Safe Speed Forums

The campaign for genuine road safety
It is currently Tue Jun 18, 2019 22:10

All times are UTC [ DST ]




Post new topic Reply to topic  [ 29 posts ]  Go to page Previous  1, 2
Author Message
 Post subject:
PostPosted: Sun Jul 30, 2006 03:24 
Offline
Member
Member

Joined: Fri Apr 09, 2004 14:04
Posts: 2325
Location: The interweb
SafeSpeed wrote:
Homer wrote:
Do any cars even have a belt driven fan any more?


Yes, but possibly more importantly, most cars have a belt driven water pump. (Don't they? I can't remember ever seeing a car engine that didn't have a belt driven water pump - but then my head isn't under bonnets much these days.)


At least the last 7 cars I have owned have had the water pump driven by the timing belt, and if that's slipping then you are in more trouble than a bit of overheating.

The last car I had with a belt driven fan was a Reliant Regal!


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 30, 2006 05:04 
Offline
User
User avatar

Joined: Tue Feb 15, 2005 00:15
Posts: 5232
Location: Windermere
SafeSpeed wrote:
paul w wrote:
Came to the conclusion it was just a bag of shit!


'Fraid so. The worst car I ever drove was a Maestro.

The boot was big, but had a well at the back - slightest bump and it was a right off.
My 2.0 ltr diesel had exceptional road holding - which was good, because once you got it up to speed, you didn't want to slacken off any! Otherwise the only other saving grace was it was easy to work on, and Montego bits fitted from the scrapyard!

I once took a learner driver over Wrynose in the snow with a view to teaching driving in poor conditions on steep hairpins.
Poor girl was traumatised by the time we reached the Duddon turn off - but not as much as the passengers in the back.
Passed her test first time though, and proved to be up to the task, just lacking confidence initially.
The trouble with Hardknott is nobody teaches you how to cope, you end up teaching yourself! :oops:

_________________
Time to take responsibility for our actions.. and don't be afraid of speaking out!


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 30, 2006 10:19 
Offline
Site Admin
User avatar

Joined: Sat Mar 06, 2004 06:46
Posts: 16903
Location: Safe Speed
Homer wrote:
At least the last 7 cars I have owned have had the water pump driven by the timing belt, and if that's slipping then you are in more trouble than a bit of overheating.


Really? :shock: So a water pump bearing failure might kill the whole engine? Are these French cars?

_________________
Paul Smith
Our scrap speed cameras petition got over 28,000 sigs
The Safe Speed campaign demands a return to intelligent road safety


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 30, 2006 20:51 
Offline
Member
Member

Joined: Thu Mar 11, 2004 00:24
Posts: 2400
Location: Kendal, Cumbria
SafeSpeed wrote:
Homer wrote:
At least the last 7 cars I have owned have had the water pump driven by the timing belt, and if that's slipping then you are in more trouble than a bit of overheating.


Really? :shock: So a water pump bearing failure might kill the whole engine? Are these French cars?

Vauxhall FWD engine units have had cambelt driven water pumps since c.1980! and yes, if the pump seizes it does indeed strip the teeth off the belt then set about destroying valves... :roll:

Fortunately it's pretty rare that this happens. Belt failure is generally due to scrimping on the service intervals for renewing them.

_________________
CSCP Latin for beginners...
Ticketo ergo sum : I scam therefore I am!


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 30, 2006 21:10 
Offline
Member
Member
User avatar

Joined: Thu Apr 15, 2004 09:16
Posts: 3655
JT wrote:
Fortunately it's pretty rare that this happens. Belt failure is generally due to scrimping on the service intervals for renewing them.


Same as the Ford CVH unit fitted since 1980 I have seen a water pump bearing failure throw a belt off....exit one set of inlet valves.

_________________
Speed camera policy Kills


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 30, 2006 21:54 
Offline
Member
Member

Joined: Wed Feb 16, 2005 18:54
Posts: 4036
Location: Cumbria
Yes, a knackered water pump bearing could easily cause a timing belt to fail in many cars but to be honest, the pumps usually leak long before there is enough play in the bearing to loose the belt - and make a noise. It's rare to find a water pump driven by the toothed side of the belt - most are driven on the flat side. If someone neglects their antifreeze on a car where the water pump is driven by the toother side - they don't usually do it a second time!


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 30, 2006 22:45 
Offline
Member
Member
User avatar

Joined: Thu Apr 15, 2004 09:16
Posts: 3655
Mole wrote:
It's rare to find a water pump driven by the toothed side of the belt -


The Ford CVH uses the toothed side.
Image

_________________
Speed camera policy Kills


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 30, 2006 22:57 
Offline
Site Admin
User avatar

Joined: Sat Mar 06, 2004 06:46
Posts: 16903
Location: Safe Speed
JT wrote:
SafeSpeed wrote:
Homer wrote:
At least the last 7 cars I have owned have had the water pump driven by the timing belt, and if that's slipping then you are in more trouble than a bit of overheating.


Really? :shock: So a water pump bearing failure might kill the whole engine? Are these French cars?

Vauxhall FWD engine units...


Of course! Front wheel drive, transverse engine. It's hard to lay things out properly when the engine is facing the wrong direction!

And since I've been avoiding front wheel drive like the plague, I've never come across it. :)

_________________
Paul Smith
Our scrap speed cameras petition got over 28,000 sigs
The Safe Speed campaign demands a return to intelligent road safety


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jul 31, 2006 21:59 
Offline
Member
Member

Joined: Wed Feb 16, 2005 18:54
Posts: 4036
Location: Cumbria
Gizmo wrote:
Mole wrote:
It's rare to find a water pump driven by the toothed side of the belt -


The Ford CVH uses the toothed side.
Image


Indeed - but they're getting a bit thin on the ground now. It's a 20 year old design! I think they learned the hard way about the freezing problem!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 29 posts ]  Go to page Previous  1, 2

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group
[ Time : 0.209s | 11 Queries | GZIP : Off ]