Brownish backfire

Johnluss · Postby **Johnluss** » 21 Sep 2009 02:08

My Fergie had problems today. This morning going for a ride my friend noticed that on a few short period there was some brownish smoke coming out of the exhaust pipe. Later going downhill in a winding road, mostly on compression, there was a big backfire leaving behind a cloud of brownish smoke again. I am surprised the muffler is still in one piece. The rest of the day everything went smooth.
Pls all doctors tell me what is the problem with her.
Thanks

jclay (RIP 2018) · Postby **jclay (RIP 2018)** » 21 Sep 2009 02:21

Is there an air pump installed and have you fixed any vacuum leaks lately?

The air pump can cause backfires when you let off the gas.

jclay

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Johnluss · Postby **Johnluss** » 22 Sep 2009 00:11

I have removed the air pump a few years ago and no ajustment made or air leak fixed lately.
Thanks

jclay (RIP 2018) · Postby **jclay (RIP 2018)** » 22 Sep 2009 00:28

OK, I would look for an air leak around the exhaust header and do a compression check for a burnt valve.

jclay

[url="http://web.mac.com/jclaythompson/iWeb/Site/Welcome.html"]My Triumph Site[/url], [url="http://web.mac.com/jclaythompson/iWeb/Technical/Intro.html"]Technical Stuff[/url], [url="http://homepage.mac.com/WebObjects/FileSharing.woa/53/wo/HJMTK8gsojtwKleP.1/0.2.1.2.26.31.97.0.35.0.1.1.1?user=jclaythompson&fpath=Triumph_Articles&templatefn=FileSharing4.html"]Download Page[/url]

Hasbeen · Postby **Hasbeen** » 22 Sep 2009 03:10

Yep, air leaks into the exhaust will do it, so have a good look for
one.

So to will unburnt fuel in the exhaust, so do that compression test.
However, a riding, or near riding exhaust valve, will do the same
thing as a burnt valve, so check your valve clearances.

A mate of mine who had a 50s Morgan +4, [Vanguard/Fergie/TR 3
engine] used to refer to it as his Fergie in drag. Do you think of
your Fergie as your TR3, in drag? I'm sure it would endear you to
the side curtain brigade, if they were to hear you doing so.

Hasbeen

Johnluss · Postby **Johnluss** » 23 Sep 2009 23:47

Thanks for the tips and I will check that this weekend.
But what worries me most is for a french speaking like me is to understand the last part of your answer. Could you repeat that in plain english?
<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Hasbeen

Yep, air leaks into the exhaust will do it, so have a good look for
one.

So to will unburnt fuel in the exhaust, so do that compression test.
However, a riding, or near riding exhaust valve, will do the same
thing as a burnt valve, so check your valve clearances.

A mate of mine who had a 50s Morgan +4, [Vanguard/Fergie/TR 3
engine] used to refer to it as his Fergie in drag. Do you think of
your Fergie as your TR3, in drag? I'm sure it would endear you to
the side curtain brigade, if they were to hear you doing so.

Hasbeen
<hr height="1" noshade id="quote"></blockquote id="quote">

FI Spyder · Postby **FI Spyder** » 24 Sep 2009 02:27

Don't worry John, he's Australian. We can't understand him on the west coast either.[:D]

TR7 Spider - 1978 Spifire - 1976 Spitfire - 1988 Tercel 4X4 - Kali on Integra - 1991 Integra

PeterTR7V8 · Postby **PeterTR7V8** » 24 Sep 2009 02:43

As a Kiwi I understood it but I disagreed with it. [:D]

Never say die. At least not while you're still breathing.

Hasbeen · Postby **Hasbeen** » 25 Sep 2009 08:48

Sorry, it was just a joke, about having a Standard/Triumph engine,
basically the same as the TR2 to TR4, & the same one used in the
Morgan +4, in your tractor.

Hasbeen

PS, Any success yet?

H

Beans · Postby **Beans** » 25 Sep 2009 09:46

Still thinking of putting the later Fergie version of that engine (yes the petroleum/diesel one) in a TR2 or TR3.
Of course tegether with the mushroom shaped filter for the cranck case ventilation through the bonnet [:D]

Or a Fergie on Webers ...

<center>

1981 TR7 FHC Sprint (better known as 't Kreng)
1980 TR7 DHC (my first car currently being restored)
In parts a 1980 TR7 PI DHC, 1981 TR7 DHC, 1981 TR7 FHC
http://tr7beans.blogspot.com/</center>

PeterTR7V8 · Postby **PeterTR7V8** » 25 Sep 2009 10:03

I may be wrong but I think "Fergie" is John's name for his TR7 & not the iconic Massey-Fergusson tractor that had the TRiumph engines.

Never say die. At least not while you're still breathing.

Beans · Postby **Beans** » 25 Sep 2009 10:33

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by PeterTR7V8

I may be wrong but I think "Fergie" is John's name for his TR7<hr height="1" noshade id="quote"></blockquote id="quote">
If you see the TR7 as a descendant from the old TR's it is also related to the iconic Fergie.
So quite an appropriate name I'd say [:D]

<center>

1981 TR7 FHC Sprint (better known as 't Kreng)
1980 TR7 DHC (my first car currently being restored)
In parts a 1980 TR7 PI DHC, 1981 TR7 DHC, 1981 TR7 FHC
http://tr7beans.blogspot.com/</center>

Cobber · Postby **Cobber** » 25 Sep 2009 13:01

When I saw the title of this thread: "Brownish Backfire"
My immediate thought was to post a suggestion along the lines of, recommending a change in diet or seeing a doctor! [:D] 

80'Triumph TR7, , 73'Land Rover (Ford 351. V8),
'89 Ford Fairlane
85'Alfa 90, 69'Ford F250.
76' Ford F100

Johnluss · Postby **Johnluss** » 26 Sep 2009 02:32

Fergie is the name I gave to my TR7 based on the royal Fergie, we all know I think, with the red head and the special charactar.
But thanks for all your suggestions. Planning to check that this weekend.

Anonymous

Brownish backfire

Brownish backfire

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