Well...that's suboptimal
Put the free craigslist engine on a stand after low leakdown numbers. Saw an odd bulge on the side of cylinder 3. I thought it was just some gunk buildup, so I picked at it with my finger and....
tldr: unusual bulges typically don't end well. https://cimg0.ibsrv.net/gimg/www.mia...e29d22c652.jpg |
J.B. weld?
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Didn't your mother ever tell you to not pick scabs? How is it supposed to heal if you keep picking at it?
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The internals may have a few surprises also. sub'd for carnage pics.
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In my neighborhood, fingering a crankcase has a whole different meaning...
subbing to see where this story goes |
Well, got some interesting shrieking noises when I try and turn the motor by hand, so I pulled the head and...
https://cimg9.ibsrv.net/gimg/www.mia...cee5937a52.jpg I'm no expert, but I'm fairly certain the #3 piston shouldn't be stationary. I'll pull the pan during lunch, see if the rods are doing a decent pretzel impersonation. |
https://cimg2.ibsrv.net/gimg/www.mia...0f53ea1699.jpg Lol where is it? |
If you actually did a leakdown test on #3, that piston is welded into the bore or there's a big hole in it. 80psi x 8.4in^2 = ~700lbs of force applied straight down on the piston
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Originally Posted by Savington
(Post 1465014)
If you actually did a leakdown test on #3, that piston is welded into the bore or there's a big hole in it. 80psi x 8.4in^2 = ~700lbs of force applied straight down on the piston
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https://cimg8.ibsrv.net/gimg/www.mia...40432d5279.jpg
Patiently waiting for OP to upload a picture like this.. :hs: |
Originally Posted by sshamrockk
(Post 1465037)
https://cimg8.ibsrv.net/gimg/www.mia...40432d5279.jpg
Patiently waiting for OP to upload a picture like this.. :hs: |
Originally Posted by calteg
(Post 1464974)
tldr: unusual bulges typically don't end well.
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As promised, premium carnage pics:
https://cimg8.ibsrv.net/gimg/www.mia...f375e2f9ab.jpg https://cimg0.ibsrv.net/gimg/www.mia...e2b472037b.jpg https://cimg1.ibsrv.net/gimg/www.mia...aa0907e37c.jpg https://cimg2.ibsrv.net/gimg/www.mia...167879722f.jpg https://cimg6.ibsrv.net/gimg/www.mia...c6e908f6de.jpg https://cimg0.ibsrv.net/gimg/www.mia...4cbda3e178.jpg So what are we thinking? Fresh head gasket and bolt the thing back together? Hoping to salvage the head and the oil pan. Do the NA and NB share the same pan? tldr; Don't be a pussy, run allofit, earn glory. |
My favorite photo was the soup of bolts & metal :likecat:
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Originally Posted by calteg
(Post 1465051)
tldr; Don't be a pussy, run allofit, earn glory.
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Go to your local fab shop and have them weld the rod back together. Run all of it. Profit.
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Send it. |
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I was thinking more of this:
May the good Lord take a liking to ya and blow you up real soon! |
MiataTurbo: Taking cocks and venting blocks.
Looks like the piston kissed the head a little bit, valves seem okay. What does the hive think, is the head reusable? https://cimg9.ibsrv.net/gimg/www.mia...99f770e536.jpg https://cimg0.ibsrv.net/gimg/www.mia...28c3608968.jpg |
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