[DIY] How To Hone Engine Cylinders In Your Garage Using a Dingleberry Hone [BMW N52 Rebuild Part 7]
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- Опубліковано 24 сер 2024
- Most of you here honing a cast iron block can use this dingleberry hone without issues. If you are rebuilding an alusil engine listed here: [en.wikipedia.o...] You need to use the correct hone for this block. I didn't know this at the time and used a dingleberry hone instead of something like (see link below) with a special compound. I suggest you measure the bores of the block for out of round/taper and if they are more or less straight, you just leave the cylinders the way they are or use the special hone. It should produce a mirror like finish instead of a crosshatching pattern.
amtuned.com/pr...
goodson.com/pr...
Massive Thank you to @Vee Tech for sending me this manual on honing alusil engines. Please read! cdn2.ms-motors...
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Watch Part 8 here: How To Check/Measure Piston Ring Gap Clearance & Assemble Piston Rings [BMW N52 Rebuild Part 8]
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![Real Reason Why The BMW N52 Engine Burns Oil... Worn Piston Rings! [BMW N52 Rebuild Part 6]](http://i.ytimg.com/vi/xOfYVfCijsQ/mqdefault.jpg)
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How’s the engine rebuild going ?
It's all finished with 30k on the clock. You can check out my 20k update videk. Runs good but smaller stuff (vanos/disa seals) are falling apart for some reason. The rubber on these engines are made to fail.
As far as I’m aware you can’t straight hone this cylinders, they need a special scuff pad hone with a special paste that has the abrasives for alusil cylinders.
Can you send me a link on my Instagram of something that would work for this engine?
That’s the issue with the n52, it doesn’t have a lot of options for a home rebuild like the n54.
You’d have to find a machine shop that can hone alusil cylinders. An Audi or Chevy specialized shop should be able to do it.
@@buildanddrive it's to late but... Here is the compound goodson.com/products/an-30-silicon-compound and the pads amtuned.com/products/amtuned-felt-hone-for-alusil-engines. Some times things are more complicated than we expect....
@@krkoychev totally forgot about the website with the felt pads !
@@veetech6786 I think a small scuff like I did to reset the rings didn't hurt anything. Its not like the dingelberries are under serious tension for 'boring/cutting'. I researched this for a quite some time and didn't see anything in the bmw manuals about how to do this because its a special magnesium/aluminum alloy block. There were mentions of 'boring' the block to the larger diameter pistons but if they can take off an extra 0.25mm for the larger pistons, I assumed a quick hone/scuff like this should be fine if the bores were straight. If anyone has further info on how to 'hone' this block for a quick rebuild, put it in the comments and add links for further reading! I also would like to know the correct procedure as these videos were supposed to help others with their rebuild! I don't want to spread mis-information. Thanks!
in the case of factory honed cylinders, even if the cylinder walls are wear out, you can still see the factory cross-hatch on the non loaded sides of the cylinders ...
you have "coated" cylinder walls, you are not suppose to hone them at all ... you have no idea of what are you doing
Read the description and comments. Thanks.
@@buildanddrive Description and comments cannot replace technical facts. As shown in your video, the cylinder walls were almost perfect after disassembly, the coating is much more durable compare with the traditional honing. You just ruin them ...
@@bogdansovaiala7290 Car is back together and running with over 15,000kms on the new engine but thanks for your comment
@@buildanddrive Congrats! many more ahead!
@@buildanddrive niceee fresh n52
oh oh my heart is brocken... :-(
😂😂😂
Engine is fine. Great power. Runs like a champ. The boring I did to the block didn't hurt anything that I can feel
Go
Where?