Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > Technical Help Forum
Register FAQ Image Gallery Members List Calendar Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 5th December 2006, 13:53   #1
soixante-quinze
Avid contributor
 
Rover 75 Saloon

Join Date: Nov 2006
Location: Kilcock
Posts: 141
Thanks: 0
Thanked 2 Times in 1 Post
Default VIS valve

My 2.5 v6 has an annoying 'flat-spot' when accellerating at just under 3000rpm. Once over this point she pulls like a mule. Is this likely to be caused by the VIS valve problem I've read about? If it is a possible cause, then is there anything I can do to confirm this without having to actually break open the VIS valve as per the instruction I've seen in the 'How To' section? Any ideas.
soixante-quinze is offline   Reply With Quote
Old 5th December 2006, 17:35   #2
Keith
This is my second home
 
ZT400

Join Date: Oct 2006
Location: Ellesmere
Posts: 5,948
Thanks: 0
Thanked 43 Times in 29 Posts
Default

Not easily, the best thing to do is dismantle the motor and rotate the gears by hand then conect back to car and turn on the ignition it should move to one of the stops

If you have access to a dealer with Testbook then you can watch it being operated as there is a Test which moves it end to end 4 times

If you are suspicious it is faulty then take the motor apart and check the switches are still soldered in without any breaks around the joints
Keith is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 00:10.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 2006-2023, The Rover 75 & MG ZT Owners Club Ltd