Cosworth cylinder head plugs
04-11-2009, 01:04 PM
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Cosworth cylinder head plugs
Hi, does anyone know what size is the two small oil blanking plugs on the front and the back of the 4x4 cosworth cylinder head because mine seems to leaking oil from them.
That's a pic of a 2wd cyl head and I am pointing the location of the plugs. Theese are oil plugs correct? Because the head after some days of use fills the area of the spark plugs with oil and the iol seems to coming from them. I replaced the cover gasket by the way with a new one in case that it was gaskets fault...
That's a pic of a 2wd cyl head and I am pointing the location of the plugs. Theese are oil plugs correct? Because the head after some days of use fills the area of the spark plugs with oil and the iol seems to coming from them. I replaced the cover gasket by the way with a new one in case that it was gaskets fault...
Last edited by ybturbo; 04-11-2009 at 01:29 PM. Reason: added picture
05-11-2009, 03:56 PM
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Defo NOT oil plugs, the oil galleries run along the sides of the head each side, can be clearly seen as have a blanking plug at each front and read end.
The plugs you point to will most likely be gas plugs used during the special cosworth patented casting process, to eliminate air bubbles/problems with porosity.
Put on a cometic gasket and say good bye to leaks from this area, which is very common.
tabetha
The plugs you point to will most likely be gas plugs used during the special cosworth patented casting process, to eliminate air bubbles/problems with porosity.
Put on a cometic gasket and say good bye to leaks from this area, which is very common.
tabetha
05-11-2009, 04:36 PM
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Defo NOT oil plugs, the oil galleries run along the sides of the head each side, can be clearly seen as have a blanking plug at each front and read end.
The plugs you point to will most likely be gas plugs used during the special cosworth patented casting process, to eliminate air bubbles/problems with porosity.
Put on a cometic gasket and say good bye to leaks from this area, which is very common.
tabetha
The plugs you point to will most likely be gas plugs used during the special cosworth patented casting process, to eliminate air bubbles/problems with porosity.
Put on a cometic gasket and say good bye to leaks from this area, which is very common.
tabetha
theese plugs, even at the smallest amount of oil entering that area are allways full of oil but I understand that this can be done by accident correct? What else can I do to solve this?
05-11-2009, 06:44 PM
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Another question; Is it possible for the cylinder head cover to wrap or something? Anyway last time I removed the factory gasket I checked it and it was on full contact with the faces... The head gasket is good , I mean it's not loosing water or loosing pressure so the head faces must be good... The problem area is located above number 4 cylinder.
Last edited by ybturbo; 05-11-2009 at 06:47 PM.
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