...spark plug out of cyl 1. Smashed to smithereens....
Jeez mate... you ain't having a good time of it are you....
Another possible failure is that the valve has separated which can also happen... (they are 2 piece)
One thing I have noticed in the first pic after the plugs is the other head face down on the deck... At TDC there are valves proud of the heads surface... if you have done similar with the new head then its also possible you have bent a valve or two and this would have contributed to the failure... just s thought mate...
Hope its not too bad when you get the head off
<tuffty/>
also in your sig you say 3inch dwon pipe where is it?? std fitted to your car by looks of it
That's a sad tale.
I was all ready to hear how well it was running
Have you checked the collets then as you may have dropped a valve. What are the rest of the valves like.
Fairplay Welly youre not having much luck recently il drop that yellow into manny this week sometime least you can bang that in
fecking ****!!
hope the guys who done your head are the decent kind and dont **** you around
to be fair they will probably see the rage on your face and bend over backwards for ya lol
Its a dame shame that
If all the timing was right as you said then a valve wouldn't snap off like that? unless it was sticking in the guide thus keeping the valve open when the piston came up?
That reminds me actually, I wanted to share with you the cause of my lack of oil pressure.
Turns out that where the oil strainer bolts to the oil pump there are 2 very slightly different sized bolts. Both 10mm and both look like sump bolts. However, one is 2-3mm smaller than the other.
One of the threads winds into the actual oil pump's casing. If you use the long one in this hole....like I did, you WILL FUBAR your oil pump as the tip of the bolts will jam the gears.
Trap for new players - you wouldn't know without taking the pump apart - which we did.
Welly's helpful tip for the day....
Your having no luck are you welly. How did you time the engine when you put the head back on. You may have lost a collet which has dropped a valve or might not have timed the engine correctly and got piston to valve contact.
When you say the engine doesnt rotate by hand, does it go so far and wont rotate anymore. If so, I had this problem on a race engine we got and in uni and it was something really stupid, the cams were the wrong way around so the valve on a cylinder were fully open at TDC. Something to think about as its easily done but saying that the engine wouldnt idle up to temp.
Does the new head have the same valve lift as the one it replaced.
If you had jamemd the oil pump gears with that wrong bolt, but the engine turned, how did it manage this?
something else snapped? chain driven off crank. If motor turned over but oil pump was jammed, something must have sheared off
odd the head has gone off the valve, was expecting to see the stem sat down with it, and the collets still secured but snapped off at the lowest collect groove..
hydraulic followers not pumped up too much jacking open the valve?
struggling to think of cause if the valve did'nt snap at the collet groove..
heads fallign off these is not unheard of.. they are not strong valves
Agreed, but I can't see any other cause for it to be honest. If it was a hydraulic issue I would of thought it would of affected more than just that one valve. It's deffo not timing. It must just of been a weak valve, what other explanation is there?unexplained failure tho..
Hmmm
I've got spares mate, but thanks anywayI've got a set of std pistons if you need any (all have been hit by valves but have been inspected and are fine) £50 delivered
Welly, what induction kit you useing, some sort of HKS filter, looks mint lol.
I tested a spare cone filter whihc is the same as those 2, using small particles of dirt and a dyson, seemed to do pretty well! I grant you foarm filters aren't the best for smaller particles, but they flow very well. Swings and rounabouts. Been using it on my A3 for ages, and the S3 up untill now with no issues.from what i can tell they really dont filter that well tho!
No - some Ali Benn Singh make mate. No idea who actually makes itVery nice, so it is HKS then mate?