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[rich1987]

Right I've bin working on my car for a few years now and it stood awhile and I had blue smoke so I decided to change the valve stem seals, I got one the tools so I didn't need to take the head off, stripped it down not the inlet manifold tho, change the valve stem seals and 2 tapets as they where soft, I did make a school boy error and dropped a collet down an oil well luckily found it in the sump, put it all back together change the fitting on my sard fuel pressure regulator, turned it over a few times to get the oil round as I had to change the oil due to take in sump off, then when I started fine when it was cold the when warm just raving it abut the revs would come down really slow and rev up and down slightly on its own and it's getting hotter than normal, no milkyness in the filler cap or on the dipstick it was running completely fine the day before I did the work anyone any ideas?? Thanks

[Boostjunky]

Hunting is surely air leak or timing ?

[BOBFRST]

Id say more than likely air leak mate

CheeRS

BOBFRST

[rich1987]

I'm wondering if I got an air leek around the injectors, as ive bij checking with brake cleaner and if i spray under the throttle body changes the engine tone but can't find a leek so that what makes me think a injector mite be leaking air in also gonna check the timing in case I messed it up as I used the cam pully to turn the engine round to put each pistons tds

[BOBFRST]

If it changes behind the throttle body check all the gaskets on the inlet side, easy to pinch 1 & cause a leak or something isnt tightened properly

CheeRS

Rob

[rich1987]

Yeah its under the throttle body I thought is was the pipe that goes to the fuel pressure regulator but gonna take it all apart at the weekend and have a look just strange how it all started and all I did is change the valve stem seals

[ZetecsTurbo]

When changing the stem seals uve obviously disturbed a gasket somewhere, obviously you had to take the throttle body off? Maybe its the gasket on that? Not sealed correctly causing an air leek, easiest thing would be to get some gasket paper and make a new one

[rich1987]

I've taken the inlet manifold off and change every gasket and checked the injectors and out them back in place I've just started a new thread because I found that if I clamp the pipe from the breather to the inlet it runs perfectly, now when I took the inlet off I found loads of oil in 5 hem breather hole on the inlet as well, so does this mean there's something wrong with my breather or is there an underlining issue with my crankcase compression?? It is an aftermarket grs breather thanks

[ZetecsTurbo]

When you say 'pipe from breather to inlet' u mean to airfilter box not inlet manifold yes? There will always be oil coming out of the breather pipe its only small amounts but it builds up, best to fit a catch tank if you dont want the mess of it all the time.
Regarding the idle issues due to the breather, i read somewhere before that the original breather valve sometimes caused idleing issues if it broke or became faulty and needed replacing with a new one to solve it, has your breather got a 1way valve fitted to it? If you removed it did you put it back in the correct way round? (The breather should be releasing air from the block not sucking if that helps with the valve orientation)
Try doing away with the valve alltogether and see how it runs,
Failing that see if you can get an origional breather setup (cheeply) to see if that fixes it.
Strange one though buddy hope you sort it

[rich1987]

No it don't go to the air box it goes from the 2 inlet pipe into the breather I thought that was how it was standard so it reuses the gases?? It hasn't got a one way at all which I know it should be without it won't mess up the idling but I have run it without one so may of messed something up inside the engine, I'm wondering if my breather is allowing the engine to suck to much air in as it doesn't restrict the air flow at all, is it ment to restrict it??

This is what I have to do



This is a picture of my breather

Also I'm using a 1.8 serria rocker cover but that shouldn't make a difference thanks for your help guys hope can get this sorted

[ZetecsTurbo]

Sorry mate i cant quite picture where your breather is going to on the inlet, have you got any pics of the other end of the hose?
A breather is purely to let the crancase 'breath' so it releases any unwanted air pressure in the engine, i cant understand why yours is routed to the inlet..?
There are two breathers on the zetec engine one at the front of the block under exhaust manifold and one on the cam cover
Both of these should be routed to that black thing with the small filter on thats your oil catch tank.

Like a said can you show me the other end of the hose where it attaches too so i can understand what its doing?
Cheers