clio cup strange tapping noise

[jay.t.7]

ok guys, so i refitted my engine back into the car after being stood in the garage since aug last year, on start up everything is lovely, no warning lights etc etc. but when the car warms up and i blip the throttle at around 2000 rpm im getting a very distinctive metallic tapping noise from the top end area and the car starts to misfire.

on idle its lovely and quiet, and no misfire. soon as i blip the throttle its there again. i can only describe the noise as a very worn dephaser pulley, but i know it isnt that cos it doesnt do it all the time......

the oil light goes out so it cant be oil pressure. could it be sticking lifters?? or could it be an injector fault? im totally baffled as i know the engine was sound when i taken it out the car.

many thanks
jay

 

[jay.t.7]

can anyone help me, im totally baffled

 

[jay.t.7]

would a video of the noise help in the morning??

 

[lemonnobby]

yeah it would be mate. mite need a good run to get the oil everywhere

 

[Matty-MJZ]

Could be a sticky injector dude

 

[jay.t.7]

its deffo not an injector fault as ive swapped a complete rail last night, il get a video this morning.

 

[jay.t.7]

This is a video of the rattle, possible lifter problem????
http://m.youtube.com/watch?v=4xAIBnRwX6M

 

[Fred@BTM]

can't get the video to work? Have you messed with the cam timing at all?

 

[Dan@SJM]

That sounds like cam timing is out and when the dephaser activates its hitting valves.

 

[Dan@SJM]

unplug the vvt solenoid and see if it does it then.

 

[Fred@BTM]

great minds

 

[Dan@SJM]

Indeed! I could be up seeing you tomorrow aswell with russ!

 

[Fred@BTM]

just watched the video on my phone, cam timing is a country mile out! thats valves hitting pistons 100% STOP running the engine

 

[Fred@BTM]

Indeed! I could be up seeing you tomorrow aswell with russ!

i've already said no to collecting the car tomorrow, i'm WAY too busy to sort it, tel Russ to ring me

 

[Dan@SJM]

Ah! ok will do!

 

[jay.t.7]

just watched the video on my phone, cam timing is a country mile out! thats valves hitting pistons 100% STOP running the engine

Even though I've not touched the timing, but the engine is supposedly fitted with uprated cams, however I'm not certain. Would the timing being out that much make it only donor when it's warm????

 

[Dan@SJM]

I suppose it cold be fitted with 422's which apparently will clip valves because of the amount of lift despite being timed up correctly.

 

[Fred@BTM]

yep the criteria for the VVT to be on is above 1800rpm (approx) and coolant/oil above a certain temp = vvt on = inlet cam swings 16degreees = valves kiss pistons, had a few like that, you should be ok re timing it and you'll "just" get away with it, but i'd be comp testing it first

 

[jay.t.7]

Only thing to do is check timing then. However I know it's easy to get it 180 degrees out. So what do I look for to ensure its not 180 degrees out when I check it?

 

[Fred@BTM]

that's not 180 out, that's about 30deg out!

 

[jay.t.7]

i did comp test it the other day and i was getting 200-210 across all 4.