|
||
|
17th August 2019, 10:00 | #1 |
Newbie
ROVER 75 SALOON Join Date: Aug 2019
Location: CROYDON
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
|
Manifold Flaps
2002 Rover 75 2.5V6 SE Club Auto - 92K miles.
New Member looking for technical help and second opinion. On acceleration car jerking, hesitant then sudden surge with loss of power. Took into my local service station who have done service, repairs and MOTs over the last few years - always seem honest and trustworthy. After free inspection and diagnosis, said it is to do with "manifold flaps" which are disintegrating and would not be financially viable to repair and while the car could be safe to drive for up to another year, it should ultimately be consigned to the knackers yard! I have had car for nearly 15 years and would be grateful for any advice before I bid farewell. |
17th August 2019, 10:11 | #2 |
This is my second home
rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009
Location: Seaton Carew
Posts: 26,920
Thanks: 65
Thanked 7,142 Times in 4,642 Posts
|
Called VIS motors/flaps can be repaired or replaced, don't let your garage tell you otherwise
|
17th August 2019, 10:50 | #3 |
I really should get out more.......
P6B, L550, Imp, F56, Commando Join Date: Nov 2006
Location: Aberdeenshire
Posts: 2,886
Thanks: 352
Thanked 677 Times in 440 Posts
|
A sad indictment on our throw away society.
Secondhand KV6 manifolds are out there if you shop around £100 upwards. Plus approx 1 hour labour to fit. You may also have to replace the VIS motors on the manifold so allow approx £100 for a pair of VIS motors too (actually they can normally be repaired as per suzublu post for much less, but it depends on your technical abilities). Same manifold is also fitted to the Freelander V6, so search breakers for these too. Some folks have opened up the KV6 manifold and removed the noisy internals, however this is not for the faint hearted, and there is a question on the power and efficiency once removed. https://the75andztclub.co.uk/forum/s...Inlet+manifold https://www.island-4x4.co.uk/inlet-m...1l-p-6835.html https://www.devon4x4.com/lkb108021l-...ld-189455.html Last edited by Lovel; 17th August 2019 at 11:05.. |
17th August 2019, 11:00 | #4 | |
Vis Whiz
Rover 75 2.5 auto Saloon Join Date: Jun 2007
Location: LEEDS
Posts: 20,587
Thanks: 2,057
Thanked 3,056 Times in 1,621 Posts
|
Quote:
If the flap that is connected to the Balance Vis has failed you would notice a sustained slight drop in economy or performance depending on the position it has failed in. Get the car on a purpose made T4 diagnostics machine and see what other codes come up besides the Vis motors (Which by the way are almost certainly not working, if you have had the car so long, I can help with that )
__________________
Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident |
|
17th August 2019, 14:19 | #5 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
Location: Former Middlesex
Posts: 20,374
Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
|
Quote:
Michael; despite your faith in your local service station, I'm afraid that they're wrong on this occasion. It's not that they're being dishonest, they're trying to be helpful and guessing what is wrong because they haven't been able to find it. The VIS system will be a mystery to most garages. I have an idea of what the cause might be. It's very common and easily and cheaply rectified. After the first few years of production, the type of fuel filter was changed. Unfortunately the new type is within a two part canister with a screw lid. The lid loosens over time and fuel pressure to the injectors drops. Eventually the car doesn't start at all. The solution is to tighten the two halves again by hand and fit a special plastic clip which was produced by MG Rover to cure this problem. Do not under any circumstances open the canister. I'm told that it's very difficult to reassemble without snagging the 'O' ring seal within and if that happens, the fuel pressure problem will persist or worsen. It just requires tightening and the clip fitting. Of course the fuel filter might not be the culprit but one thing is definite. It's not the VIS actuators. Simon
__________________
"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
|
19th August 2019, 13:15 | #6 |
Newbie
ROVER 75 SALOON Join Date: Aug 2019
Location: CROYDON
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
|
Thanks for your advice. I will now try and see if there is a Rover specialist to give a second opinion and see if it is financially viable.
|
19th August 2019, 13:17 | #7 |
Newbie
ROVER 75 SALOON Join Date: Aug 2019
Location: CROYDON
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
|
Thank you for your advice. Unfortunately my mechanical skills are limited to say the least so I am somewhat at the mercy of the "professionals". I will try and get a second opinion from a Rover specialist if they are still out there!
|
19th August 2019, 13:23 | #8 |
Newbie
ROVER 75 SALOON Join Date: Aug 2019
Location: CROYDON
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
|
Stocktake
Thanks for your reply and advice. Prior to this latest episode there has been a "knocking" or "rattling" sound. If this is the noise you are referring to this could well be the Manifold Flaps. My mechanical skills are limited, so if you have any suggestions or know of any Rover specialists in the London/South East area to get a second opinion and see if it is financially viable to repair. |
19th August 2019, 13:27 | #9 |
Newbie
ROVER 75 SALOON Join Date: Aug 2019
Location: CROYDON
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
|
SD1too - Simon
Thank you for your reply and advice. My mechanical skills are limited. My first thought was that it felt like a fuel blockage, so I might get a second opinion with regard to checking the fuel filter. As you can see from other replies, it may well be viz valves/manifold flaps. |
19th August 2019, 13:56 | #10 |
This is my second home
rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009
Location: Seaton Carew
Posts: 26,920
Thanks: 65
Thanked 7,142 Times in 4,642 Posts
|
Try the Google search function at the top of the page, just a quicky
http://mg-rwservices.co.uk Alternatively https://www.the75andztclub.co.uk/for...24&postcount=1 Last edited by suzublu; 19th August 2019 at 14:00.. |
|
|