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

Reply
 
Thread Tools Display Modes
Old 22nd July 2018, 17:50   #1
maxi_crawf
Posted a thing or two
 
maxi_crawf's Avatar
 
R75 Saloon Conn CDT SE, MG ZT190+

Join Date: Nov 2006
Location: Kingston-upon-Hull
Posts: 1,960
Thanks: 823
Thanked 426 Times in 274 Posts
Default Idiots guide to checking rad fan speeds

So as above,
I have a 53 plate zt190 with 86K on the clock with the early 3 speed rad fan which when I first got a couple of years ago was T4'd by Trikey and all 3 speeds were working, now I'm not sure if the low speed is, If Trikey was not away on his hols I would arrange for a T4 session to be absolutely certain,
can someone explain to me an Idiot proof way to see if the low speed has failed so that if I need to I can get it sorted out, there is some urgency as I will be doing a Monte Carlo run on the 16th of August and I don't fancy running without low speed, on the other hand I don't want to spend money if it's all in my head and I don't have to
maxi_crawf is offline   Reply With Quote
Old 22nd July 2018, 18:34   #2
suzublu
This is my second home
 
suzublu's Avatar
 
rover 75 1.8 vvc club se wedgwood blue

Join Date: Aug 2009
Location: Seaton Carew
Posts: 26,880
Thanks: 65
Thanked 7,142 Times in 4,642 Posts
Default

Aircon off, press demist button, walk to the front of the car & see if the fan is running
suzublu is online now   Reply With Quote
Old 22nd July 2018, 18:54   #3
maxi_crawf
Posted a thing or two
 
maxi_crawf's Avatar
 
R75 Saloon Conn CDT SE, MG ZT190+

Join Date: Nov 2006
Location: Kingston-upon-Hull
Posts: 1,960
Thanks: 823
Thanked 426 Times in 274 Posts
Default

Is that with the panel completely off or just 'econ' does the engine need to be running?
maxi_crawf is offline   Reply With Quote
Old 22nd July 2018, 19:12   #4
suzublu
This is my second home
 
suzublu's Avatar
 
rover 75 1.8 vvc club se wedgwood blue

Join Date: Aug 2009
Location: Seaton Carew
Posts: 26,880
Thanks: 65
Thanked 7,142 Times in 4,642 Posts
Default

Use Econ mode Roy, engine on
suzublu is online now   Reply With Quote
Old 22nd July 2018, 19:16   #5
maxi_crawf
Posted a thing or two
 
maxi_crawf's Avatar
 
R75 Saloon Conn CDT SE, MG ZT190+

Join Date: Nov 2006
Location: Kingston-upon-Hull
Posts: 1,960
Thanks: 823
Thanked 426 Times in 274 Posts
Default

I'll pop out now, fingers crossed.
maxi_crawf is offline   Reply With Quote
Old 22nd July 2018, 19:24   #6
maxi_crawf
Posted a thing or two
 
maxi_crawf's Avatar
 
R75 Saloon Conn CDT SE, MG ZT190+

Join Date: Nov 2006
Location: Kingston-upon-Hull
Posts: 1,960
Thanks: 823
Thanked 426 Times in 274 Posts
Default

Damn, more expense
next question is; replace brushes or Jules replacement fan?
maxi_crawf is offline   Reply With Quote
Old 22nd July 2018, 21:41   #7
ShaunB
Regular poster
 
MG ZT-T

Join Date: Nov 2016
Location: Wolverton
Posts: 90
Thanks: 14
Thanked 16 Times in 12 Posts
Default

Have a go at replacing the bushes it's not that hard and cheap too , there's a guide on how to do it by arctic on you tube did mine and it now runs slow and quiet with air con on heres what I got the brushes from http://www.engineeringcarbonproducts...on-brushes.php
ShaunB is offline   Reply With Quote
Old 23rd July 2018, 08:43   #8
SD1too
Doesn't do things by halves
 
SD1too's Avatar
 
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model.

Join Date: Mar 2007
Location: Former Middlesex
Posts: 20,265
Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
Default

Quote:
Originally Posted by maxi_crawf View Post
next question is; replace brushes or Jules replacement fan?
That depends upon how long your slow speed has been out of action. Referring to Arctic's excellent pictorial guide, remove the motor end plate and you will see the four brushes. If they are all still in their holders and the commutator is not chewed to pieces then new brushes is all you need (approx £20).

A replacement Jules fan is £200 I believe and requires careful electrical connection to the control box.

Simon
__________________
"Whatever is rightly done, however humble, is noble."
Sir Henry Royce.
SD1too is offline   Reply With Quote
Old 23rd July 2018, 12:22   #9
maxi_crawf
Posted a thing or two
 
maxi_crawf's Avatar
 
R75 Saloon Conn CDT SE, MG ZT190+

Join Date: Nov 2006
Location: Kingston-upon-Hull
Posts: 1,960
Thanks: 823
Thanked 426 Times in 274 Posts
Default

Well to be honest, it was all working when Trikey used his T4 on it but because the gas was low/none existant I've always run it on 'econ' until about 6 weeks ago when I had it regassed and it's not done a lot of miles since then so hopefully I might have dodged the bullet.
maxi_crawf 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 21:04.


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