Cracked Truck Engine Repair

If you've found that your Cummins 5.9-liter engine from 1999 to 2001 has developed a crack, you're not alone. Though the engines are excellent, a certain series--and namely, those with the number 53 cast on the lower drivers side of the block--have developed a crack after regular operational use. Whether you're driving a pickup truck or a big rig, a cracked engine block can spell serious trouble.

LOCK-N-STITCH Inc. is the company that Mack Trucks, John Deere, Cummins, and Caterpillar, among others, have come to count on. The experts of LNS specialize in finding long-term solutions to a variety of cast iron and other cast metal problems. You can use their experts' help directly, or simply use their solutions and do the repair yourself.

The underlying issue that the LNS team found on the Cummins 53 block cracks is a thinner area of cast iron. This physical trait is exacerbated, however, when drivers neglect to warm-up the engine completely after a cold startup. Due to reduced coolant flow around the lower part of the cylinder bores, the part of the block located below the crack is very slow to reach a uniform temperature and complete thermal expansion, putting heat-induced expansion strain on this already thin area of block. Their new reinforcement bracket can help avoid the cracking in the first place, but once a crack starts, you'll want to fix it completely using the LOCK-N-STITCH solution.

This solution involves metal stitching to seal the leak and installing the new reinforcement bracket for additional strength across the repair site. To find out more about LNS and what their team can do for you, call 800-736-8261 or 209-632-2345, or send an email directly to gary@locknstitch.com.