| Author |
Message |
Hoody
Samba Member
Joined: November 28, 2007
Posts: 1948
|
 Posted: Thu Jun 13, 2013 9:35 am Post subject: |
 |
|
| Thanks for the info Tom! |
|
| Back to top |
|
 |
Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50337
|
| Posted: Thu Jun 13, 2013 9:39 am Post subject: |
|
|
| poptop tom wrote: |
| My CHT's (DD) are running the same as before I installed my heat shield this spring. |
I wouldn't expect to find much difference in the head temps, heat shield or no. What I would expect to find and have found is a difference in how long the foam gasket lasts. |
|
| Back to top |
|
|
1975 Kombi
Samba Member
Joined: August 12, 2007
Posts: 2452
Location: Acton, Ontario, Canada
|
| Posted: Sat Dec 19, 2015 10:48 am Post subject: Re: type-4 heat shield |
|
|
Just throwing another idea out there but wouldn't header tape wrapping the muffler be a better way of keeping the heat in the muffler and while your at it wrap the entire heater boxes and pipes.
_________________
Brett
“He’s decieving you boy! Reach into his pocket and take what he’s got.” Mr. Crabbs.
75 Westy auto
03 Jetta TDI
71 SB
74 Westy
Licensed pilot (single engine land VFR)
--
Rust In Pieces: 72 Bug, 73 Bug, 81 Rabbit LS D 2D, 83 Rabbit D 2D, 84 Jetta TD GL, 85 Jetta D, 68 Z28 RS 302, 91 Passat 16v |
|
| Back to top |
|
|
SGKent 
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
|
| Posted: Sat Dec 19, 2015 11:34 am Post subject: Re: type-4 heat shield |
|
|
| 1975 Kombi wrote: |
| Just throwing another idea out there but wouldn't header tape wrapping the muffler be a better way of keeping the heat in the muffler and while your at it wrap the entire heater boxes and pipes. |
if you do some searching you will find that the biggest complaint about header tape is that it causes massive rust due to trapped moisture. I have no experience with it as we always ran our headers bare, but there are hundreds of articles and posts from people who say the rust is real.
_________________
“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
|
| Back to top |
|
|
Tcash
Samba Member
Joined: July 20, 2011
Posts: 12844
Location: San Jose, California, USA
|
|
| Back to top |
|
|
Tcash
Samba Member
Joined: July 20, 2011
Posts: 12844
Location: San Jose, California, USA
|
| Posted: Mon Jun 20, 2016 12:39 pm Post subject: 039 119 227 type 4 exhaust heat shield |
|
|
| ROCKOROD71 wrote: |
Figured I'd post this here for posterity instead of starting a thread. Just got my heat shield from CIP1, so here are some crappy flip phone photos:
Was kind of surprised to see a Jopex Group sticker on there. I'm wondering if these are new production or old stock of something they no longer make?
The quality looks ok, thick gauge metal, welds on the brackets, etc.
Th one thing I noticed right away was in the pics I've seen of the OG shields it looks like two pieces of metal, with insulation or something between, and one side folded over the other, then spot welded. This piece looks to be just two identical pieces of metal with many spot welds all the way around, doesn't look to have that insulation between the two. Comes with thee old shop wear resistant paint on it. I will strip, paint with VHT and bake ASAP.
Anyways, here are the part numbers:
OG VW: 039 119 227
Jopex/JP Group: 8182600500
Barcode sku: 5710412426361
Made in Denmark
We'll see how it installs/holds up! I was just glad to find one! |
|
|
| Back to top |
|
|
Magion
Samba Member
Joined: February 15, 2016
Posts: 236
Location: Vancouver, BC
|
| Posted: Tue Feb 13, 2018 10:44 am Post subject: Re: type-4 heat shield |
|
|
I took mine out yesterday and as expected it has lots of surface rust. I am going with more parts to a place where you media blast yourself. My concern is what is inside between the layers of metal sheet? Is that some sort of asbestos?
And if it is, Is it safe to media blast (of course assuming I wont be blasting directly into the gap) in enclosed blasting box?
_________________
1975 Westfalia in Brilliant Orange
1995 Westfalia in Caribbean Green |
|
| Back to top |
|
|
Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50337
|
| Posted: Tue Feb 13, 2018 12:43 pm Post subject: Re: type-4 heat shield |
|
|
| Martaskukla wrote: |
I took mine out yesterday and as expected it has lots of surface rust. I am going with more parts to a place where you media blast yourself. My concern is what is inside between the layers of metal sheet? Is that some sort of asbestos?
And if it is, Is it safe to media blast (of course assuming I wont be blasting directly into the gap) in enclosed blasting box? |
When I redid mine I just left the stuff out. In this particular instance I doubt the bit of extra insulation makes much difference. Hot air is going to get above the heat shield no matter what so all the shield can do is block the radiant heat. |
|
| Back to top |
|
|
aeromech
Samba Member
Joined: January 24, 2006
Posts: 16959
Location: San Diego, California
|
| Posted: Tue Feb 13, 2018 12:47 pm Post subject: Re: type-4 heat shield |
|
|
I wouldn't worry about asbestos killing you. The cabinet ventilates into a filter system and you shouldn't be exposed to it.
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound |
|
| Back to top |
|
|
The Fez
Samba Member
Joined: April 20, 2014
Posts: 79
Location: North Vancouver
|
| Posted: Tue Mar 31, 2020 5:29 pm Post subject: Re: type-4 heat shield |
|
|
Found this useful thread when I discovered that my heat shield had corroded to the point where if 'fell off' the left hand tin screw and was resting on the muffler. Lots of great info and debate regarding whether or not to have one. I decided that I would trust the VW engineers.
The only bit of information that I want to add to this thread (just in case anyone else is looking to find out as I did search everywhere to no avail - including Bentley) is how to remove said shield with the engine in situ. At first I thought that I would have to remove the muffler, but as Atwell states, the nuts are a bear to remove. I then figured out that all you need to do is remove the three tin pieces from above and then easily remove the heat shield. I feel like a stable genius. It should have been an easy task except the PO at some point used gasket sealer on the tin surfaces.
_________________
My projects (so far):
74 Westfalia
47 Willys CJ2A
Last edited by The Fez on Fri Apr 03, 2020 9:02 am; edited 2 times in total |
|
| Back to top |
|
|
SGKent
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
|
| Posted: Tue Mar 31, 2020 6:17 pm Post subject: Re: type-4 heat shield |
|
|
| The Fez wrote: |
Found this useful thread when I discovered that my heat shield had corroded to the point where if 'fell off' the left hand tin screw and was resting on the muffler. Lots of great info and debate regarding whether or not to have one. I decided that I would trust the VW engineers.
The only bit of information that I want to add to this thread (just in case anyone else is looking to find out as I did search everywhere to no avail - including Bentley) is how to remove said shield with the engine in situ. At first I thought that I would have to remove the muffler, but as Atwell states, the nuts are a bear to remove. I then figured out that all you need to do is remove the three tin pieces from above and then easily remove the heat shield. I feel like a stable genius. It should be an easy task except the PO at some point used gasket sealer on the tin surfaces. |
use time warp solvent to roll time back to before the PO put the sealer on. 
_________________
“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
|
| Back to top |
|
|
aeromech
Samba Member
Joined: January 24, 2006
Posts: 16959
Location: San Diego, California
|
| Posted: Tue Mar 31, 2020 7:03 pm Post subject: Re: type-4 heat shield |
|
|
There another 6m bolt at the bottom of the pulley dip. The bolt goes vertical from the bottom. With the engine installed with a muffler, it makes getting that bolt out very difficult
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound |
|
| Back to top |
|
|
npalmer76
Samba Member
Joined: October 09, 2018
Posts: 14
Location: Menlo Park, CA
|
| Posted: Tue Apr 21, 2020 3:13 pm Post subject: Re: type-4 heat shield |
|
|
My 78 was missing this heat shield and the engine compartment seal when I got it.
I replaced the engine compartment seal of course, but not the heat shield.
Driving around on a hot day, I smelled something funny, like plastic burning and got out and ran to the back to see what was up right quick.
The engine seal was one fire at the lowest point and was melting a hole the plastic fan guard. I was able to rip the engine seal out and toss it away before the whole engine caught fire.
I believe the missing heat shield contributed to the engine seal lighting on fire. Never ever happened on my '77 with the heat shield. |
|
| Back to top |
|
|
aeromech
Samba Member
Joined: January 24, 2006
Posts: 16959
Location: San Diego, California
|
| Posted: Tue Apr 21, 2020 4:29 pm Post subject: Re: type-4 heat shield |
|
|
I’ve seen many missing heat shields that never started a fire. So, maybe you have a non standard exhaust causing this or something else?
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound |
|
| Back to top |
|
|
|
