engine rattle

[diddy]

hi
just purchased an mrs and been told the rattle was a hydrolic tappet but the noise on appears when the car is warm and throttle pressed down about 2 inches, it doesnt rattle at idle.

It sounds like its coming from the drivers side rear and sounds like a chain urrrr urrrr every time i put my foot down then it will stop but start again around 60mph.

checked under bonnet and everything is secure manifold etc

also the car idles at about 1000 revs or just over and when warm drops to 500 near stalling point is this anything to do with the above or just turn the nut to increase revs.

the car has done 39,000 2000 model but i got no service history, a mate is going to take it away do a full service and try and identify the noise.

any ideas where to start apart from the timing chain?

[inert2k3]

Your strange idle could mean that you need to clean your MAF. Just search 'clean maf' in the search box and tons of handy info should come up. Im sure someone more knowledgable will be along to help you with your rattle

Mohammed   s:D s:D

[E]

The rattle sounds to me to be the timing chain or tensioner or both. the tick over could quite well be as Mo suggests the maff needing a good clean.

[diddy]

even if it doesnt do it on the rare occasion?

[Anonymous]

Have you checked your oil level?

[diddy]

yes level is fine done an oil change at the weekend and the spark plugs have been changed also.

[Tem]

been told the rattle was a hydrolic tappet

There are no hydraulic tappets in our engine.  s;) s;)

[Anonymous]

been told the rattle was a hydrolic tappet

There are no hydraulic tappets in our engine.  s;) s;)

Who told you that, the seller?

[Wabbitkilla]

Who ever told you it's a hydraulic tappet was ignorant or lieing.

It does just sound like it might be the chain tensioner though.
Keep an eye on your oil level though please.

[diddy]

so the mrs dont have hydrolic tappets? i was told there were 16 of them lol and yes by the seller.

[aaronjb]

No. The Roadster has solid lifters which are manufactured in a variety of thicknesses.  If those are causing a tapping noise then you have to strip the head down, measure the tolerances, order new lifters and replace as necessary:  m http://www.toyodiy.com/parts/p_E_2000_T ... _1302.html m

It's still more likely it's the chain tensioner, or if it's more of a 'diesel knock' at low RPM as you strain the engine, the belt tensioner (there was a recall on those), or if it's a light rattle that changes as load is applied/removed it could be the little end bearings on the conrods, a loud knock under light load probably big end bearings on the conrods.  I think that covers most of the common 'rattles'.

[Wabbitkilla]

Or the bottle of Bud in the luggage bins   s:wink: :wink: s:wink:

[aaronjb]

Or the bottle of Bud in the luggage bins   s:wink: :wink: s:wink:

You say that.. but it took me a while to work out that the big 'clunk' behind my head was, in fact, the metal chock in the bin behind me  s:oops: :oops: s:oops:

[diddy]

its getting looked at next week, today its getting the pre cats removed.

[Anonymous]

So you purchased a second hand car with an engine rattle? Mmmm, wonder if that was why it was up for sale.

[Ilogik]

Sounds like exhaust heatshield engine rattle, get someone to poke around and press it with a stick. Had it go on mine, some spot weld later no more rattle.  Sounds worse than it probably is.

[markiii]

Sounds like exhaust heatshield engine rattle, get someone to poke around and press it with a stick. Had it go on mine, some spot weld later no more rattle.  Sounds worse than it probably is.

I agree check teh cat heatshield first (hangs head in shame  :-) :-) :-) )

[aaronjb]

Oops I forgot about that one too - though it's a very distinctive and (in my case at least) loud as hell rattle as you apply power to move off from a start at lowish RPM, I never heard it any other time.

[diddy]

but wouldnt it rattle like this from cold? checked the top heat sheild in the engine bay and very secure, its coming from the top right of engine defo sounds like a chain or something like that everytime when the car is warm and foot down about 2 inches it starts press foot further down then it goes again then starts again with your foot down a little further.

How easy is it to inspect the timing chain just for a heads up on price?

anyone in the suffolk area lol

[Anonymous]

Timing chain inspection is a big job. You need to pull the side casing from the engine (remove RHS engine mount, altenator, water pump, crank pulley). You can pull the cam cover to get a close look at the cam sprockets and chain but that won't show much unless badly worn. Most wear occurs on the crank sprocket because it is half the size of the cam sprockets. You need to pull the side cover to get a look at that.

Does the rattle sounds metallic (clanking spanners together) or does it sound 'hard' (diesel engine). Does it vary dependant on engine load?

[onion86]

but wouldnt it rattle like this from cold? checked the top heat sheild in the engine bay and very secure, its coming from the top right of engine defo sounds like a chain or something like that everytime when the car is warm and foot down about 2 inches it starts press foot further down then it goes again then starts again with your foot down a little further.

How easy is it to inspect the timing chain just for a heads up on price?

anyone in the suffolk area lol

My cat heatshield only rattled at 2.5k revs and only when it was warm. I ripped it off in the end and it went away  s:) s:)  If you knock it with your fist it will make the similar noise (if it is that) very metallicy. Is it in any gear whenever the throttle is pressed down '2 inches' or is it at a certain rpm? The part that rattles is shown here. This is however more central.

From the first post and it coming from the back right of the car, I thought it sounded like the timing chain, but E beat me to it.

I'll be back home in Ipswich, but not until October 17th  s:P s:P

[Ilogik]

but wouldnt it rattle like this from cold? checked the top heat sheild in the engine bay and very secure, its coming from the top right of engine defo sounds like a chain or something like that everytime when the car is warm and foot down about 2 inches it starts press foot further down then it goes again then starts again with your foot down a little further.

How easy is it to inspect the timing chain just for a heads up on price?

anyone in the suffolk area lol

Thats what mine was like *cat heatshield*  Used to do it more when warm.  Maybe something to do with the heat.  Before paying a bit bill, just check the shields.

[diddy]

i have checked this it seems secure enough but will take it off and see if it helps, process of elimination i supose.

yes happens every gear when hot.

[diddy]

it doesnt change due to load, its like a machine gun sound.

[Ilogik]

i have checked this it seems secure enough but will take it off and see if it helps, process of elimination i supose.

yes happens every gear when hot.

there is two heat shields, one is internal to the other i think, this one due to vibration breaks, I found this when I was searching for my rattle, popped to Rogue, was fixed shortly after further investigation get underneath it.

Will see if I can grab a pic of where mine was for you. Do you have someone you could stick under the car whilst you rev it.