Wheel Knock
- Thread starter voyager
- Start date
Hi Emery,
I fear that it will be a wheel bearing. I just
did the brakes on my dodge ram. WHAT a pain! Took
almost 10 hrs. Couldnt get the rotors off.
Guess I'll get the manual out and see whats
involved in replacing or repacking the wheel
bearings. I'll also check the brakes.
See Ya,
Rob Teed 74 Painted Desert
> -----Original Message-----
> From: owner-gmcmotorhome
> [mailto
wner-gmcmotorhome]On Behalf Of
> EMERYSTORA
> Sent: Tuesday, April 20, 1999 12:25 AM
> To: gmcmotorhome
> Subject: Re: GMC: Re:Wheel Knock
>
>
>
>
> be a " Knock " in the left front wheel. The
> brake rotors are quite rusted on the surface...
> could this be the cause? It makes the stearing
> wheel shake abit.
> Rob Teed 74 Painted Desert
> >>
>
> Rob -- first pull the hubcap from the front wheels. Often one
> will give a
> "knock" sound especially at low speeds. The brake rotors often
> get rusted if
> the motorhome is sitting for a while. After you apply the brakes
> the brake
> pads will scour them off. The steering wheel shaking could mean that the
> pads are gripping erratically. It could be caused by dirt or
> rust. Take it
> for a longer drive and hit the brakes a few times and see if it
> goes away.
> If it doesn't you better pull the front wheels and check out the
> rotors and
> brake pads. The symptoms could also be a wheel bearing going bad. This
> would give a noise and could cause a wheel shimmy.
>
> Emery Stora
> 77 Kingsley
> Santa Fe, NM
>
I fear that it will be a wheel bearing. I just
did the brakes on my dodge ram. WHAT a pain! Took
almost 10 hrs. Couldnt get the rotors off.
Guess I'll get the manual out and see whats
involved in replacing or repacking the wheel
bearings. I'll also check the brakes.
See Ya,
Rob Teed 74 Painted Desert
> -----Original Message-----
> From: owner-gmcmotorhome
> [mailto
wner-gmcmotorhome]On Behalf Of> EMERYSTORA
> Sent: Tuesday, April 20, 1999 12:25 AM
> To: gmcmotorhome
> Subject: Re: GMC: Re:Wheel Knock
>
>
>
>
> be a " Knock " in the left front wheel. The
> brake rotors are quite rusted on the surface...
> could this be the cause? It makes the stearing
> wheel shake abit.
> Rob Teed 74 Painted Desert
> >>
>
> Rob -- first pull the hubcap from the front wheels. Often one
> will give a
> "knock" sound especially at low speeds. The brake rotors often
> get rusted if
> the motorhome is sitting for a while. After you apply the brakes
> the brake
> pads will scour them off. The steering wheel shaking could mean that the
> pads are gripping erratically. It could be caused by dirt or
> rust. Take it
> for a longer drive and hit the brakes a few times and see if it
> goes away.
> If it doesn't you better pull the front wheels and check out the
> rotors and
> brake pads. The symptoms could also be a wheel bearing going bad. This
> would give a noise and could cause a wheel shimmy.
>
> Emery Stora
> 77 Kingsley
> Santa Fe, NM
>
>I drove the coach around the block. There seems to
> be a " Knock " in the left front wheel.
Sometimes a tire that sits with weight on it in one position will get a bit
of a flat spot. I'd describe the result as a thump. If this is the case the
thump should go away after a while fo driving.
The
> brake rotors are quite rusted on the surface...
> could this be the cause? It makes the stearing
> wheel shake abit.
Once per revolution? If so and it's not a metallic sound, you might drive a
bit at low speed to see if the problem is caused by a flat spot. Also,
check to make certain that your wheels are centered on the hub.
Henry
Henry Davis Consulting, Inc / new product consulting
PO Box 1270 / product readiness reviews
Soquel, Ca 95073 / IP reviews
ph: (831) 462-5199 / full service marketing
fax: (831) 462-5198
http://www.henry-davis.com/ http://www.henry-davis.com
> be a " Knock " in the left front wheel.
Sometimes a tire that sits with weight on it in one position will get a bit
of a flat spot. I'd describe the result as a thump. If this is the case the
thump should go away after a while fo driving.
The
> brake rotors are quite rusted on the surface...
> could this be the cause? It makes the stearing
> wheel shake abit.
Once per revolution? If so and it's not a metallic sound, you might drive a
bit at low speed to see if the problem is caused by a flat spot. Also,
check to make certain that your wheels are centered on the hub.
Henry
Henry Davis Consulting, Inc / new product consulting
PO Box 1270 / product readiness reviews
Soquel, Ca 95073 / IP reviews
ph: (831) 462-5199 / full service marketing
fax: (831) 462-5198
http://www.henry-davis.com/ http://www.henry-davis.com
If you are just taking it out of storage and it did not have the knock
before you stored it, its not the bearing. caliper is probably seized.
>Hi Emery,
> I fear that it will be a wheel bearing. I just
> did the brakes on my dodge ram. WHAT a pain! Took
> almost 10 hrs. Couldnt get the rotors off.
> Guess I'll get the manual out and see whats
> involved in replacing or repacking the wheel
> bearings. I'll also check the brakes.
> See Ya,
> Rob Teed 74 Painted Desert
>
>> -----Original Message-----
>> From: owner-gmcmotorhome
>> [mailtowner-gmcmotorhome]On Behalf Of
>> EMERYSTORA
>> Sent: Tuesday, April 20, 1999 12:25 AM
>> To: gmcmotorhome
>> Subject: Re: GMC: Re:Wheel Knock
>>
>>
>>
>>
>> > be a " Knock " in the left front wheel. The
>> brake rotors are quite rusted on the surface...
>> could this be the cause? It makes the stearing
>> wheel shake abit.
>> Rob Teed 74 Painted Desert
>> >>
>>
>> Rob -- first pull the hubcap from the front wheels. Often one
>> will give a
>> "knock" sound especially at low speeds. The brake rotors often
>> get rusted if
>> the motorhome is sitting for a while. After you apply the brakes
>> the brake
>> pads will scour them off. The steering wheel shaking could mean that the
>> pads are gripping erratically. It could be caused by dirt or
>> rust. Take it
>> for a longer drive and hit the brakes a few times and see if it
>> goes away.
>> If it doesn't you better pull the front wheels and check out the
>> rotors and
>> brake pads. The symptoms could also be a wheel bearing going bad. This
>> would give a noise and could cause a wheel shimmy.
>>
>> Emery Stora
>> 77 Kingsley
>> Santa Fe, NM
>>
>
>
>
Tom & Marg Warner
Vernon Center NY
1976 palmbeach
before you stored it, its not the bearing. caliper is probably seized.
>Hi Emery,
> I fear that it will be a wheel bearing. I just
> did the brakes on my dodge ram. WHAT a pain! Took
> almost 10 hrs. Couldnt get the rotors off.
> Guess I'll get the manual out and see whats
> involved in replacing or repacking the wheel
> bearings. I'll also check the brakes.
> See Ya,
> Rob Teed 74 Painted Desert
>
>> -----Original Message-----
>> From: owner-gmcmotorhome
>> [mailto
wner-gmcmotorhome]On Behalf Of>> EMERYSTORA
>> Sent: Tuesday, April 20, 1999 12:25 AM
>> To: gmcmotorhome
>> Subject: Re: GMC: Re:Wheel Knock
>>
>>
>>
>>
>> > be a " Knock " in the left front wheel. The
>> brake rotors are quite rusted on the surface...
>> could this be the cause? It makes the stearing
>> wheel shake abit.
>> Rob Teed 74 Painted Desert
>> >>
>>
>> Rob -- first pull the hubcap from the front wheels. Often one
>> will give a
>> "knock" sound especially at low speeds. The brake rotors often
>> get rusted if
>> the motorhome is sitting for a while. After you apply the brakes
>> the brake
>> pads will scour them off. The steering wheel shaking could mean that the
>> pads are gripping erratically. It could be caused by dirt or
>> rust. Take it
>> for a longer drive and hit the brakes a few times and see if it
>> goes away.
>> If it doesn't you better pull the front wheels and check out the
>> rotors and
>> brake pads. The symptoms could also be a wheel bearing going bad. This
>> would give a noise and could cause a wheel shimmy.
>>
>> Emery Stora
>> 77 Kingsley
>> Santa Fe, NM
>>
>
>
>
Tom & Marg Warner
Vernon Center NY
1976 palmbeach
Hi Henry,
I'm going to pull the rotors off, get them turned
replace the pads. Check the wheel bearings.
Thats what I'm going to do.I have an autozone
nearby. What parts might I need to do this job?
Anyone have the part numbers?
Thanks,
Rob Teed 74 Painted Desert
> -----Original Message-----
> From: owner-gmcmotorhome
> [mailtowner-gmcmotorhome]On Behalf Of Henry Davis
> Sent: Tuesday, April 20, 1999 1:25 AM
> To: gmcmotorhome
> Subject: Re:GMC: Wheel Knock
>
>
> >I drove the coach around the block. There seems to
> > be a " Knock " in the left front wheel.
>
> Sometimes a tire that sits with weight on it in one position will
> get a bit
> of a flat spot. I'd describe the result as a thump. If this is
> the case the
> thump should go away after a while fo driving.
>
> The
> > brake rotors are quite rusted on the surface...
> > could this be the cause? It makes the stearing
> > wheel shake abit.
>
> Once per revolution? If so and it's not a metallic sound, you
> might drive a
> bit at low speed to see if the problem is caused by a flat spot. Also,
> check to make certain that your wheels are centered on the hub.
>
> Henry
>
>
> Henry Davis Consulting, Inc / new product consulting
> PO Box 1270 / product readiness reviews
> Soquel, Ca 95073 / IP reviews
> ph: (831) 462-5199 / full service marketing
> fax: (831) 462-5198
> http://www.henry-davis.com/ http://www.henry-davis.com
>
>
I'm going to pull the rotors off, get them turned
replace the pads. Check the wheel bearings.
Thats what I'm going to do.I have an autozone
nearby. What parts might I need to do this job?
Anyone have the part numbers?
Thanks,
Rob Teed 74 Painted Desert
> -----Original Message-----
> From: owner-gmcmotorhome
> [mailto
wner-gmcmotorhome]On Behalf Of Henry Davis> Sent: Tuesday, April 20, 1999 1:25 AM
> To: gmcmotorhome
> Subject: Re:GMC: Wheel Knock
>
>
> >I drove the coach around the block. There seems to
> > be a " Knock " in the left front wheel.
>
> Sometimes a tire that sits with weight on it in one position will
> get a bit
> of a flat spot. I'd describe the result as a thump. If this is
> the case the
> thump should go away after a while fo driving.
>
> The
> > brake rotors are quite rusted on the surface...
> > could this be the cause? It makes the stearing
> > wheel shake abit.
>
> Once per revolution? If so and it's not a metallic sound, you
> might drive a
> bit at low speed to see if the problem is caused by a flat spot. Also,
> check to make certain that your wheels are centered on the hub.
>
> Henry
>
>
> Henry Davis Consulting, Inc / new product consulting
> PO Box 1270 / product readiness reviews
> Soquel, Ca 95073 / IP reviews
> ph: (831) 462-5199 / full service marketing
> fax: (831) 462-5198
> http://www.henry-davis.com/ http://www.henry-davis.com
>
>
>
> I'm going to pull the rotors off, get them turned
> replace the pads.
Rob,
Don't turn the rotors unless they really need it. Those puppies are
expensive and unless they're seriously grooved, let 'em be.
My $.02,
Patrick
- --
Patrick Flowers
Mailto
atrick
The GMC Motorhome Page
http://www.gmcmotorhome.com
> I'm going to pull the rotors off, get them turned
> replace the pads.
Rob,
Don't turn the rotors unless they really need it. Those puppies are
expensive and unless they're seriously grooved, let 'em be.
My $.02,
Patrick
- --
Patrick Flowers
Mailto
atrickThe GMC Motorhome Page
http://www.gmcmotorhome.com
OK, Thanks for the tip. I think there just
real rusty.
Rob Teed 74 Painted Desert
> -----Original Message-----
> From: owner-gmcmotorhome
> [mailtowner-gmcmotorhome]On Behalf Of Patrick Flowers
> Sent: Tuesday, April 20, 1999 8:40 PM
> To: gmcmotorhome
> Subject: Re: GMC: Wheel Knock
>
>
> >
> > I'm going to pull the rotors off, get them turned
> > replace the pads.
>
> Rob,
>
> Don't turn the rotors unless they really need it. Those puppies are
> expensive and unless they're seriously grooved, let 'em be.
>
> My $.02,
> Patrick
> --
> Patrick Flowers
> Mailtoatrick
>
> The GMC Motorhome Page
> http://www.gmcmotorhome.com
>
real rusty.
Rob Teed 74 Painted Desert
> -----Original Message-----
> From: owner-gmcmotorhome
> [mailto
wner-gmcmotorhome]On Behalf Of Patrick Flowers> Sent: Tuesday, April 20, 1999 8:40 PM
> To: gmcmotorhome
> Subject: Re: GMC: Wheel Knock
>
>
> >
> > I'm going to pull the rotors off, get them turned
> > replace the pads.
>
> Rob,
>
> Don't turn the rotors unless they really need it. Those puppies are
> expensive and unless they're seriously grooved, let 'em be.
>
> My $.02,
> Patrick
> --
> Patrick Flowers
> Mailto
atrick>
> The GMC Motorhome Page
> http://www.gmcmotorhome.com
>
>Hi Henry,
> I'm going to pull the rotors off, get them turned
> replace the pads. Check the wheel bearings.
If you check them you may want to replace them. I my conversations with the
Timkin engineers it's become pretty clear that fingerprints and dirt can
seriously decrease the bearing life. So, I replace the bearings whenver
they "need" to be inspected. I know that I may be throwing a few $$$ out
the window, but that's better than a breakdown.
If you haven't already done a front bearing job, you should probably
consider it unless you have the prior owner's records and KNOW that the
folks doing the work did it right.
> Thats what I'm going to do.I have an autozone
> nearby. What parts might I need to do this job?
You'll need the bearing tools. I've chosen to buy bearings from Cinnabar in
the theory that they are most likely to getr the right tolerance bearings.
Timken ships them a special selection from their standard bearings.
Unfortunately they keep the same bearing number wiht no additional
designation. So ... you can't tell from the box whether or not you have the
right bearings.
Henry
Henry Davis Consulting, Inc / new product consulting
PO Box 1270 / product readiness reviews
Soquel, Ca 95073 / IP reviews
ph: (831) 462-5199 / full service marketing
fax: (831) 462-5198
http://www.henry-davis.com/ http://www.henry-davis.com
> I'm going to pull the rotors off, get them turned
> replace the pads. Check the wheel bearings.
If you check them you may want to replace them. I my conversations with the
Timkin engineers it's become pretty clear that fingerprints and dirt can
seriously decrease the bearing life. So, I replace the bearings whenver
they "need" to be inspected. I know that I may be throwing a few $$$ out
the window, but that's better than a breakdown.
If you haven't already done a front bearing job, you should probably
consider it unless you have the prior owner's records and KNOW that the
folks doing the work did it right.
> Thats what I'm going to do.I have an autozone
> nearby. What parts might I need to do this job?
You'll need the bearing tools. I've chosen to buy bearings from Cinnabar in
the theory that they are most likely to getr the right tolerance bearings.
Timken ships them a special selection from their standard bearings.
Unfortunately they keep the same bearing number wiht no additional
designation. So ... you can't tell from the box whether or not you have the
right bearings.
Henry
Henry Davis Consulting, Inc / new product consulting
PO Box 1270 / product readiness reviews
Soquel, Ca 95073 / IP reviews
ph: (831) 462-5199 / full service marketing
fax: (831) 462-5198
http://www.henry-davis.com/ http://www.henry-davis.com
