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911uk

Gearbox mount replacement

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15 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHGearbox mount replacement

Leading reported evidence

Check but it isnt a 2 min task

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes
0
Unsuccessful attempts
1
Discussions
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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 contain suggestions
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.

Suggestion · Original poster

I would take the inserts out to check but it isnt a 2 min task!

Gearbox mount replacement
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Leading evidence: 'Check but it isnt a 2 min task' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check but it isnt a 2 min task' (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.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

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1 matching discussions · 15 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Check engine braking at 4500rpm

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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 contain suggestions
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.

Suggestion · Original poster

Will check the engine braking at 4500rpm.

Gearbox mount replacement

Replace engine mounts

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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 contain suggestions
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.

Suggestion · Original poster

I am about to change the engine mounts to the Type911 RS ones but have noticed the clonk taking up drive into reverse / hard on/off power seems to be getting more noticeable so assuming the front mount needs doing as well!

Gearbox mount replacement

Replace mounts

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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 contain suggestions
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.

Suggestion

Changing my mounts to the RS type from Type911 was enough to sort all my gear change and any movement when selecting gears.

Gearbox mount replacement

Replace nylon nuts

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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 contain suggestions
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.

Suggestion · Original poster

Gave the gearbox mount frame a quick lick of paint and finished replacing all the nylon nuts for the undertray.

Gearbox mount replacement
Frequently discussed actions (7)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check but it isnt a 2 min task

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion · Original poster

I would take the inserts out to check but it isnt a 2 min task!

Gearbox mount replacement

Check engine braking at 4500rpm

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion · Original poster

Will check the engine braking at 4500rpm.

Gearbox mount replacement

Replace engine mounts

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion · Original poster

I am about to change the engine mounts to the Type911 RS ones but have noticed the clonk taking up drive into reverse / hard on/off power seems to be getting more noticeable so assuming the front mount needs doing as well!

Gearbox mount replacement

Replace mounts

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion

Changing my mounts to the RS type from Type911 was enough to sort all my gear change and any movement when selecting gears.

Gearbox mount replacement

Replace nylon nuts

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion · Original poster

Gave the gearbox mount frame a quick lick of paint and finished replacing all the nylon nuts for the undertray.

Gearbox mount replacement

Run over a cardboard box

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion · Original poster

It sounded like you had run over a cardboard box when you lifted off.

Gearbox mount replacement

Set working

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion

Led on a concrete drive in the rain in Lancashire isn't the best setting for working on your car.

Gearbox mount replacement
Coverage and how to read this overview

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: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Done some research and it seems changing the single mount is not straight forward without the AGA tool - or does someone have another method which doesnt involve removing the gearbox. I saw the thread on the cut down then redesigned powerflex inserts. Is that the way to go for a quick DIY? http://911uk.com/viewtopic.php?t=121057 http://911uk.com/viewtopic.php?p=1332560 I am about to change the engine mounts to the Type911 RS ones but have noticed the clonk taking up drive into reverse / hard on/off power seems to be getting more noticeable so assuming the front mount needs doing as well! So do i bodge it with the inserts or go full out and buy/sell on the tool with the original lemforder bush?

POST 2Original post

Changing my mounts to the RS type from Type911 was enough to sort all my gear change and any movement when selecting gears. My old ones where the originals date stamped 1997 and cars done 70K. They had already leaked out all their fluid.

POST 3Original post

The powerflex mounts have since been modified so no need to cut down, unless you want them same as mine and infrasilvers. Sill have them in now and they're great - can't fault them. :thumb:

POST 4 / ORIGINAL POSTEROriginal post

Excellent - i will go for the cheapie option then. Thanks

POST 6 / ORIGINAL POSTEROriginal post

"I'll be the judge of that".... Thanks!

POST 7 / ORIGINAL POSTEROriginal post

Started on the engine mounts and then this happened

POST 8 / ORIGINAL POSTEROriginal post

After mild panic, Im a clot and I've ruined my car as oil started pouring from the NS of the engine I calmly carried on with the OS so I could get the jacking beam out of the way and have a look what was happening. It seems the engine dropped a little and the NS engine mount didnt like that. It is also not playing ball despite having the impact gun on it so i left it drenched in oil and wd40 overnight and moved on to removing the undertrays so I could give the gearbox mount nuts a soak. More tomorrow!

POST 9Original post

The engine mounts are full of oil. The gearbox mount has those flat pieces at either side - these will be redundant once you fit the gearbox inserts.

POST 10 / ORIGINAL POSTEROriginal post

Done.. And it moves Gave the gearbox mount frame a quick lick of paint and finished replacing all the nylon nuts for the undertray. I bought some from heritage car parts which have a slightly smaller thread and drilled them out with a 4.5mm drill. The threads on the bolts could really do with cleaning out with a die of some sort It is definitely very different. Whether the RS mounts combined with the insert is too much is up for debate. Maybe the insert wings are still too big? I would say that actually, on a C2, it wouldnt be difficult to chop out the old bush with a hack saw, and then devise a home made press to pull another one in

POST 11 / ORIGINAL POSTEROriginal post

the old engine mounts - pretty sure the very leaky one wasnt leaking before i started work!

POST 12Original post

This is what mine look like after I hacked them down as the NVH was just too much, especially under engine breaking around 4500 rpm. Here's my thread on them if it helps: http://911uk.com/viewtopic.php?t=122405

POST 13 / ORIGINAL POSTEROriginal post

Will check the engine braking at 4500rpm. Pretty sure it not doing that, just feels a bit more raw. I would take the inserts out to check but it isnt a 2 min task! The biggest faff is actually the undertrays. Nothing like when i put a single mass flywheel in the 968cs. It sounded like you had run over a cardboard box when you lifted off. That came out pretty quickly!

POST 14Original post

Tell me about it. After I did the job a second time to trim them down I left the undertray off for a few days until I was happy the problem was cured. Led on a concrete drive in the rain in Lancashire isn't the best setting for working on your car. :-|

POST 15 / ORIGINAL POSTEROriginal post

And there I was cursing over why we bought a 4 post ramp rather a 2 post

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