23 on course - Harley Davidson sound

P

peer oliver schmidt

New member
Feb 10, 2014
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This morning I left the 23 in the Baltimore harbor, for the trip to
Europe. Let's see how long it takes.

There is a problem with it. It sounds like a dying Harley Davdidson
without an exhaust.
Unfortunately, I was unable to get the sound recorded, will do so if
need be in Europe. But maybe someone has an idea as to what could cause
the symptom.
--
Best regards

Peer Oliver Schmidt
PGP Key ID: 0x83E1C2EA

'76a Eleganza II, VA
'73 Sequoia, Baltimore Harbor waiting for the ship
 
You probably have a blown exhaust Doughnut. Stop by a parts store and get a few. They're cheap.
--
Kerry Pinkerton - North Alabama

Had 5 over the years. Still have the first a 76 that will be rebodied into an art deco car hauler.

http://www.bdub.net/pinkerton/

'03 Fleetwood Discovery 39L
 
Kerry Pinkerton schrieb/wrote
> You probably have a blown exhaust Doughnut.

Is there anything special about that doughnut that I should look for?

--
Best regards

Peer Oliver Schmidt
the internet company
PGP Key ID: 0x83E1C2EA
 
> Is there anything special about that doughnut that I should look for?..

Not really. Should be in stock most places but if not, they should be able to get it from the local warehouse. I had 3-4 in my Eleganza when it left
for Wisconsin with the new owner.

Just ask for an exhaust doughnut for a 73 455 Olds Toronado.

--
Kerry Pinkerton - North Alabama

Had 5 over the years. Still have the first a 76 that will be rebodied into an art deco car hauler.

http://www.bdub.net/pinkerton/

'03 Fleetwood Discovery 39L
 
Oh, be advised that the studs may break when you try to get the nuts off. Penetrating oil helps but if the nuts have been there a while, don't be
surprised if they break. If they do, you may have to drill them out and re-tap the holes in the manifold. I'm not sure if yours has little springs
that supposedly keep the proper tightness. If so, you can get them too, they've probably collapsed from the heat. A lot of people don't use them.
--
Kerry Pinkerton - North Alabama

Had 5 over the years. Still have the first a 76 that will be rebodied into an art deco car hauler.

http://www.bdub.net/pinkerton/

'03 Fleetwood Discovery 39L
 
Kerry Pinkerton schrieb/wrote
> Just ask for an exhaust doughnut for a 73 455 Olds Toronado.

So I better get to Napa today before my plane departs, as the guy at the
car shop in Germany will look at me like I'd be the weatherman talking
about the Toronado... :-)

--
Best regards

Peer Oliver Schmidt
PGP Key ID: 0x83E1C2EA

'76a Eleganza II, VA
'73 Sequoia, VA
 
https://www.napaonline.com/en/p/FPB60241
2 1/8"

> Kerry Pinkerton schrieb/wrote
> > Just ask for an exhaust doughnut for a 73 455 Olds Toronado.
>
> So I better get to Napa today before my plane departs, as the guy at the
> car shop in Germany will look at me like I'd be the weatherman talking
> about the Toronado... :)
>
> --
> Best regards
>
> Peer Oliver Schmidt
> PGP Key ID: 0x83E1C2EA
>
> '76a Eleganza II, VA
> '73 Sequoia, VA
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

--
C. Boyd
76 Crestmont
East Tennessee
 
Peer,

The exhaust pipes are held into the exhaust manifold with a stud and spring:

https://www.napaonline.com/en/p/NDP6001185

Unfortunately this part number will not work with the Toronado, however, they are available as I bought some, however they are in
Houston and I can't go get the part numbers off the packagers for you as I don't get there until Monday afternoon.

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


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces] On Behalf Of Peer Oliver Schmidt
Sent: Saturday, September 2, 2017 11:24 PM
To: gmclist
Subject: Re: [GMCnet] 23 on course - Harley Davidson sound

Charles Boyd schrieb/wrote
> https://www.napaonline.com/en/p/FPB60241
> 2 1/8"
Thanks Chuck. Should I get some bolts as well, in case they break? If
yes, do you have a NAPA link for those as well?

--
Best regards

Peer Oliver Schmidt
the internet company
PGP Key ID: 0x83E1C2EA
 
Good luck finding those exhaust doughnuts locally. Usually it seems they have to order them in.

You could be dealing with the bad daughnuts,

Or an exhaust
Manifold leak.

Or worse, cracked or bad manifold. Get it fixed when you can, some leaks are no biggy, the next one will melt something you dont want it to.

--
Jon Roche
75 palm beach
St. Cloud, MN
http://lqqkatjon.blogspot.com/
 
Rob,

Happy Birthday. I presume the word from John S. is good so that it hasn't
already spoiled your birthday? Hope he's all OK as well as Y'All's Stuff.

Ken H. http://www.gmcwipersetc.com

> Peer,
>
> The exhaust pipes are held into the exhaust manifold with a stud and
> spring:
>
> https://www.napaonline.com/en/p/NDP6001185
>
> Unfortunately this part number will not work with the Toronado, however,
> they are available as I bought some, however they are in
> Houston and I can't go get the part numbers off the packagers for you as I
> don't get there until Monday afternoon.
>
> 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
>
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces] On Behalf Of Peer
> Oliver Schmidt
> Sent: Saturday, September 2, 2017 11:24 PM
> To: gmclist
> Subject: Re: [GMCnet] 23 on course - Harley Davidson sound
>
> Charles Boyd schrieb/wrote
> > https://www.napaonline.com/en/p/FPB60241
> > 2 1/8"
> Thanks Chuck. Should I get some bolts as well, in case they break? If
> yes, do you have a NAPA link for those as well?
>
> --
> Best regards
>
> Peer Oliver Schmidt
> the internet company
> PGP Key ID: 0x83E1C2EA
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
What engine do you need the gasket set for?

JR Wright

>
> Charles Boyd schrieb/wrote
>> https://www.napaonline.com/en/p/FPB60241
>> 2 1/8"
>
> I wasn't able to acquire the gasket in the US, so I am looking to get
> one here in Europe.
>
> Does anything on this page look like it might fit the bill?
>
> https://www.moparshop.de/search?sSearch=exhaust+gasket
>
> --
> Best regards
>
> Peer Oliver Schmidt
> PGP Key ID: 0x83E1C2EA
>
> '76a Eleganza II, VA
> '73 Sequoia, on board Don Carlos in the middle of the Atlantic
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
John Wright schrieb/wrote
> What engine do you need the gasket set for?

455

--
Best regards

Peer Oliver Schmidt
the internet company
PGP Key ID: 0x83E1C2EA
 
Peer,

I'm confused!

I thought you were looking for the round gasket that goes between the exhaust manifold and the exhaust pipe, they look like a donut:

https://www.napaonline.com/en/p/FPB60241

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
 
Rob Mueller schrieb/wrote
> Peer,
>
> I'm confused!
>
> I thought you were looking for the round gasket that goes between the exhaust manifold and the exhaust pipe, they look like a donut:
>
> https://www.napaonline.com/en/p/FPB60241

I am confused as well. I am looking for a way to fix the loud Harley
sound. It was assumed at the beginning of this threat that it is the
donut. If it is that donut, can you find it on the german page? I am not
sure, hence me posting the link to the list of gaskets.

--
Best regards

Peer Oliver Schmidt
PGP Key ID: 0x83E1C2EA

'76a Eleganza II, VA
'73 Sequoia, on a roro
 
Peer,
If you looking for the what is called the “Donut” that is the gasket between the exhaust manifold and the down pipe. They are also called “Exhaust Pipe Flange Ring” and “Exhaust Flange Gaskets”.

The Cast Iron Manifolds use a part number:

https://www.napaonline.com/en/p/FPB60241

Someone had already posted this and what you need.

The headers use a part number:

https://www.napaonline.com/en/p/FPB60584

The catalog section that you showed does not reference this type of gasket

If you're looking for the gasket set between the manifold and the head, then that is a different number.

JR Wright
GMC Great Laker MHC
GMC Eastern States Charter Member
GMCGL Tech Editor
GMCMI
78 GMC Buskirk 30’ Stretch
1975 GMC Avion (Under Reconstruction)
Michigan

>
> What engine do you need the gasket set for?
>
> JR Wright

>>
>> Charles Boyd schrieb/wrote
>>> https://www.napaonline.com/en/p/FPB60241
>>> 2 1/8"
>>
>> I wasn't able to acquire the gasket in the US, so I am looking to get
>> one here in Europe.
>>
>> Does anything on this page look like it might fit the bill?
>>
>> https://www.moparshop.de/search?sSearch=exhaust+gasket
>>
>> --
>> Best regards
>>
>> Peer Oliver Schmidt
>> PGP Key ID: 0x83E1C2EA
>>
>> '76a Eleganza II, VA
>> '73 Sequoia, on board Don Carlos in the middle of the Atlantic
>>
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Peer,

I just re-checked the German page you posted and there are no pictures of it.

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

-----Original Message-----
From: Gmclist [mailto:gmclist-bounces] On Behalf Of Peer Oliver Schmidt GMC
Sent: Wednesday, September 27, 2017 10:50 PM
To: gmclist
Subject: Re: [GMCnet] 23 on course - Harley Davidson sound

I am confused as well. I am looking for a way to fix the loud Harley
sound. It was assumed at the beginning of this threat that it is the
donut. If it is that donut, can you find it on the german page? I am not
sure, hence me posting the link to the list of gaskets.

--
Best regards

Peer Oliver Schmidt
PGP Key ID: 0x83E1C2EA

'76a Eleganza II, VA
'73 Sequoia, on a roro

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Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Just thinking here, if you have a Harley sound could it not be one of the exhaust manifold gaskets ? I do rarely see a dunut failure on the GMC but a
lot of blown manifold gaskets..
--
1973 23' # 1848 Sky Blue Glacier called Baby Blue and a 1973 26'-3 # 1460 Parrot green Seqouia Known as the Big Green,
And sold my 1973 26'-2 # 581 White Canyon lands under the name Dobbelt trøbbel
in Norway
 
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