A bit of context, about 4 years ago I "bullet proofed" my VANOS, and that sent me down a rabbit hole unnecessarily. so word of caution is, do limit the scope of your work to what is actually needed addressed, and avoid following internet advise blindly.
For me, the key learnings from that experience are simple:
I will post for reference the test results of my VANOS with the S62 hubs, and change to S54 items and see the effect on the Vanos testing.
I also chose to install a VAC hub as a way to prevent those driving tab from breaking.
For me, the key learnings from that experience are simple:
- Before any VANOS work, do a test pressure and VANOS testing using ISTA, INPA, DIS (depends on your car)
- DO NOT mess with the unit if your tests are successful
- DO NOT change diaphragm springs to S62
- DO NOT change / exchange your oil pump disc
- Address only the issues that are proven to be such
- loose sprocket screws
- address slack between the exhaust hub tabs and disc holes.
- My VANOS had no issues whatsoever, but I caused pressure issues by changing the disc with a faulty one
- I changed the diaphragm springs and as a result slowed down the response time of adjustment, this is not a problem per se, but causes the system to be slower and without proper testing, is not possible to tell what the effects are.
I will post for reference the test results of my VANOS with the S62 hubs, and change to S54 items and see the effect on the Vanos testing.
I also chose to install a VAC hub as a way to prevent those driving tab from breaking.
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