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Motor Mounts Top bolts - Correct torque - 17 or 23 ft lb?

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7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHMotor Mounts Top bolts - Correct torque - 17 or 23 ft lb?

Leading reported evidence

Replace mounts yesterday and initially torqued

Performed · outcome unconfirmed

No successful repair reported for this finding.

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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.

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Performed · outcome unconfirmed · Original poster

I changed my mounts yesterday and initially torqued to 25 ft lb which seemed excessive.

Original post Read captured discussion
Motor Mounts Top bolts - Correct torque - 17 or 23 ft lb?
Frequently discussed work

Check on them each time the air box comes out

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Suggestion · Original poster

I will check on them each time the air box comes out.

Original post Read captured discussion
Motor Mounts Top bolts - Correct torque - 17 or 23 ft lb?
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Leading evidence: 'Replace mounts yesterday and initially torqued' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check on them each time the air box comes out' (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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Replace rear mounts the other week

Performed · outcome unconfirmed

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 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

I just replaced the rear mounts the other week.

Original post Read captured discussion
Motor Mounts Top bolts - Correct torque - 17 or 23 ft lb?

Check on them each time the air box comes out

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 will check on them each time the air box comes out.

Original post Read captured discussion
Motor Mounts Top bolts - Correct torque - 17 or 23 ft lb?

Use 23 or 25 ft lb

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

Is everyone just using 23 or 25 ft lb on these bolts?

Original post Read captured discussion
Motor Mounts Top bolts - Correct torque - 17 or 23 ft lb?

Use blue loctite

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes
0
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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

I did use blue loctite on them when I reinserted them.

Original post Read captured discussion
Motor Mounts Top bolts - Correct torque - 17 or 23 ft lb?
Frequently discussed actions (5)

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

Check on them each time the air box comes out

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 will check on them each time the air box comes out.

Original post Read captured discussion
Motor Mounts Top bolts - Correct torque - 17 or 23 ft lb?

Replace mounts yesterday and initially torqued

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 changed my mounts yesterday and initially torqued to 25 ft lb which seemed excessive.

Original post Read captured discussion
Motor Mounts Top bolts - Correct torque - 17 or 23 ft lb?

Replace rear mounts the other week

No successful repair reported for this finding.

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

I just replaced the rear mounts the other week.

Original post Read captured discussion
Motor Mounts Top bolts - Correct torque - 17 or 23 ft lb?

Use 23 or 25 ft lb

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

Is everyone just using 23 or 25 ft lb on these bolts?

Original post Read captured discussion
Motor Mounts Top bolts - Correct torque - 17 or 23 ft lb?

Use blue loctite

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

I did use blue loctite on them when I reinserted them.

Original post Read captured discussion
Motor Mounts Top bolts - Correct torque - 17 or 23 ft lb?
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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.

7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

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Generation: 20261027T000231Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I realize this question has been asked many times and most often the answer is 23 or 25 ft lb for the motor mount top bolts. There are several motor mount DIY's stating 25 ft lb. My car (99 C2) has M8 grade 8.8 bolts for which I believe 17 ft lb would be more appropriate. I have seen one reference to the workshop manual stating 17 ft lb. I changed my mounts yesterday and initially torqued to 25 ft lb which seemed excessive. I've since reverted to 17 ft lb. Hope no permanent thread damage was done. The threads are in a steel nut welded to the sheet metal. Worst case a longer bolt and nut could be used to secure the mounts. Thoughts? Is everyone just using 23 or 25 ft lb on these bolts?

POST 2Original post

I cant imgine u did any damage. I would be more concered if u were torquing into aluminum.

POST 3Original post

I swear my service manual stated 23 ftlbs. That's the value I used.

POST 4Original post

I would say anything tight enough to hold them in place. They don't really do much anyway, the weight of the motor is pulling down on the motor mounts. They aren't going to go anyplace.

POST 5Original post

You�re really just securing the nuts from vibrating loose - if you�re worried about that at 17 ft lbs just throw a spot of blue loctite on it and be done...👍

POST 6 / ORIGINAL POSTEROriginal post

Thanks all for your responses. 17 ft lb it is then. I will check on them each time the air box comes out.

POST 7Original post

I just replaced the rear mounts the other week. I reinstalled mine based on �feel� from when I took them off as they took little effort to do so. I did use blue loctite on them when I reinserted them.

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