[Mk2] [Turbo] Minor engine rattle....
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[Mk2] [Turbo] Minor engine rattle....
On a rev3 turbo. If you gently blip the revs from 1000 to about 1500 then as the revs die back there is a slight 'tappety' rattle from the rocker cover/inlet manifold area. Any ideas?
Re: [Mk2] [Turbo] Minor engine rattle....
Worn cam buckets? Pull the cover off and measure clearances, and inspect the buckets.
Sounds strange I know- but could be an exhaust leak maybe? EDIT- you said inlet side, so unlikely!
Sounds strange I know- but could be an exhaust leak maybe? EDIT- you said inlet side, so unlikely!
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Re: [Mk2] [Turbo] Minor engine rattle....
ashley wrote:Worn cam buckets? Pull the cover off and measure clearances, and inspect the buckets.
+1
Re: [Mk2] [Turbo] Minor engine rattle....
Well there is ACIS
Re: [Mk2] [Turbo] Minor engine rattle....
It has valves, but never seen them rattle before...easy to check, unbolt the top half of the inlet manifold and have a look.
My money's on the top end though
EDIT: I'm talking b0ll0x...its the NA that has ACIS, you've got a turbo haven't you
My money's on the top end though
EDIT: I'm talking b0ll0x...its the NA that has ACIS, you've got a turbo haven't you
Last edited by ashley on Mon Mar 03, 2014 7:09 pm, edited 1 time in total.
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Re: [Mk2] [Turbo] Minor engine rattle....
ashley wrote:Well there is ACIS
Would you like to phone a friend?
Re: [Mk2] [Turbo] Minor engine rattle....
Peter Gidden - SBITS wrote:ashley wrote:Well there is ACIS
Would you like to phone a friend?
Re: [Mk2] [Turbo] Minor engine rattle....
ashley wrote:Peter Gidden - SBITS wrote:ashley wrote:Well there is ACIS
Would you like to phone a friend?
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Re: [Mk2] [Turbo] Minor engine rattle....
I have a rattle in the same rev range..
maybe yours looks like mine ?
could you check here ?
http://www.youtube.com/watch?v=PEcMBJJLtOI
maybe yours looks like mine ?
could you check here ?
http://www.youtube.com/watch?v=PEcMBJJLtOI
Re: [Mk2] [Turbo] Minor engine rattle....
Iv heard this on a few rev3s ive checked the valve clearences and all checked out fine.
Just left it it hasnt got any worse but would like to know what it is .
Just left it it hasnt got any worse but would like to know what it is .
Noise
The top end sounds pretty much the same as mine. I did check all valve clearances and they were in spec, admittedly towards the allowable max in most cases.
Some of the noise on mine was an exhaust blow as an earlier reply suggested and having fixed that it just sounds like noisy tappets
Some of the noise on mine was an exhaust blow as an earlier reply suggested and having fixed that it just sounds like noisy tappets
Re: [Mk2] [Turbo] Minor engine rattle....
could be the start of turbo-exhaust gaskets going
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Re: [Mk2] [Turbo] Minor engine rattle....
2tmike I did not understand, have you solved the issue on your car or just left the noisy tappets there?
In my case I had the engine rebuilt, together with the head, so the exhaust gaskets were new.
I checked the valve clearance many time too and all was in spec.
That noise looks like a mistery to me
In my case I had the engine rebuilt, together with the head, so the exhaust gaskets were new.
I checked the valve clearance many time too and all was in spec.
That noise looks like a mistery to me
Noise
Not really solved so going to live with it for a while as everything I look at checks out ok now. I'm running a 5/50 Motorsport oil and maybe a different spec or oil additive might quieten it down, but apart from that I'm out of ideas!!!
This is on an st205 celica and if I run the rev5 mr2 turbo (same spec engine) and compare, the celica is noticeably more noisy[/quote]
This is on an st205 celica and if I run the rev5 mr2 turbo (same spec engine) and compare, the celica is noticeably more noisy[/quote]
Re: [Mk2] [Turbo] Minor engine rattle....
This symptom has occured in the past, and its been the support bearing that is on the long drive shaft. Sounds mad i know, but mines had it. It can either be worn, or the little rubber tipped screw that helps secure it can lose its tip.
It rattles in that rev range in neutral, and its basically right under the inlet manifold, and has an almost "top endy" sound to it.
Obviously it could be other things, but I'd check that area out, no harm done.
It rattles in that rev range in neutral, and its basically right under the inlet manifold, and has an almost "top endy" sound to it.
Obviously it could be other things, but I'd check that area out, no harm done.
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Re: [Mk2] [Turbo] Minor engine rattle....
I'll check it asap.. I always thought it was loud from the bottom. Thanks!
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Re: [Mk2] [Turbo] Minor engine rattle....
I did a little check on the support bearing and nothing seems wrong with it.. Also I couldn't find any rubber tipped screw on it..
However I put one end of a screwdriver on my ear and one on the oil pan and searched for the noise.
It is loader when I put the other end on the left side of the oil pan (looking the car from the back).
Could be a faulty internal bearing ?
However I put one end of a screwdriver on my ear and one on the oil pan and searched for the noise.
It is loader when I put the other end on the left side of the oil pan (looking the car from the back).
Could be a faulty internal bearing ?