Start Free cam random bradford

Free cam random bradford

This is critical because excessive engine cranking wipes the lube off the lobes before the engine starts.

The engine you spent a month carefully assembling has just fired and is running great while you carefully monitor oil pressure and break in the flat-tappet camshaft.

The feeling of euphoria that washed over you when the engine lit for the first time is soon followed by a crushing low.

Another engine builder suggested that if the flat-tappet lobes are centered in the lifter bores it can contribute to reducing lifter spin, which will also kill lifters.

It’s All About Oil While flat-tappet cams and materials haven’t changed much in the last 10 years, engine oil and other lubricants have mutated rapidly as the demands for improved power, emissions, fuel economy, and extended drain intervals have continued to escalate.

In the old days, the drill began with coating the camshaft with that black moly grease.

Today you’ll notice that most camshaft manufacturers are using a more viscous liquid.

We’ll even break down the latest changes in oil and how those numbers are scarier than getting a registered letter from the IRS.

Cam Break-In Basics In terms of cam break-in we’ve learned some twists on an old story.

While most enthusiasts are aware of the significant changes in oil, what has received much less attention is the importance of using moderate spring pressures to ensure proper life span.

For example, we used a set of typical Z28-style valvesprings in our most recent small-block.

First, we’ll go through the basic procedure for how to ensure a flat-tappet camshaft will survive its first 20 minutes of life, since that’s when these new parts are most vulnerable.