We have a factory o2 system in our A36TC that appears to have no parts available for it. Our Regulator is leaking badly rendering the o2 system INOP. We saw a regulator available on eBay a while back, purchased it, and it was leaking as bad as ours and had to return it.
Are there any options to find a replacement part or fix the leaks in our O2 system? Our A&P says the regulator is not something he can service (and I trust him).