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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Dimple in head surface

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Old Oct 6, 2024 | 06:56 PM
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Renegade15's Avatar
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Dimple in head surface

Upon cleaning up my heads to get them ready to reinstall, I have found a dimple in the surface about 30 degrees from where the head gasket failure is. It can barely be felt with your fingernail and I was wondering if youall thought it warranted getting the head machined down, or even completely replaced? Thanks!



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Old Oct 6, 2024 | 08:38 PM
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I wouldn't run it with a ding you can feel right at the fire ring of the head gasket. I'd take it to a machine shop and have it checked. You may get away with just getting it surfaced. If it's high mileage and a solid usable OEM head, it would be best to get it checked out for any other work it may need to run another life. Good luck with your repair and let us know what you decide. Dead end threads suck.
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Old Oct 10, 2024 | 10:12 AM
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I decided to take them to a machine shop for a good cleanup and resurface. I couldn’t find anyone in the area (Wilmington, nc) that was less than about $1k to do a full valve job and head rebuild, so I am going to go with a good cleanup and put it all back together. It ran great even after I discovered the blown head gasket so I feel like this is an ok route for now. This isn’t a daily driver or high performance off road rig so I just really want to get it back in the road for a decent investment and keep enjoying it. I’ll post some pics when I get the heads back.
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Old Oct 11, 2024 | 07:21 PM
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Got my heads back this afternoon, they look great. The machinist said they weren’t warped at all, so that’s good! He said apart from that dimple, it could have just been cleaned up and bolted back on! But I’ll feel better with a fresh surface on them!

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Old Oct 19, 2024 | 06:16 AM
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Originally Posted by Renegade15
Got my heads back this afternoon, they look great. The machinist said they weren’t warped at all, so that’s good! He said apart from that dimple, it could have just been cleaned up and bolted back on! But I’ll feel better with a fresh surface on them!
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It looks clean.

Last edited by LincolnWalker; Oct 25, 2024 at 10:23 PM.
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Old Oct 19, 2024 | 07:23 PM
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So far so good, hope to be running this week, the injector kit is the only thing I’m waiting for and can get everything back together.
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Old Oct 20, 2024 | 08:06 AM
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Always best to resurface and have it done right, glad you went that route. Peace of mind is well worth it.
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