B6MFD 0 Posted August 28, 2005 Report Share Posted August 28, 2005 hi guys iv noticed a rattle snake noise under my bonnet...... i first thought it was just the tappets as its not really that loud.but it doesnt seem to go away as it get warmer.I seem to hear it most when im pulled up next to a wall and it bounces the sound to me......What can i do? its sunday now and i need to use the car today to go get some tyres fitted to my new wheels.....no where will be open today or tomorrow so will be tuesday at the earliest...is it ok to still use her if i drive sensibly? or will i kill her? Link to post Share on other sites
Ciaran 4 Posted August 28, 2005 Report Share Posted August 28, 2005 sounds like ur timimg chain is loose to me.u can drive it but if the chain slips u will wish u hadn't!! Link to post Share on other sites
B6MFD 0 Posted August 28, 2005 Author Report Share Posted August 28, 2005 oh no :-( Link to post Share on other sites
Ciaran 4 Posted August 28, 2005 Report Share Posted August 28, 2005 well it could just be the tensioner that keeps it tight or could need a new chain.what mileage has ur car done??did the noise just appear all of a sudden or has it gradually louder and louder??sorry to ruin ur sunday mate but would hold back driving it till u get it checked out! Link to post Share on other sites
Jimbo 0 Posted August 28, 2005 Report Share Posted August 28, 2005 Could be the Aux belt tensioner?? Mine is on its way out and is rattling, doing it next week. Link to post Share on other sites
VR6Pete 1,455 Posted August 28, 2005 Report Share Posted August 28, 2005 Sounds like chains to me, your best holding the revs at about 1,200, just blip the throttle a little and let it drop.. if it is the chains it will be heard fromt he gearbox side of the engine, If it can be heard, then i'd advise you to check the condition of your top runners.Pete Link to post Share on other sites
B6MFD 0 Posted August 28, 2005 Author Report Share Posted August 28, 2005 well iv decided im going to have it looked at tuesday and use it keep it in my garage till then just incase........im not mechanically knowledgable at all so dont wanna risk it really.....its not a loud nois really and can hardly be heard when the bonnet is open Link to post Share on other sites
VR6Pete 1,455 Posted August 28, 2005 Report Share Posted August 28, 2005 Mine were quite noisey for a good 7 months, obvously if it had slipped a tooth (rare occasions that it happens) I would have know about it!But i know what you mean when you drive past an echo's area!Pete Link to post Share on other sites
B6MFD 0 Posted August 28, 2005 Author Report Share Posted August 28, 2005 the car has done 89670 miles at the mo.....will i be able to get it sorted in time before E38? and how much will i be looking at? not a happy chappy......any ideas on cost? Link to post Share on other sites
B6MFD 0 Posted August 28, 2005 Author Report Share Posted August 28, 2005 cost? time? any 1? Link to post Share on other sites
VR6Pete 1,455 Posted August 28, 2005 Report Share Posted August 28, 2005 Mine was on similar milage, unusul for an OBD2 to suffer from this at this low milage, your talking about few days labour id imagine, about 400 - 500 quid? Link to post Share on other sites
B6MFD 0 Posted August 28, 2005 Author Report Share Posted August 28, 2005 oh dear not happy cheers tho peteHopefully i can get her done for the show.....just cleaned her dropped her a further 40mm and put her some new shiney wheels on...mmmm Link to post Share on other sites
BRG 0 Posted August 30, 2005 Report Share Posted August 30, 2005 mine sounds just how you describe, isolated it to the injectors. each are tapping but with 6 of them sounds like a rattle. I was told that it is not a problem and is fairly common with VR's, would be interested to know if your garage says the same Link to post Share on other sites
richievr 1 Posted August 30, 2005 Report Share Posted August 30, 2005 if you are interested vw book time to replace chains and tensioners is 17 hours!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!gearbox off, clutch off, flywheel off - big job Link to post Share on other sites
B6MFD 0 Posted August 31, 2005 Author Report Share Posted August 31, 2005 Been to a local trust worthy garage and he says its deffo chains or tensioner....quoted me 400 to sort it so its booked in for next monday...no E38 for me &| he advised me to get a new clutch too if its never been replaced....ah well at least i will know thats one less thing to go wrong....iv put her in my garage and changer my name to carloss (car less) untill i get her fixed. Link to post Share on other sites
antera309 3 Posted August 31, 2005 Report Share Posted August 31, 2005 Don't automatically assume the worst, there are lots of things that can cause tapping/rattling noises.It could still be your tappets. What make and grade of oil are you using? If you use an oil that's too thin (e.g. 0w/40) the tappets won't hold pressure when the oil is warm and at it's thinnest.A mechanic's stethoscope will be useful (they are cheap and available from most motorist's stores). Place the stethoscope on the side of the engine (actually the cam chain cover) underneath the coil pack and see if the noise is loudest there. If it is, then it's likely to be the chains.If you're having the chains done, definitely get the clutch (including release bearing) done at the same time, as this will save you a load of cash in the long run.Chain renewal involves removal and separation of the engine & gearbox. Most mechanics quote 6-7 hours. Link to post Share on other sites
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