Duramax Diesels Forum Truck of the Week
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Old 12-10-2017, 01:39 PM
USMC_53 USMC_53 is offline
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Default Metal shaving in cylinder head!!

Friday evening I went to pick up my heads from the machine shop, had them deck both of my heads, so here I am, itís Sunday Iím about to start putting my heads back on the block and I go to look at my heads and i start to notice there are metal shavings everywhere inside the cooling passages, and just about everywhere else on the heads! The machine shop is only open Monday-Friday or I would have called already, is there any alternative to cleaning them myself? Or do the valve springs and valve stems have to come off? My buddy told me I should just clean them with fuel but wanted to see if anyone has a better idea! Iím still gonna call the shop up tomorrow and See why they didnít clean them?
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Old 12-10-2017, 01:53 PM
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Sounds like you used an extremely crappy shop. Those should've been completely cleaned out before valves/springs were ever re-installed.

I would hold off, take the heads back to the shop Monday and raise hell.
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Old 12-10-2017, 02:06 PM
USMC_53 USMC_53 is offline
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Yea thatís what I plan on doing I guess! I was really planning on getting my heads put back on today 😩
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Old 12-10-2017, 02:11 PM
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Unfortunately it's not all that uncommon for machine shops to send Parts back not cleaned up. A lot of times they will even put tags on the parts that say not clean enough for re-assembly. I agree it's shitty, and wouldn't use that machine shop again. However, if you want to assemble the engine today I see no reason why you can clean these up today and continue assembly.


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Old 12-10-2017, 03:10 PM
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Ok well if I clean them myself whatís the safest way of doing so? Can submerge the whole head in a tub of fuel? Or with the springs and valve stems have to be removed?
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Old 12-10-2017, 03:13 PM
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I would use brake parts cleaner and compressed air.


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Big thanks to everyone who helps me.

Best 1/8th, 7.29, 98.6MPH (Street tires, fuel only, single Journal bearing GT42 charger) (2010)

Best 1/8th, 6.93, 104.24MPH (Street tires, fuel only, single HX60 turbo) (2016)

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Old 12-10-2017, 03:51 PM
USMC_53 USMC_53 is offline
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So spraying parts cleaner everywhere wonít hurt anything right?
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Old 12-10-2017, 05:45 PM
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Nope.


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2010 ECI Diesel Truck Points Champion
2011 ECI Diesel Truck Points Champion
2012 ECI Diesel Truck Points Champion

Big thanks to everyone who helps me.

Best 1/8th, 7.29, 98.6MPH (Street tires, fuel only, single Journal bearing GT42 charger) (2010)

Best 1/8th, 6.93, 104.24MPH (Street tires, fuel only, single HX60 turbo) (2016)

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Old 12-10-2017, 05:56 PM
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Just keep it off your valve stem seals. Other than that its fine


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Old 12-10-2017, 06:09 PM
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Which machine shop in NC did you use?
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Old 12-10-2017, 07:38 PM
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Quote:
Originally Posted by CarolinaHD View Post
Which machine shop in NC did you use?
I took them to craven automotive machine service, it looked kinda ghetto but my buddyís took a couple of heads to them and he said heís never had a problem
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