Any ideas on this noise?
07 April 2018, 04:38 PM
#1
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Any ideas on this noise?
Hi,
Im stuck trying to find the source of this noise that has appeared this week.
I have heard similar twice, and both times they were seals not done up properly, a bolt or two I forgot when I resealed my rocker cover, and the up pipe were it meets the manifold when I changed my turbo, I forgot to do those up.
My exhaust is leaking somewhere engine side, i took it to a small garage friday last week who couldnt find it but suspected the manifold.
I have recently done two (out of the ordinary for the car) long journeys, several hundred miles in the pouring rain with a HKS pod filter, stupid i know.
On one of those journeys on monday just gone I hit what appeared to be a cast iron bit of pipe, i couldnt dodge it due to traffic and a pothole. It made a bang, I checked my sump and drove on. Also after these journeys I checked my oil and it was on the bottom of the dipstick, it didnt take much to top up to full. It was on the full mark before the journeys.
The noise is barely audible when the engine is cold, but once it gets to operating temperature it gets louder until its clearly audible inside and outside the car.
I have checked the manifold, rocker covers and turbo upipe as best i can, the manifold has heat shields I cant remove due to excessive rust on the passenger side, but i have used a torch to check for soot marks and cant see any. On the drivers side, no soot marks and no loose bolts.
Im starting to panic a bit now that it is internal.
Any help would be appreciated!
Im stuck trying to find the source of this noise that has appeared this week.
I have heard similar twice, and both times they were seals not done up properly, a bolt or two I forgot when I resealed my rocker cover, and the up pipe were it meets the manifold when I changed my turbo, I forgot to do those up.
My exhaust is leaking somewhere engine side, i took it to a small garage friday last week who couldnt find it but suspected the manifold.
I have recently done two (out of the ordinary for the car) long journeys, several hundred miles in the pouring rain with a HKS pod filter, stupid i know.
On one of those journeys on monday just gone I hit what appeared to be a cast iron bit of pipe, i couldnt dodge it due to traffic and a pothole. It made a bang, I checked my sump and drove on. Also after these journeys I checked my oil and it was on the bottom of the dipstick, it didnt take much to top up to full. It was on the full mark before the journeys.
The noise is barely audible when the engine is cold, but once it gets to operating temperature it gets louder until its clearly audible inside and outside the car.
I have checked the manifold, rocker covers and turbo upipe as best i can, the manifold has heat shields I cant remove due to excessive rust on the passenger side, but i have used a torch to check for soot marks and cant see any. On the drivers side, no soot marks and no loose bolts.
Im starting to panic a bit now that it is internal.
Any help would be appreciated!
07 April 2018, 04:55 PM
#4
No worries mate,hopefully someting simple.
Other possible noises like this could be,inlet manifold loose or duff gaskets,bad cambelt tensioner or idler,valve clearance out of tolerance,I think you might have the hydraulic tappets on your model so worth checking to see if it has,might just be a sticky one in there.
Try use the screwdriver on the ear test to see if you can narrow down where the noise is.
Other possible noises like this could be,inlet manifold loose or duff gaskets,bad cambelt tensioner or idler,valve clearance out of tolerance,I think you might have the hydraulic tappets on your model so worth checking to see if it has,might just be a sticky one in there.
Try use the screwdriver on the ear test to see if you can narrow down where the noise is.
07 April 2018, 07:28 PM
#5
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Rich your a star! Back left spark plug drivers side was so loose i could get it out by hand.
Covered in black soot.
Cleaned it all up, put it back in and its purring like a kitten
Cheers mate, i was starting to panic.
I think i found my exhaust leak once i had fixed the other issue and was waiting for it to get to temp to see if it was sorted.
The manifold where both parts join under the radiator in the centre, the car was idling and the manifold was still pretty cold to touch both sides, the join was hot and heating my hand when i was hovering an inch a way. It makes sense that its blowing exhaust fumes on my hand.
Next up, trying to fix rusted to dust manifold bolts
Covered in black soot.
Cleaned it all up, put it back in and its purring like a kitten
Cheers mate, i was starting to panic.
I think i found my exhaust leak once i had fixed the other issue and was waiting for it to get to temp to see if it was sorted.
The manifold where both parts join under the radiator in the centre, the car was idling and the manifold was still pretty cold to touch both sides, the join was hot and heating my hand when i was hovering an inch a way. It makes sense that its blowing exhaust fumes on my hand.
Next up, trying to fix rusted to dust manifold bolts
07 April 2018, 07:37 PM
#6
Nice one Martian
Get plenty of release agent on the bolts and say a prayer to the Scooby God's lol
I find this stuff in the red can is better than wd40.
https://xcp-protection.com
Get plenty of release agent on the bolts and say a prayer to the Scooby God's lol
I find this stuff in the red can is better than wd40.
https://xcp-protection.com
