Need help 2007 N14 cooper S top end rattle
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Neutral
Joined: May 2018
Posts: 5
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From: Suffolk UK
Need help 2007 N14 cooper S top end rattle
Hi guys i have a horrible rattle coming from the cam cover area above cylinder 1 right by the pcv pipe. The rattle happens when the engine is warm between 2,000-3,000 rpm. But only on a steady throttle as soon as the engine is pulling it goes. The noise is very metallic.
I have already replace the chain, guides, tensioner and vanos gear. Also done a walnut blast about 6 months ago.
Has anyone had this before? I'm thinking hydraulic lifter sticking?
I have already replace the chain, guides, tensioner and vanos gear. Also done a walnut blast about 6 months ago.
Has anyone had this before? I'm thinking hydraulic lifter sticking?
Thread Starter
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Neutral
Joined: May 2018
Posts: 5
Likes: 0
From: Suffolk UK
I have used the latest genuine mini 'long' chain tensioner. It's not the chain. The noise isn't there from cold only starts only when the engine is warm and gets worse the hotter it gets. 'Do I have enough oil in the engine' seriously?
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what's with the attitude?
we are asking questions to fill the gaps in your diagnosis...we're not with you and we dont know what you or someone else did on your car!
people are something...good luck mate!
we are asking questions to fill the gaps in your diagnosis...we're not with you and we dont know what you or someone else did on your car!
people are something...good luck mate!
OVERDRIVE
Joined: Mar 2013
Posts: 5,489
Likes: 629
From: Fuquay Varina, NC
Long distance car diagnostics is like throwing darts blindfolded. The more we now, the bigger slit in the blindfold.
So as the engine heats up something is expanding and rattles. For me I would recheck all the torque settings on the head.
So as the engine heats up something is expanding and rattles. For me I would recheck all the torque settings on the head.
3rd Gear
Joined: Mar 2004
Posts: 295
Likes: 13
From: Makakilo,Hawaii
Since the subject is rattle noise, i can not pin point where its coming from, stetoscope all around the top valve cover i dont hear snapping chain or bearing noise, i did disconnect the brake booster vacuum hose and the noise came quiet, do i need to replace the vacuum pump? When i put my hand on the vacuum connection it pulling vacuum. This car is my '08 R55 Clubman S
Last edited by drea-min; Jun 25, 2018 at 01:28 PM. Reason: Mispelled
Moderator
Joined: May 2012
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From: San Francisco Bay Area
How many miles on the car? High mileage N14 vacuum pumps have been known to seize, that stops the camshaft, pistons hit the valves, and you're buying a new engine. If you even suspect the vacuum pump then replace it, cheap insurance.
3rd Gear
Joined: Mar 2004
Posts: 295
Likes: 13
From: Makakilo,Hawaii
Since the subject is rattle noise, i can not pin point where its coming from, stetoscope all around the top valve cover i dont hear snapping chain or bearing noise, i did disconnect the brake booster vacuum hose and the noise came quiet, do i need to replace the vacuum pump? When i put my hand on the vacuum connection it pulling vacuum. This car is my '08 R55 Clubman S
3rd Gear
Joined: Mar 2004
Posts: 295
Likes: 13
From: Makakilo,Hawaii
Since the subject is rattle noise, i can not pin point where its coming from, stetoscope all around the top valve cover i dont hear snapping chain or bearing noise, i did disconnect the brake booster vacuum hose and the noise came quiet, do i need to replace the vacuum pump? When i put my hand on the vacuum connection it pulling vacuum. This car is my '08 R55 Clubman S
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