One way vacuum valve conversion. A left over part from Richard’s E36 Compact engine conversion! Blocked off the hole in the intake boot and one of the two holes on the side of the throttle body and placed the one way valve in place of the very complex early E30 type layout. Taken the car for a quick spin on the drive way and all is well!
Idle
After much head scratching we purchased a Gunson gastester with build
in RPM read out. Low and behold it turns out the engine is idling
around 750RPM which is pretty much spot on. Its the gauge that has the
wrong read out. It over reads near the bottom of the scale, sits about
right at 2000RPM and above it under reads.
As it’s overfuelling on idle the mixture needs setting, that’s for another day as I can’t find the manual…. :o)
