| 78 Refer access [message #366417] |
Tue, 31 August 2021 19:19  |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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How do you get behind a 78 refer to clean, inspect, service, safety check? I have a 77 but don’t know why they put louvers for final model year.
John Lebetski
Woodstock, IL
77 Eleganza II
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| [GMCnet] Re: 78 Refer access [message #366418 is a reply to message #366417] |
Tue, 31 August 2021 19:43  |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Probably pull it out the wall.
Sully
Bellevue wa
On Tue, Aug 31, 2021 at 5:19 PM John R. Lebetski
wrote:
> How do you get behind a 78 refer to clean, inspect, service, safety
> check? I have a 77 but don’t know why they put louvers for final model
> year.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| [GMCnet] Re: 78 Refer access [message #366419 is a reply to message #366418] |
Tue, 31 August 2021 20:41 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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John,
I got a door panel similar size and cut the hole in the lower section.
I left the top alone.
When I replaced the refer with the LPG unit I added the top vent on the
roof and left the upper louver as is.
On Tue, Aug 31, 2021 at 5:44 PM Todd Sullivan wrote:
> Probably pull it out the wall.
>
> Sully
> Bellevue wa
>
> On Tue, Aug 31, 2021 at 5:19 PM John R. Lebetski
> wrote:
>
>> How do you get behind a 78 refer to clean, inspect, service, safety
>> check? I have a 77 but don’t know why they put louvers for final model
>> year.
>> --
>> John Lebetski
>> Woodstock, IL
>> 77 Eleganza II
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>>
> _______________________________________________
> 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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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Re: 78 Refer access [message #366424 is a reply to message #366419] |
Wed, 01 September 2021 09:16 |
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Richard RV
Messages: 631
Registered: July 2012
Location: Full-timer for 12 years, ...
Karma: -17
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Senior Member |
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If a rooftop refrigerator vent is installed on a 1978 the upper louver stamped into the aluminum sidewall should be blocked off from the inside. Otherwise the sidewall vent will act as a short circuit to the airflow. Letting air out the side vent means less air will be moving over the refrigerator fins. If there's a baffle a maximum of 1" off of the back of the fins, as both Dometic and Norcold specify, blocking the sidewall vent is less important, but I'd still do it.
From what I've seen that back baffle is rare in GMCs - most just have the outside wall without a back baffle. An analogy would be not having a shroud around the radiator fan. Same amount of air moving, just not where you want it.
Richard
'77 Birchaven TZE...777;
'76 Palm Beach under construction;
‘76 Edgemont waiting its turn
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