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PostPosted: Sun Jun 01, 2014 4:23 pm 
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Noob

Joined: Sun Jun 01, 2014 3:54 pm
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Hey. I was active over at EaglesNest for a little while but put the 2DR on hold. About to put the head on, cleaning the surfaces and noticed this:
Image

Image

I'm almost about to give up on this but I'm wondering if this will just blow up if I try to put it all together like this?
Is it possible to 'deck' the block still in the car?

Cheers for the feedback.


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PostPosted: Sun Jun 01, 2014 4:31 pm 
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Javelin

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Are you putting a 4.0 head on? If so use a high end 4.0 gasket and you should be ok. The comp. ring on the 4.0 is larger and closer to that flat spot.

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PostPosted: Sun Jun 01, 2014 6:23 pm 
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Noob

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amchornet wrote:
Are you putting a 4.0 head on? If so use a high end 4.0 gasket and you should be ok. The comp. ring on the 4.0 is larger and closer to that flat spot.


Hi, cheers for the reply. No, all bone stock (4.2 head). :( That's a little gouge in the deck. No idea how it happened.


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PostPosted: Sun Jun 01, 2014 8:06 pm 
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Hornet
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is it very deep? if its pretty light, you can take a sanding block with some 200 grit sand paper and some water, and sand it all down real good. see how it comes out. good luck!

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PostPosted: Sun Jun 01, 2014 8:24 pm 
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Metropolitan

Joined: Sun May 19, 2013 5:15 pm
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That looks like a pretty bad spot for a scratch.. Your best bet would be get the block decked at a machine shop. Or deck it by hand but if you sand any low spots into it you will just make the problem worse. I seen them do it on the power block with a straight piece of square tubing. Not positive with grit but I believe they used 80 then 600 with wd40. Some gaskets need smoother surfaces to seal than others. Could also try a high temp permatex in that spot but I'm not sure how well that will hold up to the pressure in that area.


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PostPosted: Sun Jun 01, 2014 8:33 pm 
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Hornet
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cant tell you how many head gaskets I have replaced at work. using 200 wet sand paper on a 4x6 sanding block puts the correct finish on to seal for one of these head gaskets.

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dave

WHEN IN DOUBT, BUY MORE BEER!!!!

ASE cert. mechanic 15 years.

http://www.picasaweb.google.com/das24rules

62 rambler classic (casper)
63 rambler american (rosie)
82 eagle sx4 (honeybadger)
82 eagle sw (rottywagon)
79 spirit (drag race car)


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PostPosted: Sun Jun 01, 2014 10:47 pm 
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Hornet
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Right before you put the head on, use some Indian Head shellac in that gouge to keep it from leaking. Real common on rebuilt engines. People drag the head across the block as they pull it off.

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PostPosted: Mon Jun 02, 2014 10:48 am 
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Noob

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Hey, cheers for the replies! I have just taken my head out of the oven... Hehe..
Looks like I'll give it a go with some Copper and a dab of shellac.

Are there many Ex 'Nesters' here? I had a Project thread over there for a while last year.


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PostPosted: Mon Jun 02, 2014 11:39 am 
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Hornet
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Location: North Seattle sort of
The nest is now Eaglesden

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