Finding the Weak Link in Nissan KA24 SOHC Engines - Engine Builder Magazine

Main Navigation

Advertisement
Social Connect
Resources
Our Brand Family
Engine Builder Magazine Logo
Content for engine professionals and enthusiasts
Tech Center

Finding the Weak Link in Nissan KA24 SOHC Engines

Roy Berndt
By Roy Berndt
Roy Berndt has decades of machine shop experience. He is the Program Manager for PROFormance Powertrain Products, a PER in Springfield, MO. You can reach Roy at [email protected].
Published:

Many of you may have not seen this issue, but once it bites you, you will always remember the Nissan KA24 engine series in the SOHC configuration. ?

Related Articles

When the timing chain, guides and tensioner get high miles and wear the chain can actually start rubbing against the front of the block (Figure 1). ??

The wear actually looks as though it is a machined area and you may over look the big grooved area. But when the chain cut/rubs into block long enough it may actually break into the water passage (Figure 1).

More often than not when this situation occurs the chain has trashed the front cover as well and if there was coolant in the oil the cover gets the blame. ?

So take heed when you encounter the KA24, 2.4L SOHC Nissan engine for remanufacturing: there may be a hidden problem that can easily get over looked. Make certain that you inspect the front of the block and if there is any chain rub groove you better make certain that enough casting thickness remains not to end up with a coolant breach.

Roy Berndt has decades of machine shop experience.
He is the Program Manager for PROFormance
Powertrain Products, a PER in Springfield, MO. You can reach Roy at [email protected].Figure 1 KA24 Nissan SOHC block may have timing chain wear that looks like a machined surface. The black square area is a hole into the coolant passage.

You May Also Like

Engine Components

Factors of Crankshaft Selection

From the high-performance powerplants propelling Top Fuel dragsters to the subdued engines found in family sedans and grocery getters, each crank must be tailored to, and appropriate for, its specific application.

Avatar
By Dan Schechner
Published:

We know a crankshaft plays a critical role in an engine’s performance, converting reciprocating motion into rotary motion while serving as the backbone of the entire system. It must be strong enough to withstand the continuous pounding of rods and pistons, yet possess enough elasticity to absorb vibrations and flex, albeit slightly, when needed.

Read Full Article

More Tech Center Posts
Shop Solutions March 2024

I always keep a pair of needle nose pliers and a small, straight screwdriver in my blast cabinet to hold small parts when blasting.

By Shop Solutions – The Power of Knowledge
Shop Solutions – February 2024

Submit your Shop Solution at [email protected].

By Shop Solutions – The Power of Knowledge
Degreeing the Camshaft and Checking Valve-to-Piston Clearance

Jeff McCord of LinCo Diesel Performance walks you through degreeing a camshaft and checking valve-to-piston clearance.

By Jeff McCord
Designing a Better LS Engine

After a customer wanted a Steve Morris Engines’ SMX in an LS version, Steve saw the upside and potential in the market, and a challenge to build a better LS.

By Greg Jones

Other Posts

The Importance of a Good Valve Job

The valve job ensures the mating surfaces of the valves and the seats properly control the air/fuel mixture.

By Greg Jones
Getting Better Cylinder Head Airflow

When it comes to improving horsepower and rpm, airflow has a lot to do with it, and it seems the job is one that’s never finished.

By Greg Jones
Horsepower and Head Gasket Technology

Head gaskets have one of the toughest job in an engine, and now we’re pushing them harder than ever, making it easier to expose the slightest weakness.

By Eric Garbe
Inside the Development of Frankenstein’s F-Series LS Cylinder Heads

Right away, engine builders knew it was special.

By Engine Builder