Muffler flange

Discussion on fuel delivery & intake/exhaust tech & mods.
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Car54
Posts: 87
Joined: Sun Nov 14, 2021 10:08 pm
Location: Allentown, PA

Muffler flange

Post by Car54 »

1st I’m saving up to upgrade my exhaust.

The flipping flange to the muffler, half of one bolt broke/snapped off, yup rust. The other half looks to be stuck to the other flange.

Are they welded in place or do I just need a BFH n Carlins 15 min of words you cannot say on tv?

Just want it to hold up for another 2 months
Sanford
Posts: 356
Joined: Mon Dec 12, 2016 9:38 pm
Location: Texas Gulf Coast

Re: Muffler flange

Post by Sanford »

You need to get ahold of an oxy/acetylene torch and heat the head of the bolt until it is red and then quench with water. If it does not turn loose, you may have to reheat. If there is any bolt sticking out on the broken one, you can just heat the threaded end. This method has worked good for me for the last 45 years.
Datcaprice
Posts: 5
Joined: Mon Sep 30, 2019 10:05 am

Re: Muffler flange

Post by Datcaprice »

Do either of you 2 know the correct bolt size? one snapped on either muffler, and I'd like to buy new bolts, before I take everything apart.
s/c'd cav
Posts: 1382
Joined: Mon May 30, 2016 3:12 am
Location: PHOENIX AZ

Re: Muffler flange

Post by s/c'd cav »

part # and size - 11588738 03.704 BOLT, EXH MUFF (M10X1.5X30.4)
Datcaprice
Posts: 5
Joined: Mon Sep 30, 2019 10:05 am

Re: Muffler flange

Post by Datcaprice »

Thank you.
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