mglowe
Member
- Joined
- Jun 6, 2007
- Messages
- 405
- Reaction score
- 1
- Points
- 0
- Location
- Ames, IA USA
I think I correctly completed my first Throttle Body Sync., though I have some questions that hopefully someone could answer.
1) The service manual does not state how the sync hoses are numbered. May I assume cylinder hoses were assigned, throttle body #4 [long - pink band] with #3 short (clutch side), and #1 [long - pink band] with #2 short (throttle side)?
2) I have the Morgan Carbtune Pro which is marked in centimeters of mercury pressure (cmHg). The service manual calls for the vacuum pressure "Intake vacuum 29.0 kPa (8.6 inHg) (218 mmHg)", so I converted 218 mmHg = 21.8 cmHg. Problem was I could never reach at idle, body #1 as standard, 21.8 cmHg. Could this be due to related to question 1?
Anyway, I adjusted #1 to a sweet spot by ear...
Other than that... during the initial view #2 and #3 were evenly lower than #1 and #4 by about 10 cmHg. I was able to even all at idle and oddly at 4000 RPM all remained even. Oddly because I was thinking at idle there would be differences than at speed.
Comments?
1) The service manual does not state how the sync hoses are numbered. May I assume cylinder hoses were assigned, throttle body #4 [long - pink band] with #3 short (clutch side), and #1 [long - pink band] with #2 short (throttle side)?
2) I have the Morgan Carbtune Pro which is marked in centimeters of mercury pressure (cmHg). The service manual calls for the vacuum pressure "Intake vacuum 29.0 kPa (8.6 inHg) (218 mmHg)", so I converted 218 mmHg = 21.8 cmHg. Problem was I could never reach at idle, body #1 as standard, 21.8 cmHg. Could this be due to related to question 1?
Anyway, I adjusted #1 to a sweet spot by ear...
Other than that... during the initial view #2 and #3 were evenly lower than #1 and #4 by about 10 cmHg. I was able to even all at idle and oddly at 4000 RPM all remained even. Oddly because I was thinking at idle there would be differences than at speed.
Comments?