Engine miss rocker arm was jumped off

1992 MERCURY MARQUIS
160,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
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WESTRUCK
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When I start the car there is clicking noise. Then it would go away . One day the car had a miss. Number 6 cylinder had the miss. I took off the valve cover. Found rocker arm was jump off. Is it okay to put one rocker arm and lifter in? The lobe on cam looks good.
Jan 2, 2020 at 2:52 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
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Good evening,

Yes, but the reason it cam off needs to be determined. It may have been the lifter but it may also be a broken valve spring as well.

I attached the procedure below with the required tools needed.

Roy
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Jan 2, 2020 at 3:09 PM
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WESTRUCK
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Thank you Roy. I did not think about the valve spring. But I will check it.
Jan 2, 2020 at 3:18 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
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  • ASE Certified Mechanic
You are welcome.

always gad to help.

Roy
Jan 2, 2020 at 4:20 PM
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WESTRUCK
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Is it okay to change one rocker arm,one valve spring and one lifter?
Jan 2, 2020 at 5:07 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
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  • ASE Certified Mechanic
Yes, it is. You can replace just the broken parts.

Roy
Jan 2, 2020 at 5:12 PM
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WESTRUCK
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Thank you for the info. I will do that.
Jan 2, 2020 at 5:16 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
You are welcome.

Always glad to help.

Roy
Jan 2, 2020 at 5:18 PM
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