learned the hard way
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Junior User
Joined: Mar 2005
Posts: 96
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From: up north
learned the hard way
Well guyes : be very carefull when porting on the exhaust side>
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I know Ya went to far!!! shoot, the water jacket was exposed,when porting on this side the small square casting in the exhaust port can be ground down , only go about .150 per side into it or you to will be looking for heads in the back yard.. Isnit fun breaking stuff?
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I know Ya went to far!!! shoot, the water jacket was exposed,when porting on this side the small square casting in the exhaust port can be ground down , only go about .150 per side into it or you to will be looking for heads in the back yard.. Isnit fun breaking stuff?
Posting Guru
Joined: Oct 2005
Posts: 1,235
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better the exhaust than the intake... if you can get it welded back up, even if it starts to seep a little bit it'll go out the exhaust instead of into the motor.... my ex brother in law hit into his intake side water jacket and had it welded back up. it's been running hard in his fairlane for the last 9 years with no problems..
Elder User
Joined: Dec 2004
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From: Springfield, OR
I saw a post from a guy in an RV forum who got into the water jacket. He had a friend that was an experienced mig welder weld a bead accross it. Worked just fine. He pre-heated first with a torch. People will tell you that you cant weld cast iron but you can if the guy's good.
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
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From: Long Island USA
Originally Posted by fordraceboy
better the exhaust than the intake... if you can get it welded back up, even if it starts to seep a little bit it'll go out the exhaust instead of into the motor....
Either get it welded by a VERY good welder or go find another cheapie head.
Is it a D2TE/C8AE I hope?
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Junior User
Joined: Mar 2005
Posts: 96
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From: up north
the bottom inside square (small) .this is were i should of only taken .050 or less.
a welder is going to try to fix it . i will now more later this week.AHHHHHHHHHHHH!!!!!!
a welder is going to try to fix it . i will now more later this week.AHHHHHHHHHHHH!!!!!!
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Elder User
Joined: Mar 2005
Posts: 709
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From: Mesquite, Texas
mmuenchow, what is the numbers on your head so we can locate you one if the welder cant make it right? I hope he can. Good luck, Charles
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Elder User
Joined: Jun 2001
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From: Corpus Christi, Texas
well I did the same thing when I ported my other head the first time. went right into a water jacket on number 5 cylinder. had it welded up by professional welder(heated the head before welding) It started seeping about 60 miles into it. Got a another head and had it redone. Accidntally dropped the pump drive keeper in the oil pan, so had to remove the pan and found more than the oil pump drive keeper. found a main cap bolt from # 2 main cap. also found that the block had crack were the bolt screwed into. So now I have a completely new motor due to a little cylinder head leaking. only thing my machinist and I could figure out is when the engine was idling and your cam is in overlap. you get a little scavenge and sucked water into #5 piston hole and as water dosenot give . BANG brock the block. This is my two cents get a new head!!
Last edited by polcat; Mar 20, 2006 at 05:58 PM.
FTE Leadership Emeritus
Joined: Jul 2002
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From: Long Island USA
polcat has a very good point...
Hydrolocking ain't fun.
Here's the good news: I believe the D2TE and C8AE heads are just as good as the CJ heads if they have the exhaust valve changed over. Since you have heads with exhaust valves already, putting exhaust seats in another seat of heads might be the way to go... and start porting on them all over again... too bad about blasting that CJ head though...
I'm sure someone will come along to prove me wrong
Hydrolocking ain't fun.
Here's the good news: I believe the D2TE and C8AE heads are just as good as the CJ heads if they have the exhaust valve changed over. Since you have heads with exhaust valves already, putting exhaust seats in another seat of heads might be the way to go... and start porting on them all over again... too bad about blasting that CJ head though...
I'm sure someone will come along to prove me wrong
Fleet Mechanic
Joined: Jul 2000
Posts: 1,493
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From: SE Iowa
I like it when people destroy CJ parts...It makes mine more valueable 
Seriously though, I feel your pain. I think anyone who has ever ported their own heads has ground thru up at one time or another. I have several junk sets of heads laying around that I used for practice before I actually did the heads for my 5.0L. Hopefully that welder knows his stuff and can fix the head.
Stryder
Seriously though, I feel your pain. I think anyone who has ever ported their own heads has ground thru up at one time or another. I have several junk sets of heads laying around that I used for practice before I actually did the heads for my 5.0L. Hopefully that welder knows his stuff and can fix the head.
Stryder
Elder User
Joined: Jun 2001
Posts: 508
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From: Corpus Christi, Texas
I am running C8AEH heads with Stainless 2.09/1.65 valves . i ported and polished them learning were to go on the old head I screwed up but they will flow nicely when their done. My 418FE runs extrmely well!!