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Exhaust Woes
Posted by: dolomitefan ()
Date: May 11, 2018 01:41AM

Still attempting to sort out the exhaust on my Greenbrier, starting to wish I hadn't started now.

I was unable to get a correct FC type crossover pipe so I asked a local supplier to make me one to pattern. Unfortunately despite leaving him the old system he managed to produce one with too large a pipe diameter, an unnecessary join and an incorrect shape to join onto the manifolds. Needless to say I refused to pay for the part.

Going to my first show in it at the end of the month so hoping to get sorted by then! Might have to convert a car pipe, not sure if it can be heated sufficiently though with a torch to bend the angle. Was almost wondering about trimming it and then introducing a flexible section to join onto the muffler.

Worst of all we've had lovely weather here so really missing driving her.

---------------------------------------------------------------
Mark Gibson, Staffordshire, England

1961 Corvair Greenbrier
1980 Triumph Dolomite Sprint
2015 BMW 1 Series

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Re: Exhaust Woes
Posted by: bertle ()
Date: May 11, 2018 02:17AM

I don't know where in Staffordshire you are but a trip to US Automotive in Bedford might be worth a day out. They have always been very good at reproducing bespoke bent exhaust systems to a pattern, better still take the vehicle to them.

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Re: Exhaust Woes
Posted by: ac1948 ()
Date: May 11, 2018 03:52AM

I heated and bent a car pipe to fit. worked fine.

Jerry Murray
Charleston, SC

66 Monza Conv.,110,PG

63 Rampside, PG,110



64 Rampside, 110, 4 speed

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Re: Exhaust Woes
Posted by: dolomitefan ()
Date: May 11, 2018 04:32AM

ac1948 Wrote:
-------------------------------------------------------
> I heated and bent a car pipe to fit. worked fine.

I do have a butane torch but nothing hotter than that. I think bending mild steel shouldn't be too difficult provided I can get it hot enough. I've seen some people fill them with sand as it absorbs more heat, was this something you did? Certainly looking at pictures there's not a huge difference between the angle on the car one vs the van.

---------------------------------------------------------------
Mark Gibson, Staffordshire, England

1961 Corvair Greenbrier
1980 Triumph Dolomite Sprint
2015 BMW 1 Series

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Re: Exhaust Woes
Posted by: bwells ()
Date: May 11, 2018 05:12AM

Mark,

A butane torch will not provide enough heat over a large enough area to bend the pipe properly. At least that has been my experience. An oxy/acetylene rig with a "rosebud" tip will allow the entire elbow area to be gotten red and bending to the required FC angle is easy.

Bill Wells
North Texas Corvair Assoc.
www.northtexascorvair.org
61 Ramp
65 Corsa

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Re: Exhaust Woes
Posted by: bertle ()
Date: May 11, 2018 05:26AM

dolomitefan Wrote:
-------------------------------------------------------
> ac1948 Wrote:
> --------------------------------------------------
> -----
> > I heated and bent a car pipe to fit. worked
> fine.
>
> I do have a butane torch but nothing hotter than
> that. I think bending mild steel shouldn't be too
> difficult provided I can get it hot enough. I've
> seen some people fill them with sand as it absorbs
> more heat, was this something you did? Certainly
> looking at pictures there's not a huge difference
> between the angle on the car one vs the van.

I would think the sand is to stop the tube kinking, you will need more than a butane torch to heat it though.

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Re: Exhaust Woes
Posted by: Lane66m ()
Date: May 11, 2018 08:42AM

I watched 3 friends try to bend a Clark's crossover pipe back into proper config. 2 propane torches and an acetylene torch to get hot enough and keep the heat the while bending was being done. It the Clark's pipe is thicker material than stock. It took awhile and still wasn't perfect to allow rear grille to be installed.

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1968 Camaro SS Coupe 350 CI 295+ HP PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2015 GMC Sierra SLT Crew Cab
1947 Farmall A tractor 15 hp


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Re: Exhaust Woes
Posted by: dolomitefan ()
Date: May 11, 2018 09:07AM

I have the Clarks muffler, seems pretty thick steel, I was surprised.

The inability to bend the car one is got me thinking about the idea of using a flexible section.

I see Mike's Corvair parts lists a crossover for an FC but I see no feedback on whether these are any good, let alone if they have them in stock. Of course I can call them.

Clarks still hoping for a run of crossovers but currently no ETA.

---------------------------------------------------------------
Mark Gibson, Staffordshire, England

1961 Corvair Greenbrier
1980 Triumph Dolomite Sprint
2015 BMW 1 Series

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Re: Exhaust Woes
Posted by: corventure Dave ()
Date: May 11, 2018 09:30AM

You may also check California Corvair's. I believe they may have them in stock and I have installed a few. Good quality.
A good local muffler shop should be able to cut the Car tube, bend it to position and weld in a section opened from cutting and bending. A good gas welder can do this also.
I have gas welded a lot of exhaust pipes. New are easier because there is no corrosion to deal with.

Corventure Dave

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Re: Exhaust Woes
Posted by: texasuk ()
Date: May 13, 2018 04:17PM

God knows how they managed to screw that up. Must be one of the simplest things to make ever.

Why not just buy the Clarks one. Can be here in 3 days and will fit.

Sometimes it's a false economy to do it yourself, although really an exhaust should be easy.

1964 Monza Convertible - now sold :-(
1962 Greenbrier - Never to be sold :-)

Living in the UK

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Re: Exhaust Woes
Posted by: American Mel ()
Date: May 13, 2018 10:34PM

texasuk Wrote:
-------------------------------------------------------
> God knows how they managed to screw that up. Must
> be one of the simplest things to make ever.
>
> Why not just buy the Clarks one. Can be here in 3
> days and will fit.

>
> Sometimes it's a false economy to do it yourself,
> although really an exhaust should be easy.


He lives in ENGLAND.

More than 3 days to arrive.
Exorbitant shipping.
Import duty.

.
-----------------------------------------------
WA. state, 1 mile south of the Canadian border,
I am not at the end of the world, but you can see it from here.
'66 Monza Coupe - 4spd, 140 Daily driver beater
'67 Monza Vert. - PG, 140 Daily driver beater

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Re: Exhaust Woes
Posted by: dolomitefan ()
Date: May 14, 2018 02:44AM

I've now decided to buy the Clarks car one and modify it. The van ones are still on order with an unknown eta. My plan is to either heat and bend the pipe (need to borrow my neighbours torch again) or cut and fit a small length of good quality flexible pipe to achieve the correct angle.

If the only difference is the angle of the connection to the muffler then it shouldn't be too difficult to achieve via heat and bend, must only be a few degrees different. I do wish I'd gone down this path in the first place!

---------------------------------------------------------------
Mark Gibson, Staffordshire, England

1961 Corvair Greenbrier
1980 Triumph Dolomite Sprint
2015 BMW 1 Series

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Re: Exhaust Woes
Posted by: idiyaught ()
Date: May 14, 2018 05:05AM

If using flexible pipe you may need to make a muffler hanger for the inlet side.

John Oostdyk
Thornhill, Ont
63 Rampy
65 Greenbrier
63 Coup
64 Convertible

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Re: Exhaust Woes
Posted by: texasuk ()
Date: May 14, 2018 04:11PM

American Mel Wrote:
-------------------------------------------------------
> texasuk Wrote:
> --------------------------------------------------
> -----
> > God knows how they managed to screw that up.
> Must
> > be one of the simplest things to make ever.
> >
> > Why not just buy the Clarks one. Can be here in
> 3
> > days and will fit.
> >
> > Sometimes it's a false economy to do it
> yourself,
> > although really an exhaust should be easy.
>
>
> He lives in ENGLAND.
>
> More than 3 days to arrive.
> Exorbitant shipping.
> Import duty.


I live in ENGLAND.

The cost of all that will still outweigh the cost of pissing about. His time costs as well, take that into consideration and the savings are minimal.

I know, because I've done it for the last 45 years with lots of cars, vans and other crap.

edit - just to add that Clarks will ship FedEx special and get anything here in 3 days. I know that because I've done that as well for years.

1964 Monza Convertible - now sold :-(
1962 Greenbrier - Never to be sold :-)

Living in the UK



Edited 1 time(s). Last edit at 05/14/2018 04:13PM by texasuk.

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Re: Exhaust Woes
Posted by: MattNall ()
Date: May 14, 2018 05:07PM

Are there no Metal Fab / Welding shops in England anymore? the Smithy ?

Admittedly I live near shipyards...but never lived in a town that didn't have one.

5 minutes to bend ..... off the FC...





MODERATOR
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..............................110-PG.................................................Webered-Turbo

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Re: Exhaust Woes
Posted by: texasuk ()
Date: May 15, 2018 06:01AM

Not anymore, the days of lots of local garages and workshops that could do virtually anything for you if you knew what to ask for are pretty much gone, apart from the one or two that survive as anomaly's. And they tend to be good but expensive, over-booked and invariably are at the other end of the country to wherever you are. Health and Safety and modern regulations have helped to erode them as well.

I'm lucky in that I used to be on the tools and am a time served fully skilled sheet metal worker and coded welder, but as I now work in an office dong business consultancy, even I find it difficult to to get the time, tools and work space to do things like dolomitefan is doing. It would be cheaper for me to buy an exhaust from Clarks as well, rather than to take the time and effort to make one.

1964 Monza Convertible - now sold :-(
1962 Greenbrier - Never to be sold :-)

Living in the UK

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Re: Exhaust Woes
Posted by: dolomitefan ()
Date: May 15, 2018 08:17AM

Well last night I ordered a car crossover pipe. Once I have got it then I can have a look at modifying it. Fortunately I do have a neighbour who has got some oxy acetylene kit or there's a few garages nearby who probably have a torch too. I sincerely doubt I can get it hot enough with my butane/propane torch.

Hopefully I should receive in the next week or so and have it all ready in time for my first show in a few weeks time.

---------------------------------------------------------------
Mark Gibson, Staffordshire, England

1961 Corvair Greenbrier
1980 Triumph Dolomite Sprint
2015 BMW 1 Series

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Re: Exhaust Woes
Posted by: dolomitefan ()
Date: May 21, 2018 04:13AM

Car crossover pipe arrived Friday. Had a look at bending it but decided to fit and use a small length of flexible stainless tube between the pipe and muffler. I had to sleeve the end of the crossover pipe but then was able to use the flexible section to achieve the required angle to join onto the muffler.

It seems to work and will certainly do for the moment. If and when the FC pipes become available I will buy one.

I used some decent flexible pipe, in stainless, not the cheap junk off of eBay. We used to use it on some race cars and it worked and lasted quite well. It's actually pretty sturdy stuff so it'll be interesting to see how it lasts. Came in a 3ft length so plenty left over to fix again.

---------------------------------------------------------------
Mark Gibson, Staffordshire, England

1961 Corvair Greenbrier
1980 Triumph Dolomite Sprint
2015 BMW 1 Series

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Re: Exhaust Woes
Posted by: bobg1951chevy ()
Date: May 22, 2018 09:44PM

MARK GIBSON, You certainly received the pipe quickly.

Bob G., Hendersonville, NC

1951 Chevy Styleline Deluxe 2 door sedan. Purchased in 2000.

1969 Corvair 500 Coupe. # 2671. Purchased in 2017.

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