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BillJohnson
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Joined: October 18, 2006
Posts: 306
Location: Lake Forest Park, WA
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 Posted: Sat Aug 12, 2017 3:00 pm Post subject: Exhaust manifold recommendations for '79 bus? |
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Muffler is shot and apparently, so is my exhaust manifold. Recommendations for best place to order online?
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1979 Type 2 w/ Weber 40 IDF carbs
2003 Jetta TDI |
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Wildthings
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Joined: March 13, 2005
Posts: 50332
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| Posted: Sat Aug 12, 2017 4:53 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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| '79 Federal and '79 California engines have different exhaust systems so you need to know which system you need parts for. The heater boxes do double duty as exhaust manifolds on these engines, are heater boxes what you need? |
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williamM
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Joined: August 07, 2008
Posts: 4333
Location: southwest Arizona
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| Posted: Sat Aug 12, 2017 5:13 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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| Wildthings wrote: |
| '79 Federal and '79 California engines have different exhaust systems so you need to know which system you need parts for. The heater boxes do double duty as exhaust manifolds on these engines, are heater boxes what you need? |
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some days I get up and just sit and think. Some days I just sit.
opinion untempered by fact is ignorance.
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aerosurfer
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Joined: March 25, 2012
Posts: 1602
Location: Indianapolis, IN
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| Posted: Sat Aug 12, 2017 5:34 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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You have the 79 Cali system on your bus. do you need or want the Catalytic cinverter repaced and do yoy still have the fuel injection on it? if you need the cali exhaust your options are limited
if the pax side is still usable reuse that one. but from the motor, you need federal 79' only Square port heater boxes. then any muffler setup for a 72-74 system will work for you
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Rebuild your own FI Harness..My Harness
77 Westy 2.0L Rockin and Rolling Resto!
72 Sportsmobile (sold)
79 Tran$porter... Parts car money machine (gone) |
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Alan Brase
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Joined: March 28, 2004
Posts: 4532
Location: Cedar Falls, Iowa
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| Posted: Sat Aug 12, 2017 5:39 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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California 1979 -1983 uses a separate manifold on the left side. It is all mild steel and should be easy enough to repair. If it is cracking, I would worry that some supports are missing. Typically what happens over the years. Of course, finding one at swap meet prices in perfect shape would be good also.
Al
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Al Brase
Projects: 67 sunroof bug, 67 Porsche 912 Targa, 70 Westy
Dec 1955 Single Cab pickup WANT 15" BUS RIMS dated 8/55, thru 12/55
To New owners: 1969 doublecab, 1971 Dormobile
Vanagons:
80 P27 Westy JUL 1979, 3rd oldest known US
83 1.6TD Vanagon, 87 Wolfie Westy daily driver, swap meet home |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50332
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| Posted: Sat Aug 12, 2017 6:01 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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Your F pipe has a cover on it with an obvious hole in it, this on its own is no big deal. If there is a hole in the pipe itself then the F pipe needs to be repaired or replaced.
As others mentioned going to a '79 federal heat exchange to replace the F pipe and all the associated piece is a good idea. The '79 heat exchanger is a one year only item so it can take some looking to find one. |
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Alan Brase
Samba Member
Joined: March 28, 2004
Posts: 4532
Location: Cedar Falls, Iowa
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| Posted: Sat Aug 12, 2017 10:27 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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| Wildthings wrote: |
Your F pipe has a cover on it with an obvious hole in it, this on its own is no big deal. If there is a hole in the pipe itself then the F pipe needs to be repaired or replaced.
As others mentioned going to a '79 federal heat exchange to replace the F pipe and all the associated piece is a good idea. The '79 heat exchanger is a one year only item so it can take some looking to find one. |
HUH?
How do you replace the one part? The systems are completely different. On the CA system the exhaust goes thru the right exchanger, joins the exhaust directly from the left manifold, then goes thru the CAT, the ALL goes thru the left heat exchanger and to the muffler. Why?
I have no idea, but I bet it puts out a LOT more heat.
Further, if you have the CA system you have a oxy sensor and the wiring harness is quite a bit different as well. they do not have a resistance unit on the firewall and the double relay is different.
Al
_________________
Al Brase
Projects: 67 sunroof bug, 67 Porsche 912 Targa, 70 Westy
Dec 1955 Single Cab pickup WANT 15" BUS RIMS dated 8/55, thru 12/55
To New owners: 1969 doublecab, 1971 Dormobile
Vanagons:
80 P27 Westy JUL 1979, 3rd oldest known US
83 1.6TD Vanagon, 87 Wolfie Westy daily driver, swap meet home |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50332
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| Posted: Sun Aug 13, 2017 2:43 am Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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| Alan Brase wrote: |
| Wildthings wrote: |
Your F pipe has a cover on it with an obvious hole in it, this on its own is no big deal. If there is a hole in the pipe itself then the F pipe needs to be repaired or replaced.
As others mentioned going to a '79 federal heat exchange to replace the F pipe and all the associated piece is a good idea. The '79 federal heat exchanger is a one year only item so it can take some looking to find one. |
HUH?
How do you replace the one part? The systems are completely different. On the CA system the exhaust goes thru the right exchanger, joins the exhaust directly from the left manifold, then goes thru the CAT, the ALL goes thru the left heat exchanger and to the muffler. Why?
I have no idea, but I bet it puts out a LOT more heat.
Further, if you have the CA system you have a oxy sensor and the wiring harness is quite a bit different as well. they do not have a resistance unit on the firewall and the double relay is different.
Al |
Well for starters he doesn't have FI any more so doesn't need the O2 sensor and would likely be better off without the cat as his signature says:
| Quote: |
| 1979 Type 2 w/ Weber 40 IDF carbs |
so if he can find a left side federal heat exchanger he can eliminate most of the California only exhaust and use a '72-74 muffler. |
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williamM
Samba Member
Joined: August 07, 2008
Posts: 4333
Location: southwest Arizona
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| Posted: Sun Aug 13, 2017 7:12 am Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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| Wildthings wrote: |
| Alan Brase wrote: |
| Wildthings wrote: |
Your F pipe has a cover on it with an obvious hole in it, this on its own is no big deal. If there is a hole in the pipe itself then the F pipe needs to be repaired or replaced.
As others mentioned going to a '79 federal heat exchange to replace the F pipe and all the associated piece is a good idea. The '79 federal heat exchanger is a one year only item so it can take some looking to find one. |
HUH?
How do you replace the one part? The systems are completely different. On the CA system the exhaust goes thru the right exchanger, joins the exhaust directly from the left manifold, then goes thru the CAT, the ALL goes thru the left heat exchanger and to the muffler. Why?
I have no idea, but I bet it puts out a LOT more heat.
Further, if you have the CA system you have a oxy sensor and the wiring harness is quite a bit different as well. they do not have a resistance unit on the firewall and the double relay is different.
Al |
Well for starters he doesn't have FI any more so doesn't need the O2 sensor and would likely be better off without the cat as his signature says:
| Quote: |
| 1979 Type 2 w/ Weber 40 IDF carbs |
so if he can find a left side federal heat exchanger he can eliminate most of the California only exhaust and use a '72-74 muffler. |
[img]
[/img]
_________________
some days I get up and just sit and think. Some days I just sit.
opinion untempered by fact is ignorance.
Don't step in any! |
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SGKent 
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Sun Aug 13, 2017 12:35 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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79 California
79 Federal also has working EGR
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kevineo
Samba Member
Joined: May 09, 2011
Posts: 49
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| Posted: Sun Aug 13, 2017 12:46 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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Any negative ramifications blocking the EGR flow on a federal 2.0 FI?
Had a hole in pipe aft of view "g" small s pipe.....
Any word yet on Emico catalytics? |
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BillJohnson
Samba Member
Joined: October 18, 2006
Posts: 306
Location: Lake Forest Park, WA
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| Posted: Sun Aug 13, 2017 1:21 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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| aerosurfer wrote: |
You have the 79 Cali system on your bus. do you need or want the Catalytic converter replaced and do you still have the fuel injection on it? if you need the cali exhaust your options are limited
if the pax side is still usable reuse that one. but from the motor, you need federal 79' only Square port heater boxes. then any muffler setup for a 72-74 system will work for you |
How do you know I have a 79 Cali system? Don't think I have a catalytic converter. The muffler guy showed me where the exhaust pipe bolts into the (heater box?) on the driver's side. This pipe needs to be replaced. I don't think I need to replace the heater boxes.
Fuel injection was ripped out before I bought the bus. I had Dellortos until they developed the dreaded Dellorto drip. Had them both repaired and rebuilt by Dave Hogarth of Blackline Racing but had to buy Webers in the interim. (Anyone interested in 44 IDF Dellortos?)
So, why am I looking for a 72-74 muffler exhaust pipe for a 79 bus? Just wondering?
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1979 Type 2 w/ Weber 40 IDF carbs
2003 Jetta TDI |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50332
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| Posted: Sun Aug 13, 2017 3:20 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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| BillJohnson wrote: |
| aerosurfer wrote: |
You have the 79 Cali system on your bus. do you need or want the Catalytic converter replaced and do you still have the fuel injection on it? if you need the cali exhaust your options are limited
if the pax side is still usable reuse that one. but from the motor, you need federal 79' only Square port heater boxes. then any muffler setup for a 72-74 system will work for you |
How do you know I have a 79 Cali system? Don't think I have a catalytic converter. The muffler guy showed me where the exhaust pipe bolts into the (heater box?) on the driver's side. This pipe needs to be replaced. I don't think I need to replace the heater boxes.
Fuel injection was ripped out before I bought the bus. I had Dellortos until they developed the dreaded Dellorto drip. Had them both repaired and rebuilt by Dave Hogarth of Blackline Racing but had to buy Webers in the interim. (Anyone interested in 44 IDF Dellortos?)
So, why am I looking for a 72-74 muffler exhaust pipe for a 79 bus? Just wondering? |
Look at the pictures SG Kent posted, you can see the difference in the driver's side side exhaust.
Once you have a driver's side '79 Federal heat exchanger to go with the passenger side heat exchanger you already have you can then run the much simpler, cheaper, and more available 72-74 style exhaust. |
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SGKent
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Sun Aug 13, 2017 3:50 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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| Quote: |
| Once you have a driver's side '79 Federal heat exchanger to go with the passenger side heat exchanger you already have you can then run the much simpler, cheaper, and more available 72-74 style exhaust. |
if you are in a non-smog state and plan on selling it in a non-smog state Mike's suggestion is the easiest solution. A double flange European style muffler can be used with this.
All this said - VW air cooled exhaust systems lasted about like other cars of their day - 40,000 to 60,000 miles. If you are younger that 50 years old you probably are accustomed to car exhausts that last near the life of the car because many of the components are stainless etc. Whatever you buy will not give you a trouble free existence unless you step up to a $1000 - $2000 stainless system without heater boxes.
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SGKent
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Sun Aug 13, 2017 3:52 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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duplicate
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin
Last edited by SGKent on Sun Aug 13, 2017 5:24 pm; edited 1 time in total |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50332
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| Posted: Sun Aug 13, 2017 4:00 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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| SGKent wrote: |
| SGKent wrote: |
| Quote: |
| Once you have a driver's side '79 Federal heat exchanger to go with the passenger side heat exchanger you already have you can then run the much simpler, cheaper, and more available 72-74 style exhaust. |
if you are in a non-smog state and plan on selling it in a non-smog state Mike's suggestion is the easiest solution. A double flange European style muffler can be used with this.
All this said - VW air cooled exhaust systems lasted about like other cars of their day - 40,000 to 60,000 miles. If you are younger than 50 years old you probably are accustomed to car exhausts that last near the life of the car because many of the components are stainless etc. Whatever you buy will not give you a trouble free existence unless you step up to a $1000 - $2000 stainless system without heater boxes. |
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I have a factory stainless 72-74 exhaust on my 1800. Cost me all of $100 on eBay. Couldn't believe no one else bid against me. |
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aerosurfer
Samba Member
Joined: March 25, 2012
Posts: 1602
Location: Indianapolis, IN
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| Posted: Sun Aug 13, 2017 4:33 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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| BillJohnson wrote: |
| aerosurfer wrote: |
You have the 79 Cali system on your bus. do you need or want the Catalytic converter replaced and do you still have the fuel injection on it? if you need the cali exhaust your options are limited
if the pax side is still usable reuse that one. but from the motor, you need federal 79' only Square port heater boxes. then any muffler setup for a 72-74 system will work for you |
How do you know I have a 79 Cali system? Don't think I have a catalytic converter. The muffler guy showed me where the exhaust pipe bolts into the (heater box?) on the driver's side. This pipe needs to be replaced. I don't think I need to replace the heater boxes.
Fuel injection was ripped out before I bought the bus. I had Dellortos until they developed the dreaded Dellorto drip. Had them both repaired and rebuilt by Dave Hogarth of Blackline Racing but had to buy Webers in the interim. (Anyone interested in 44 IDF Dellortos?)
So, why am I looking for a 72-74 muffler exhaust pipe for a 79 bus? Just wondering? |
i guess we dont know what you have. the pictures in this thread are if the Cali system. post up some pictures then we can help better for you
_________________
Rebuild your own FI Harness..My Harness
77 Westy 2.0L Rockin and Rolling Resto!
72 Sportsmobile (sold)
79 Tran$porter... Parts car money machine (gone) |
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lil-jinx
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Joined: August 14, 2013
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Location: New Brunswick,Canada
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BillJohnson
Samba Member
Joined: October 18, 2006
Posts: 306
Location: Lake Forest Park, WA
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| Posted: Sun Aug 13, 2017 8:05 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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Definitely seem to have a driver's side heater box. The pipe (is it called the "crossover pipe?") that is attached to the driver's side heater box (and also the pas side heater box) is the pipe he claims is too rusty to use. You can see that the muffler on here is not a standard VW muffler and it looks like they had to weld the crossover pipe to it.
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1979 Type 2 w/ Weber 40 IDF carbs
2003 Jetta TDI |
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airkooledchris
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Joined: January 25, 2005
Posts: 2707
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| Posted: Sun Aug 13, 2017 8:28 pm Post subject: Re: Exhaust manifold recommendations for '79 bus? |
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You have the easiest setup to need parts for already, good for you. That's a federal 79 btw.
You can go with the Vintage Speed stainless unit, the EMPI stainless unit or the regular EMPI unit easy.
http://www2.cip1.com/ProductDetails.asp?ProductCode=C13-3771
This is probably the one I would try next if mine was due. I have the Vintage Speed unit now and it's nice, but I think the engine does prefer a proper collector to some degree. The EMPI stainless won't last as long as the Vintage Speed unit im sure, because EMPI, but it'll last a hell of a lot longer than the standard EMPI unit.
Whatever you do - just don't get those god awful dual exhaust EMPI units and you'll be fine .. |
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