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Home » Public Forums » GMCnet » Out with the old- in with the new. (Replacing the original pump.)
Out with the old- in with the new. [message #327649] Mon, 01 January 2018 16:54 Go to next message
Ralph is currently offline  Ralph   United States
Messages: 5
Registered: July 2015
Location: WPB FL
Karma: 0
Junior Member
Finally picked up a viair 444 c to replace the original Dana pump. The Dana still works, just not very well. It's getting tired.

You say "OCD" like its a bad thing! 1974 Glacier Flexsteel seats 4k onan Alum wheels WPB FL
Re: [GMCnet] Out with the old- in with the new. [message #327653 is a reply to message #327649] Mon, 01 January 2018 19:47 Go to previous messageGo to next message
Kingsley Coach is currently offline  Kingsley Coach   United States
Messages: 2691
Registered: March 2009
Location: Nova Scotia Canada
Karma: -34
Senior Member
There are replacement pistons and flapper valves to rebuild the
original...had you asked on line here.
Remember, we're all in this together !

Mike in NM


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On Mon, Jan 1, 2018 at 6:54 PM, Ralph Dugger via Gmclist <
gmclist@list.gmcnet.org> wrote:

> Finally picked up a viair 444 c to replace the original Dana pump. The
> Dana still works, just not very well. It's getting tired.
> --
> You say "OCD" like its a bad thing!
> 1974 Glacier
> Flexsteel seats
> 4k onan
> Alum wheels
> WPB FL
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>



--
Michael Beaton
1977 Kingsley 26-11
1977 Eleganza II 26-3
Antigonish, NS

Life is too short to hold a grudge; slash some tires and call it even !
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Re: [GMCnet] Out with the old- in with the new. [message #327654 is a reply to message #327653] Mon, 01 January 2018 20:41 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
Senior Member
Kingsley Coach wrote on Mon, 01 January 2018 19:47
There are replacement pistons and flapper valves to rebuild the
original...had you asked on line here.
Remember, we're all in this together !

Mike in NM


**SNIP **



I rebuilt mine in about an hour about 14 years ago. It is still running fine.
This is one of those items that is used do little that I feel a rebuild is a better choice than replacement. On an all day trip in travel it runs once or twice for 30 seconds or so each time. I do carry a Harbor freight 12 volt tire inflation compressor that could be quickly attached if the OEM DANA should quit.


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: [GMCnet] Out with the old- in with the new. [message #327656 is a reply to message #327654] Mon, 01 January 2018 22:43 Go to previous messageGo to next message
Richard Denney is currently offline  Richard Denney   United States
Messages: 920
Registered: April 2010
Karma: 9
Senior Member
Ken,

When I first got my coach, I rebuilt my Dana pump using the same kit you
used, and it still did a poor job of filling that big Power Level tank. The
roads here are neither flat nor straight, and my bags draw air on long
sweeping turns. My pump runs a lot more than yours, and the Viair pump
works a lot more quickly.

Doesn’t the EL-I in your ‘76 use a small tank?

Rick “not remembering which system used that small tank” Denney

On Mon, Jan 1, 2018 at 9:42 PM Ken Burton wrote:

> Kingsley Coach wrote on Mon, 01 January 2018 19:47
>> There are replacement pistons and flapper valves to rebuild the
>> original...had you asked on line here.
>> Remember, we're all in this together !
>>
>> Mike in NM
>>
>>
>> **SNIP **
>
>
> I rebuilt mine in about an hour about 14 years ago. It is still running
> fine.
> This is one of those items that is used do little that I feel a rebuild is
> a better choice than replacement. On an all day trip in travel it runs
> once or twice for 30 seconds or so each time. I do carry a Harbor freight
> 12 volt tire inflation compressor that could be quickly attached if the OEM
> DANA should quit.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Rick Denney
73 x-Glacier 230 "Jaws"
Off-list email to rick at rickdenney dot com
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Re: [GMCnet] Out with the old- in with the new. [message #327660 is a reply to message #327656] Tue, 02 January 2018 03:29 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
Senior Member
Richard Denney wrote on Mon, 01 January 2018 22:43
Ken,

When I first got my coach, I rebuilt my Dana pump using the same kit you
used, and it still did a poor job of filling that big Power Level tank. The
roads here are neither flat nor straight, and my bags draw air on long
sweeping turns. My pump runs a lot more than yours, and the Viair pump
works a lot more quickly.

Doesn't the EL-I in your '76 use a small tank?

Rick "not remembering which system used that small tank" Denney

On Mon, Jan 1, 2018 at 9:42 PM Ken Burton wrote:

> Kingsley Coach wrote on Mon, 01 January 2018 19:47
>> There are replacement pistons and flapper valves to rebuild the
>> original...had you asked on line here.
>> Remember, we're all in this together !
>>
>> Mike in NM
>>
>>
>> **SNIP **
>
>
> I rebuilt mine in about an hour about 14 years ago. It is still running
> fine.
> This is one of those items that is used do little that I feel a rebuild is
> a better choice than replacement. On an all day trip in travel it runs
> once or twice for 30 seconds or so each time. I do carry a Harbor freight
> 12 volt tire inflation compressor that could be quickly attached if the OEM
> DANA should quit.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>

--
Rick Denney
73 x-Glacier 230 "Jaws"
Off-list email to rick at rickdenney dot com


You are correct the tank is something just over a quart. About the only time that I hear the compressor kick on is if I switch from a relatively flat interstate to a 2 lane country road. Also if I pickup a good crosswind it will auto level and sometimes kick on for that. Due to the delay in the level sensing switches it seldom corrects much for normal road variations. The corrections only occur if the out of normal conditions stay constant for a period of time. I do not know what that time value is. To be honest I seldom think about it since it is all automatic like GM designed it.


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: [GMCnet] Out with the old- in with the new. [message #327664 is a reply to message #327660] Tue, 02 January 2018 07:42 Go to previous messageGo to next message
Richard Denney is currently offline  Richard Denney   United States
Messages: 920
Registered: April 2010
Karma: 9
Senior Member
The tank on the OP's '74 with Power Level is more like something over a
gallon. My rebuilt Dana would take 7 minutes (from distant memory) to fill
it over the range of the pressure switch, while the Viair did it in a small
fraction of that.

Rick "recalling some disappointment in the outcome of that rebuild" Denney

On Tue, Jan 2, 2018 at 4:29 AM, Ken Burton wrote:

>
> You are correct the tank is something just over a quart. About the only
> time that I hear the compressor kick on is if I switch from a relatively
> flat
> interstate to a 2 lane country road. Also if I pickup a good crosswind it
> will auto level and sometimes kick on for that. Due to the delay in the
> level sensing switches it seldom corrects much for normal road
> variations. The corrections only occur if the out of normal conditions
> stay constant
> for a period of time. I do not know what that time value is. To be
> honest I seldom think about it since it is all automatic like GM designed
> it.
>


--
'73 X-Glacier 230 "Jaws"
Northern Virginia
Offlist email: rick at rickdenney dot com
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Re: [GMCnet] Out with the old- in with the new. [message #327682 is a reply to message #327664] Tue, 02 January 2018 15:16 Go to previous message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
G'day,

I installed a Viair 480C

http://www.viaircorp.com/c-models/480c/

It is the largest capacity unit they build.

It is also the most expensive @ $212:

https://www.amazon.com/Viair-48043-Chrome-480C-Compressor/dp/B000FQ95J6

However, I considered the additional $50 acceptable:

https://www.amazon.com/gp/offer-listing/B00CTCW0AK/ref=dp_olp_new_mbc?ie=UTF8&condition=new

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808


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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
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