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Join Date: Apr 2009
Location: Shaker Heights, Ohio
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Wow, that is a relief. thanks!
don
Old 05-04-2009, 10:04 AM
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Location: San Diego, CA
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Good job on the writeup and pics of the plugs etc. I did this combined with the guitar string method that amfab over at rennlist pioneered. Had two ports number 3 and 6 with no airflow. After drilling and flushing they opened right up.

Stan
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Old 05-04-2009, 10:59 AM
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I've been asked to post the p/n for the Check Valve.

It is 993-113-250-03 $81.25 from our host
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96 993 Track Hippo | Spinning Hippo Racing
Old 07-08-2009, 08:48 AM
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I bought an extra one.. (if you need one I'll sell it)
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Old 07-08-2009, 09:24 AM
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Does anyone know if any corrective actions were taken during dealership rebuilds for SAI issues, that would lessen the likelihood of this issue reoccurring?

One of the receipts from my car's past shows a cylinder head rebuild due to plugged passages. The documentation includes a comment stating: "Drill Secondary Air Passages"

What was the extent of the 'drilling' operation performed? This was a warranty repair @ a dealer.
Old 09-05-2011, 04:46 AM
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"What was the extent of the 'drilling' operation performed?"

This implies that the air passages were cleaned by use of a drill
and a flexible wire/cable, e.g. speedo cable, to fully remove the
carbon buildup, which is the common technique used.
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Old 09-16-2011, 08:01 AM
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Now Available for Ordering:   101 Projects For Your BMW 3 Series 1982-2000  [more info]
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Quote:
Originally Posted by shahid sa View Post
Download the list of risks available in spreadsheet, really helpful, you can also find few more word and pdf files to download once you open the above link.


seo uk expert
sniff, sniff...Does anybody else detect the distinct odor of SPAM?
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If it flows, it goes. If its smooth, it moves. Any questions?
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Old 09-09-2012, 01:11 PM
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Quote:
Originally Posted by Jascha View Post
I have one caveat to add: I would not recommend to the uninitiated to use such high pressure. The risk is that you will blow out the thin-walled plugs (x2) on the manifold body. These are plain steel type, they tend to rust and will surely rapture under extreme pressure and solvent use (see image below)

Agree. With significant mileage it is likely the plugs have already rusted through. The plugs are 14mm & difficult to find. An alternative is a Mercedes Benz p/n: 000000-004054-M22 (available @ Pelican for ~$3)



Air leaks into the exhaust due to failed plugs or check valve can cause other problems & should be addressed even if a check engine light is not present. (lean shift in o2 sensor readings, elevated catalyst temperatures, interaction with o2 sensor diagnostics, etc..)

Rebuilt manifold:



Here's another potential failure point that hasn't been discussed:


Old 10-07-2012, 06:57 AM
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Old 10-07-2012, 06:57 AM
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