Natto
Member
Hi All,
I recently had complete large disa valve shaft failure on my e86 3.0si and just wanted to share my experience.
Having turned my nose up a bit at the ~£300 cost to replace with OEM (as far as I've read, the only thing worth replacing it with), I decided to try out a rebuild kit. Specifically the one from klifex in Ukraine: https://klifex.com/remkomplekt-disa...79114-11617560537-11617522929-bolshaya-lopast
(I am not associated with them in any way)
Really nice quality kit, full aluminium construction with a central solid steel shaft and a more closely fitting oil seal to hopefully prevent ingress in future. Install of this went well and I test assembled the new valve. (plenty of guides for this elsewhere on n52 related forums)
Testing this with ISTA revealed that the valve was only moving slightly in each direction. All research online suggested to me that this meant the motor was kaput. The large amount of oil in the disa casing did support this theory.
So, I thought that it was worth giving anything a try to fix this disa valve before giving in and buying a new or lightly used unit. I sprayed the motor liberally with GT86, which says it can be used for water displacement in electronics. Then I put the motor itself in a vice and ran it backwards and forwards for a while using a benchtop power supply, then reassembled in the disa valve.
It then worked perfectly, actuating open and closed quickly and in one smooth movement. Hope this can help anyone in the same situation! I figure that since a failure of this unit won't leave you stranded, it's worth having a tinker and try fixing it before resorting to replacement.
- Nathan
I recently had complete large disa valve shaft failure on my e86 3.0si and just wanted to share my experience.
Having turned my nose up a bit at the ~£300 cost to replace with OEM (as far as I've read, the only thing worth replacing it with), I decided to try out a rebuild kit. Specifically the one from klifex in Ukraine: https://klifex.com/remkomplekt-disa...79114-11617560537-11617522929-bolshaya-lopast
(I am not associated with them in any way)
Really nice quality kit, full aluminium construction with a central solid steel shaft and a more closely fitting oil seal to hopefully prevent ingress in future. Install of this went well and I test assembled the new valve. (plenty of guides for this elsewhere on n52 related forums)
Testing this with ISTA revealed that the valve was only moving slightly in each direction. All research online suggested to me that this meant the motor was kaput. The large amount of oil in the disa casing did support this theory.
So, I thought that it was worth giving anything a try to fix this disa valve before giving in and buying a new or lightly used unit. I sprayed the motor liberally with GT86, which says it can be used for water displacement in electronics. Then I put the motor itself in a vice and ran it backwards and forwards for a while using a benchtop power supply, then reassembled in the disa valve.
It then worked perfectly, actuating open and closed quickly and in one smooth movement. Hope this can help anyone in the same situation! I figure that since a failure of this unit won't leave you stranded, it's worth having a tinker and try fixing it before resorting to replacement.
- Nathan
Finland
Coventry
