Quote:
Originally Posted by workingonit
I wish someone could tell me the specific thread of the adapter for the fuel pressure Schrader valve on pre-facelift M54's. I've seen recommendations for the OTC 5630 kit, but I also read that the fitting doesn't work (on other forums), and ECS Tuning offers only one adapter, and it says it doesn't fit my 2001 M54.
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Hi Workingonit:
I'm not an expert, but from recent experience I can tell you that I've looked all over the internet for a spec on the Schrader valve and never found one. Some people say they're all the same (any bicycle valve is the same), others say they're all different, but I have found no specs. I can say that what was labeled as a "Ford Schrader Valve Adapter" on the O'Reilly's kit did not work. On my '05 it clearly didn't depress the valve enough to register, on my '01 it did register but spewed fuel like Niagra Falls (shout out to my Canadian friends).
The 5630 kit reads pressure on both cars. But it still leaks fuel. I put plumber's tape on and tightened every bit as far as I thought was safe. If you don't mind breaking your Schrader valve off you could tighten farther, but I wasn't willing to take that risk. I think the numbers the 5630 produced were probably close to accurate.
There are a zillion kits on Amazon that seem to be capable of this sloppy fit. I mostly bought the 5630 because Amazon said it was for Volvo and BMW and somewhere on Xoutpost someone said it was great. I don't think it's great, but it works better than the stuff from O'Reilly that they claim is worth $150.
Hope this helps.