Head Gasket sealer

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m_jermyn
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Mon Aug 09, 2010 11:32 am

Good evening all,

After a bit of advice in the head gasket department. Does it just go strait on or should you add a sealer to each side? The only reason I ask is I have sean a sealer compound available.

http://www.pelicanparts.com/cgi-bin/sma ... d%20%09%20

Or is this not neaded?

Also any advice on the head gasket install is appreciated, Torques, orders ect ect.

Its a M20

Mike
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Charlie3000
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Mon Aug 09, 2010 4:05 pm

Hi Mike, I have only done one head gasket on my car, so I'm not sure how useful my advice is! :mad: .

When I put my engine back together, I didn't use any sealer, just made sure everything was as clean as possible. Make sure you clean out the threads for the head bolts as well, as any dirt in there can give you problems when you come to torque them up.

As for torque readings, what head bolts are you using? Generally nowadays they are the torx head type, but there are specifications for Hex headbolts!

Charlie
m_jermyn
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Mon Aug 09, 2010 9:57 pm

the torques head type are the ones I am using..
leeparkes
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Mon Aug 09, 2010 10:36 pm

m_jermyn wrote:the torques head type are the ones I am using..
I hope there new

As said, No sealant nessasary just make sure both surfaces are clean as a whistle, threads too.
Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place.. :o:
m_jermyn
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Mon Aug 09, 2010 10:44 pm

Come on lee,

I have replaced everything :D of course they are new
e30topless
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Mon Aug 09, 2010 10:48 pm

leeparkes wrote:
m_jermyn wrote:the torques head type are the ones I am using..
I hope there new

As said, No sealant nessasary just make sure both surfaces are clean as a whistle, threads too.
+1 ,

fit it dry ,
make sure you clean the thread holes from any oil, water/debris

:D
m_jermyn
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Mon Aug 09, 2010 10:51 pm

Will do, any tips on cleaning the holes? I noticed yeterday I screwed a head stud in and when I unscrewed it some debris came out with it... Should I just keep doing this until nothing remains?
e30topless
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Mon Aug 09, 2010 10:57 pm

a cloth around a long screwdriver does the trick,

if the holes have oil or water in them, the fluid is compressed when torquing the head bolts down,

this can lead to a cracked block :cry:

Image
TouringTash
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Mon Aug 09, 2010 11:27 pm

would using denatured alcohol be a good idea as it would completely evaporate?

poured into the threads then dip in the cloth/driver combo.

leave to dry.

used to do this with any marine work.
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aeberbach
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Tue Aug 10, 2010 1:45 am

Metho, not a bad idea. But you might have to squirt a lot in there to displace all the water. I stuck a tube into the bolt holes and sucked out the liquid. A nasty mix of rusty water and WD-40 it was too, mints would have been more useful than beer in that situation but I had to make do.

I did not use any gasket seal compound but as has been said, make sure it is all clean and flat.
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