rough idle \white smoke

[bazzaa]

advice wanted had new water pump fitted next day i drove 70 milles fine no problem.parked up went to start 4 hrs later van started but rough iddle pouring white smoke out the exhaust .help please

[King Dick]

Good Morning Bazzaa i to do share the same fault... i have changed the fuel filter and housing .. i changed the housing as the hand primer did not deliver but the new one does... i have replaced the timing chain,tensioner with upgraded one, all plastic guides,new front cover ,and new water elbow gasket ,crankshaft gasket, and crank senor as it was stuck solid and i had to unbolt and pull gearbox back to remove as i snapped it, wiggling it (trying to).
Long and short is i was driving along and my engine went very loud too like a tractor engine but it drove along with a trail of pure white smoke... after being able to get a finger between the timing chain and lower right guide i thought it may be the chain. the upper right guide had broken on its top edge but the chain was still tight here.
I spent nearly £400 on ford parts and £80 on a kit to correctly pin it up. imagine the words and how i wanted to throw a gallon of petrol over it when i still had the same racket and smoke.

I cracked of the fuel injection nuts on top of injecters no 1 was a right b****** i slipped an managed to skin my finger which made me an even happier fella then it poured down i was not having much luck.
When cracking of number 4 inj (rear) it made not a bat of diffrence to engine noise or power where as 1 2 and 3 the engine cut down and struggled, fuel bounced out all the unions up wards with plenty of force .
I removed cam cover and seals etc bent inj pipes up out way and removed no 4 inj ,all rockers where going up down on inspection and all springs valves of what i could see looked fine .

I gave up for the day at this point as the dark n rain had got to me ,but when i got home i thought maybe i should of swopped inj 4 with no 1 ans see if it was working to rule out inj failure .

Well thats as far as i have got so far but there is so many possible things to go wrong and check reading thro the mk 6 section, well the timing chain cost a lot of money but did need doing on inspection tho it will be up the pound shop for the wifes christmas presents this year. Bazzaa does this sound like the same that has happened to you ? Has anyone else suffered the same fate and managed a cure.
Thanks Alf .

[Mikey B]

King Dick are you sure non of your rocker bolts have come lose? This is a very common thing to happen and when the timing jumps (assuming yours did) then it tends to either pull the bolts out of the rockers, pull the threads out or damaged the cam carrier where the bolts bolt in.

[King Dick]

Good Morning Mikey
my timing was spot on when i pinned her up i did turn it over on a 15mm spanner on crank 2 times before i got the pin in on crank sensor but all pins went in with a push but not force ,but as the chain was loose i thought it was best to replace , it was only when i removed it i found the broken upper right guide.

i will check the bolts on Monday , i im having a day away from her today , tho it was pouring out white smoke and sounded like a tractor it drove alone home but under powered and started first turn of the key no glow plug lamps flashing etc...
Thanks Mikey

[winterheating]

hole in the piston,
can be caused by fuel pump breasking down, swarf contaminating injectors, casuing un atomized fuel, then cold spots on piston, then crack hole in piston.

[winterheating]

this one could be same
viewtopic.php?f=5&t=76379

[winterheating]

a simple compression test on the cylinder will tell you.

if it is that and you replace the piston make sure to replace/check injectors and fuel pump, also clean out fuel tank and lines.

regular filter changing and good fuel will stop things like that happening, if a fuel filters left too long, and not drained of water regular you get water damage insinde pump, which can be the start of break up.

[bazzaa]

hi winterheating yes same van guy posted it as well .ive loosed injector pipes one by one it did improve slightly till we did they back up.

[King Dick]

Good Evening.. Thanks Winterheating for you tec info.
I will swap inj over in morning but i do feel that i may be going down the route you have wrote.
I do change my filters regular tho and my oil etc ,im one of them guys thats paints the calipers and waxoils me motors .
I tend to use the same bp garage most of the time and use proper ford filters as i get 12 1/2 % off for cash at the dealer .
My motor has just covered slightly over 170000 miles and has been fairly reliable tho i have done a few sets of brake discs and front wheel bearings , clutch etc but i cant complain , i tend to drive around 50-60 and get behind a truck to save a bit of wind drag as i have a fair size box on my luton.
Any road i have waffled on a bit its back to the van in the morning tho the weather forecast is not looking good with wind and rain over the West Midlands .
If i do have a cracked piston i thik i will search out a replacement lump shes a 125ps due to my mileage .
Thanks for the advice guys will let you know how i progress
Alf .

[Guy88]

hole in the piston,
can be caused by fuel pump breasking down, swarf contaminating injectors, casuing un atomized fuel, then cold spots on piston, then crack hole in piston.

No crank case compression

[King Dick]

Good Evening fellas an gals.
Well myself and with the help of Billybun removed the cylinder head .It took around 3 hours with a couple of tea breaks and 2 bits of toast.
We found no fault with the head set at all,even the head gasket showed no sign of failure.
Billybun noted that pistons 1 3 and 4 where all dry and a dull grey in colour . Piston 2 from timing chain end had a reccess full of a black light fluid and was at the top of its bore tho 1 3 and 4 where half way down set on the timing pins before dismantling.
Long and short of it is Billybun was able to grip the pip in the reccess and pull the piston crown out to find the bottom half of the piston to still be connected to the rod.
I an now going to find a decent 125ps engine tho Billybun has told me i can also put a 90ps in and use my own inj pump .
Its going to be an expensive month
Thanks to the folk that offered there input.
Alf

[Guy88]

Update to this, timing jumped and snapped inlet follower bolts, carrier looks ok and exhaust side seems ok too