coolant in the oil pan

[general's servant]

anyone out there who has been down this road. I used stock(victor) intake gaskets with rtv on both sides of the gasket. Intake has been modded for vortecs(they used a aluminum plate about 3/16 thick all around). Gained about half-a-quart in the pan, steam blow out the dipstick after my test run.What has everyone been doing to seal this up.DIG if your out there you said that sometimes they doubled gasket it too seal. what kind of gasket.Is it just better to get this remodded to fix it right.who out there does it.turnaround has to be kinda quick.my GN is puffing smoke through the valve covers and is dripping oil bad(been tired for a long time now) I thought I just had a vacuum leak thru the TB. :roll: Matt B fixed me up with that problem :tup: I think If i can work this intake out I can start fixing what I already know is wrong with the truck.

 

[bezerk]

Re: coolant in the oil pan

did you put RTV around your intake and coolant ports? i bet your coolant ports are leaking

 

[bezerk]

Re: coolant in the oil pan

ohw yeah..remove the lower intake. and get felpro 1203's (lower intake gaskets) and use RTV around the ports on both sides.

 

[dgoodhue]

Re: coolant in the oil pan

anyone out there who has been down this road. I used stock(victor) intake gaskets with rtv on both sides of the gasket. Intake has been modded for vortecs(they used a aluminum plate about 3/16 thick all around). Gained about half-a-quart in the pan, steam blow out the dipstick after my test run.

If the intake has been welded most use a different gaskets than the stock victor gaskets. Commonly used are Felpro 1203 and 1268. You also need to plug some of the unused Vortec bolt holes going to coolant. Page 2 of this thread talks about this.


http://www.syty.net/forums/showthread.php?t=57066&page=2&pp=15&highlight=

 

[general's servant]

Re: coolant in the oil pan

dgoodhue: the aluminum plates were screwed on each side of the intake.countersunk screws(2 ea.) on the head side of the intake. Nothing welded. I didn't notice the unused bolt holes till after the intake was installed so I mixed up some JB weld and poured it into the front open holes on the heads.Didn't see any leaks there


Bezerk: yeah i put rtv on both side of the gasket. intake ports and coolant passage

 

[MikeRenz]

Re: coolant in the oil pan

dgoodhue: the aluminum plates were screwed on each side of the intake.countersunk screws(2 ea.) on the head side of the intake. Nothing welded.

is this a stock intake? Do you have pictures of the work that was done, or of these aluminum plates?? who did the work?

 

[Ry368]

Re: coolant in the oil pan

If you are putting coolant in the pan it is not your intake gaskets....you either have a bad head head gasket or a cracked head in the combustion area! Did you do a leak down yet? When your truck is running pop the radiator cap and see if the coolant bubbles when you rev it up a few times!

Also if it were the intake gaskets it would just put coolant in the combustion chamber to be expelled through your exhaust and would not go into your pan.

Leak down test asap!!!

 

[Ty 1885]

Re: coolant in the oil pan

Coolant CAN leak from the bottom of the intake water passages to the lifter galley into the oil pan.

 

[bezerk]

Re: coolant in the oil pan

If you are putting coolant in the pan it is not your intake gaskets....you either have a bad head head gasket or a cracked head in the combustion area! Did you do a leak down yet? When your truck is running pop the radiator cap and see if the coolant bubbles when you rev it up a few times!

Also if it were the intake gaskets it would just put coolant in the combustion chamber to be expelled through your exhaust and would not go into your pan.

Leak down test asap!!!

trust me..intake gasket!! if the coolant passage that is being blocked by the lowerintake isn't sealed. it would leak right into the block. not into the chambers

 

[Ry368]

Re: coolant in the oil pan

Coolant CAN leak from the bottom of the intake water passages to the lifter galley into the oil pan.

Agreed, but it won't pressurize the crank case like a head gasket would! :tup:

steam blow out the dipstick after my test run.

 

[bezerk]

Re: coolant in the oil pan

Agreed, but it won't pressurize the crank case like a head gasket would! :tup:

if he has about 3x as much fluid in the whole thing, the pistons will be working like a pump causing more pressure in the crankcase, cause fluid can't compress or breath like air would.
and if it leaks it can leak in all kinds of way. into the chamber into the lifter gallery.

 

[bezerk]

Re: coolant in the oil pan

steam blow..the oil gets hotter than coolant would. so steam might be steam..no blow by smoke

 

[Ry368]

Re: coolant in the oil pan

steam blow..the oil gets hotter than coolant would. so steam might be steam..no blow by smoke

I know what blow by is...thanks..lol! I just sounds like he's got a head gasket out to me, since it sounds like he just did the vortec conversion aswell......i'd be doing a leak down!

I wanna see these aluminum plates.......I think mccoy did some of these intake to head plates waaaay back in the day?

 

[general's servant]

Re: coolant in the oil pan

Hey guys all this response is giving me the energy to pull the intake off right now.I do believe that the intake was modded by Mccoy. What i don't understand is why the unused vortec holes wern't filled in by them? I already pulled plugs looking for wet ones and 1 &4 were wet.#4 plug wire tore into two when trying to remove from the spark plug.(has to be because of misfiring)the heads were checked and my machinist I used went over them twice filling cracks inbetween the valve seats and also a crack in the intake port on one head. Instead of just replacing the heads which would have been cheaper,it was the heavy porting already done to it is why the machist wanted to work them.I dont know how to send pictures so will someone post there e-mail and I send it to them so everyone can view.All i need to do is drain the rad and unbolt it. everything else is done

 

[bezerk]

Re: coolant in the oil pan

if you want to be sure. pull the intake. and make little block off plates for the coolant ports in the head. so you can block them off. then pressure the system a bit. to double check your headgakstes

 

[Ty 1885]

Re: coolant in the oil pan

When a cast iron head cracks, it is a good idea to trash them!
The problem is that it is near imposible to grind ALL of the crack, then the fill will have a hard time to expand and contract the same rate as cast iron causing it to crack/leak.

 

[DynaGlide]

Re: coolant in the oil pan

Cast iron needs to be filled with something that is ductile enough to change with the expansion/contraction of the iron. Pure nickel filler rod is something that one certain turbo manufacturer uses to weld on cast iron housings. I would however suggest not welding on heads, and replacing them if they're bad.

I hope this works out for you. It'll suck if you have to replace a head and absorb the cost of porting again.

 

[general's servant]

Re: coolant in the oil pan

intakes off anyone want to see these plates,need a e-mail address. fel pro 1203's came in the mail today.would you guys rtv both sides of the gasket. Not sure if coolant was leaking between the plates,should I remove the plates and rtv them as well.single gasket or double stack em,

 

[syclone0209]

Re: coolant in the oil pan

did you see any sign of leakage at the manifold

 

[syclone0209]

Re: coolant in the oil pan

send me a good pic of the work they did to mount the plates to the manifold. if the holes or whatever they did to mount them can be welded up without a problem then we need to swap manifolds and get it converted the right way or i can have yours done here in tulsa. i will go to the machine shop tomorrow and ask for the price again. or like i said in my pm. i am selling my vortec modded and prof. ported lower and stock upper since im converting to a carb/efi intake setup. $500 for the set. i have some pics of the work if interested.