AfterMarketNews Auto Care Pro AutoProJobs Auto-Video.com Brake&Frontend BodyShopBusiness Counterman EngineBuilder Fleet Equipment ImportCar Motorcycle & Powersports News Servicio Automotriz Shop Owner Tire Review Tech Shop Tomorrow's Tech Underhood Service

Second-rate parts mean second-rate results

When it comes to diagnosing a problem, one of the biggest mistakes is thinking that the problem is gone after you’ve installed a new part. I’ve had vehicles brought in countless times with the same old story attached to them. The customer will say:...

Read more...

GearWrench Launches Street Team, a New Mobile Driver Program

GearWrench, a premier hand tool brand from Apex Tool Group, has announced Street Team, a new program that gives independent mobile distributors the support of an established tool brand without the restrictions of a franchise. "Response to the program...

Read more...

AUTO 7 Named Approved Vendor For Automotive Parts Associates

Steven Kruss, president of Auto 7, which supplies Korean-made, OEM-quality automotive parts to distributors across North America, announced that Auto 7 has been named an approved vendor of Automotive Parts Associates (APA), one of the nation’s...

Read more...

Internal Engine Oil Consumption Diagnostics

Due to the variables in engine design and ­operating conditions, internal engine oil ­consumption complaints are often the most difficult to solve. In some cases, oil consumption might be more severe under low-speed operation, in other cases, high-speed...

Read more...

Hyundai Fuel System, Emissions Diagnostics

Hyundai has done a good job of improving its ­offerings over the years from both an aesthetic and mechanical viewpoint. Complemented by a strong warranty and good value, the carmaker has been able to increase its market share year over year. If you aren’t...

Read more...

Curing Volvo Manual Transmission Rattle

In an effort to increase fuel efficiency, today’s engines produce more torque so they can be ­driven at extremely low rpm. ­Reduced viscosity engine and gearbox oils, less vehicle weight and improved aerodynamics also contribute to better fuel economy....

Read more...

Servicing The Electronically Adjustable Shocks Of Full-Sized GM Trucks

Since the 2000 model year, GM has offered electronically adjustable suspension as an option on Chevy, Cadillac and GMC full-size trucks. The system actuates the valving in the shocks to control ­suspension position and body attitude. The electronic...

Read more...

Diagnosing Clutch Assembly Noises

Noise can resonate from many areas of a ­vehicle’s driveline. There are several types of noises associated with the clutch assembly. The release bearing is most often blamed for being the cause of noise when, in many cases, it is not the release...

Read more...

Making Sense Of Steering Angle Sensor Input And Data

Measuring the­ ­position angle, rate of turn and force of the steering wheel is critical for Electronic Stability Control (ESC) systems. Scan tools call these Steering Angle Sensors (SAS) and typically display the information in degrees. The SAS...

Read more...

Talk To All Available Modules With Autel's MaxiDiag Elite MD802

Derived from Autel’s Professional Series tool, the MaxiDAS DS708, the MaxiDiag Elite MD802 enables the user to not only get into the OE enhanced OBD II system with mode 6 access and live data graphing, but it also allows a technician to scan the...

Read more...

Reflashing & Reprogramming Tools

In the first half of 2014, NHTSA has issued more than 15 recalls where the fix was to reflash a module on a vehicle. In the same time frame, more than 100 TSBs have also been issued where the solution is to reflash a module. These recalls and TSBs...

Read more...

Pulling Codes: An Advanced Misfire Story The Story of P0301

This article will document code P0301 — Misfire Activity on Cylinder No. 1 — a code many of you have run into, but sometimes we have case studies that are worthy of mention. Our subject vehicle is a 2007 Mercury Mountaineer. The vehicle has...

Read more...

Home Engine Tech Tip: Honda’s V6 Engine Leaks Oil from Front/Middle/Rear

Print Print Email Email

Applies To: All 1998-2003 Accord V6, 1999-2003 Odyssey and 2003 Pilot models.

figure 1If oil is leaking from the front, middle or rear of one of the above engines, it may be due to the cast aluminum engine block may be porous in spots. Depending on the location of the leak, seal it with JB Weld or 3-Bond-coated sealing bolts.

Note: For some problems, the VTEC System Test Tool (P/N 07AAJ-PNAA101) can be used to pressure-check the engine block for oil leaks. A similar tool was first used in 1992 to check the rocker arms on VTEC engines (see Service Bulletin 91-038, VTEC Inspection Tool).

If your shop does not have a VTEC System Test Tool, order it from your parts center. The tool consists of a gauge with regulator, a hose and a coupler.

If your shop does not have an adapter hose (P/N AT77), order it from the Honda Tool and Equipment Program. See Figure 1.

Parts Information
Timing Belt Adjuster Pulley Bolt (except 2003 Accord V6): P/N 14551-P8A-999
Timing Belt Adjuster Pulley Bolt (2003 Accord V6 only): P/N 14551-RCA-A01
Engine Side Mount Bracket Bolt: P/N 95801-10085-99
Transmission Mounting Bolt (2 required):
P/N 95701-12070-99

figure 2Repair Procedure
Most engine oil leaks can be seen when you disassemble the suspected area. But, if you want to pinpoint the exact location of the leak, use a powdered leak detector (best for suspected bolt hole leaks) or do a pressure-test with the VTEC System Test Tool (best for suspected block porosity).

Leak Testing With a Powdered Leak Detector (P/N 20165)
1. Clean off residual oil and grease from the engine with engine degreaser.

2. Disassemble the engine enough to expose the area of the leak.

3. Spray powdered leak detector on the area.

4. Reassemble the engine, start it and run it for about 5 minutes.

5. Shut off the engine and inspect the leak area. Once you find the leak, go to Confirming the Leak, and use the chart to determine whether to follow Repair Procedure A or Repair Procedure B.

Leak Testing with the VTEC System Test Tool
1. Disconnect the breather hose connecting the front head cover to the air inlet tube. See Figure 2.

2. Remove the oil pressure switch from the oil pump.

3. Screw the adapter of the VTEC tool into the oil pressure switch hole.

4. Connect the VTEC tool to shop air regulated to no more than 40 psi.

5. Brush soapy water on the suspected porous area (best for vertical surfaces) or fill the area with soapy water (best for a suspected leak in the engine valley).

If the area bubbles, you’ve found the leak. Go to Confirming the Leak, and use the chart to determine whether to follow Repair Procedure A or Repair Procedure B.

figure 3Note: To fill an engine valley section with soapy water, plug the drain hole in the valley with a piece of tubing (P/N 36285-P8A-A00) around a 6 x 15 mm bolt. See Figure 3.

6. After you pressure-test the block and make the needed repairs, pull fuse No. 11 (15A) from the ­driver’s under-dash fuse/relay box (to disable the ignition system), then crank the engine for 10 to 15 seconds; this ensures the engine bearings are lubricated before you start the engine. After you crank the engine, reinstall the fuse.

7. If you can’t find the leak with this method, use the powdered leak detector.

Confirming the Leak
The engine may leak at any of six known areas. See Figure 4. Confirm the leak with this chart, then repair it using Repair Procedure A or B.

Repair Procedure A
1. Remove and discard the original bolt(s).

2. Install the appropriate coated bolt(s) (see Parts Information), and torque them as indicated:
– Timing Belt Adjuster Pulley Bolt: 44 Nm (33 lb.-ft.)
– Engine Side Mount Bracket Bolt: 44 Nm (33 lb.-ft.)
– Transmission Mounting Bolts: 73 Nm (54 lb.-ft.)

Figure 4 3. Reassemble the engine, start it and let it run for 20 minutes. Then shut it off and confirm that the leak is gone.

Repair Procedure B
1. Thoroughly clean the area to be patched. This is vital for good bonding of the adhesive.

2. Follow the manufacturer’s directions for preparing the JB Weld (P/N 8265-S) adhesive.

3. Spread a generous amount of adhesive on the leak area and 1-2” surrounding it.

4. Reassemble the engine, making sure not to disturb the adhesive.

5. Let the adhesive set for at least 24 hours before you start the engine. This is vital because engine oil pressure will try to push through the repair.

6. If you pressure-tested the block, pull fuse No. 11 from the driver’s under-dash fuse/relay box to disable the ignition system. Then crank the engine for 10 to 15 seconds; this ensures that the engine bearings are lubricated before you start the engine. After you crank the engine, reinstall the fuse.

7. Start the engine and let it run for 20 minutes. Then shut it off and confirm that the leak is gone.

 

The following two tabs change content below.
Advertisement
Advertisement
Advertisement
Advertisement
Latest articles from our other sites:

Raybestos Launches Camaro Sweepstakes Promotion

Raybestos brand brakes announces the Raybestos Camaro Sweepstakes promotion, where the lucky grand prize winner will drive away in a one-of-a-kind Raybestos 1971 Chevrolet Camaro RS “G-Machine,” featuring...More

SYLVANIA Automotive Lighting Signs As Official Automotive Lighting Sponsor Of The Red Bull Global Rallycross Series

SYLVANIA Automotive Lighting has signed on to the 2014 Red Bull Global Rallycross season as the “Official Automotive Lighting Sponsor.” This sponsorship marks the third year SYLVANIA Automotive Lighting...More

Internal Engine Oil Consumption Diagnostics

Due to the variables in engine design and ­operating conditions, internal engine oil ­consumption complaints are often the most difficult to solve. In some cases, oil consumption might be more severe...More

Hyundai Fuel System, Emissions Diagnostics

Hyundai has done a good job of improving its ­offerings over the years from both an aesthetic and mechanical viewpoint. Complemented by a strong warranty and good value, the carmaker has been able to...More

Avoid the ‘warped rotors’ trap, find true pulsation cause

The expression “warped rotors” still seems prevalent in the brake service community. According to common lore, a warped rotor is the usual cause for pedal pulsation or vibration in the car or steering...More

Getting An Accurate Toyota Tire Pressure

Ambient temperature changes can dramatically alter tire pressure, which could cause a tire pressure monitoring system (TPMS) warning light to illuminate. The TPMS must be initialized based on the tire’s...More

Ernst Offers Socket Boss Universal Twist Lock Socket Tray

Versatility is a must for organizing any socket set. Capitalize on maximum configuration possibilities with the new Universal Twist-Lock Socket Tray from Ernst. Individual rails can be removed or switched...More

Ranger Introduces New Automatic Leverless Tire Changer

Ranger Products, a division of BendPak Inc., is bringing another new tire changer to market. Its latest R80DTXF tire changer features an automatic bead lifter, variable speed turntable and bilateral bead...More