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[GMCnet] Replace Front Seal on Onan [message #131689]

Thu, 23 June 2011 15:10

Arthur Mansfield

Messages: 290
Registered: April 2010

Karma: 0

Senior Member

I pulled out the Onan and found a good deal of oil had leaked since the last time I had it out. The oil was all over the muffler and the outter door. I checked the oil and it was full ... a little over full. I had to replace the starter bracket and found the seal leaking but I wrongly thought it was ok. How hard is it to replace the seal and where can I get one.

Art & Doris
76 EL
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Re: [GMCnet] Replace Front Seal on Onan [message #131740 is a reply to message #131689]

Thu, 23 June 2011 19:34

2-4 the road

Messages: 145
Registered: June 2009
Location: Fulltimers

Karma: 0

Senior Member

Before you go too far you may want
to check the crank case breather valve.
mine was plugged and my onan was blowing
oil out and quit after I cleaned the
breather.

2-4 the road 77 Kingsley 455

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Re: [GMCnet] Replace Front Seal on Onan [message #131752 is a reply to message #131740]

Thu, 23 June 2011 20:22

Arthur Mansfield

Messages: 290
Registered: April 2010

Karma: 0

Senior Member

Thanks JoAnne I wil look at the breath cap
On Jun 23, 2011, at 7:34 PM, JoAnne Bissell wrote:

>
>
> Before you go too far you may want
> to check the crank case breather valve.
> mine was plugged and my onan was blowing
> oil out and quit after I cleaned the
> breather.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Re: [GMCnet] Replace Front Seal on Onan [message #131757 is a reply to message #131740]

Thu, 23 June 2011 21:01

jimk

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

Karma: 9

Senior Member

Also check the oil sender and oil filter mounting assy.
You'll find that mostof the leas are not from the shaft.

On Thu, Jun 23, 2011 at 5:34 PM, JoAnne Bissell
<joanne.bissell@gmail.com> wrote:
>
>
> Before you go too far you may want
> to check the crank case breather valve.
> mine was plugged and my onan was blowing
> oil out and quit after I cleaned the
> breather.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>

--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.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] Replace Front Seal on Onan [message #131764 is a reply to message #131689]

Thu, 23 June 2011 21:26

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma: 6

Senior Member

Art,

I'm a bit confused as to which seal you're talking about. By Front Seal do
you mean the one that seals the fan shaft?

Please clarify.

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of 1104agm
Sent: Friday, June 24, 2011 6:11 AM
To: gmclist@temp.gmcnet.org
Subject: [GMCnet] Replace Front Seal on Onan

I pulled out the Onan and found a good deal of oil had leaked since the last
time I had it out. The oil was all over the muffler and the outter door. I
checked the oil and it was full ... a little over full. I had to replace
the starter bracket and found the seal leaking but I wrongly thought it was
ok. How hard is it to replace the seal and where can I get one.

Art & Doris
76 EL

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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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Re: [GMCnet] Replace Front Seal on Onan [message #131830 is a reply to message #131757]

Fri, 24 June 2011 10:47

Arthur Mansfield

Messages: 290
Registered: April 2010

Karma: 0

Senior Member

Thanks Jim

I checked the filter and it had come loose. Is that a problem with the Onan. I had used a wrench to tighten the filter when I installed it last year at end of season. I guess the loose filter could have caused it to quit ??? low oil pressure. Right now it is running and I have it connected to a separate fuel supple with clear fuel lines to see if it quits is it fuel problem. Both AC are running. After a half an hour I will turn on the hot water heater to fully load the Onan. I have two 13.5 AC running full out.

Art
On Jun 23, 2011, at 9:01 PM, Jim Kanomata wrote:

> Also check the oil sender and oil filter mounting assy.
> You'll find that mostof the leas are not from the shaft.
>
> On Thu, Jun 23, 2011 at 5:34 PM, JoAnne Bissell
> <joanne.bissell@gmail.com> wrote:
>>
>>
>> Before you go too far you may want
>> to check the crank case breather valve.
>> mine was plugged and my onan was blowing
>> oil out and quit after I cleaned the
>> breather.
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
>
> --
> Jim Kanomata
> Applied/GMC, Fremont,CA
> jimk@appliedairfilters.com
> http://www.appliedgmc.com
> 1-800-752-7502
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Re: [GMCnet] Replace Front Seal on Onan [message #131831 is a reply to message #131764]

Fri, 24 June 2011 10:48

Arthur Mansfield

Messages: 290
Registered: April 2010

Karma: 0

Senior Member

Yes the one that seals the fan
On Jun 23, 2011, at 9:26 PM, Rob Mueller wrote:

> Art,
>
> I'm a bit confused as to which seal you're talking about. By Front Seal do
> you mean the one that seals the fan shaft?
>
> Please clarify.
>
> Regards,
> Rob M.
> USAussie - Downunder
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
> -----Original Message-----
> From: gmclist-bounces@temp.gmcnet.org
> [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of 1104agm
> Sent: Friday, June 24, 2011 6:11 AM
> To: gmclist@temp.gmcnet.org
> Subject: [GMCnet] Replace Front Seal on Onan
>
> I pulled out the Onan and found a good deal of oil had leaked since the last
> time I had it out. The oil was all over the muffler and the outter door. I
> checked the oil and it was full ... a little over full. I had to replace
> the starter bracket and found the seal leaking but I wrongly thought it was
> ok. How hard is it to replace the seal and where can I get one.
>
> Art & Doris
> 76 EL
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Re: [GMCnet] Replace Front Seal on Onan [message #131911 is a reply to message #131830]

Sat, 25 June 2011 00:30

Ken Burton

Messages: 10030
Registered: January 2004
Location: Hebron, Indiana

Karma: 10

Senior Member

Arthur Mansfield wrote on Fri, 24 June 2011 10:47

I have not seen that on an Onan but my experience is limited. On aircraft oil filters they weld little tabs on the end and safety wire them to keep them from turning. Take a look at the little tabs sticking out from the nut on the end:

http://tinyurl.com/6ceftky

http://www.google.com/imgres?imgurl=http://www.2aps.com/images/Champion_Filter1.gif&imgrefurl=http://www.2aps.com/champion%2520filters.htm&h=1 47&w=147&sz=11&tbnid=TTChVtmrIvwWMM:&tbnh=94&tbnw=94&prev=/search%3Fq%3Daircraft%2Boil%2Bfilter%2Bpicture%26tbm%3Disch%26tbo%3 Du&zoom=1&q=aircraft+oil+filter+picture&hl=en&usg=__KS_rRgDOBumaT0aIdY8lK_mAP_g=&sa=X&ei=CXEFTqj9A43UgAfKgb3gDQ&sqi=2& ved=0CDYQ9QEwAw&dur=1364

Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana

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Re: [GMCnet] Replace Front Seal on Onan [message #131918 is a reply to message #131911]

Sat, 25 June 2011 07:17

gordh1

Messages: 332
Registered: February 2011

Karma: 0

Senior Member

For canister type filters, in motorcycle racing it's common to tighten a hose clamp around the filter and lock-wire it to an immovable. Simple and effective. Wink

Gord

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Re: [GMCnet] Replace Front Seal on Onan [message #131945 is a reply to message #131831]

Fri, 24 June 2011 20:06

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma: 6

Senior Member

Art,

I got one from Jack's Small Engines: http://www.jackssmallengines.com/

Dennis Sexton pointed me in the direction of: http://www.m-and-d.com/

Having said that when I pulled the flywheel off Double Trouble's Onan I
found that the seal was fine, it appears that the oil is coming from
somewhere else. I didn't have time to troubleshoot it before I returned to
Australia.

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of 1104agm
Sent: Saturday, June 25, 2011 1:48 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Replace Front Seal on Onan

Yes the one that seals the fan

Art & Doris

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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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