Re: Disassembly of a 69 Z/28 DZ Three Oh Blew Engine
 

Is that crankshaft salvageable; looks pretty beat up.

Re: Disassembly of a 69 Z/28 DZ Three Oh Blew Engine
 

Believe it or not, the engine did spin free after it blew up. I did not try to spin it when I bought it.

As far as the crank goes, the jury is still out. It depends if it is cracked. The mag powder doesn't lie.

Jason

Re: Disassembly of a 69 Z/28 DZ Three Oh Blew Engine
 

Absolutely crack check! And don't believe the theory of stand it on a rag and tap with a hammer to get a good "ring" ... UGH!!!

Re: Disassembly of a 69 Z/28 DZ Three Oh Blew Engine
 

R.I.P. Rest In Pieces.

Re: Disassembly of a 69 Z/28 DZ Three Oh Blew Engine
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SuperNovaSS</div><div class="ubbcode-body">Yes, the block was lightly surfaced at some point. The assembly code is V0321DZ and the partial VIN is 19L528983.

http://i179.photobucket.com/albums/w...ps52666bc2.jpg

http://i179.photobucket.com/albums/w...pse9eef8ff.jpg



</div></div>

My friend's RS Z/28 has the same large 2 in the VIN stamp, a few hundred from yours. You need to save that motor! Check out this VIN stamping, it is the same on the M22 also. What happens is a stamp will break and they will just grab another one:

https://www.yenko.net/ubbthreads/pics...estamps052.jpg

Re: Disassembly of a 69 Z/28 DZ Three Oh Blew Engine
 

Good stuff Jason.Very informative and interesting!

Re: Disassembly of a 69 Z/28 DZ Three Oh Blew Engine
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ss427copo</div><div class="ubbcode-body">Two words: Boat Anchor. </div></div>

[img]<<GRAEMLIN_URL>>/haha.gif[/img]

Re: Disassembly of a 69 Z/28 DZ Three Oh Blew Engine
 

Hey guys,


I thought I would just give an update for those following this thread.

The block came back from the machine shop with the only cracks being in the 2 cylinders I showed in the pictures. It is fixable and is being sent to Australia along with the oil pan which will be installed in a real Z/28 with a very close VIN.

The intake went to Australia to be installed on yet another Z.

The heads had no damage other than the one bent valve and have gone to the South where they will bring another Z/28 a little closer to correctness.

The crank was found to have no cracks so it was sent to Engine Warehouse in Sacramento, CA to be checked, welded, and turned. It came back a few days ago and looks awesome. It cleaned up at 10/10.



Jason

Re: Disassembly of a 69 Z/28 DZ Three Oh Blew Engine
 

Cool, glad you could save it. Why did you weld the crank?

Re: Disassembly of a 69 Z/28 DZ Three Oh Blew Engine
 

The journal got a bit beat up by the rod:

http://i179.photobucket.com/albums/w...psd31952a2.jpg