Add to that! If you don't have the original airbox then simply remove the induction and see if it improves, nothing on the throttle body will be fine. Just don't let any flies or dirt into your TB 
Hi mate,
Thanks for the input, I knowi was planning on replacing it after head transfer, just all money has been diverted into trying sort this out,
Flies wise yea lol there's loads of wasps around here hehe
but on a serious note lol, I have tried it with the induction kit off and no difference mate.![]()
Good ideabut I've had this on for a good few months even done rhyl and back around 6times on this setup on old head, and never this trouble,
Just seems abit odd this start now? and even without induction kit mate it still runs the same, ive give it welly at idle without it and it doesn't help in any way, engine still stumbles and misfires, sorry be negative
last time hg went, after fixing it with that induction on, first turn of key it was purrrring well apart from the knocking on camshaft, but exhaust was steady puuurrrri miss it.
ps the pistons were left silver clean before other head went on. they did have carbon build up, even doh the valves and stems were white?
i will try it, but i can honestly say before the transfer the hg was perfect no coolant loss etc no signs of dodge hg, the only reason ive distured the engine is to change the head because mine was kncocking on the camshaft that's the only reason, due to bearings by the looks of it, but i'll try it![]()
I'm sure HG is fine but I bet your pistons are coated in carbon and throttle body dirtied up
If you want it perfect. Take the head off. Clean the pistons by hand. Get that induction off or replace the filter bit. That will keep it good and if it goes the same again THEN you should start looking for causes but I reckon it's all down to the induction.
I'm sure I blew my head by induction being crappy, overheating and pushing the car too much
have you done a wet and try compression test ?
also did you clear the sump out of any debris that could of been from that chewed up bearing
Ash
If your driving like a grandaddy then than causes carbon build up! At this rate you'll pull the head off and have a perfect cylinder shaped block of carbon!
Give it a clean, sort the air intake out and rag the ******** off her! It's just like a woman! Loves to be ridden hard once in a while
Everything points to it!
That oil is from the cam cover its too high up to be from the head gasket (leaks flow down not up).
Take a sample of coolant and have it tested for combustion products and petrol. Any good garage can do the test. If it contaminated the HG has gone.
You've also not confirmed the O2 sensor is any good. If its shot the engine will run rich and roughly.
Driving like that for 14 miles won't clear anything. It needs cleaning out or redex in constantly and driven like that for few 100 miles.
If you're changing the head take a look at the pistons, give them a real good clean