Re: Clapping sound from V12 engine

[Steve Adams <SAdams@spanet.demon.co.uk>]

Peter,

This sound could be coming from a fractured converter drive plate, which 
is worth investigating, because if it shatters while your accelerating 
"un-economically" it'll unload the motor and there'll be bits of V12 all 
over the road!

I've had a fractured drive plate on a Ford, and it was due to a badly 
fitted transmission, running out of alignment and fatiguing the plate 
until it cracked.

> Lately I have started to get a light "metallic clapping sound" from the
> engine in my 1983 Daimler Double Six. Giving full throttle from stand
> still, the clapping sound starts when I have reached a speed of about 30
> mph. By releasing the throttle slightly the sound disappears. I can then
> gently increase the throttle to pick up speed again without the clapping
> sound returning. I only have the clapping sound when giving full
> throttle.. Gentle "economical" driving will not produce any funny sounds
> from the engine. Any idea what it can be?. I occationally like to drive
> "un-economically", but will not do so until I am sure of what is wrong
> with the engine.
> 
> Thanks,
> 
> Peter
> 1983, Daimler Double Six
> 
> Ps. The clapping sound is similar to the sound coming from the inner lid
> on the fuel tanks when going over a road bump. Except it is non-stop
> until releasing the throttle.
> 
> 

--
Steve Adams
SAdams@spanet.demon.co.uk

---

References:

• Clapping sound from V12 engine
• From: "L. Peter Johansson" <lpj@asiaonline.net>

---

• Prev by Date: Re: XJ-6 SIII O2 Sensor
• Next by Date: Re: Surging idle
• Prev by thread: Clapping sound from V12 engine
• Next by thread: Re: Clapping sound from V12 engine
• Index(es):
  • Main
  • Thread