| Author | Message | ||
     Barry Brears Frequent User Username: turney_2009 Post Number: 75 Registered: 8-2009 |
Could someone expalin the meaning and function of the following; Fast idle screw; Throttle stop; Viscous coupling. Barry | ||
| Jeffrey McCarthy Prolific User Username: jefmac2003 Post Number: 239 Registered: 5-2007 |
Hi Barry, This is the viscous coupling. Its attached to the radiator fan.   | ||
| Paul Yorke Grand Master Username: paul_yorke Post Number: 694 Registered: 6-2006 |
Fast idle screw; when the choke is on it touches a cam and increases the engine speed while it warms up Throttle stop; normal idling adjustment, where the accelerator linkage bottoms out to give an idle speed. Viscous coupling. heat operated clutch. should freewheel when cold and lock up progressively as it gets hotter. Saves fuel by freewheeling when the car is in motion and air is being pushed through the radiator by the cars speed. Locks up when stuck in traffic. If failing 'off' - car will be OK on a run but overheat in a traffic jam. If failing 'on' it will be very noisy and the engine will sound like it's constantly struggling and underpowered. | ||
| Barry Brears Frequent User Username: turney_2009 Post Number: 77 Registered: 8-2009 |
Thanks Paul so what is the function of a throttle damper and its plunger ? Barry | ||
| Paul Yorke Grand Master Username: paul_yorke Post Number: 696 Registered: 6-2006 |
Supposed to stop it 'slamming' stop too quickley. | ||
| Jan Forrest Prolific User Username: got_one Post Number: 165 Registered: 1-2008 |
The throttle damper mounting broke off The Old Girl (SRH24518) over a year ago and I've never noticed any trouble from the lack of it yet. I can only assume that it's just another unnecessary Crewe device to eliminate a problem that doesn't actually exist! |
