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    1. · Registered
      Joined
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      17 Posts
      Discussion Starter · #1 ·
      I decided to tackle the oil leak from the front spool valve assembly on the 2009 Ody EX-L. Bought the gasket set from Amazon (Link) and went to work. To clean off the built up oil sludge prior to removal, I sprayed the area heavily with Purple Power degreaser and brake cleaner, then washed off with hot water. Disassembly was a breeze thanks to the directions in similar posts.

      The new gaskets fit the upper and lower oil control valve well. I applied Permatex 85409 Ultra Rubber gasket sealant to only the upper control valve.

      Put everything back together and now getting the dreaded P3497. The Ody goes in safe mode almost immediately, of 3500RPM limit and cylinder deactivation.

      After researching, I found that there's a specific torque spec of 8Nm (6lbft) for the three bolts. I definitely did not follow this guide and cranked them down tight. I took everything back apart and the gaskets looked to still be ok. The Permatex did not spread anywhere it shouldn't have went from what I could tell. I also verified the vtec (?) valve moves freely and rotates.

      I one-finger tightened the three bolts, yet can't get rid of the P3497. The van stays in Safe mode and can't rev past 3500. Only the CEL is illuminated. I've quadruple checked the electrical connections and verified that at least Cylinder 4 is deactivated.

      Will Safe mode correct itself if/when the conditions resolve, or will I need to do something special to make it forget?

      What would you recommend my next step be?
      --Oil is fresh and full. When I removed the top, it was full of oil too.
      --New gaskets? - if so, can you send me a link to the ones you used? There's a lot of Chinese options on Amazon.
      --Is there a way to tell if I messed up the assembly by overtightening?
      --Bite the $170 bullet and order the whole spool assembly? Preferably last scenario obviously.
       
    2. · Registered
      Joined
      ·
      255 Posts
      I decided to tackle the oil leak from the front spool valve assembly on the 2009 Ody EX-L. Bought the gasket set from Amazon (Link) and went to work. To clean off the built up oil sludge prior to removal, I sprayed the area heavily with Purple Power degreaser and brake cleaner, then washed off with hot water. Disassembly was a breeze thanks to the directions in similar posts.

      The new gaskets fit the upper and lower oil control valve well. I applied Permatex 85409 Ultra Rubber gasket sealant to only the upper control valve.

      Put everything back together and now getting the dreaded P3497. The Ody goes in safe mode almost immediately, of 3500RPM limit and cylinder deactivation.

      After researching, I found that there's a specific torque spec of 8Nm (6lbft) for the three bolts. I definitely did not follow this guide and cranked them down tight. I took everything back apart and the gaskets looked to still be ok. The Permatex did not spread anywhere it shouldn't have went from what I could tell. I also verified the vtec (?) valve moves freely and rotates.

      I one-finger tightened the three bolts, yet can't get rid of the P3497. The van stays in Safe mode and can't rev past 3500. Only the CEL is illuminated. I've quadruple checked the electrical connections and verified that at least Cylinder 4 is deactivated.

      Will Safe mode correct itself if/when the conditions resolve, or will I need to do something special to make it forget?

      What would you recommend my next step be?
      --Oil is fresh and full. When I removed the top, it was full of oil too.
      --New gaskets? - if so, can you send me a link to the ones you used? There's a lot of Chinese options on Amazon.
      --Is there a way to tell if I messed up the assembly by overtightening?
      --Bite the $170 bullet and order the whole spool assembly? Preferably last scenario obviously.
      Can you explain your message below since now I am a little nervous about our replacement work a month ago? We did the back spool valve on 2005 Odyssey using very similar procedure that you had done, except we use a thin layer of Honda HT on top of the gaskets with the bolts lightly tightening the for the middle gasket and let it sits for 10-12 hours before fully tighten them. We tighten the bolt as we feel fit and did not use a torque wrench.

      "Put everything back together and now getting the dreaded P3497. The Ody goes in safe mode almost immediately, of 3500RPM limit and cylinder deactivation."

      Did you get the code right away or only when you hit 3500 RPM? Our transmission typically shift between 2500-3000 RPMs these days. I do not think that we hit 3500 RPM yet during the month that we drove the van. No leak and no code, but we drive the van lightly these days under 3000 RPM.

      Thanks
       
    1. · Registered
      Joined
      ·
      166 Posts
      Discussion Starter · #6 ·
      I think i have found the source.
      Its the front spool valve assymbley gasket leaking when the engine starts (or thats when i observed at least).




      Will be putting in new gaskets
      These are correct ones for a 2008 right?

      15815-R70-A01 15845-R70-A01 Cylinder Head Solenoid Valve Gasket VTEC for Honda Vehicles https://www.amazon.com/dp/B07L2VG522/ref=cm_sw_r_cp_api_i_679LCbMVYM51N
       

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