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3 Liter 16v Turbo build

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Old 01-18-2014, 07:07 PM
  #241  
Voith
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3L block has siamese cylinders and considerably higher cooling passage floor, so it should be a lot stronger.
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Old 01-19-2014, 05:48 AM
  #242  
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Originally Posted by Voith
3L block has siamese cylinders and considerably higher cooling passage floor, so it should be a lot stronger.
That is obvious. But does that affect the machining process?
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Old 01-19-2014, 07:43 AM
  #243  
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I dont think that it does. But that is if the block is not bent from standing too long on engine stand.
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Old 01-19-2014, 08:29 AM
  #244  
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Originally Posted by kont5u
Bas, it seems like no deck plate was used while machining the cylinders on your block? I'm going through the same process in the near future but my concern has mostly been related to the need of a costly deck plate while machining to prevent the cylinders from deforming after cylinder head has been installed. I have understood it should be used for machining a 2,5 l block, but not sure if it is necessary for the 3,0 l block machining.

Does anyone know if it should be used for dry sleeving a 3,0 l block? Anyone have experience doing that? I know at least Duke has dry sleeved his 3,0 l block, but any knowledge how that was carried out?
For the best results you should use a deck plate when honing the cylinders - its not needed for the rough machining process.
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Old 01-19-2014, 10:20 AM
  #245  
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Originally Posted by Voith
I dont think that it does. But that is if the block is not bent from standing too long on engine stand.
Damn, does that really happen?
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Old 01-19-2014, 10:38 AM
  #246  
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Originally Posted by theedge
Damn, does that really happen?
I don't know but I put a wooden prop under the unsupported end of the block on my stand.
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Old 01-19-2014, 11:37 AM
  #247  
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No, I was just joking. Block is made to fight against much stronger forces than that of gravitation, so it will not bend due to gravitation - ever.

Also, this guy on youtube that seems to really know his machining, does alusil procedure on MB block that is very similar to 44 block and is using no deck plate.

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Old 01-19-2014, 01:56 PM
  #248  
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Originally Posted by Chris White
For the best results you should use a deck plate when honing the cylinders - its not needed for the rough machining process.
Thanks Chris. I guess you have some blocks under your belt so you know know this by experience? It sure makes things easier if no deck plate is needed for rough machining. Then I would not necessary need to get a deck plate machined myself as there are some already made that I could borrow
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Old 01-19-2014, 05:20 PM
  #249  
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I would definitely trust that YouTube video over Chris White's opinion, NOT!
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Old 01-19-2014, 05:36 PM
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Originally Posted by URG8RB8
I would definitely trust that YouTube video over Chris White's opinion, NOT!
To be fair he's he's cleaning the cylinders up not resizing them.
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Old 01-19-2014, 05:38 PM
  #251  
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Originally Posted by blade7
To be fair he's he's cleaning the cylinders up not resizing them.
Point taken.
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Old 01-19-2014, 05:44 PM
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Originally Posted by URG8RB8
Point taken.
I'll be very happy if just lapping the cylinders is all my spare block needs, though I believe the cylinders tend to wear into an oval shape.
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Old 01-19-2014, 06:18 PM
  #253  
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Originally Posted by blade7
I'll be very happy if just lapping the cylinders is all my spare block needs, though I believe the cylinders tend to wear into an oval shape.
Easy to tell with a dial bore indicator/gauge.
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Old 01-19-2014, 06:32 PM
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Originally Posted by URG8RB8
Easy to tell with a dial bore indicator/gauge.
Yes I know how to measure the cylinders I just don't have access to the measuring equipment now. Local engine shop wants $50 to measure the cylinders, guess I'll have to cart it down there at some point.
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Old 01-19-2014, 06:39 PM
  #255  
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Originally Posted by blade7
Yes I know how to measure the cylinders I just don't have access to the measuring equipment now. Local engine shop wants $50 to measure the cylinders, guess I'll have to cart it down there at some point.
If I were home, I would ship you mine. It is one of those tools that collects dust most of the time. However, they are quite cheap on Amazon. You don't need a super expensive one.
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