rattling top end help!

[Fred@BTM]

right i'm 100% baffled by this, i've had the thing apart, cams out, tappets ultrasonically cleaned, put it back together, timing is spot on and its making this noise still

anyone got any ideas? the only other thing i can think is depasher/exhaust pulley

 

[Martin_172]

not tried the old ear up to the screwdriver trick to see if you can pin point it?

 

[Fred@BTM]

yeah i have, and the weird thing is its seems to be coming from the plenham which is odd

 

[sideways danny]

how does it run apart from that? any chance a valve is stuck open a little? does the noise change when you rev the engine?

 

[Fred@BTM]

noise is rpm related, ie the high the rpm the faster the rattle, almost like the cam is hitting something

compression test showed nothing wrong

 

[Alastair.]

dephaser?

 

[Fred@BTM]

it runs fine, just sounds like riverdance on crack

 

[sideways danny]

had something slightly similar with a nissan engine where the lifters had been squeezed in a vice by another garage and all the internals had been smashed, had to change 12 out of 16. Were the lifters firming up ok?

 

[Fred@BTM]

yeah that was what i was thinking, but this car had cams fitted by "a company" so its possible, they were all solid when they came out

 

[sideways danny]

what cams? regrind or new billets?

 

[Stig182]

i had the exact same problem mate, check my recent threads (includes video too), change the tappets! cleaning wont have any effect.

and also try some Wynns Hydraulic Valve Lifter Treatment. £6.99 from halfords, ips in with oil!

 

[Fred@BTM]

£20 a tappet for new ones!! £320!!!

its got billet catcams in it

 

[DrR]

http://www.youtube.com/watch?v=wwreMKegaSo

Sorry couldn't resist.

 

[Stig182]

this was mine...

http://smg.photobucket.com/albums/v143/neonvtr/?action=view&current=20072008006.flv

tappets!

 

[Fred@BTM]

sounds pretty similar!!!

 

[sideways danny]

£20 a tappet for new ones!! £320!!!

its got billet catcams in it

nissan ones are £48 lol, renault = bargain

 

[Fred@BTM]

hum, i might raid the shed and see what i have, i do have a complete set out of an F4R turbo (big block) engine, worth a punt!

 

[john lloyd]

have you checked all the spark plugs are tight, sounds silly i know but i have one work loose in my old 106gti and made real racket. had to get it helicoiled back in.

 

[Fred@BTM]

yeah they're all fine, 25nm torqued in

 

[Fred@BTM]

right good news i've got a spare set of tappets, only thing is they're all squidgey, they haven't been used for a few years, wing it or buy new ones???

 

[kiza1986]

Your rich so buy new ones

 

[.GAZ.]

Your rich so buy new ones

lol

 

[cK]

buy new ones you cheap ass

 

[sideways danny]

right good news i've got a spare set of tappets, only thing is they're all squidgey, they haven't been used for a few years, wing it or buy new ones???

clean em out with de-greaser then drop in a tub of oil over-night. give them a squeeze in the oil too.

 

[Fred@BTM]

cool nice one danny, i'll give it a crack

 

[Inferno]

Hate to say it, but mine sounded very similar when the dephaser went too. Only difference was that the noise wasn't constant - only happened at certain revs.

Edit, actually - now I've listened to it again, it is different!
http://s35.photobucket.com/albums/d187/Inferno182/?action=view&current=MOV00004-1.flv

 

[Chrisjk]

Any help?
http://cgi.ebay.co.uk/RENAULT-CLIO-...VQQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247

 

[doh123]

That's a hell of a noise to be coming from the mill of one of the country's top [ex] Renault tuners. Sounds like a demented wood pecker. How come you did'nt just bell Yozza and his team of ace race mechanics for an instant diagnosis, or are you persona non grata in that quarter? lol

 

[Fred@BTM]

they're all in spain testing the porsche for the lemans series

and this has nothing to do with yozzasport, and we're still very good mates, so cork it :rasp:

 

[doh123]

I have it on good authority that he corks your arse. or used to till he found something better. lol

 

[Fred@BTM]

i wasn't willing to share, he got engaged, i dumped him the b**ch!

 

[SkidMarx]

Yea sounds like a noisey lifter. You ordered new ones yet?? As i may have a brand new set, ready soaked in oil.

 

[Fred@BTM]

na not yet david, i do have a spare set sat here, but they're not new

 

[SkidMarx]

I got a new set for free, didnt realize theye were worth £320! Usually messes em up if theyre squeezed or cleaned when theyre removed. They sometimes do stop rattling though, maybe worth a good thrap in 2nd before you strip it again.

 

[Fred@BTM]

changed all the tappets, still rattling like hell, i'm completely baffled!

 

[Steviant]

What profile catcams are they? 421's by any chance?

 

[Fred@BTM]

yup

 

[Steviant]

It sounds like there is some contact with the pistons.

 

[White16valver]

Worth getting the head off to check for marks on the pistons?

I assume that it wouldn't last long if they were touching though... lol

 

[MATT BLACK]

I would defo say dephaser pulley Fred although without actually seeing it its a difficult diagnosis