TESKID Block - Water Pump Cavity Concern

[Bigdaddy1965]

Good Morning Fellow Motorheads!


Quick question here, I have been looking at some TESKID blocks recently and have seen a couple that had some unusual looking wear in the Water-Pump cavity. Please see photos, can anyone comment if they have seen this and is determinantal to block?


Thank you in advance for your input!

 

[Wings65288]

Are you talking about that black thing in the center? Isn't that suppose to pop out?

 

[Bigdaddy1965]

Are you talking about that black thing in the center? Isn't that supposed to pop out?

Good morning.... I am referring to what would be the water channel, if you enlarge the picture slightly you will see the machined/polished area and them some areas of wear/delaminating.

 

[shurur]

Good morning.... I am referring to what would be the water channel, if you enlarge the picture slightly you will see the machined/polished area and them some areas of wear/delaminating.

You are talking about where the seal mates?
It looks pitted and no longer shiny?

I wonder whether that section was ever polished.
I will look for Teksid or even WAP block pics for you.

you could post this up on the na svt facebook page as well or maybe MMR.

 

[Bigdaddy1965]

You are talking about where the seal mates?
It looks pitted and no longer shiny?

I wonder whether that section was ever polished.
I will look for Teksid or even WAP block pics for you.

you could post this up on the na svt facebook page as well or maybe MMR.

I have marked-up the attached picture to clarify the area of concern.

And thank you for the suggestion, I will post in those other areas/sites as well.

 

[Blkkbgt]

Good Morning Fellow Motorheads!


Quick question here, I have been looking at some TESKID blocks recently and have seen a couple that had some unusual looking wear in the Water-Pump cavity. Please see photos, can anyone comment if they have seen this and is determinantal to block?


Thank you in advance for your input!
View attachment 1621316 View attachment 1621317

I have marked-up the attached picture to clarify the area of concern.

And thank you for the suggestion, I will post in those other areas/sites as well.

What you are seeing is not "wear" or any form of "delamination" as you put it. What you are seeing is a casting void in the block and extremely common on Teksids and even WAP block. After the blocks are cast the bolt holes are drilled and threaded and the rest of the block is machined. During this process the bore for the water pump is cut. When this bore is cut voids in the casting in that particular area are uncovered. This is what you are seeing, voids. This is why if you look closely you'll notice the area looks rough cast. If you look at 10 blocks you will also notice the the voids are not the same size or in the same location. I can also tell you that you will have a hard time finding a block that does not display similar voids. Lastly this is NOT a flaw in the block and in no way shape or form reduces the blocks capability.

 

[SID297]

Looks like the result of cavitation to me.


Sent from my iPhone using svtperformance.com

 

[Bigdaddy1965]

What you are seeing is not "wear" or any form of "delamination" as you put it. What you are seeing is a casting void in the block and extremely common on Teksids and even WAP block. After the blocks are cast the bolt holes are drilled and threaded and the rest of the block is machined. During this process the bore for the water pump is cut. When this bore is cut voids in the casting in that particular area are uncovered. This is what you are seeing, voids. This is why if you look closely you'll notice the area looks rough cast. If you look at 10 blocks you will also notice the the voids are not the same size or in the same location. I can also tell you that you will have a hard time finding a block that does not display similar voids. Lastly this is NOT a flaw in the block and in no way shape or form reduces the blocks capability.

Thank you very much for your input and this is great news if that is the case! I have noticed and understood the "rough" castings look at each of the water inlets were just that, "rough" & "Unfinished" areas of the casting. The area
that I had a concern about is an area of wear or excessive wear. The area in the smaller circle may be the best picture, you can see there is a polished or nicely worn area and then the area of wear.

 

[Blkkbgt]

Looks like the result of cavitation to me.


Sent from my iPhone using svtperformance.com

Cavitation damage is almost always confined to impeller blades of pumps and turbines due to where the bubbles are usually created and where they collapse. Additionally cavitation damage like what you perceive here would be caused over a very long time.

 

[Blkkbgt]

Thank you very much for your input and this is great news if that is the case! I have noticed and understood the "rough" castings look at each of the water inlets were just that, "rough" & "Unfinished" areas of the casting. The area
that I had a concern about is an area of wear or excessive wear. The area in the smaller circle may be the best picture, you can see there is a polished or nicely worn area and then the area of wear.

Where are you getting the idea that this area is "wearing"? How do you propose that this "wear" is being caused?

 

[Black02GT]

Good Morning Fellow Motorheads!


Quick question here, I have been looking at some TESKID blocks recently and have seen a couple that had some unusual looking wear in the Water-Pump cavity. Please see photos, can anyone comment if they have seen this and is determinantal to block?


Thank you in advance for your input!
View attachment 1621316 View attachment 1621317

Not the cheapest but @racebronco2 sells Teksid blocks. Gotten 2 over the years from him. Last one was a lil dirty but cleaned up and was fine.

 

[04MystiCobra]

Heres a WAP block shot.

 

[SID297]

Cavitation damage is almost always confined to impeller blades of pumps and turbines due to where the bubbles are usually created and where they collapse. Additionally cavitation damage like what you perceive here would be caused over a very long time.

Check this vid from Ford:

 

[Blkkbgt]

Check this vid from Ford:

I stand corrected. I always thought what I was seeing on Teksids and some WAP blocks was simply casting voids exposed by the machining process. This also means that just about all the Teksids I've seen possibly have cavitation damage with is concerning in itself.

 

[SID297]

I stand corrected. I always thought what I was seeing on Teksids and some WAP blocks was simply casting voids exposed by the machining process. This also means that just about all the Teksids I've seen possibly have cavitation damage with is concerning in itself.

Some engines are more prone to it than others. The 6.4 is a nightmare.