Resistance to turning from wheel - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 04-10-2007, 03:32 AM   #1
Team GasMisers5!
 
landspeed's Avatar
 
Join Date: Nov 2006
Posts: 440
Country: United States
Resistance to turning from wheel

I was doing some work on my car recently, and noticed that one of the rear wheels seems to have quite a bit of resistance to turning. If I spin it with one hand, it generally stops in 1 second, and stops quite 'suddenly'. Also it needs a fair bit of force to just turn it at all.

I think it has been like this for ages, because driving my Micra today (just got it back on the road!), I am amazed at how much faster it speeds up going down hills with the engine off and so on.

Do you think the brakes binding to the degree above would actually make a difference to coasting ability or not? (As, the force you can apply by hand is quite low anyway so shouldn't make much difference?). I'm seriously considering getting a new set of rear brakes, as I doubt the discs will make it through the next MOT test anyway.

I will post a video when I have time - I took one on my phone
__________________

__________________

Team GasMisers5 - #1 for first three rounds of the original GS Fuel Economy Challenge
Miles displaced by e-bike since 1 Jan 2008: 62.6 (0 kWh used)
Hypomiler
landspeed is offline   Reply With Quote
Old 04-10-2007, 05:33 AM   #2
Registered Member
 
Join Date: Oct 2005
Posts: 1,978
Country: United States
Had the Same Problem

I had the same problem not too long ago.

Thread.

Are you smelling any burnt-brake type smells or notice any excess heat from that wheel? If not, it could be a bearing. Are there lubrication points, or is it a sealed system?

RH77
__________________

__________________
rh77 is offline   Reply With Quote
Old 04-10-2007, 05:58 AM   #3
Team GasMisers5!
 
landspeed's Avatar
 
Join Date: Nov 2006
Posts: 440
Country: United States
Quote:
Originally Posted by rh77 View Post
I had the same problem not too long ago.

Thread.

Are you smelling any burnt-brake type smells or notice any excess heat from that wheel? If not, it could be a bearing. Are there lubrication points, or is it a sealed system?

RH77
I sometimes smell a slight burnt-brake smell, but not always. If there has been a frost, that calipers will *always* seize, and give off smoke etc until it defrosts!.

What I think I will do is remove the caliper (but leave it connected to the brake line), and see how the wheel spins then. If it is the bearing I will replace it, but, if you saw my disks + caliper (the caliper is encrusted with rust, and disks have two levels... The outer 33% are rusty, lumpy, and seem to be not used anymore (the pads have worn more here), the inside is OK.

I've got some good quotes for calipers + discs (I also have 1 spare rear caliper anyway), so, I think I am going to go for a full rear-brake-system refurbishment

From my description, do you think it will make much difference to the economy?
__________________

Team GasMisers5 - #1 for first three rounds of the original GS Fuel Economy Challenge
Miles displaced by e-bike since 1 Jan 2008: 62.6 (0 kWh used)
Hypomiler
landspeed is offline   Reply With Quote
Old 04-10-2007, 06:50 AM   #4
Registered Member
 
mrmad's Avatar
 
Join Date: Mar 2007
Posts: 386
Country: United States
Any brake dragging could cause effiency problems. It does sound like your brakes are dragging. Might not be a bad idea to check the front ones as well.
mrmad is offline   Reply With Quote
Old 04-10-2007, 08:33 AM   #5
Registered Member
 
Join Date: Oct 2005
Posts: 1,978
Country: United States
Should Help

Quote:
Originally Posted by landspeed View Post
From my description, do you think it will make much difference to the economy?
Most certainly. Based on my own experience, I was having a tough go of it. Any resistance will decrease FE. Best of luck with the brake job.

RH77
__________________
rh77 is offline   Reply With Quote
Old 04-10-2007, 09:39 AM   #6
Registered Member
 
MetroMPG's Avatar
 
Join Date: Dec 2005
Posts: 4,223
Country: United States
Brake drag is definitely worth fixing. I had some on my first Firefly, and after I replaced the bad caliper, fuel economy improved measurably.
MetroMPG is offline   Reply With Quote
Old 04-10-2007, 10:09 AM   #7
Semi-retired OPEC Buster
 
BeeUU's Avatar
 
Join Date: Jan 2007
Posts: 200
Country: United States
Go team OB!

Quote:
Originally Posted by landspeed View Post
From my description, do you think it will make much difference to the economy?
Naaaa dont bother. Really, you are fine, not worth the time.
__________________
B W


BeeUU is offline   Reply With Quote
Old 04-10-2007, 10:11 AM   #8
Registered Member
 
MetroMPG's Avatar
 
Join Date: Dec 2005
Posts: 4,223
Country: United States
Right, right! That's what I meant to say too.

Actually, the extra heat generated by dragging brakes is a good thing. Heat rises, so it makes your car lighter. That will surely save fuel.

This FE competition sure keeps us on our toes, looking for every possible benefit and sharing knowledge openly with the field.
MetroMPG is offline   Reply With Quote
Old 04-10-2007, 10:28 AM   #9
Semi-retired OPEC Buster
 
BeeUU's Avatar
 
Join Date: Jan 2007
Posts: 200
Country: United States
Quote:
Originally Posted by MetroMPG View Post
Right, right! That's what I meant to say too.

Actually, the extra heat generated by dragging brakes is a good thing. Heat rises, so it makes your car lighter. That will surely save fuel.
Plus with the extra heat you dont have to use your heater as much!!
__________________
B W


BeeUU is offline   Reply With Quote
Old 04-10-2007, 10:34 AM   #10
Semi-retired OPEC Buster
 
BeeUU's Avatar
 
Join Date: Jan 2007
Posts: 200
Country: United States
Quote:
Originally Posted by MetroMPG View Post
This FE competition sure keeps us on our toes, looking for every possible benefit and sharing knowledge openly with the field.
It has helped me a bit. It is great that there are so many other nutters out there willing to experiment for the good of efficiency.
__________________

__________________
B W


BeeUU 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
AC on and fuel milage tdisr General Fuel Topics 5 05-24-2009 01:25 AM
Ability to comment on Fuel Tips randomic Fuelly Web Support and Community News 4 08-22-2008 12:25 AM
Graphs itsastationwagon Fuelly Web Support and Community News 2 08-13-2008 03:04 PM
195* Tstat SVOboy Experiments, Modifications and DIY 12 04-17-2007 08:27 AM
Sweden calling ! GasSavers_elg Introduce Yourself - New member Welcome 3 10-03-2006 12:17 PM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 05:48 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.