Kv6 Inlet Manifold / Vis Motors

ianfletcher · 27th October 2009, 16:44

I have been getting either a grinding or rattleing noise lately which i which i can hear from inside the car and i think it is coming from the inlet manifold. I have tested the power motor which is working fine but not done the balance one yet. I'm not sure if it is rattleing but if it is and its due to the valves coming away from the actuator arm what kind of revs can i expect to hear it as i hear the sound once i reach 2000 rpm?

nopainnogain · 27th October 2009, 16:48

if it is the inlet,get it fixed asap,im currently running a KV5 motor due to parts of one of the butterflys not wanting to rattle around anymore and re-modelling an inlet valve.

stocktake · 27th October 2009, 17:19

Rattle in the inlet manifold is only caused by worn joints on butterflies. or the rod being disconnected. If your power VIS has failed in the open position this exaggerates the noise.

If your power VIS is working and the wear is slight it can hide the noise totally.

The Balance valve has no bearing on a rattle from a manifold i'm afraid.

Cymrudragon · 27th October 2009, 18:31

Quote:

Originally Posted by stocktake

Rattle in the inlet manifold is only caused by worn joints on butterflies. or the rod being disconnected. If your power VIS has failed in the open position this exaggerates the noise.

If your power VIS is working and the wear is slight it can hide the noise totally.

The Balance valve has no bearing on a rattle from a manifold i'm afraid.

Unfortunatly stocktake is right i had a rattle took vis off to see if the arm is disconected or moving side to side it was. after a couple of weeks it got louder so had to get another manifold, 2 hand of aroraswish he may have another. hope it helps

ianfletcher · 27th October 2009, 20:02

Where can i get a brand new manifold from? I know rimmers have them in stock for £629.34 but there used to be some cheaper ones on ebay for about £550. Was it a member on here that was selling them?

Typhoon190 · 27th October 2009, 20:34

Hi Ian. Sorry if it is the manifold. Only sold you that a few months back.

Power valves seemed ok at the time.

I think E-car parts had them at £479. Not listing them on ebay at the moment but might be worth a try.

http://stores.shop.ebay.co.uk/E-CAR-...0Q2em14?_pgn=1

Sorry.

ianfletcher · 27th October 2009, 20:37

Quote:

Originally Posted by Typhoon190

Hi Ian. Sorry if it is the manifold. Only sold you that a few months back.

Power valves seemed ok at the time.

I think E-car parts had them at £479. Not listing them on ebay at the moment but might be worth a try.

http://stores.shop.ebay.co.uk/E-CAR-...0Q2em14?_pgn=1

Sorry.

Thats who it was that was selling them! Yes it is the manifold you sold me but i'm not surprised its knackered now as i have only had the car for 16 months and that was its 3rd manifold so thats why i'm after a brand new one which should hopefully last me a good few years

27th October 2009, 16:44	#1
ianfletcher I really should get out more....... BMW 1 series Join Date: Oct 2008 Location: Bolton Posts: 2,094 Thanks: 12 Thanked 40 Times in 36 Posts	Kv6 Inlet Manifold / Vis Motors I have been getting either a grinding or rattleing noise lately which i which i can hear from inside the car and i think it is coming from the inlet manifold. I have tested the power motor which is working fine but not done the balance one yet. I'm not sure if it is rattleing but if it is and its due to the valves coming away from the actuator arm what kind of revs can i expect to hear it as i hear the sound once i reach 2000 rpm?

27th October 2009, 17:19	#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	Rattle in the inlet manifold is only caused by worn joints on butterflies. or the rod being disconnected. If your power VIS has failed in the open position this exaggerates the noise. If your power VIS is working and the wear is slight it can hide the noise totally. The Balance valve has no bearing on a rattle from a manifold i'm afraid. __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident

27th October 2009, 20:02	#5
ianfletcher I really should get out more....... BMW 1 series Join Date: Oct 2008 Location: Bolton Posts: 2,094 Thanks: 12 Thanked 40 Times in 36 Posts	Where can i get a brand new manifold from? I know rimmers have them in stock for £629.34 but there used to be some cheaper ones on ebay for about £550. Was it a member on here that was selling them? Last edited by ianfletcher; 27th October 2009 at 20:20..

27th October 2009, 16:48	#2
nopainnogain Avid contributor rover 75 2.0 v6-low 9 second pro street 100e Join Date: Jul 2009 Location: warwickshire Posts: 144 Thanks: 0 Thanked 0 Times in 0 Posts	if it is the inlet,get it fixed asap,im currently running a KV5 motor due to parts of one of the butterflys not wanting to rattle around anymore and re-modelling an inlet valve.

27th October 2009, 20:34	#6
Typhoon190 This is my second home MG ZT-T 190 Monogram Typhoon Join Date: Jan 2009 Location: Oxfordshire Posts: 4,707 Thanks: 328 Thanked 557 Times in 443 Posts	Hi Ian. Sorry if it is the manifold. Only sold you that a few months back. Power valves seemed ok at the time. I think E-car parts had them at £479. Not listing them on ebay at the moment but might be worth a try. http://stores.shop.ebay.co.uk/E-CAR-...0Q2em14?_pgn=1 Sorry.