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type-4 heat shield
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Hoody
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PostPosted: Thu Jun 13, 2013 9:35 am    Post subject: Reply with quote

Thanks for the info Tom!
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Wildthings
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PostPosted: Thu Jun 13, 2013 9:39 am    Post subject: Reply with quote

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.
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1975 Kombi
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PostPosted: Sat Dec 19, 2015 10:48 am    Post subject: Re: type-4 heat shield Reply with quote

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.
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SGKent Premium Member
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PostPosted: Sat Dec 19, 2015 11:34 am    Post subject: Re: type-4 heat shield Reply with quote

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.
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Tcash
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PostPosted: Sun Jun 19, 2016 7:24 pm    Post subject: Muffler Heat Shield Dimensions Reply with quote

72+ Muffler Heat Shield Dimensions
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Tcash
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PostPosted: Mon Jun 20, 2016 12:39 pm    Post subject: 039 119 227 type 4 exhaust heat shield Reply with quote

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:

Image may have been reduced in size. Click image to view fullscreen.


Image may have been reduced in size. Click image to view fullscreen.


Image may have been reduced in size. Click image to view fullscreen.


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!
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Martaskukla
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PostPosted: Tue Feb 13, 2018 10:44 am    Post subject: Re: type-4 heat shield Reply with quote

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?
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Wildthings
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PostPosted: Tue Feb 13, 2018 12:43 pm    Post subject: Re: type-4 heat shield Reply with quote

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.
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aeromech
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PostPosted: Tue Feb 13, 2018 12:47 pm    Post subject: Re: type-4 heat shield Reply with quote

I wouldn't worry about asbestos killing you. The cabinet ventilates into a filter system and you shouldn't be exposed to it.
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