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About this blog

Introducing the ultimate resource for Porsche engine enthusiasts, curated by the experts at LN Engineering and Flat 6 Innovations. This blog dives deep into the world of Porsche engines, offering expert insights, tips, and technical guides on everything from air-cooled classics to modern water-cooled powerplants. Whether you're looking for advice on performance upgrades, engine maintenance, or cutting-edge engineering solutions, this blog is your go-to destination for all things Porsche.

Jake Raby rebuilding a Porsche engine
Charles Navarro presenting at Porsche Parade

With decades of combined experience, Charles Navarro from LN Engineering and Jake Raby from Flat 6 Innovations bring their unmatched expertise directly to you.

Entries in this blog

LN Engineering

Two Critical Steps Most People Overlook When Replacing Their IMS Bearing: Pre-Qualification and Installation Registration

When replacing the intermediate shaft (IMS) bearing in your Porsche Boxster, Cayman, or 911, the steps for pre-qualification and registration are essential yet often overlooked. Developed and refined by expert Porsche engine rebuilder, Jake Raby, of Flat 6 Innovations, these steps ensure that the IMS bearing replacement is performed on a healthy engine and that the work is documented for long-term reliability. Here’s an in-depth look at why these steps are crucial and how to complete them effect
lnengineering

lnengineering in LN Engineering

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LN Engineering

Perfecting the Break-In Process: A Guide to Sealing Piston Rings in Nikasil and Cast Iron Bores

The break-in process is a critical final step in engine assembly, often misunderstood yet essential to achieving a reliable, high-performance engine. Even with the best components and precise machining, improper break-in can lead to premature wear, poor ring seal, and reduced engine life. In this guide, we’ll dive into the science behind break-in, focusing on the nuances of piston ring sealing in different bore materials, particularly the ultra-hard Nikasil, and explain how proper break-in sets
LN Engineering

Mastering Engine Break-In: The Essential Guide for Porsche Enthusiasts

Breaking in a new or freshly rebuilt engine isn’t just a matter of getting it running—it's a carefully managed process that ensures longevity, performance, and reliability. Even with the best parts and precise assembly, improper break-in can lead to premature wear, inefficiency, and costly rebuilds. In this guide, we’ll cover the critical steps of engine break-in, common pitfalls to avoid, and key practices that will keep your engine performing at its best. 1. Cleanliness is Key:
LN Engineering

Avoid Engine Woes: Essential Tips for Finding and Fixing Vacuum Leaks in Your Porsche

Keeping your Porsche running smoothly requires more than just routine maintenance. One of the most common (and often overlooked) sources of engine issues is a vacuum leak. Whether you’re dealing with a rough idle, erratic behavior, or unexplained check engine lights, vacuum leaks are frequently the hidden culprits. This guide will walk you through detecting and diagnosing vacuum and false air leaks, caring for aging plastic components, and essential cooling system maintenance for water-cooled Po
LN Engineering

Using Manometer and Smoke Testing to Diagnose Porsche Engine Problems

Diagnosing Vacuum Leaks in Porsche Engines: Using Manometers and Smoke Testing When diagnosing engine issues in Porsche models, particularly those that may affect fuel trim and cause lean running conditions, it’s essential to look for vacuum leaks. Tony Callas, an expert in Porsche diagnostics, shares insights into using specialized tools like manometers and smoke testers to pinpoint issues effectively. Here, we’ll dive into these tools, how they work, and why they are critical for accurate
LN Engineering

How do you diagnose fuel trim issues on Porsche Engines?

Diagnosing Fuel Trim Issues in Porsche Engines: A Comprehensive Guide This guide combines insights from professional diagnostics and Porsche-specific fuel trim analysis, helping Porsche owners and technicians alike understand and address fuel delivery issues. Fuel trim data is a valuable diagnostic tool in modern Porsche engines, especially for identifying potential fuel delivery issues. Whether you own a Porsche Boxster, Cayman, or a 911, understanding fuel trim adjustments can be the key
LN Engineering

Why should you replace your Porsche water pump before it fails?

The water pump in a Porsche engine is vital for its functioning. Failure of this component can lead to serious issues beyond just coolant loss or engine overheating. Worse of all, failure of a water pump can lead to cracked cylinder heads, which can be a very costly repair, easily exceeding $10,000. That's why It is very important to replace your Porsche Boxster, Cayman, or 911's water pump before it fails. Key points to takeaway from this blog post include:  ·       Importan
LN Engineering

Understanding Porsche 996 and 997 Bore Scoring: Causes, Solutions, and Rebuild Options

Porsche 996 and 997 bore scoring is a well-documented issue that affects many water-cooled Porsche models, particularly the 996 (1999-2004) and 997 (2005-2008). As one of the most concerning engine issues for Porsche owners, it’s crucial to understand its causes, how to prevent it, and what options exist for rebuilding or addressing the problem on 3.4, 3.6, and 3.8 liter M96 and M97 engines where Porsche cylinder bore scoring can occur. What Is Bore Scoring? Bore scoring refers t


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