This is a Pic of before lapping, then after about 1 minute of lap with purple tube permatex valve grinding compound, and a final lapping on a non-pitted valve.
Half my valves have "spots" as I like to call them. Makes me feel better than saying "pits".
Maybe these are toast to the point I've not come across this amount of toastness....
Verdict?
Pics.. are my valves bad?
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- Noob
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- Vehicle Year: 1996
- Vehicle Make: Jeep
- Vehicle Model: Cherokee
Pics.. are my valves bad?
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'96 Sport 4 Dr 4.0 AW4 231 D30 8.25, 4.5", 5100's, A/A SYE, '99 Intake, 703's, header, 2.5" FM 40, 31" KO2's. DD
'01 Camaro SS modded
(77k mi Sept. 2024)
'18 Durango Black Top: Family Ride
Retired Air Force
'01 Camaro SS modded

'18 Durango Black Top: Family Ride
Retired Air Force

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- Noob
- Posts: 13
- Joined: October 16th, 2024, 2:51 pm
- Vehicle Year: 1996
- Vehicle Make: Jeep
- Vehicle Model: Cherokee
Re: Pics.. are my valves bad?
Wow .... I didn't realize how much my old flip phone camera could really bring out the texture in my photos. I call that either bad, or a shart ton of "buildup deposit crap" that needs to come off.
'96 Sport 4 Dr 4.0 AW4 231 D30 8.25, 4.5", 5100's, A/A SYE, '99 Intake, 703's, header, 2.5" FM 40, 31" KO2's. DD
'01 Camaro SS modded
(77k mi Sept. 2024)
'18 Durango Black Top: Family Ride
Retired Air Force
'01 Camaro SS modded

'18 Durango Black Top: Family Ride
Retired Air Force

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- I think I'll order a "tab"
- Posts: 48
- Joined: October 14th, 2022, 3:34 pm
- Stroker Displacement: 4.6
- Vehicle Year: 1995
- Vehicle Make: Jeep
- Vehicle Model: ZJ
- Location: Oklahoma
- Contact:
Re: Pics.. are my valves bad?
If you're doing a budget build, get a machine shop to reface them. There will still be visible pits, but you may get sufficient sealing. Of course the right answer is to replace them. Either way, I suggest having a machine shop reface the seats in the head for proper seal.
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- Noob
- Posts: 13
- Joined: October 16th, 2024, 2:51 pm
- Vehicle Year: 1996
- Vehicle Make: Jeep
- Vehicle Model: Cherokee
Re: Pics.. are my valves bad?
Thanks Mike. I appreciate the info
'96 Sport 4 Dr 4.0 AW4 231 D30 8.25, 4.5", 5100's, A/A SYE, '99 Intake, 703's, header, 2.5" FM 40, 31" KO2's. DD
'01 Camaro SS modded
(77k mi Sept. 2024)
'18 Durango Black Top: Family Ride
Retired Air Force
'01 Camaro SS modded

'18 Durango Black Top: Family Ride
Retired Air Force

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