Discussion
My Red Rose Idles at 7-800 rpm.
Is this std?
The thing is, at this speed there is a lot of vibration and the engine sounds like it will stall (which it does when just started from cold).
I know that this is not an engine that Mercedes would use and it's character is all the better for it. Unfortunately I have not seen another car in order to draw a comparison.
Is this std?
The thing is, at this speed there is a lot of vibration and the engine sounds like it will stall (which it does when just started from cold).
I know that this is not an engine that Mercedes would use and it's character is all the better for it. Unfortunately I have not seen another car in order to draw a comparison.
Hot idle should be 800-900rpm.
Cold idle should not be below 700rpm.
If you have readings lower than the above, it may just need a tweek, but in general a lowering of idle speed means you valve clearances are closing up and need adjusted ASAP.
Damo M, you might just need your throttle pots balanced, but it could also be a broken engine mount.
cheers
Whitey
Cold idle should not be below 700rpm.
If you have readings lower than the above, it may just need a tweek, but in general a lowering of idle speed means you valve clearances are closing up and need adjusted ASAP.
Damo M, you might just need your throttle pots balanced, but it could also be a broken engine mount.
cheers
Whitey
I think different dealers set the idle at slightly different values. On my standard - non-RR - Tuscan I have had the following
IIRC Peninsular and Racing Green set my cold idle at about 800 (flicked between 7 & 8 on the display) and hot would then be 900-1000.
TVR power have just done a service and cold idle is 700 and hot (water 94 oil 92) is 900 ish. The 700 idle is a bit lumpy but does not last for long. No idea on the stalling front as I have only got it back yesterday and did not use it today.
Bob
IIRC Peninsular and Racing Green set my cold idle at about 800 (flicked between 7 & 8 on the display) and hot would then be 900-1000.
TVR power have just done a service and cold idle is 700 and hot (water 94 oil 92) is 900 ish. The 700 idle is a bit lumpy but does not last for long. No idea on the stalling front as I have only got it back yesterday and did not use it today.
Bob
My car idled at about 800-900 warm or cold for the first week I had it. It went back to StreetTVR to have an occasional high rpm misfire sorted.
They informed me they had adjusted all throttle body pots (excuse me if I have this slightly wrong - didn't fully understand the explanation), it now ticks over at about 1000rpm, both hot or cold. It did sort the misfire out though :-)
Phil.
They informed me they had adjusted all throttle body pots (excuse me if I have this slightly wrong - didn't fully understand the explanation), it now ticks over at about 1000rpm, both hot or cold. It did sort the misfire out though :-)
Phil.
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