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Discussion summary
YOUR RESEARCHJust replaced my engine mounts- WOW!
Reported or suspected cause
brace bar
Reported cause
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that report identifying a cause
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Reported cause
In the end it turned out to be the brace bar that runs across the car under the gearbox, this had corrosion trapped on mounting face, I cleaned it up and re torqued the bolts, no more nasty clunk.
Leading evidence: 'brace bar' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'brace bar' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Install 997 shifter so i'm pretty sure it's not related' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Install 997 shifter so i'm pretty sure it's not related
Performed · outcome unconfirmed
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Unsuccessful attempts
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Performed · outcome unconfirmed
I had a new clutch less than six months ago and have also fitted a 997 shifter so I'm pretty sure it's not related to those.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Performed · outcome unconfirmed · Original poster
So further to replacing all of my suspension links - which made a huge difference to the car - I have just replaced the 2 engine mounts (Rein mounts from pelican parts which are reboxed OE mounts).
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed
Hard to tell with the exhaust tips as I set them when I replaced the exhausts last year.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed · Original poster
I had read posts on here from others that had replaced theirs, but didn't appreciate what they said about improved handling until I drove mine just now.
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Performed · outcome unconfirmed · Original poster
So further to replacing all of my suspension links - which made a huge difference to the car - I have just replaced the 2 engine mounts (Rein mounts from pelican parts which are reboxed OE mounts).
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
So further to replacing all of my suspension links - which made a huge difference to the car - I have just replaced the 2 engine mounts (Rein mounts from pelican parts which are reboxed OE mounts).
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed · Original poster
I had read posts on here from others that had replaced theirs, but didn't appreciate what they said about improved handling until I drove mine just now.
Discussions that performed work without a confirmed outcome
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I've also replaced all my suspension but do have a slightly sloppy shift as well as a very slight knock on acceleration as well as when I come off the gas.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
brace bar
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Reported cause
In the end it turned out to be the brace bar that runs across the car under the gearbox, this had corrosion trapped on mounting face, I cleaned it up and re torqued the bolts, no more nasty clunk.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
15 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T064914Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
So further to replacing all of my suspension links - which made a huge difference to the car - I have just replaced the 2 engine mounts (Rein mounts from pelican parts which are reboxed OE mounts). Simple job compared to the suspension links that's for sure!
The difference in the car is incredible. I had read posts on here from others that had replaced theirs, but didn't appreciate what they said about improved handling until I drove mine just now. It is like a different car. Only now do I realize how sloppy it was. The engine is now semi rigid in the car, moves with the car, not against it. Gear changes under hard acceleration are so much smoother - the car doesn't lurch when the clutch is disengaged.
My passenger seat doesn't shake anymore either!
Highly recommend doing this to anyone who hasn't changed them.
I am delighted with the results. Between the new suspension and engine mounts, the car is finally fantastic!
That will be next on my list when funds recover! Funny how one can become aware of play in the front when the rears are new. It's not too bad but I take your point
Stick one of those in for now but I'd suggest putting a new bush in next time your gearbox is off.
Yes rear engine mounts make a massive difference! Also a 997 shifter mech is a great cheap upgrade to the shift.
I read this thread thinking it was what I needed but now I'm not sure.
I've also replaced all my suspension but do have a slightly sloppy shift as well as a very slight knock on acceleration as well as when I come off the gas. I had a new clutch less than six months ago and have also fitted a 997 shifter so I'm pretty sure it's not related to those.
The thing is I've just been under the car and I can't get the engine to move at all which I expected to be able to do if the mounts were shagged. Car is on £125k and not sure if they've been done before. Hard to tell with the exhaust tips as I set them when I replaced the exhausts last year.
What do people think? I've ordeded a gear box mount insert as well just so that everything is done.
Grab hold of both exhaust manifolds whilst under the car. Push up on one and pull down on the other and vice-versa. See if there is 'rock'. Also, go to the front end of your gearbox (you'll need to remove an undertray and see if you can movev the gearbox up and down at the front. The front gearbox insert is naff and sags. Personally I'd never fit a new one but would prefer the powerflex insert as it removes the 'air pockets'.
You can see the OEM bush here what a poo design it is:
.....and here the powerflex inserts to beef it up:
Just change them. With 125k on them you can expect them to be toast. I have never seen a post where someone removed one and it was Still working.
I would be surprised if you weren't glad afterwards
This is something i often report on services but so few owners bother to replace them.
I have to admit i would struggle with the wiggle method ( im not big you know
).
I tend to look upwards at the mount and can see its dropped .
I did a search for pictures to try and show it but obviously its not easy to do an upshot let alone find one so the below will give you some idea of what to look for.
Rule of thumb .. if no history in 10 years to say they have been replaced then i would recomend it .
I had a weird "clunk" on/off the power after I'd done my clutch. I was paranoid the flywheel bolts had come loose.
In the end it turned out to be the brace bar that runs across the car under the gearbox, this had corrosion trapped on mounting face, I cleaned it up and re torqued the bolts, no more nasty clunk.
My 996 turbo was on around 29k miles when I changed to RSS mounts. I got them cheap and wasn't expecting much change. I was pleasantly suprised. The idle chatter from rhe LWFW completely went and it just felt a bit tighter.
MC
I'd definitely recommend the standard new bush for the gearbox. A lemforder one can be bought for £16.
Those powerflex things are bloody awful but we all like different things.
If you like your interior buzzing like something from Ann Summers then go for it. Any coins almost try and make a bid for freedom from the ash tray. And if you don't have any gearbox whine now, you will once you get those insert things.
Some say "because race car". I say "because dog turd". :grin:
They overly prop up an old standard bush. Just get a nice new bush as porsche intended and that's perfect. Stiff mounts are great on track cars. Daft on road cars.
Like I say though we all have a different end goal for our cars. Mine is a 100% road car, being as sharp as it can be, whilst feeling as close as possible to a brand new factory fresh one.
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