defective injector seat in head.

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Jedidiahwiebe
Posts: 113
Joined: Sat Oct 02, 2010 8:58 am
Member's Photo Album: http://www.delica.ca/Photos/
Vehicle: Delica L300

defective injector seat in head.

Post by Jedidiahwiebe »

Ever seen anything like this before? I've just purchased a new (bare) head and spent the day grinding valves installing seals, and swapping the bits over. the last thing to install was the injectors when I noticed this funny defect. At the bottom of the bore where the nozzle seats on it's copper crush washer... is a void in the casting! It's like a hole in swiss cheese was uncovered by the machinist whilst boring out the injector seat.

http://imgur.com/na9qqSE

http://imgur.com/FQZBfHn

If you zoom in you can see it better probably. It's about 3/64ths deep my my guess.

What to do? Ship it back to my supplier?
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dennis_lambert
Posts: 321
Joined: Tue Sep 29, 2009 7:24 pm
Member's Photo Album: http://www.delica.ca/Photos/
Vehicle: 2 L300 exceed high roofs
Location: Kelowna BC

Re: defective injector seat in head.

Post by dennis_lambert »

In my opinion it Looks like casting porosity during manufacturing to me.
Typically not an issue except thats a sealing surface.
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