Sam Posted March 23, 2006 Posted March 23, 2006 What is the best way to block up the hole where the original oil breather fitted on the zetec engine? Is this the best thing to do? Quote
Peter M Posted March 23, 2006 Posted March 23, 2006 There are two breathers on a zetec, one on the cam cover and the other is the crankcase breather . As far as I know neither should be blocked off. Quote
Animal Posted March 23, 2006 Posted March 23, 2006 I had a metal plate made and blanked off the crancase breather and bought a small filter for cam cover. No probs so far. Animal Quote
Jack T Posted March 23, 2006 Posted March 23, 2006 Sam as Peter says there are two breathers, if you are going for SVA i would just vent them both to atmosphere by running pipe from each to the bottom of the engine bay, Or you could connect these pipes to a suitable catch tank (this will be required for hill climbs/trackdays etc.) Jack Quote
Guest Posted March 24, 2006 Posted March 24, 2006 On the westfield supplied ones they have a ball valve on the crank case which is vented to air (no additional pipe or anyhing) Since the area around it stays clean, I assume it does not opn very often! Regards, John Quote
Guest Posted March 24, 2006 Posted March 24, 2006 mine is blanked off on the crank with a plate , the one on the cam cover goes to the catch tank ,my catch tank also has a vent to atmosphere. Quote
Gavin Posted March 24, 2006 Posted March 24, 2006 I have mine both connected to a catch tank, I wasn't sure about blocking it off as I thought it must of been put theere for a reason. Quote
perksy Posted March 24, 2006 Posted March 24, 2006 Remember reading somewhere that Westfield didn't recommend the breather exit from the block being blanked off, due to the risk of the crankcase pressure causing the rear crank seal to leak Quote
Sam Posted March 24, 2006 Author Posted March 24, 2006 If i do fit the orginal breather to the crank case where do i run the hoses. I know i can go to a catch tank but someone said you can run the hose to the bottom of the engine bay...?? Quote
perksy Posted March 24, 2006 Posted March 24, 2006 If i do fit the orginal breather to the crank case where do i run the hoses. I know i can go to a catch tank but someone said you can run the hose to the bottom of the engine bay...?? on mine i have a small chrome filter attached to the cam cover and on the engine block, a piece of black hose off the Ford breather 'looped' facing down to the road. (i don't have a catch tank) Quote
perksy Posted March 24, 2006 Posted March 24, 2006 Will take a couple and post 'em Just getting it ready for Totalkitcar tomorrow... Quote
Thrustyjust Posted March 24, 2006 Posted March 24, 2006 I believe that if there is an engine breather fitted then make use of it.The crankcase one has a spring and plate in the breather to only allow pulling fumes on vacuum over run on a standard engine.You can like others and me,remove the pipework and fitting and run a piece of 1/2 inch hose into it.This will leave it the same diameter to the catch tank as Perksy shows above.I used to have a piece of steel pipe like Nikpro,but its internal bore is only about 10mm,so best to leave it off and go the 1/2 inch to the tank.I piped the top head one to the tank too.A friend who has a garage,says that he has seen problems with standard road zetecs,weeping oil and is cured by using the breathers or in his case cleaning them out. Quote
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