Shop Line - Engine Builder Magazine

Main Navigation

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

Shop Line

Engine Builder
By Engine Builder

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

SBI Gala
Commentary

Passion Runs Deep

Having had the distinct opportunity to view this industry from my chair as editor of Engine Builder has certainly opened my eyes to a lot of great things this industry has going for it. However, my favorite thing about it – hands down – is the passion. Whether it’s passion for covering the industry (as

Greg Jones
By Greg Jones

Having had the distinct opportunity to view this industry from my chair as editor of Engine Builder has certainly opened my eyes to a lot of great things this industry has going for it. However, my favorite thing about it – hands down – is the passion.

Whether it’s passion for covering the industry (as we do), or passion for manufacturing components (as so many of our partners do), or passion for creating horsepower and engines (as all of our readers do) – there’s certainly no lack of passion here. That all said, where I’ve seen the most passion for what our industry is all about is on the track. That’s where the proverbial rubber meets the road, and where the manufacturing, the engines, the cars, and the people all come together to earn a longed-for result.

Read Full Article

More Commentary Posts
PRI 2021: What a Show

First things first – Happy New Year to you all. I sincerely hope you got to be with friends and family during the holidays and that you all had a safe and fun end to 2021. We’ve now officially welcomed 2022, and as the holidays have quickly come and gone, as they always do, I

By Greg Jones
New Year’s Resolution

It’s crazy to think that 2021 is coming to a close. The days and weeks in a year always feel long, but the months and the year itself, absolutely fly by. It’s strange how that always is the case. There’s no stopping Father Time as they say! All we can do is forge ahead and

By Greg Jones
Not Your Father’s Engine Builder

I’ve actually lost track of how long it’s been since people started claiming print was dead. It’s been a while! Now, I understand the ‘print is dead’ claim might be different for newspapers than it is for magazines, but I can tell you this – the content landscape has certainly been shifting. Related Articles –

By Greg Jones
Experience Always Wins

Formula 1 racing often tells smaller stories within each individual race; the final stretches of the Russian Grand Prix proved in my eyes that experience always wins.

By Greg Jones

Other Posts

Protect Yourself as a Small Business

This month’s column is for all those folks in automotive performance with a small business, as well as those looking to get into this segment of the industry. Automotive performance is this gray area that comes with risks and rewards as well as customers who don’t know what they don’t know. If you’re not careful,

By Nate Bush
April Has Been Good to Me

Two years ago this month, I was promoted to editor of this fine publication and brand we call Engine Builder. After having been in the managing editor role for the five years prior, I got my chance to run the ship, as they say, when Doug Kaufman accepted an editorial director role within Babcox Media

By Greg Jones
The EPA and Hot Rod Culture

This is kind of a gray area for me. Obviously, being a passionate car guy who’s willing to throw turbochargers on anything and really enjoys performance, it creates this internal conflict between wanting to be somebody who participates in a greener view of the future and the well-being of my passion, career and industry. Related

By Nate Bush
One Year of COVID

As we all know, March 2021 marks a full year since the Coronavirus began altering what we used to know as ‘normal life.’ I don’t think any of us will forget March 2020 when we began hearing that this then foreign flu strain was starting to make the rounds in the U.S. I remember we

By Greg Jones