Nissan SR-20 DET Head Resurface
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Uploader Comments (fiatnutz)
Top Comments
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Can't believe someone tried to clean it with a disc sander...
2 years ago 13
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It shaves of any uneveness or warpage. Therefore the the headgasket can provide a "perfect" seal across the head.
3 years ago 5
All Comments (28)
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Are you talking about a process to metallise aluminium valve seats?
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nice is very good
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Great video.
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Also where did you ind your specifcations and tolerances for the head. i have been looking and havent been able to find much
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Kind of looks to me that both the head and the block were mounted wrong a little on the resurfacing machine. Of course that still doesn't account for the clearly defined marks and surface issues that were present.
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Hello Mr Edwards!
I was wondering, what was the Ra before resurfacing the head? What is the Ra if someone uses a scotch brite to clean the old head gasket material?
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im going to be building an SR20DET head im my college engine machining class. i have a question if you dont mind.
1. does the head have aluminum valve seats? or are they of another material?
burkeeluvshiscivic 1 year ago
@burkeeluvshiscivic - Laser clad valve seats are not used in this engine like some other cars, it has iron metal seats.
fiatnutz 1 year ago
@burkeeluvshiscivic
It would be suicide to make a turbo engine with aluminium valve seats- the exhaust temperature would scorch them.
douro20 10 months ago
@douro20 - Do you know anything about laser clad valve seats? Toyota, Suzuki, and several other manufacturers are using them in some of their engine and they hold up quite well - where did you get your information? Or, is this from personal experience?
fiatnutz 10 months ago