Super Street Network

 |   |   |  Engine Block Repair - Tricks of the Trade

Engine Block Repair - Tricks of the Trade

Helping You Wrench

Mar 17, 2011

If you work and/or play in the automotive world, you’re familiar with a product called J-B Weld. J-B Weld is a two-part epoxy adhesive (or filler): an epoxy resin (black tube) and a hardener (red tube). When mixed together in equal portions, a chemical reaction occurs that turns the mixture into a rock-solid compound once cured, offering tensile strengths of up to 3,960 psi; heat resistance up to 500 degrees Fahrenheit; and is impervious to water, gasoline, chemicals, and acids. Since the introduction of J-B Weld in 1968, consumers have thought and heard of many uses for this do-it-all epoxy, ranging from plugging radiator leaks to repairing cracked intake manifolds.

Impp_1106_01_z+engine_block_repair+jb_weld Photo 2/7   |   Engine Block Repair - Tricks of the Trade

J-B Weld is known as a great tool for closing voids and sealing cracks, so we figured it would be the perfect product for repairing our scuffed/gashed Subaru engine block surface. Simply masking the problem by applying thick globs of silicone sandwiched between the damaged block and oil pan would serve as a quick fix, but only leak over time. Instead, we mixed up some J-B Weld and applied the epoxy to the damaged area before smoothing it out using a razor blade. A clean shop rag was used to wipe away excess material before allowing the epoxy to cure for 24 hours. After it had cured, it was time to sand and/or grind the block surface flat before reinstalling the oil pan.

Impp_1106_04_z+engine_block_repair+damage Photo 3/7   |   Engine Block Repair - Tricks of the Trade

BROWSE CARS BY MARKET

MORE HOW TO

For a lot of enthusiasts, it’s the first modification any car gets: suspension. But there’s more to satisfying handling than just springs and dampers.
Bob HernandezAug 26, 2016
Correcting OEM drivetrain weaknesses on the Scion FR-S/Subaru BRZ
Jofel TolosaAug 25, 2016
Get acquainted with our latest project car and one of the most underrated European sedans on the market.
Michael FebboAug 22, 2016
When it’s time to start thinking about upgrading the engine and drivetrain for optimal power transfer, consider the gear in our 2016 Powertrain Parts Guide
Jofel TolosaAug 17, 2016
It's time to throw out the factory seats and step up the interior game.
Jofel TolosaAug 16, 2016

SEARCH ARTICLES BY MAKE/MODEL

Search
TO TOP