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Hub temperature checks with IR thermometer [message #366955]

Sat, 25 September 2021 19:14

Greg C.

Messages: 224
Registered: October 2019
Location: Knoxville, TN

Karma: 0

Senior Member

I'd like to take a poll on hub temperatures from those of you who check these things.

I just returned from the Dixielanders/Sunshine Statesmen Rally in Crossville, TN. Here are the particulars:

70 degrees ambient temp, sunny day, 67 miles, primarily interstate, at 55 to 65 MPH. Driving east into the sun, so wheels were not exposed to direct sunlight. Minimal braking last several miles.

Checking temperatures on my Eagle aluminum wheels, just above the lug nuts, from a distance of about 6 inches.

Driver front: 90 degrees
Pass. front: 95 degrees (new Lenzi hub and knuckle assy.)

Driver mid: 85 degrees
Driver rear: 80 degrees

Pass mid: 86 degrees
Pass rear:88 degrees

How does this compare with everyone else's data?

Greg Crawford KM4ZCR Knoxville, TN "Ruby Sue" 1977 Royale Rear Bath 403 Engine American Eagle Wheels Early Version Alex Sirum Quad bags

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[GMCnet] Re: Hub temperature checks with IR thermometer [message #366956 is a reply to message #366955]

Sat, 25 September 2021 19:36

Ken Henderson

Messages: 8726
Registered: March 2004
Location: Americus, GA

Karma: 9

Senior Member

Greg,

I don't have any records to compare with your results, but after 23 years
of GMCing, I'd rate those temperatures "Great". They sound about like what
I'd expect on my heavy 23'.

Now, tell us about the rally: How many coaches, etc.? We'd sure have
liked to be there with Y'All, but just a little early for us to get out
yet: SHE's still "skittish". I hadn't planned to make it because of a
family reunion conflict. After that got cancelled at the last minute,
I just couldn't do it.

Ken H.

On Sat, Sep 25, 2021 at 8:14 PM Greg Crawford
wrote:

> I'd like to take a poll on hub temperatures from those of you who check
> these things.
>
> I just returned from the Dixielanders/Sunshine Statesmen Rally in
> Crossville, TN. Here are the particulars:
>
> 70 degrees ambient temp, sunny day, 67 miles, primarily interstate, at 55
> to 65 MPH. Driving east into the sun, so wheels were not exposed to direct
> sunlight. Minimal braking last several miles.
>
> Checking temperatures on my Eagle aluminum wheels, just above the lug
> nuts, from a distance of about 6 inches.
>
> Driver front: 90 degrees
> Pass. front: 95 degrees (new Lenzi hub and knuckle assy.)
>
> Driver mid: 85 degrees
> Driver rear: 80 degrees
>
> Pass mid: 86 degrees
> Pass rear:88 degrees
>
> How does this compare with everyone else's data?
> --
> Greg Crawford
> KM4ZCR
> Knoxville, TN
>
> "Ruby Sue"
> 1977 Royale
> Rear Bath
> 403 Engine
> American Eagle Wheels
> Early Version Alex Sirum Quad bags
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach

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[GMCnet] Re: Hub temperature checks with IR thermometer [message #366957 is a reply to message #366956]

Sat, 25 September 2021 20:12

James Hupy

Messages: 6806
Registered: May 2010

Karma: -62

Senior Member

I usually shoot through the holes in the Alcoas onto the hubs or rotors. I
find the temps higher there than on the aluminum wheels. But your temps
sound great to me.
Jim Hupy
Salem Oregon

On Sat, Sep 25, 2021, 5:37 PM Ken Henderson wrote:

> Greg,
>
> I don't have any records to compare with your results, but after 23 years
> of GMCing, I'd rate those temperatures "Great". They sound about like what
> I'd expect on my heavy 23'.
>
> Now, tell us about the rally: How many coaches, etc.? We'd sure have
> liked to be there with Y'All, but just a little early for us to get out
> yet: SHE's still "skittish". I hadn't planned to make it because of a
> family reunion conflict. After that got cancelled at the last minute,
> I just couldn't do it.
>
> Ken H.
>
> On Sat, Sep 25, 2021 at 8:14 PM Greg Crawford
> wrote:
>
>> I'd like to take a poll on hub temperatures from those of you who check
>> these things.
>>
>> I just returned from the Dixielanders/Sunshine Statesmen Rally in
>> Crossville, TN. Here are the particulars:
>>
>> 70 degrees ambient temp, sunny day, 67 miles, primarily interstate, at 55
>> to 65 MPH. Driving east into the sun, so wheels were not exposed to
> direct
>> sunlight. Minimal braking last several miles.
>>
>> Checking temperatures on my Eagle aluminum wheels, just above the lug
>> nuts, from a distance of about 6 inches.
>>
>> Driver front: 90 degrees
>> Pass. front: 95 degrees (new Lenzi hub and knuckle assy.)
>>
>> Driver mid: 85 degrees
>> Driver rear: 80 degrees
>>
>> Pass mid: 86 degrees
>> Pass rear:88 degrees
>>
>> How does this compare with everyone else's data?
>> --
>> Greg Crawford
>> KM4ZCR
>> Knoxville, TN
>>
>> "Ruby Sue"
>> 1977 Royale
>> Rear Bath
>> 403 Engine
>> American Eagle Wheels
>> Early Version Alex Sirum Quad bags
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
_______________________________________________
GMCnet mailing list
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[GMCnet] Re: Hub temperature checks with IR thermometer [message #366958 is a reply to message #366957]

Sat, 25 September 2021 20:37

stu@97381.com, Emery

Messages: 232
Registered: June 2020

Karma: 2

Senior Member

Temps look very good to me. Not hot at all.

Emery Stora

> On Sep 25, 2021, at 9:12 PM, James Hupy wrote:
>
> I usually shoot through the holes in the Alcoas onto the hubs or rotors. I
> find the temps higher there than on the aluminum wheels. But your temps
> sound great to me.
> Jim Hupy
> Salem Oregon
>
>> On Sat, Sep 25, 2021, 5:37 PM Ken Henderson wrote:
>>
>> Greg,
>>
>> I don't have any records to compare with your results, but after 23 years
>> of GMCing, I'd rate those temperatures "Great". They sound about like what
>> I'd expect on my heavy 23'.
>>
>> Now, tell us about the rally: How many coaches, etc.? We'd sure have
>> liked to be there with Y'All, but just a little early for us to get out
>> yet: SHE's still "skittish". I hadn't planned to make it because of a
>> family reunion conflict. After that got cancelled at the last minute,
>> I just couldn't do it.
>>
>> Ken H.
>>
>> On Sat, Sep 25, 2021 at 8:14 PM Greg Crawford
>> wrote:
>>
>>> I'd like to take a poll on hub temperatures from those of you who check
>>> these things.
>>>
>>> I just returned from the Dixielanders/Sunshine Statesmen Rally in
>>> Crossville, TN. Here are the particulars:
>>>
>>> 70 degrees ambient temp, sunny day, 67 miles, primarily interstate, at 55
>>> to 65 MPH. Driving east into the sun, so wheels were not exposed to
>> direct
>>> sunlight. Minimal braking last several miles.
>>>
>>> Checking temperatures on my Eagle aluminum wheels, just above the lug
>>> nuts, from a distance of about 6 inches.
>>>
>>> Driver front: 90 degrees
>>> Pass. front: 95 degrees (new Lenzi hub and knuckle assy.)
>>>
>>> Driver mid: 85 degrees
>>> Driver rear: 80 degrees
>>>
>>> Pass mid: 86 degrees
>>> Pass rear:88 degrees
>>>
>>> How does this compare with everyone else's data?
>>> --
>>> Greg Crawford
>>> KM4ZCR
>>> Knoxville, TN
>>>
>>> "Ruby Sue"
>>> 1977 Royale
>>> Rear Bath
>>> 403 Engine
>>> American Eagle Wheels
>>> Early Version Alex Sirum Quad bags
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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Re: Hub temperature checks with IR thermometer [message #366959 is a reply to message #366955]

Sat, 25 September 2021 21:20

Greg C.

Messages: 224
Registered: October 2019
Location: Knoxville, TN

Karma: 0

Senior Member

Thanks, everyone. There were seven coaches at the rally counting mine. There were folks there from Florida, Georgia, and Tennessee. We left a day early because of prior commitments, but today they carpooled to the Apple Festival and car show. Breakfast and dinner every day and fried pies in the campfire at night. I think everyone had and is having a good time. The campground is very nice, and the group had the use of the clubhouse.

Greg Crawford KM4ZCR Knoxville, TN "Ruby Sue" 1977 Royale Rear Bath 403 Engine American Eagle Wheels Early Version Alex Sirum Quad bags

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[GMCnet] Re: Hub temperature checks with IR thermometer [message #366960 is a reply to message #366959]

Sat, 25 September 2021 21:26

Ken Henderson

Messages: 8726
Registered: March 2004
Location: Americus, GA

Karma: 9

Senior Member

Thanks for the update, Greg. Next time!

Ken H.

On Sat, Sep 25, 2021 at 10:20 PM Greg Crawford
wrote:

> Thanks, everyone. There were seven coaches at the rally counting mine.
> There were folks there from Florida, Georgia, and Tennessee. We left a day
> early because of prior commitments, but today they carpooled to the Apple
> Festival and car show. Breakfast and dinner every day and fried pies in the
> campfire at night. I think everyone had and is having a good time. The
> campground is very nice, and the group had the use of the clubhouse.
> --
> Greg Crawford
> KM4ZCR
> Knoxville, TN
>
> "Ruby Sue"
> 1977 Royale
> Rear Bath
> 403 Engine
> American Eagle Wheels
> Early Version Alex Sirum Quad bags
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:

Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach

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Re: Hub temperature checks with IR thermometer [message #366966 is a reply to message #366955]

Sun, 26 September 2021 10:33

Matt Colie

Messages: 8547
Registered: March 2007
Location: S.E. Michigan

Karma: 7

Senior Member

Greg,

You can trust me on this....
Your numbers look great. When things are not right, there will be one (or more) that will be a distinct flyer.
The sunny side to the cold side can be 20~25° easily, but a dragging brake will get you an unexplained 40~50°.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

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Re: Hub temperature checks with IR thermometer [message #366996 is a reply to message #366955]

Wed, 29 September 2021 16:37

Bullitthead

Messages: 1411
Registered: November 2013

Karma: 5

Senior Member

My steel wheels measure 100 degrees (with IR pyrometer)after 20 minutes of runtime after leaving the house (after a no-brake stop) and they haven't been increasing after that, so I just keep fingers crossed and top that antijinx with almost everything to replace the bearings on roadside.

Terry Kelpien ASE Master Technician 73 Glacier 260 Smithfield, Va.

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[GMCnet] Re: Hub temperature checks with IR thermometer [message #366998 is a reply to message #366996]

Wed, 29 September 2021 17:21

jimk

Messages: 6734
Registered: July 2006
Location: Belmont, CA

Karma: 9

Senior Member

If your using the brakes, it will read higher.

On Wed, Sep 29, 2021 at 2:37 PM Terry via Gmclist
wrote:

> My steel wheels measure 100 degrees (with IR pyrometer)after 20 minutes of
> runtime after leaving the house (after a no-brake stop) and they haven't
> been increasing after that, so I just keep fingers crossed and top that
> antijinx with almost everything to replace the bearings on roadside.
> --
> Terry Kelpien
>
> ASE Master Technician
>
> 73 Glacier 260
>
> Smithfield, Va.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>

--
Jim Kanomata ASE
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.gmcrvparts.com
1-800-752-7502
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jimk@appliedairfilters.com
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Re: [GMCnet] Re: Hub temperature checks with IR thermometer [message #367158 is a reply to message #366957]

Mon, 11 October 2021 10:30

Richard RV

Messages: 631
Registered: July 2012
Location: Full-timer for 12 years, ...

Karma: -17

Senior Member

James Hupy wrote on Sat, 25 September 2021 21:12

I usually shoot through the holes in the Alcoas onto the hubs or rotors. I find the temps higher there than on the aluminum wheels. But your temps sound great to me.

That's also how I check the temperature. The closer you can get to the actual bearings, instead of a massive highly conductive heat sink, the better.

Richard

'77 Birchaven TZE...777; '76 Palm Beach under construction; ‘76 Edgemont waiting its turn

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