Head gaskets blowing up..
Re: Head gaskets blowing up.. (BomexS13)
Usually, a head gasket problem is related to the engine running hot enough at some time to allow the head to warp. This is a very small amount of warpage we ware talking about here- about 15 to 50 thousandths of an inch- but it allows the head to not clamp down on the gasket evenly- and eventually combustion gasses or radiator pressure will leak by- and you have a blown head gasket. Abnormally high cylinder pressures from high compression, boost, or Nitrous can also literally "blow" a portion of the gasket out from between the block and head. It is very important that the head be dead flat, and tourqed to specs. I think it is best not to have a glassy smooth surface after milling a head- but to leave a small texture to the surface to help retain the gasket. Properly installed studs help too. On a car that blows them repeatedly, you're beating a dead horse til' you know why it is blowing them and correct it.
-
Luke
Bomex, since your question was already answered. I'd like to ask you one. What color is that blue? You have the hottest S13 i've ever seen. Shoot me an email if you can, thanks.
[email protected]
[email protected]
Re: Head gaskets blowing up.. (hbrown)
Thanks for the informative answer.hbrown wrote:Usually, a head gasket problem is related to the engine running hot enough at some time to allow the head to warp. This is a very small amount of warpage we ware talking about here- about 15 to 50 thousandths of an inch- but it allows the head to not clamp down on the gasket evenly- and eventually combustion gasses or radiator pressure will leak by- and you have a blown head gasket. Abnormally high cylinder pressures from high compression, boost, or Nitrous can also literally "blow" a portion of the gasket out from between the block and head. It is very important that the head be dead flat, and tourqed to specs. I think it is best not to have a glassy smooth surface after milling a head- but to leave a small texture to the surface to help retain the gasket. Properly installed studs help too. On a car that blows them repeatedly, you're beating a dead horse til' you know why it is blowing them and correct it.
I'll be getting an SR head and block for cheap. Thats the reason why he's selling it so cheap, is something like that need to be fixed? Sorry for the newb question
Re: (Luke)
If I remember correctly, its code B17. Daytona Blue of a 350ZLuke wrote:Bomex, since your question was already answered. I'd like to ask you one. What color is that blue? You have the hottest S13 i've ever seen. Shoot me an email if you can, thanks.
[email protected]