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Cracked Head on 4.0 liter

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pacerman View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pacerman Quote  Post ReplyReply Direct Link To This Post Topic: Cracked Head on 4.0 liter
    Posted: Jan/28/2018 at 9:54am
Not mine.  Just showed up on Youtube.  You can subscribe to the build.

https://www.youtube.com/watch?v=HL2rkbenDyE

Joe
Happiness is making something out of nothing.
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DaemonForce View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DaemonForce Quote  Post ReplyReply Direct Link To This Post Posted: Jan/28/2018 at 12:08pm
Not something I see every day but my wheeler friends will sometimes gripe. If it isn't one bubble it's another.
1971 Javelin SST
American 304 2v | FMX | AM20-3.31

1983 American Limited
Jeep 4(.7)L S-MPFI | 1982 NWC T-5M (4.03/.76) | Dana30IFS/35-2.72
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Post Options Post Options   Thanks (0) Thanks(0)   Quote farna Quote  Post ReplyReply Direct Link To This Post Posted: Jan/29/2018 at 7:40am
I did some porting work on a junkyard head, since the head looked practically new. Put it on and it started running water out of the exhaust as soon as I started it! I mean enough to notice right away! Turned out to have a big crack deep in one of the ports. Odd place for a crack! Wasted about six hours cleaning the bowls up and didn't notice it. When I pulled it off and looked a lot closer, I could SEE the crack!! Always a good idea to check for cracks before doing any work on an unknown head. This one just looked so darn good and clean I figured the bottom end must have had an issue to put it in the junkyard... looked like a rebuilt head. 
Frank Swygert
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