valve covers
Thread Starter
5th Gear Member
Joined: May 2006
Posts: 2,170
From: Texas
valve covers
so i have these "289 powered by ford" valve covers on now, but i want something a little different, i was thinking about these trick flow ones cuz they give it a "racey" look even though its mostly stock[8D]
problem is, it says for race use only because a hole has to be drilled for the breather.....what would happen if i didnt do that
i have it now BTW.
problem is, it says for race use only because a hole has to be drilled for the breather.....what would happen if i didnt do that
i have it now BTW.
Thread Starter
5th Gear Member
Joined: May 2006
Posts: 2,170
From: Texas
RE: valve covers
its the shiney thing on the valve cover [8D]
I think those valve covers would look really good on my motor (not a chrome fan, as you can tell i have the natural finished intake and headers so i think they would pair up nicely
)
I ♥ Acer
Joined: Oct 2004
Posts: 17,565
From:
RE: valve covers
ORIGINAL: EmperorOfChicken
so i have these "289 powered by ford" valve covers on now, but i want something a little different, i was thinking about these trick flow ones cuz they give it a "racey" look even though its mostly stock[8D]
problem is, it says for race use only because a hole has to be drilled for the breather.....what would happen if i didnt do that i have it now BTW.
so i have these "289 powered by ford" valve covers on now, but i want something a little different, i was thinking about these trick flow ones cuz they give it a "racey" look even though its mostly stock[8D]
problem is, it says for race use only because a hole has to be drilled for the breather.....what would happen if i didnt do that
i have it now BTW.
1st Gear Member
Joined: May 2007
Posts: 134
From:
RE: valve covers
Hello.Are you asking what would happen if you just left them closed, as in don't drill them? If yes, that would not be such a great idea for a car that you plan on driving on the street. The eventual result would probably be a fire in the crankcase. The purpose of a pcv valve is to ventilate the crankcase. I guess that's why they call it a Positive Crancase Ventilation valve.
Before the fire , the symptoms would be really, really excessive oil consumption due to the pressure build-up on top of the heads and below the pistons, which would then turn into oil leaks when the pressure build-up blows a gasket or a seal somewhere, and eventually there would be just enough blow-by gas accummulated in the crankcase under the right conditions to ignite itself. That's why thet call them trickflow. The trick is that flow of flammable gases heading for your crankcase.
Are you asking what would happen if you just left them closed, as in don't drill them? If yes, that would not be such a great idea for a car that you plan on driving on the street. The eventual result would probably be a fire in the crankcase. The purpose of a pcv valve is to ventilate the crankcase. I guess that's why they call it a Positive Crancase Ventilation valve.Before the fire , the symptoms would be really, really excessive oil consumption due to the pressure build-up on top of the heads and below the pistons, which would then turn into oil leaks when the pressure build-up blows a gasket or a seal somewhere, and eventually there would be just enough blow-by gas accummulated in the crankcase under the right conditions to ignite itself. That's why thet call them trickflow. The trick is that flow of flammable gases heading for your crankcase.
I ♥ Acer
Joined: Oct 2004
Posts: 17,565
From:
RE: valve covers
ORIGINAL: VeronicaScz
Hello.Are you asking what would happen if you just left them closed, as in don't drill them? If yes, that would not be such a great idea for a car that you plan on driving on the street. The eventual result would probably be a fire in the crankcase. The purpose of a pcv valve is to ventilate the crankcase. I guess that's why they call it a Positive Crancase Ventilation valve.Before the fire , the symptoms would be really, really excessive oil consumption due to the pressure build-up on top of the heads and below the pistons, which would then turn into oil leaks when the pressure build-up blows a gasket or a seal somewhere, and eventually there would be just enough blow-by gas accummulated in the crankcase under the right conditions to ignite itself. That's why thet call them trickflow. The trick is that flow of flammable gases heading for your crankcase.
Hello.
Are you asking what would happen if you just left them closed, as in don't drill them? If yes, that would not be such a great idea for a car that you plan on driving on the street. The eventual result would probably be a fire in the crankcase. The purpose of a pcv valve is to ventilate the crankcase. I guess that's why they call it a Positive Crancase Ventilation valve.Before the fire , the symptoms would be really, really excessive oil consumption due to the pressure build-up on top of the heads and below the pistons, which would then turn into oil leaks when the pressure build-up blows a gasket or a seal somewhere, and eventually there would be just enough blow-by gas accummulated in the crankcase under the right conditions to ignite itself. That's why thet call them trickflow. The trick is that flow of flammable gases heading for your crankcase.
) Are you going to be able to make it up to my house on the 4th of August,and show your car in the MOCA Ford show? How's your golf game?
5th Gear Member
Joined: Sep 2006
Posts: 3,302
From: Northernish Eastish Central Texas
RE: valve covers
You need a breather and Positive Crankcase Vent system in order to keep the air pressure normalized inside the motor. The PCV routes the oil/gas laden air back into your intake so it can be burned off.
Not having your valve covers vented will cause air to build up in your valve train area and it will explode*....
(* just kidding)
Not having your valve covers vented will cause air to build up in your valve train area and it will explode*....
(* just kidding)
I ♥ Acer
Joined: Oct 2004
Posts: 17,565
From:
RE: valve covers
ORIGINAL: JamesW
You need a breather and Positive Crankcase Vent system in order to keep the air pressure normalized inside the motor. The PCV routes the oil/gas laden air back into your intake so it can be burned off.
Not having your valve covers vented will cause air to build up in your valve train area and it will explode*....
(* just kidding)
You need a breather and Positive Crankcase Vent system in order to keep the air pressure normalized inside the motor. The PCV routes the oil/gas laden air back into your intake so it can be burned off.
Not having your valve covers vented will cause air to build up in your valve train area and it will explode*....
(* just kidding)
5th Gear Member
Joined: Sep 2006
Posts: 3,302
From: Northernish Eastish Central Texas
RE: valve covers
I think V has the most appropriate explanation on the need to vent the gasses. I don't know about a fire, but I can see the fuel laden fumes causing sludge and deteriorating the crankcase oil quality.
The 5.0s that those valve covers are meant for vent through the back of the intake manifold.
The 5.0s that those valve covers are meant for vent through the back of the intake manifold.