closed 4.5 throttle pot reading

[marcus1970]

Can anyone give an expert/educated opinion, on the boundaries of the throttle pot readings for a 4.5 standard cerbera when the butterflies are fully closed. That is, ideally what should the readout be on the laptop and what are the accepted minmum and maximum?

Cheers &...

Thanks in advance.

MB

[copilot]

All trhe help would be appreciated guys. See my thread also.

[marcus1970]

I've now set mine at 14.8 with both the throttles fully closed.

I've adjusted the throttle linkage and apart from at the start when even if you move throttle 2, the pot creeps up a percent without throttle 1 moving when you lift throttle 2 and stop anywhere it matches throttle 1; so I'm quite pleased.

Now to adjust the throttle stop and start her up.

MB

[toadusmodus]

marcus1970 said:

Can anyone give an expert/educated opinion, on the boundaries of the throttle pot readings for a 4.5 standard cerbera when the butterflies are fully closed. That is, ideally what should the readout be on the laptop and what are the accepted minmum and maximum?

Cheers &...

Thanks in advance.

MB

It's all in the help file in the software

"SCREEN 3 - THROTTLE POT SETTING SCREEN

This screen shows the readings from throttle pot 1(at the top of the screen) and
throttle pot 2 (below) in large text.
This enables you to see the throttle pot readings from a large distance when adjusting
the throttle pots.
The throttle pot readings should be set to 15% WHEN THE THROTTLE BUTTERFLIES
ARE COMPLETELY CLOSED (i.e. with the THROTTLE STOP WOUND FULLY IN and with the
LINK ROD REMOVED)

When idling at 950 rpm at normal operating temperature the readings should be 18%+-2%

The throttle pot inputs are very sensitive and may be subject to a certain amount of
electrical noise (+/-2%) THIS IS NORMAL. However if this "noise" is excessive the
ECU may start to add acceleration fuel. If this occurs (observe dTHROTTLE box in the
AFR STATUS SCREEN) check that the HT leads are in good condition,FITTED TO ALL
THE PLUGS CORRECTLY and NOT TIE-WRAPPED TO THE MAIN ENGINE HARNESS.
Change the throttle pot if this fault persists."

[copilot]

All usefull information, but what Marcus is asking is what are the settings for the 4.5? The engines must differ, and the software appears to be relevant to the 4.2 according to other comments I've seen on this site. So does anyone know definitively what the settings should be for the 4.5 with long induction pipes?

[copilot]

Marcus,
Have you had a syncro on yours? If so what are the readings with the throttle stop off?
Cheers
Copilot

[marcus1970]

copilot said:

Marcus,
Have you had a syncro on yours? If so what are the readings with the throttle stop off?
Cheers
Copilot

No - not yet.

MB