Shop Line - Engine Builder Magazine

Main Navigation

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

Shop Line

Engine Builder
By Engine Builder
Published:

Q: I’ve had difficulty getting the main bearing clearances correct on some Ford 2.5L engines. Do you know of any updates?

Related Articles

A: The AERA Technical Committee offers the following information regarding the main bearing bore for 1993-2002 Ford 2.5L VIN B and KL engines. This engine is made by Mazda and has been used in the Probe and 626 models. Engine builders should exercise caution in determining the correct main bearing bore diameter for these engines. It appears some previously published information is inaccurate.

The amount of inaccuracy is minimal but if observed and used, it will provide insufficient main bearing oil clearance. Many service specifications have listed a housing bore diameter .002″ smaller than it should be.

The correct main bearing housing bore size for the above engine is 2.6378″-2.6384″ (67.000-67.016 mm). Desired main bearing oil clearance is listed as .0015-.0022″ (.038-.056 mm).

Q: I’ve had a few injector sleeves come out when trying to remove an injector on some Duramax engines. Any tips on how to repair these?

A: The AERA Technical Committee offers the following information regarding injector tube installation for 2001-2006 GM 6.6L Duramax diesel engines. This information should be considered anytime the cylinder heads are being serviced.


This engine uses a removable sleeve to locate and house the injectors for this engine. These sleeves are in direct contact with the engine coolant, which allows the injector to be a constant temperature. On occasion, the sleeve may come out with the injector when it is being removed from the cylinder head. It is important to replace any injector sleeve with scoring or other damage.
Clean the fuel injector sleeve lower sealing area and the sleeve bore with GM p/n 12377981, (Canadian p/n 10953463), or equivalent. When installing injector sleeves, always use new sealing “O” rings.

  1. Lubricate the new injector “O” rings (1) and place in the injector sleeve (2) grooves as shown in Figure 1

  2. Apply sealant (Loctite® 272 or equivalent) to the lower sealing area of injector sleeve.

  3. Place the sleeve in its respective bore and use the sleeve Remover/Installer tool p/n J45910 to install the sleeve as shown in Figure 2.

  4. Lightly tap on J45910 with a hammer to install and seat the fuel injector sleeve.

  5. Remove J45910 from the fuel injector sleeve.

  6. Install the fuel injector(s).

For information on receiving all of AERA’s regular monthly technical bulletins and other association services and benefits, call toll free 888-326-2372 or send an e-mail to [email protected].

You May Also Like

Commentary

Don’t Put the Cart Before the Horse

Happy New Year everyone! I trust you all enjoyed the holiday season and are hitting the gas full throttle now that we’re in a new year and January is already flying by. Personally, I’m not generally big on making resolutions – at least not ones that require tons of effort or ones I know I

Greg Jones
By Greg Jones
Greg Jones is Content Director and Editor of Engine Builder Magazine.
Published:

Happy New Year everyone! I trust you all enjoyed the holiday season and are hitting the gas full throttle now that we’re in a new year and January is already flying by. Personally, I’m not generally big on making resolutions – at least not ones that require tons of effort or ones I know I won’t achieve – so what follows might be hypocritical of me.

Read Full Article

More Commentary Posts
Changing the Narrative Surrounding the Automotive Industry

Every now and then, one of my local radio stations in the Cleveland area invites people to call in who recently got ghosted after a first date. For those who need the definition of ghosting, it’s when someone cuts off all communication without explanation. The radio station tricks the ghostee into telling their side of

By Greg Jones
Brand Loyalty – is it a Thing of the Past?

Well folks, it’s late September and summer has officially come to a close. If you’re like me, you’ll miss those warm weather days and longer hours of daylight, but it’s been a great few months of race events, car shows, seeing customers, visiting shops, and of course, creating tons of content. In fact, one of

By Greg Jones
Engine Builder Attends SBI’s 40th Anniversary Gala

If there’s anything that these past couple years has demonstrated, it’s that nothing is for certain in life or in business. In these days of such ever-changing environments, economies, consumer habits and the like, it’s more than impressive when a company reaches a major milestone. In July, the team at S.B. International, located in Nashville,

By Evan Laux
SBI Gala
Summer Vibes and a Dream Engine Giveaway

How can you not love summer? Sure, it gets hot, but it definitely beats the cold, and there’s so much going on to occupy your time. Here at Engine Builder, our team has stayed extremely busy attending racing events, shows, visiting manufacturers and engine shops, as well as our usual content work.

By Greg Jones

Other Posts

Should Driving Be Outlawed by 2050?

As the world changes, so too does the automotive industry. Will self-driving cars eventually take over?

By Greg Jones
Male or Female – Passion Fuels Our Industry

Whether you’re a man or a woman, you can relate to that feeling this industry gives you and you want to immerse yourself in it. That’s what makes this industry great.

By Greg Jones
Ed Iskenderian of Isky Racing Cams Celebrates 100

July 10, 2021 marked the 100th birthday of Isky Racing Cams founder Ed Iskenderian. The man is an icon in the industry.

By Greg Jones
Start with Engine Basics

This column is for the young folks out there who believe they have passion for automotive performance. You see the people in this industry and you really want to get involved. I get a lot of calls and emails from these younger folks who want to maybe intern or come to the shop to learn.

By Nate Bush