Should I drill holes in mufflers? - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

junkyardjohn · 01-14-2004, 01:29 PM

MAYBE I HAD EM & JUST NEVER NOTICED. THE LAST NEW TRUCK I HAD WAS IN 1989 (IT WAS A COMPANY TRUCK & I ONLY HAD IT FOR A YEAR & A HALF) & I'VE BEEN DRIVING THESE OLD TRUCKS ALMOST EXCLUSIVELY SINCE 1985. SORRY IF I HURT YOURE FEELINGS.

I'VE BEEN AROUND THESE OLD TRUCKS, SEEMS LIKE FOREVER, & HAVE NEVER SEEN THE DRAIN HOLE THING. SHOOT I WAS W....WR....WRO.... WRONG ONCE BEFORE YA KNOW.

JOHN

**CPNE** · 01-14-2004, 02:07 PM

JYJ, I have a whole bunch of those stock muffler holes stored with my bench seat collection! If ya need one, I have it. Just give me plenty of lead time as them suckers are hard to locate (you know how it is when you misplace a hole, darn thing disappears), but I have a whole drawer full of them somewhere.

I also have the ACME knock-offs too. The kind the coyote used on the road runner.

Okay I've lighten things up a bit here I hope:p

Gene · 01-14-2004, 02:25 PM

I had a 1997 Z-71 and it had a small 1/4 inch hole on the bottom back part of the muffer and I thought it was a rust hole until I looked at my friends 98 Z-71 and it had the same hole as mine in exactly the same spot so I would have to say drain holes are most definitely not

Now as far as drilling holes in a muffler I would not do it myself.

junkyardjohn · 01-14-2004, 02:36 PM

THANKS CPNE -- I APPRECIATE THE OFFER BUT WITH THE WAY I WELD (KINDA RESEMBLES GOOSE POOP) I USSUALLY HAVE SEVERAL NON DESIGNED IN DRAIN HOLES IN EVERY MUFFLER I WELD ON.

JOHN

Jace's68 · 01-14-2004, 05:09 PM

I wouldn't worry about it. I've seen several vehicles over the years with the mufflers mounted like this with no problems. All mufflers are going to hold moisture, no matter how they are mounted.

lewi · 01-14-2004, 05:17 PM

very entertaining posts, thanks.

KEH · 01-14-2004, 05:19 PM

Thanks for all the replies. I'm going to leave things as is and not worry about it.

jimfulco · 01-16-2004, 05:40 AM

1. If you drive the boat fast enough with the plug out, the water will flow back out of the boat.

2. If you drive the truck far enough and/or fast enough the water in the muffler (a normal combustion by-product) will evaporate.

3. If you drill a hole in the muffler, it will immediately begin rusting at that hole.

01-14-2004, 01:29 PM	#1
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,427	MAYBE I HAD EM & JUST NEVER NOTICED. THE LAST NEW TRUCK I HAD WAS IN 1989 (IT WAS A COMPANY TRUCK & I ONLY HAD IT FOR A YEAR & A HALF) & I'VE BEEN DRIVING THESE OLD TRUCKS ALMOST EXCLUSIVELY SINCE 1985. SORRY IF I HURT YOURE FEELINGS. I'VE BEEN AROUND THESE OLD TRUCKS, SEEMS LIKE FOREVER, & HAVE NEVER SEEN THE DRAIN HOLE THING. SHOOT I WAS W....WR....WRO.... WRONG ONCE BEFORE YA KNOW. JOHN __________________ junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES// LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST

01-14-2004, 02:07 PM	#2
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,664	JYJ, I have a whole bunch of those stock muffler holes stored with my bench seat collection! If ya need one, I have it. Just give me plenty of lead time as them suckers are hard to locate (you know how it is when you misplace a hole, darn thing disappears), but I have a whole drawer full of them somewhere. I also have the ACME knock-offs too. The kind the coyote used on the road runner. Okay I've lighten things up a bit here I hope:p __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

01-14-2004, 02:25 PM	#3
Gene Registered User Join Date: Aug 2002 Location: Muskogee, Oklahoma Posts: 2,914	I had a 1997 Z-71 and it had a small 1/4 inch hole on the bottom back part of the muffer and I thought it was a rust hole until I looked at my friends 98 Z-71 and it had the same hole as mine in exactly the same spot so I would have to say drain holes are most definitely not Now as far as drilling holes in a muffler I would not do it myself. __________________ 1971 SWB 4X4 Build BOARD MEMBER #5448 BOOMER SOONER!!!!

01-14-2004, 02:36 PM	#4
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,427	THANKS CPNE -- I APPRECIATE THE OFFER BUT WITH THE WAY I WELD (KINDA RESEMBLES GOOSE POOP) I USSUALLY HAVE SEVERAL NON DESIGNED IN DRAIN HOLES IN EVERY MUFFLER I WELD ON. JOHN __________________ junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES// LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST

01-14-2004, 05:17 PM	#6
lewi Registered User Join Date: Nov 2002 Location: Redding California Posts: 223	very entertaining posts, thanks. __________________ 1971 Chevy Cheyenne 383/350 LWB 2wd Built to use, and look good.

01-14-2004, 05:09 PM	#5
Jace's68 Registered User Join Date: Sep 2002 Location: Kentucky Posts: 107	I wouldn't worry about it. I've seen several vehicles over the years with the mufflers mounted like this with no problems. All mufflers are going to hold moisture, no matter how they are mounted.

01-14-2004, 05:19 PM	#7
KEH Better late than never Join Date: Dec 2001 Location: Columbus, IN Posts: 324	Thanks for all the replies. I'm going to leave things as is and not worry about it. __________________ 1970 C/10 SWB Stepside

01-16-2004, 05:40 AM	#8
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	1. If you drive the boat fast enough with the plug out, the water will flow back out of the boat. 2. If you drive the truck far enough and/or fast enough the water in the muffler (a normal combustion by-product) will evaporate. 3. If you drill a hole in the muffler, it will immediately begin rusting at that hole.

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