rattling in the air intake pipes

matt_b · 19th September 2009, 14:43

Hi, i've got a 2.0V6 rover, V-reg, 140K miles .. just did some test drive circles, all OK (considering the age and mileage), only there's a strange rattling noise heard form the air intake pipes on the rear top of the engine, like there was a piece of plastic or something caught in there and bouncing from the pipe walls. Has anyone encountered something like this yet?

Regards,

Matt

GreyGhost · 19th September 2009, 14:51

There are two VIS actuators on the left of the inlet manifold. These are the usual culprits. The motor attempts to operate, in failing it re-trys again and again. Sounds just like a rattle.
First order of business, test the VIS actuators and replace as necessary. The top one is the Power VIS, the lower one is the Balance VIS.
Hopefully that is the cause of the rattle. The butterflys that the VIS actuators operate may be damaged in which case you are looking at a new inlet manifold.

The club has VIS tester, or you can attend a local or even the national meet where it is likely that a VIS tester will be available.

NB do not run your engine with a VIS actuator removed under any circumstances.

stocktake · 19th September 2009, 15:23

Hi Matt,

As GG says either VIS motors or inlet manifold. Where are you? somebody near may have a little box of tricks to test your motors.

As GG also said, the club has its own Testbox. Free to use for subscribed members

JohnDotCom · 19th September 2009, 15:31

The Club VIS Tester will be available at the National Meet for those attending.

RN3212 · 19th September 2009, 17:24

Hi Matt B.I've a 2.0 V6 with 67,000 mls on the clock.About Feb I noticed a rattle in the top of the engine,and after searching here I discovered it was probably the sliders in the manifold.Anyway I took off the upward facing motor,and sure enough the slider had come off and was just sitting in the bottom of the chamber.I finally bought a used Manifold off e-bay,after the seller assuring me it was good and tight,with no rattles.I got it for 170.00Euro inc P&P to Rep of Irl,which was a bargain.I fitted it myself in under 3 hours,including a stop for my dinner and 2 heavy showers.It's a bit of a fiddly job,but nothing unusual,the worst bit being removal of the 2 studs at the back,as you'
re working by touch cos you can't see down where they're situated.Mine came with 2 working motors as well.The car now drives brilliantly and the annoying rattle is gone.I'd reckon it was 170.00 Euro very well spent
Pat.

stocktake · 19th September 2009, 18:10

Quote:

Originally Posted by pat hanley

Mine came with 2 working motors as well.The car now drives brilliantly and the annoying rattle is gone.I'd reckon it was 170.00 Euro very well spent
Pat.

Bargain, two VIS motors will cost that alone, you got the manifold for free

matt_b · 19th September 2009, 21:41

Cheers guys, it's really helpful ...
(im kinda embarrassed to be so ignorant about the engines)

stocktake, i'm in scotland - just missed the meeting (do'h!)

stocktake · 20th September 2009, 07:46

Quote:

Originally Posted by matt_b

Cheers guys, it's really helpful ...
(im kinda embarrassed to be so ignorant about the engines)

stocktake, i'm in scotland - just missed the meeting (do'h!)

Hi Matt, we have some very good active and informed members in Scotland. Sure somebody will be along to help soon. If your ever in the Yorkshire area just give us set of hooligans down here a shout

19th September 2009, 14:43	#1
matt_b Newbie Rover 75 Saloon Join Date: Sep 2009 Location: Bathgate Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts	rattling in the air intake pipes Hi, i've got a 2.0V6 rover, V-reg, 140K miles .. just did some test drive circles, all OK (considering the age and mileage), only there's a strange rattling noise heard form the air intake pipes on the rear top of the engine, like there was a piece of plastic or something caught in there and bouncing from the pipe walls. Has anyone encountered something like this yet? Regards, Matt

19th September 2009, 15:23	#3
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,591 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	Hi Matt, As GG says either VIS motors or inlet manifold. Where are you? somebody near may have a little box of tricks to test your motors. As GG also said, the club has its own Testbox. Free to use for subscribed members __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident Last edited by stocktake; 19th September 2009 at 15:56..

19th September 2009, 14:51	#2
GreyGhost Banned 180+ Sport Auto Join Date: Oct 2006 Location: Bedford Middle Level Posts: 17,787 Thanks: 0 Thanked 18 Times in 5 Posts	There are two VIS actuators on the left of the inlet manifold. These are the usual culprits. The motor attempts to operate, in failing it re-trys again and again. Sounds just like a rattle. First order of business, test the VIS actuators and replace as necessary. The top one is the Power VIS, the lower one is the Balance VIS. Hopefully that is the cause of the rattle. The butterflys that the VIS actuators operate may be damaged in which case you are looking at a new inlet manifold. The club has VIS tester, or you can attend a local or even the national meet where it is likely that a VIS tester will be available. NB do not run your engine with a VIS actuator removed under any circumstances.

19th September 2009, 15:31	#4
JohnDotCom * Rover 75 FaceLift Tourer CDTi 170BHP Auto ConnSE 2005 Model Starlight Silver Join Date: Nov 2006 Location: Abergele Posts: 28,735 Thanks: 0 Thanked 6 Times in 5 Posts	The Club VIS Tester will be available at the National Meet for those attending.

19th September 2009, 17:24	#5
RN3212 Gets stuck in Rover 75 Classic SE 2.0V6 Auto Moonstone Green Join Date: Sep 2008 Location: Roscommon Posts: 839 Thanks: 315 Thanked 46 Times in 34 Posts	Hi Matt B.I've a 2.0 V6 with 67,000 mls on the clock.About Feb I noticed a rattle in the top of the engine,and after searching here I discovered it was probably the sliders in the manifold.Anyway I took off the upward facing motor,and sure enough the slider had come off and was just sitting in the bottom of the chamber.I finally bought a used Manifold off e-bay,after the seller assuring me it was good and tight,with no rattles.I got it for 170.00Euro inc P&P to Rep of Irl,which was a bargain.I fitted it myself in under 3 hours,including a stop for my dinner and 2 heavy showers.It's a bit of a fiddly job,but nothing unusual,the worst bit being removal of the 2 studs at the back,as you' re working by touch cos you can't see down where they're situated.Mine came with 2 working motors as well.The car now drives brilliantly and the annoying rattle is gone.I'd reckon it was 170.00 Euro very well spent Pat.

19th September 2009, 21:41	#7
matt_b Newbie Rover 75 Saloon Join Date: Sep 2009 Location: Bathgate Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts	Cheers guys, it's really helpful ... (im kinda embarrassed to be so ignorant about the engines) stocktake, i'm in scotland - just missed the meeting (do'h!)