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-   -   Need opinion on used head (https://honda-tech.com/forums/engine-machining-assembly-164/need-opinion-used-head-3327889/)

butterbeer2fd 09-24-2018 01:11 PM

Need opinion on used head
 
I'm trying to purchase a P72 head and the owner sent me some photos of the head and needed some advice.

Owner said it's the full head (cam caps everything etc.) but my only concern is the exhaust side looks super black, is that a normal amount of debris and blackness and is it removable?

Also picture #2 I circled in red something that looks weird, I think that should be a hole but not sure what it's used for...is it possible for a broken thread to be in there? From what I was researching it looks like it's for coolant so not sure why it looks plugged in the photo.

Should I be asking any other questions or asking for certain angles of pictures for the head?

Any advice is appreciated.

https://i.postimg.cc/0rqTb0gZ/image.png https://i.postimg.cc/62V1dFsc/image.png https://i.postimg.cc/BjyysxcT/image.png https://i.postimg.cc/MMJFfqLX/image.png https://i.postimg.cc/Z9dQqCV1/image.png

turboLScrx 09-24-2018 03:52 PM

Re: Need opinion on used head
 

Originally Posted by butterbeer2fd (Post 51737067)
I'm trying to purchase a P72 head and the owner sent me some photos of the head and needed some advice.

Owner said it's the full head (cam caps everything etc.) but my only concern is the exhaust side looks super black, is that a normal amount of debris and blackness and is it removable?

Also picture #2 I circled in red something that looks weird, I think that should be a hole but not sure what it's used for...is it possible for a broken thread to be in there? From what I was researching it looks like it's for coolant so not sure why it looks plugged in the photo.

Should I be asking any other questions or asking for certain angles of pictures for the head?

Any advice is appreciated.

https://i.postimg.cc/0rqTb0gZ/image.png https://i.postimg.cc/62V1dFsc/image.png https://i.postimg.cc/BjyysxcT/image.png https://i.postimg.cc/MMJFfqLX/image.png https://i.postimg.cc/Z9dQqCV1/image.png

pictures was kinda small and I can’t see things very good, but it looks like the exhaust gasket was leaking which is why so much black around the exhaust and it was probably running rich (better than lean) but a photo of the valves would be more telling about how the engine was running when the head was removed.

Cupajoe 09-27-2018 06:07 AM

Re: Need opinion on used head
 
You should just plan on refreshing the head upon arrival. Leaking exhaust at header burns valves out.


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