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How do I find flywheel timing marks for checking injector…

Customer Question
How do I find...

How do I find flywheel timing marks for checking injector pump timing on Massey Ferguson 50B backhoe (Perkins A4.212 engine)

Mechanic's Assistant: What is the complete model and serial number of your machine?

That I would love to know - old, 2nd hand, has generator

Mechanic's Assistant: Are you fixing this yourself? What have you tried so far?

Re-built injector pump, worked well for several hours then stopped. Allen head bolt holding pump drive plate that connects to timing gear came loose. Could timing gear lose its correct position?

Mechanic's Assistant: Anything else you want the equipment mechanic to know before I connect you?

Can't find any inspection port for flywheel timing marks. Have a manual but it doesn't say

Submitted: 11 months ago.Category: Construction and Road Equipment
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Answered in 3 hours by:
9/24/2017
Mechanic: Dan, Technician replied 11 months ago
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 6,906
Experience: 17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.
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Hi my name is***** with me while I review your information.

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Mechanic: Dan, Technician replied 11 months ago

Click on this link for the detailed instructions.

Pump timing.

Ask Your Own Construction and Road Equipment Question
Mechanic: Dan, Technician replied 11 months ago
Ask Your Own Construction and Road Equipment Question
Mechanic: Dan, Technician replied 11 months ago

There are no flywheel timing marks. Valve overlap, front pulley and dial indicating engine position with the valve on the piston. Requires special tooling as in the info I posted.

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Mechanic: Dan, Technician replied 11 months ago

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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.

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