause this: head gaskets or
heads not torqued down right
but what else??
heads not torqued down right
but what else??
Last edited by enjoi355; 03-30-2010 at 10:40 AM.
03-29-2010, 08:25 PM
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Bottom line if you have water in oil the engine will need to have major work!
About the best you can hope for is a blown headgasket then you can pull the head that is leaking surface the head, replace gaskets intake exhaust and assemble.
One in a thousand you could retorque head and have it reseal but it won't last and even if it did you would never trust the car soooo
Sorry if the coolant system won't hold pressure that would be my guess.
Good luck
About the best you can hope for is a blown headgasket then you can pull the head that is leaking surface the head, replace gaskets intake exhaust and assemble.
One in a thousand you could retorque head and have it reseal but it won't last and even if it did you would never trust the car soooo
Sorry if the coolant system won't hold pressure that would be my guess.
Good luck
03-30-2010, 12:03 AM
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its cause i installed an engine that i just rebuilt, this thing doesnt even have a mile on it and probably less than 30 minutes worth of on time.... and water is getting mixed up with the oil, i asked to get ideas from you guys
im really leaning towards the threads of the bolts, or just a head gasket failure
i doubt the block deck is warped, it was milled
the heads were also milled (and the engine hasnt seem temps above 160 degrees so they shouldnt be warped))
when i torqued down the heads (arp head bolts) i went over them in 3 passes 30, 50, and then to 75 ft lbs (i called arp and they told me that should work)
i followed the proper sequence
i used thread sealer on the head bolts http://www.permatex.com/products/Aut...et_Sealant.htm hmmmmm after reading the descrition i think this might be it, but on the can it states thats its excellent for threads...
o and i used these head gaskets http://www.summitracing.com/parts/MRG-5716/
the wierd thimg about these was that they had no marking or anything to indicate which side goes up....
what do you guys think about all this??
im really leaning towards the threads of the bolts, or just a head gasket failure
i doubt the block deck is warped, it was milled
the heads were also milled (and the engine hasnt seem temps above 160 degrees so they shouldnt be warped))
when i torqued down the heads (arp head bolts) i went over them in 3 passes 30, 50, and then to 75 ft lbs (i called arp and they told me that should work)
i followed the proper sequence
i used thread sealer on the head bolts http://www.permatex.com/products/Aut...et_Sealant.htm hmmmmm after reading the descrition i think this might be it, but on the can it states thats its excellent for threads...
o and i used these head gaskets http://www.summitracing.com/parts/MRG-5716/
the wierd thimg about these was that they had no marking or anything to indicate which side goes up....
what do you guys think about all this??
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03-30-2010, 11:34 AM
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your right when you say that i should pull the heads off, i just want to know what i should be looking for or if i did anything wrong based on how i put the motor together
im really really leaniing towards the head bolt threads or the head gaskets
maybe i shouldve used a dedicated thread sealer
or i put the head gaskets on wrong
does anyone have any experience with those gaskets or what i used for thread sealer??
im really really leaniing towards the head bolt threads or the head gaskets
maybe i shouldve used a dedicated thread sealer
or i put the head gaskets on wrong
does anyone have any experience with those gaskets or what i used for thread sealer??
03-30-2010, 12:03 PM
#12
My father 8 years ago was one of those long shots.........
We bought Z28 with known coolant in oil, OK figured replace the gaskets and see what she does, no marks on the head gaskets showing coolant seeps.
Ok replace them and fire it up, sucks coolant down, WE ARE LIKE WTF????
Pull throttle body off and pull the bottom cover where coolant ports are.
F'in orange dextol ate the aluminum away where it runs under throttle bores so DO NOT OVER LOOK THIS. So yes it can happen and we just bypassed TB coolant and epoxied weak casting spot under TB. Installed the new 355 8 years ago and the damn thing still dosnt have 2000miles on it lol, garage queen for sure.
We bought Z28 with known coolant in oil, OK figured replace the gaskets and see what she does, no marks on the head gaskets showing coolant seeps.
Ok replace them and fire it up, sucks coolant down, WE ARE LIKE WTF????
Pull throttle body off and pull the bottom cover where coolant ports are.
F'in orange dextol ate the aluminum away where it runs under throttle bores so DO NOT OVER LOOK THIS. So yes it can happen and we just bypassed TB coolant and epoxied weak casting spot under TB. Installed the new 355 8 years ago and the damn thing still dosnt have 2000miles on it lol, garage queen for sure.
03-30-2010, 07:16 PM
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pull the valve covers,look on the low side you can see the water pooling if its the head bolts...mine did this one time...1 or 2 bolts were seeping water even though i used arp thread sealant... i drained the water and resealed,then it was all good
03-30-2010, 07:51 PM
#16
How much water is in the oil? If it is a lot I would doubt it be the head bolts. Anyhow, the sealer you used is for paper gaskets. You want this stuff, http://www.permatex.com/products/Aut..._with_PTFE.htm or ARP thread sealer.
03-30-2010, 10:13 PM
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thanks guys, i think it is the wrong sealer
should i take the head bolts off one by one and re do it or take the heads off and get new head gasket while im at it, the car doesnt throw any white smoke
should i take the head bolts off one by one and re do it or take the heads off and get new head gasket while im at it, the car doesnt throw any white smoke
03-31-2010, 01:13 AM
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Just do it the right way and take the heads off, chase all the threads, replace the headgaskets with some quality gaskets, and use some ARP thread sealant.
Also make sure the ARP headbolts are reusable.
Also make sure the ARP headbolts are reusable.
