agggggggghhhhhhhhhhhhhhh

right as some of you know, the cam belt snapped on the missus clio last week, so i spent all my spare time fukkin about with it, replaced all 8 valves and got it all back together.

then it came to do the timing,,,

it says to set cylinder 1 to TDC on the compression stroke, so i turned the cam until the inlet valves opened then on to the making on the cam sproket and head to line tham up.

and the missus old man put a needle file into the spark plug hole to find TDC, i cranked it a little bit....

PING, half the fookin needle file shoots out

head off again, remove bit of file, reassemble and do the same to put the cam belt on, crank cam so inlet valves have just opened and shut to marks on head and sproket, and set the bottom crank pully to the marks on it and the oil pump.

cam belt on, crank by hand, it all still lines up

reassemble engine, go to fire it up, will almost start but not quite

so took a plug out, missus cranked it over, i must have been touching the metal as i got one fukkin hell of a belt fookin makes you jump i tell thee...

anyway still wont go, petrol is pissing in so not that either, so i take all the plugs out shove bog roll in each one and turn it over, all bits except on cylinder 1 pop out, so no comp on cyl 1??

thats the one the needle file snapped off in, could it have fukked a valve??

im mighty fukked oiff with it now, took a chunk out of my thumb, cut my left hand to fukkery and im knackered.

so gotta go back to swindon to do it all again

any ideas on why its being a c*nt???

 

wounder...

no idea whats wrong thou

alex

 

im gonna hit the fukka with a big mallet later!!


oh, i forgot to mention, the car was out side on the side of the road while i was doing all this....


got propperly fukking soaked yesterday!!

we have now managed to shove it in a garage tho.....

oh well

take 2

 

Sounds to me like the timing maybe ever so slightly out - I know on mine when I do the timing I've got a TDC groove on the flywheel which you can see through the gap where the flywheel sendor is.

Only other thing is that possibly one of the new valves are sticking on that cylinder. But having said that it still should start just on three cylinders - which leads back to the timing being ever so slightly out. Also 8v engines can be a pig to start the first few times after they've been apart - try sticking a little bit of petrol in the inlet manifold to help it fire up - normally works for me.

HTH!

 

cheers for the info mate.

when i had the head off i turned the cam and all the valves opened and shut ok.

in the haynes it tells you how the set tdc but, bot when the cam belt has snapped.

am i right in thinking that after the inlet valves have opened and closed, then turn the cam sprocket around some more so the marks line up that it will than be on the compression stroke?

also does it matter whether the piston at tdc is on what would have been the comp stoke or the zorst stoke as i have no way of telling which is which, just set it at tdc.

as for the fuel, it was pissing in, i tooke the plugs out and the missus cranked it over, i got a face full of petrol lol

the engine is a 1.2 but i would have thought it would still run on 3 cyls maybe not as if there aint enough comp to start it??

 

Yeah IMO it will matter whether or not its on compression or exhaust stroke - could it possibly be the timing is 180deg out if you know what I mean.

Yeah it should still run on 3 cylinders even if its a 1.2. Did you have the head compression tested to make sure that it wasnt cracked before you put it back together???

 

no mate, didnt have it compression tested, i am borrowing my mates comp tester later so ill have a go with that.

wouldnt have thought it would crack, it just the cam belt that snapped.

it says in the haynes to time it with tdc on the compression stroke.

 

Well....you never know what may happen - I'm sure if you got smacked by a piston going x mph I'm sure there's a possibly you might crack! LOL! Not saying its happened but you've got to explore every possibility!!!

Yeah....compression stroke sounds about right - you sure you turned the engine the correct way when you timed her up??

I had a similar problem once when I rebuild one of my engines - the car would run on all cylinders but VERY VERY badly - would hardly rev up. I changed every possible ancillary - fuel reg, MAP sensor, ECU etc etc - turned out to be that the timing was 1 tooth out!!!!

 

yeah cranked it the right way lol.

timing marks all lined up ok tho when we done it.

it did bend all the valves tho when it snapped, head looked to be ok

 

Do you have to remove the dizzy on a Clio when you do the head? If so is the dizzy the correct way around - this would also have a similar outcome to the timing being 180 degrees out??

 

its efi mate, so there is a coil pack.

 

Cool....I'll keep thinking! LOL!

 

cheers lee.

 

Any luck mate?

 

set the engine to tdc , now turn it (the crankshaft) backwards you should be seeing the exhaust valve start opening on no4, now rotate the crankshaft forward (correct rotation) to tdc and keep going just past, now exst valve should have completely shut on no4 and inlet should be opening on no4, wind the c/shaft back to tdc and you are now on the top of compression stroke on no1 i.e ready to fire

mark pulley with a bit of white paint , shove a timing light in number one plug lead and check to see if its firing on number one when its supposed to be

if you have all the timing marks lined up correctly, you have fuel and ignition and it lights it at the right time, even if you have next to no compression it will fire and run(albeit roughly)

HTH
Pugo

 

Now thats what you call an explanation!!! I've never used a timing light in my life...thought they were only for carbs cars!! Ah well you live & learn! LOL!

 

Thinking about it now....I dont know why I ever thought they were only for carbs cars! DOH!

 

have you tried towing it to bump it?

 

update lol.

well i done a comp test, and as i put in new valves it did NOT adjust the valve clearences on the rocker arms, as ive never worked on an engine without hydraulic tappets, i didnt think of it!!

but as i was doing this i noticed that the inlet valve of no 1 was way too low and not in contact with the rocker.

the valve was bent, so head off again and i removed the valve.

i have ordered some more valves again and the missus dad has took the head into his work cos there is an engine balancer on his site who used to build engines etc and is gonna check it for us

cheers pugo for the explanation

although we need to set the engine up with no belt on, basically the way i done it the 1st time was i cranked the cam over by hand, until the inlet valves on cyl 1 had opended then shut, then cranked it a bit more until the timing marks lined up, that would indicate that that it was in the right position for TDC would it not?

ill do it the way pugo has, prolly be tomoz or thursday now.

cheers for the help guys.

 

oh yeah, i aint got a timing light, where can you get em from?

halfrauds?

 

Aye, halfrauds sell em mate.

 

cheers mate, might take a peek in one later

 

 

Dan,

I got a timing light, if you wanna borrow it bud

 

matt, that would be cool if i could, can i come later and get it please?? what time are you gonna at work till, or i can drop by your house??

cheers mate, appreciated

 

Be over there till bout 10pm tonight mate

Come and pick it up if you want?

 

yeah cool, will do cheers.

if i can fookin remember how to get there

 

Take it you won't be bringing the missus Clio then

Sounds like a bit of a nightmare job in the end!!!!

 

lol, no ill be in mine

nightmare.....

yes, you could say that!!