Recent Topics
2019 Ram Battery Issue
by NYEngineer - 02/25/20 06:00 AM
belt squeaking suddenly
by dogememe - 02/24/20 11:45 PM
Is Mobil 1 advanced synthetic a full synthetic?
by apollo18 - 02/24/20 11:08 PM
what stocks to buy?
by daves66nova - 02/24/20 08:55 PM
I thought Windows 7 would be insecure now?
by atikovi - 02/24/20 08:48 PM
When to replace struts
by ram_man - 02/24/20 08:40 PM
Fluid Film + Cayenne Pepper
by pitzel - 02/24/20 05:22 PM
Ford Focus RS Oil Advice!
by fastsvo - 02/24/20 04:23 PM
Cleanest wheels on same axle or same side of car?
by atikovi - 02/24/20 04:13 PM
Mixing 2 stroke oils
by Hirev - 02/24/20 03:57 PM
Insa Turbo Ecosaver Plus
by faramir9 - 02/24/20 03:45 PM
Repair Rusted Rocker Panels Without Welding
by Fitz98 - 02/24/20 03:33 PM
Stalwart tools
by P10crew - 02/24/20 03:32 PM
VOA Eneos Racing Street 0w-50
by zip15 - 02/24/20 03:09 PM
What is your favorite Candy Bar?
by ZZman - 02/24/20 02:27 PM
Help me understand
by 1978elcamino - 02/24/20 02:25 PM
2019 VW Passat Trip Mileage
by Boomer - 02/24/20 01:13 PM
Changed my ATF, difference is crazy!
by cwilliamsws6 - 02/24/20 12:36 PM
Newest Members
EarlT500, Newbie111, Boris_Be, NHR, zip15
70798 Registered Users
Who's Online Now
87 registered members (ARB1977, 2003f7, 1911CHAMPION, Arob, 1foxracing, Aero540T, 4 invisible), 1,798 guests, and 19 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
Page 2 of 2 1 2
Re: Exhaust clamps, regular or guillotine? [Re: Silverado12] #5281799 12/01/19 09:39 AM
Joined: Apr 2010
Posts: 4,016
atikovi Offline OP
OP Offline
Joined: Apr 2010
Posts: 4,016
Originally Posted by Silverado12
A guy at the muffler shop showed me a trick a long time ago. He used high temp silicone RTV on the joints and it lasts the life of the exhaust system for sealing minor leaks. Sometimes you slightly deform a joint when you take apart the system and this will prevent leaks.

You sure it wasn't exhaust sealant made specifically for mufflers and pipes? Can't imagine silicone holding up under the heat and pressure.

[Linked Image from]

Re: Exhaust clamps, regular or guillotine? [Re: atikovi] #5281841 12/01/19 10:18 AM
Joined: Apr 2015
Posts: 686
Mainia Offline
Joined: Apr 2015
Posts: 686
No, while both will work, modern day high temp silicone works and is more fluid and seals better.

2018 Lowered Hyundai Kona AWD 1.6T
2014 Toyota Rav4 AWD
2005 Honda Civic
Re: Exhaust clamps, regular or guillotine? [Re: atikovi] #5281853 12/01/19 10:36 AM
Joined: Jun 2003
Posts: 35,285
eljefino Offline
Joined: Jun 2003
Posts: 35,285
Silicone works fine after the cat as exhaust cools down by then. They sell orange RTV that claims high temp.

Re: Exhaust clamps, regular or guillotine? [Re: atikovi] #5281980 12/01/19 12:36 PM
Joined: Aug 2017
Posts: 1,214
Dave9 Offline
Joined: Aug 2017
Posts: 1,214
If your pipes fit together that badly (that you feel you need a sealant), why not just expand the smaller one till they're a tighter fit?

The cheap plain steel clamps have their place, but if you want to get it apart again later, with less effort and destruction, avoid the goop and just put a band clamp on tight fitting pipes. Make it stainless if you anticipate some portions of the exhaust wearing out faster than others, for example using a stainless muffler with an aluminized pipe after it instead of stainless, so there is a greater possibility you will need to remove that clamp instead of just detaching or cutting out the parts on both sides of it.

The piece at the bottom (screw end) of the band clamp is not much of an issue. Yes it has a fixed curvature, but it is pretty close per the pipe diameter, you are putting this on thin walled tubing so as you tighten it, the tubing conforms that slight bit to that curvature.

Last edited by Dave9; 12/01/19 12:39 PM.
Page 2 of 2 1 2
Previous Thread
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™