Block Archives - Page 3 of 5 - UnderhoodService
Giving Off Bad Vibes: Motor Mount Replacement Tips

Most motor mounts are relatively simple in design and consist only of metal attachment plates and large rubber insulator blocks. But, some vehicles have “hydraulic” or “hydro-mounts” with hollow chambers filled with glycol or hydraulic fluid.

Tech Tip: Porsche 911 Turbo Lack of Oil Pressure on Start Up

Your customer may experience an instance where the oil pressure light comes on and there is a lack of oil pressure when the engine is first started.

Do You Know Where Your Small-Block Core Has Been?

The Chevy small-block has been the quintessential American performance engine for more than half a century, but it was replaced by the “LS” engine family in production vehicles more than a decade ago. That means the pool of rebuildable cores is shrinking. In many cases, you just can’t be sure of the history of those remaining cores.

Tech Feature: The DeLorean – Back From the Past

The DeLorean was often referred to as “the ethical sports car,” leading to the relatively small V6 engine and stainless-over-fiberglass construction with good fuel economy and long life in mind.

Tech Feature: Cylinder Block Prep Tips

First, you want to look for cracks on the water jacket area and in the lifter valley area. If the block has ever been frozen, this is where cracks will show up. Next, look for cracks around the main webs, these are hard to spot when the block is greasy, but we are just looking for obvious cracks now.

Tech Feature: Sports Compacts – Performing in a ‘Maturing’ Market

What started out in the 1990s as an affordable way for kids to bang around with cars that were often handed down from their parents or siblings, later grew into a fledgling market all its own.

Engine Tech Feature: Choosing the Right Fasteners for the Job

Some of the most stressed-out parts of a high-dollar

Tech Feature: Identifying Ford Duratec 3.0L Cylinder Blocks

We are going to look at the 3.0L DOHC V6 engine known as the Duratec 30 or Mazda AJ. It was introduced in 1996 as a replacement for the 3.8L 232 Essex in the Taurus/Sable, but the Duratec never matched the performance of the pushrod engine.

Tech Feature: Jeep TJ Cylinder Block Casting Information

It was considered one of the best off-road engines ever made. The extreme low-end torque is ideal for trailing and rock crawling, but “no mas” for the 4.0L Jeep. 2006 was the end of U.S. application production.

Tech Tip: 1987-93 Jeep 4.0L: Head Gasket Leaks/Seepage Found in Engines

Some vehicles equipped with a 4.0L engine, may experience engine oil leaks/seepage from the head gasket along the right-hand side (tappet rail) of the engine.

Tech Feature: Taking it to the Streets

We have all seen in our industry that a “streetable” racing engine or a “raceable” street engine appeals to a broad spectrum of potential engine buyers because of its flexibility. Yet, everyday street driving is not the same thing as serious drag racing.

Tech Tip: Honda’s V6 Engine Leaks Oil from Front/Middle/Rear

If oil is leaking from the front, middle or rear of one of the above engines, it may be due to the cast aluminum engine block may be porous in spots. Depending on the location of the leak, seal it with JB Weld or 3-Bond-coated sealing bolts.