VVC engine 'buzz' at 2000 and 3000rpm - MG-Rover.org Forums

mcurtains · 20-05-2002, 13:33

A new buzzing sound has started occuring on my 200BRM. Under power, as the engine passes through 2000rpm there's a brief buzz. It only occurs during a very small range of revs and doesn't do it when blipping the throttle or in 1st gear.

It sometimes does it through 3000rpm, but things get a bit loud above this so I'm not sure if it does it at higher revs.

Any ideas?

Dr Dave · 20-05-2002, 13:46

Exhaust, perhaps?

mcurtains · 20-05-2002, 15:08

Quote:

Dr Dave wrote:
Exhaust, perhaps?

Any way I could test this?

(It's quite a high-pitched buzzing, BTW)

Dr Dave · 20-05-2002, 19:36

Could be an exhaust heatshield - close examination of the exhaust system on a vehicle ramp would uncover this

Otherwise, its just a process of elimination >=(

Steve Taylor · 20-05-2002, 20:02

Quote:

mcurtains wrote:

(It's quite a high-pitched buzzing, BTW)

You don't have an angry wasp trapped in the heater matrix by any chance ?

TheNom · 20-05-2002, 22:14

I seem to remember reading a thread about an additional exhaust / downpipe mounting bracket made by MGR specifically to stop this buzz on the VVC. Unfortunately I cant remember where I saw it???

Dr Dave · 21-05-2002, 08:48

Part No WCU100990 is what you are thinking about; about £5-worth IIRC

Bit fiddly to fit >=( but worth it

jamie · 22-05-2002, 08:29

Quote:

Dr Dave wrote:
Part No WCU100990 is what you are thinking about; about £5-worth IIRC

Bit fiddly to fit >=( but worth it

I have this problems also. Should it be fixed by my dealer????

Dr Dave · 22-05-2002, 08:48

Already there on your ZR, Jamie

jamie · 22-05-2002, 09:43

Quote:

Dr Dave wrote:
Already there on your ZR, Jamie

Any idea's why it makes the "Buzzing" noise. I have taken it to a another engineer and he says it the exhaust housing!!! I also to spoke to my dealer they told me it needed re aligning., this they did and made no diff. Buzz still there 2000rpm. :eyes

20-05-2002, 13:33	#1
mcurtains Registered User Join Date: May 2002 Location: Ipswich Car: MG ZS180 and Rover 75 Tourer Conn.SE Posts: 32	VVC engine 'buzz' at 2000 and 3000rpm A new buzzing sound has started occuring on my 200BRM. Under power, as the engine passes through 2000rpm there's a brief buzz. It only occurs during a very small range of revs and doesn't do it when blipping the throttle or in 1st gear. It sometimes does it through 3000rpm, but things get a bit loud above this so I'm not sure if it does it at higher revs. Any ideas?

20-05-2002, 22:14	#6
TheNom Registered User Join Date: Jan 2002 Location: England Car: Other Manufacturer Posts: 78	Re: VVC engine 'buzz' at 2000 and 3000rpm I seem to remember reading a thread about an additional exhaust / downpipe mounting bracket made by MGR specifically to stop this buzz on the VVC. Unfortunately I cant remember where I saw it???

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Engine buzz on shut down.	eddiesolo	MG ZR / Rover 25, 200 & Streetwise	12	15-09-2008 06:49
420 Engine misfire >3000rpm	aus420	MG ZS / Rover 45 & 400	13	28-05-2008 15:02
rover 25 engine buzz	bandit600	Diesel Forum!	2	25-11-2006 15:57
which tyres are best for my 2000 MGF VVC	memi	MGF and MGTF (Sponsored by MGF Mania)	17	05-07-2006 13:01
Buzz / tizz sound from engine bay 105 ZR	BlueZR	MG ZR / Rover 25, 200 & Streetwise	3	26-06-2006 22:29

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)