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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHalternative source for vacuum lines? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Use silicone hose made in usa and brass fittings throughout
Performed · outcome unconfirmed
No successful repair reported for this finding.
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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.
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Performed · outcome unconfirmed
I used silicone hose made in USA and brass fittings throughout.
alternative source for vacuum lines? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Use silicone hose made in usa and brass fittings throughout' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Repair many cars' (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.
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 have a roll of 3mm ID high temp silicone vacuum tubing that I have used to repair many cars.
alternative source for vacuum lines? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace lines
Suggestion or failed attempt
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Unsuccessful attempts
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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
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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.
Suggestion · Original poster
When I received it I found it a bit soft so would like to test it before replacing all the lines.
alternative source for vacuum lines? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use robust ,reuseable clips
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
Try to route the hose and position fittings where they are more visible/accessible and allow enough slack to make future work easier.Use robust ,reuseable clips to keep the hose off hot items and away from moving parts.
alternative source for vacuum lines? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use robust ,reuseable clips
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
Try to route the hose and position fittings where they are more visible/accessible and allow enough slack to make future work easier.Use robust ,reuseable clips to keep the hose off hot items and away from moving parts.
alternative source for vacuum lines? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.
9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
I am about to redo the vacuum lines on my 2.7 engine.The last time I did this I bought lines from Porsche but am wondering if there is an alternative. Porsche's lines are OK but pricey for what they are. What else is out there?
I would like to buy locally, Auto Zone and O'Reilly are US only and I find the NAPA site a PITA.
The Porsche spec is 4mm OD and 1mm ID, the OD is important because all the connections are made with the OD, i.e. the tube is a male connector. I have found some vacuum tubing on Amazon that is 4mm OD and a decent temperature range but it is 2mm ID, is the ID important?
https://www.amazon.ca/Mssoomm-Silicone-32-81ft-Flexible-Transfer/dp/B08GKN8GGR/ref=sr_1_34?crid=MW7J2J0S9MQD&keywords=1mm%2BID%2B4mm%2BOD%2Bvacuum%2Btube&qid=1689528397&sprefix=1mm%2Bid%2B4mm%2Bod%2Bvacuum%2Btube%2Caps% 2C120&sr=8-34&th=1
Still wondering if 2mm ID would be OK in place of 1mm ID.
I checked at Auto Zone when I was near one last week and they don't carry 4mm OD, Auto Haus AZ has the right size but is not worth it with shipping. So at the moment Porsche seems to be the best source.
I was hoping to find a source where it would be cheaper to buy in bulk because I have 3 engines that should be done soon.
I don't think the 2mm ID will be a problem. I have a roll of 3mm ID high temp silicone vacuum tubing that I have used to repair many cars. I have placed it with connectors or cut pieces of the old tubing. It has worked well for years with no issues.
This has been covered in previous battles with the SAi system. I used silicone hose made in USA and brass fittings throughout. Sure they are not OEM but silicone and brass will outlast plastic for sure.
Try to route the hose and position fittings where they are more visible/accessible and allow enough slack to make future work easier.Use robust ,reuseable clips to keep the hose off hot items and away from moving parts.
Good ideas, including to reroute the lines to make future maintenance easier.
I ended up buying this:
MECCANIXITY Silicone Tubing Hose 2mm ID 4mm OD 8ft Red High Temperature for Water Hose Air Tube
https://www.amazon.ca/dp/B09L7MW9PK?psc=1&ref=ppx_yo2ov_dt_b_product_details
When I received it I found it a bit soft so would like to test it before replacing all the lines. I will try to find a place where I can test this silicone line and where I can easily replace it if it collapses.
This is a source reference. Confirm exact model applicability in the original material.
