Cylinder Head Issue....

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LxVert

Member

Dec 26, 2003

80

0

6

Dec 12, 2008

#1

• Dec 12, 2008

• #1

Hey everyone,

I had my heads standing up and one head fell over; when the head hit the cement floor it put a chip in the bottom machined surface area. The chip at the widest point is 1/4 inch and starts in the combustion area then extends towards the outside (exhaust side) approximately a 1/4 inch also. I measured the depth of the chip and its 0.07 inches.
Is this going to create problems with compression and correctly sealing?
Is my head done for?

 

P

PAzYearazzUP

Banned

Dec 12, 2008

33

0

0

Dec 12, 2008

#2

• Dec 12, 2008

• #2

That is 0.70" deep extending out from the combustion chamber to the cylinder surface. That will push compression out that galley, burn your head gasket, let alone lose compression is she is junk.

If you weld it, she might warp from the welding. Now you surface it to make sure. So you a have to surface the other head so they lay parallel with the intake manifold. The compression goes up. You might have a hotter running engine or knock more is run premium and now you look at all that machining and welding is you go and pull a junker off some low miler and you might cheap out or break even with the machine/weld money and time it took to run to both places that want or might not want to take on a come-back is a band-aid patch is face it = She is JUNK!

 

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uedlose

Founding Member

Jan 24, 2001

635

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17

Charles Town WV.

Dec 12, 2008

#3

• Dec 12, 2008

• #3

how about some pics. so we can take a look.lay the head gasket on it if it is in the fire ring then it should be fixed. .07 is not much to take off just have the other head milled the same like said.

 

L

LxVert

Member

Dec 26, 2003

80

0

6

Dec 13, 2008

#4

• Dec 13, 2008

• #4

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I don't have a head gasket to put up against it. I dont believe that shaving down the head would be an option, I just had the heads milled down not to long ago and the machine shop said that they went as far as they could before I would develop ptv issues.

 

Maryland Stang

Active Member

Aug 21, 2002

1,656

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39

Greenville, NC

Dec 14, 2008

#5

• Dec 14, 2008

• #5

Get it welded, have it milled and then install the head and check for clearence issues. Even if there is an issue you can advance or retard the cam by 2 degrees and fix the issue. It may cost you a couple of HP but it's far cheaper then buying a new head.

 

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uedlose

Founding Member

Jan 24, 2001

635

0

17

Charles Town WV.

Dec 14, 2008

#6

• Dec 14, 2008

• #6

if that is just on the edge of the combustion chamber then I would smooth out the sharp edges and run it if it is not in the fire ring I would not worry about it at all

 

2

2002BLGT

Well-Known Member

Dec 18, 2003

2,945

4

59

Bedford VA

Dec 14, 2008

#7

• Dec 14, 2008

• #7

Get another head , I wouldnt trust that

 

2000xp8

SN Certified Technician

Aug 8, 2003

8,015

1,613

194

NJ

Dec 14, 2008

#8

• Dec 14, 2008

• #8

I'm guessing that is an e7 judging by your sig? May not be worth any more time or effort if it is.
I'd just pull the valves and springs out, and get another. Then send them both in to the head shop.

 

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HEADGAMES

New Member

Jun 19, 2005

2

0

1

Dec 14, 2008

#9

• Dec 14, 2008

• #9

your not going to easily weld that...cast iron has to be brazed not welded. I agree with a previous poster, if it is inside the fire ring then your good, just get rid of the edges, if not...It is repairable, but how much are you going to spend? I would say in the hood of $2-300

 

LiquidGT

Member

Oct 8, 2007

368

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16

Near STL hell

Dec 14, 2008

#10

• Dec 14, 2008

• #10

I could be wrong, but being right by the spark plug could be a problem. Even if it could be welded/brazed it would still drive me nuts, I would have to have the peace of mind. Unless some expert chimes in and says, "Why I've fixed heads like that many a time and ran them down the track.", then maybe I would use it.

It's a common E7, you'll probably come out the same money wise if you can just buy one head than fixing that head.

 

L

LxVert

Member

Dec 26, 2003

80

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6

Dec 15, 2008

#11

• Dec 15, 2008

• #11

Alright, thanks for the input everyone.
Seeing as the weather prevents me from driving the car anyways looks like I will just not waste my time with those heads, and save up over the winter for some aluminum heads; maybe afr's or something along those lines.

 

Airborn406

New Member

Dec 15, 2008

5

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0

Fayetteville Arkansas

Dec 15, 2008

#12

• Dec 15, 2008

• #12

I concur with, run um. With the edges removed there would be no hot spots, so if it is a daily driver with a little playing around now and then? won't make any dif.

 

L

LxVert

Member

Dec 26, 2003

80

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Dec 29, 2008

#13

• Dec 29, 2008

• #13

View attachment 281902

Hey so I found a head gasket around the house and this is what it looks like up against the head.

 

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

2,487

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Miami, Ok

Dec 29, 2008

#14

• Dec 29, 2008

• #14

smooth the edges up to get of potential hot spots and it will work fine.

 

dcurtis

10 Year Member

Jan 19, 2006

688

7

39

Dec 29, 2008

#15

• Dec 29, 2008

• #15

Foxfan88 said:

smooth the edges up to get of potential hot spots and it will work fine.

Click to expand...

I second that, it will be fine