Need torque specs for rocker housing. 2007 peterbilt c15. I need overhead sequence

Expert's Assistant chatimg
Customer: Need torque specs for rocker housing
JA: What's the make/model/year of your truck? Engine type?
Customer: 2007 peterbilt c15
JA: Are you fixing your truck yourself? What have you tried so far?
Customer: yes
JA: Anything else you want the Truck Mechanic to know before I connect you?
Customer: i need overhead sequence
Answered by wtolkson in 29 mins 2 years ago
imglogo
wtolkson
Auto Mechanic
logo

34,684 satisfied customers

Specialities include: Auto Body Technician, Heavy Equipment Repairs, Heavy Duty Engine Repairs, Brake and Transmission Repairs

Hi, I'm Wayne.

I'll be assisting you with this issue today.

Thank you for coming to Just Answer

Your Question is as important to us as it is to you.

I am sorry to hear you are having this issue.

I go offline between 3-4 Pm CST. M-F

Weekend 2-3 pm CST

Injector hold-down bolt: 37-foot pounds.

Rocker arm and Jake bolts and nuts:80 foot-pounds.

Inlet valves ... 0.38 ± 0.08 mm (0.015 ± 0.003 inch)
Exhaust valves ... 0.76 ± 0.08 mm (0.030 ± 0.003 inch)

Torque for the adjustment nuts ... 30 ± 7 N·m (22 ± 5 lb-ft)

(3) Rocker shaft

The diameter of a new rocker shaft ... 40.000 ± 0.010 mm (1.5748 ± 0.0004 inch)
Bore in the rocker arm for rocker shaft ... 40.065 ± 0.015 mm (1.5774 ± 0.0006 inch)
Maximum dimension for the bore of the rocker arm for the rocker arm shaft ... 40.193 mm (1.5824 inches)
Note: For engines that are equipped with variable valve actuators, refer to Specifications, "Variable valve Actuator" for information on the installation of the rocker arm assembly.

Two different studs are available for the variable valve actuator in the above-listed machines and engines. Both studs should follow the solution that is identified below.

When(###) ###-####Studs are installed or when(###) ###-####Studs are installed to ensure that the studs are tightened to 50 N·m (37 lb-ft). Tighten the studs to an additional 45°.

Note: For engines that are equipped with CAT Compression Brakes, refer to Specifications, "CAT Compression Brake" for the correct procedure on the installation of the rocker arm assembly.

(5) Location for checking the valve lash

Inlet valves ... 0.38 ± 0.08 mm (0.015 ± 0.003 inch)
Exhaust valves ... 0.76 ± 0.08 mm (0.030 ± 0.003 inch)
Note: Refer to Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust" for the correct procedure on setting the engine valve lash.

To adjust the unit injectors on cylinders 3, 5, and 6 use the following procedure:

Put the No. 1 piston at the top center position on the compression stroke. Refer to Testing and Adjusting, "Finding Top Center Position for No. 1 Piston".

Injector height gauge (4) is used to obtain a dimension of 78.0 ± 0.2 mm (3.07 ± 0.01 inch). The dimension is measured from the top of the unit injector to the machined ledge of the fuel injector body.

Turn unit injector adjustment screw (2) clockwise until the correct height is obtained.

Hold the adjustment screw in this position and tighten locknut (3) to a torque of 100 ± 10 N·m (74 ± 7 lb-ft).

To adjust the unit injectors on cylinders 1, 2, and 4, remove the timing bolt. Turn the flywheel by 360 degrees in the direction of engine rotation. The direction of engine rotation is counterclockwise, as the engine is viewed from the flywheel end. This will put the number 1 piston at the top center position on the exhaust stroke.

Repeat Steps 3 through 4.

Remove the timing bolt from the flywheel after all the unit injector adjustments have been made. Reinstall the valve mechanism cover.

tighten the studs at Locations (3), (4), and (5) to a torque of 50 ± 5 N·m (37 ± 4 lb-ft). Tighten the studs for an additional 45 ± 5 degrees. Tighten the stud at Location (2) to a torque of 65 ± 10 N·m (48 ± 7 lb-ft). Refer to Specifications for more information.

Install variable valve actuator (5).

Install bolt (3). Install nuts (4).

Injector hold-down bolt: 37 foot-pounds.

Rocker arm and Jake bolts and nuts:80 foot-pounds.

I hope this helps you.

Wayne

Morning,

If you have any follow up questions, please let me know using the reply button. If you are satisfied with my help, please let me know so we can complete your question.

Wayne

Read less
unlike
1 Likes
logoBack
logologo
wtolkson
logo
logo
34,684 satisfied customers
logo
Auto Mechanic
imglogo
wtolkson
Auto Mechanic
logo

34,684 satisfied customers

Ellen

Ellen

Licensed mechanics

31,131 satisfied customers

Pearl avatar
Steve Pearl, Mechanic's Assistant
14 Mechanics are online right now.
Related Car Questions
Could I get the procedure for front gear housing seal and
6.6.2021
img
Nich1019
Diesel Technician
117 Satisfied Customers
I have an oil leaks coming from the top of the engine,
4.23.2021
img
Nich1019
Diesel Technician
117 Satisfied Customers
Need to know the torque on the rocker arm assembly hold down
12.8.2020
img
Nich1019
Diesel Technician
117 Satisfied Customers
Cat C15 SDP# 21414 IN kenworth T660. Overhead camshaft went
11.23.2019
img
Daniel Wilson
Car Specialist
6,648 Satisfied Customers
Tourque specs to replace injector on 2007 c15 cat. C15
7.19.2019
img
Cat Man
Cat Engine Expert
5,355 Satisfied Customers
How it works
logoAsk for help, 24/7
Ask for help, 24/7
Members enjoy round-the-clock access to 12,000+ verified Experts, including doctors, lawyers, tech support, mechanics, vets, home repair pros, more.
logoExpert will respond in minutes
Expert will respond in minutes
After you reach out, we match you with an Expert who specializes in your situation. Talk, text, chat, whichever you prefer.
logoSave time & money
Save time & money
No scheduling hassles, missing time from work, or expensive consults.
A JustAnswer membership can save you significant time and money each month.
Sarahesq and 87 other Automotive Mechanics are ready to help you.
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.
Last Updated: 12-20-22
Why you’ll love JustAnswer
JustAnswer is the best way to get expertise on-demand from doctors, lawyers, vets, mechanics and more. Since 2003, we’ve helped more than 9 million people in 196 countries and have an A+ rating with BBB and a 9.6/10 rating with TrustPilot.
Highly rated, verified Experts
We pride ourselves in our 8-step verification process including license and credential checks. Vetted by us and rated by customers, like you.
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
Web sites like justanswer.com/legal ...leave nothing to chance.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
4.8

JustAnswerHomeAboutCareersPressPartner ProgramBlogCountries
MembersHow it worksLoginRegisterCategories
ExpertsMeet the ExpertsExpert qualityBecome an Expert
SupportHelp CenterContact Us

© 2003-2023 JustAnswer LLC. All rights reserved.

Privacy PolicyTerms of servicesContact usSitemap
DMCA.com Protection Status