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Repair / How-To

Video
Diesel Aftertreatment System Cutaway
We show you all the components that make up a diesel aftertreatment system, from the end cap to the clamps and gaskets to the oxidation catalyst.
Testing for Leaks in a DPF System
Article
Testing for Leaks in a DPF System
We have seen quite a few trucks in shops today that require more frequent than normal DPF service intervals. Not a great scenario for fleet or independent operators who rely on equipment uptime to… Read more
The Best Clamps for Exhaust Repairs
Article
The Best Clamps for Exhaust Repairs
NORMA offers a couple different clamps that help technicians avoid exhaust system comebacks and provide robust performance. All are as good or better than the original. The NORMA EasySeal clamp… Read more
Best Clamps for Heavy-Duty Exhaust Systems
Article
Two of the Best Clamps for Heavy-Duty Exhaust Systems
When it comes to heavy-duty exhaust system repair, there are two clamp options that NORMA offers that rise to the top of the list because they offer superior performance under harsh conditions: the… Read more
Clamp 101
Article
Five Critical Elements that Impact Clamp Performance
There are several factors to consider before determining which clamp is best for the job you are working on. And if you are of mind that ‘a clamp is just a clamp’, it’s time to dispel that myth… Read more
Regulatory Info and Tips for Servicing Diesel Particulate Filters
Article
Regulatory Info and Tips for Servicing Diesel Particulate Filters
The diesel particulate filter market is experiencing steady growth due to rising regulations set by the Environmental Protection Agency. DPF filters are used on diesel engines to remove particulate… Read more
Top Five Installation Issues with Automotive Clamps
Article
The Top Five Installation Issues with Automotive Clamps
Most repair techs breeze through their repair jobs but every now and again, even the best techs get stumped. We’ve compiled our list of the top five issues that arise with clamp installation. 1.… Read more
Tips to Avoid Automotive Exhaust Clamp Failures
Article
Two Tips to Avoid Automotive Exhaust Clamp Failures
If you are a professional technician, you’ve probably seen your share of exhaust clamp failures. The complaint usually starts with a call that your customer hears a ringing sound under the car when… Read more
Torque Specifications - Worm Drive Hose Clamps & T-Bolt Hose Clamps
Article
Proper Torque Specifications for Worm Drive Hose Clamps and T-Bolt Hose Clamps
Believe it or not, the biggest mistake professional techs and do it yourselfers make when installing hose clamps is torque-related. We have seen many failures and leaks caused by overtightening the… Read more