1.9 exhaust bolt size

erdonline · Posted: Mon Sep 09, 2013 6:44 am Post subject: 1.9 exhaust bolt size

Anyone know the size of the bolts and nuts for the muffler bracket and muffler strap on a 1.9? I've got to do the job on both my Vanagons and I'd like to have the hardware ready when I remove/cut off the very rusty ones in place now.

Thanks,Ed
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'85 Vanagon Westfalia
'84 Vanagon 7-passenger
'98 Mexican air-cooled Beetle

T3 Pilot · Posted: Mon Sep 09, 2013 6:49 am Post subject:

M8x25

Check out vagcat.com

It is a great reference for details like this......

Good Luck
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1988 Vanagon

The most important part in every vehicle is the nut behind the wheel......

erdonline · Posted: Mon Sep 09, 2013 9:16 am Post subject:

Thanks for that reminder. I hadn't used Vagcat in a while, and I just signed up again last week. Some of the pictures are a little blurry, but it's still helpful.

Ed
_________________
'85 Vanagon Westfalia
'84 Vanagon 7-passenger
'98 Mexican air-cooled Beetle

geo_tonz · Posted: Mon Sep 09, 2013 10:13 am Post subject:

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

http://www.gowesty.com/ec_view_details.php?id=4311&category_id=&category_parent_id=

http://www.van-cafe.com/home/van/page_567_279/exhaust_hardware_kit.html
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Red Vanagon

"Ron Burgundy": 1991 Vanagon Multivan (Weekender) 2.1L Auto - Driver/Camper

erdonline · Posted: Mon Sep 09, 2013 10:30 am Post subject:

While that GoWesty diagram is helpful for most of the bolts and studs, it leaves out the location I was looking for- the bolts on either end of the muffler strap.

Ed
_________________
'85 Vanagon Westfalia
'84 Vanagon 7-passenger
'98 Mexican air-cooled Beetle

Dwighia · Posted: Tue Jan 18, 2022 4:48 pm Post subject: Re: 1.9 exhaust bolt size

This is obviously for future generations, but I had the same question about bold sizes.
So here is what I'm using to replace the Cat, the Muffler, and the Tail pipe on my '84 Vanagon Camper Auto:

1. Muffler, cat, bolts:
(3 x 8m 1.25mm x40mm + nuts/washers)
(3 x 8m 1.25mm x30mm +nuts/washers)
I believe the difference in length is that some of the bolts also connect to the cross bars supporting the muffler/cat.

2. Tail pipe - these thread directly into the muffler (3 x 8m 1.25 x20mm - no nuts/washers)

Note: I bought "flanged" bolts. Not sure if that matters.

I have no idea why the length of these bolts are slightly different than those proscribed in GoWesty's pdf.
https://www.gowesty.com/files/11.9EXH-HW-KIT%20-%2...%20Kit.pdf

Also, I wasn't able to get copper nuts, so just went with what Advance Auto had in stock.

Hope this is helpful.
Dwight
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'71 Ghia Sedan
'68 Ghia Convertible
'84 Vanagon
If you dismantle a VW engine and reassemble it enough times, will you end up with enough extra parts for another engine?


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