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Old 11-30-2010, 12:28 PM   #1
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Insite,

Thank you for the great pictures..! You are almost ready to roll, congratulations !!

Q: how deep you drilled the holes for the helicoils..?

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Old 11-30-2010, 12:50 PM   #2
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Quote:
Originally Posted by Gilles
Q: how deep you drilled the holes for the helicoils..?
i had two bolts that actually came out okay, so i measured the depth of the holes & tried to match that with my drilling. i believe it was like 31mm.

when drilling through the bolts, it's easy to notice when you're at the bottom. there is a gap between the end of the fastener & the bottom of the tapped hole; you can feel when the drill goes through the last of the steel. still, though, better safe than sorry!
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Old 11-30-2010, 01:14 PM   #3
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Ugh! Extracting bolts that have bonded to the block is probably my least favorite job. I screwed it up more than once in my youth too. At least your motor was out where you could get some elbow room for turning wrenches and it sounds like you got good results.

From the looks of that motor I bet it saw duty on winter salted roads many times.
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Old 11-30-2010, 02:09 PM   #4
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Quote:
Originally Posted by Topless
Ugh! Extracting bolts that have bonded to the block is probably my least favorite job. I screwed it up more than once in my youth too. At least your motor was out where you could get some elbow room for turning wrenches and it sounds like you got good results.

From the looks of that motor I bet it saw duty on winter salted roads many times.
Topless:

Here's a link to my adventure with broken exhaust manifold bolts:

http://www.ppbb.com/phorum/read.php?19,1552140,1552140#msg-1552140

Worthwhile reading for anyone contemplating removing exhaust manifold to cylinder head bolts.

Regards, Maurice.
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Old 11-30-2010, 02:16 PM   #5
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Maurice, that line from the top of the oil cooler is a vent to the surge tank to release entrained air from the cooler, which happens to be the highest point of the cooling system on the engine. By getting rid of the air, the laminar flow exchanger works very well; with trapped air, its thermal efficiency falls off very quickly....
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Old 11-30-2010, 02:19 PM   #6
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Originally Posted by JFP in PA
Maurice, that line from the top of the oil cooler is a vent to the surge tank to release entrained air from the cooler, which happens to be the highest point of the cooling system on the engine. By getting rid of the air, the laminar flow exchanger works very well; with trapped air, its thermal efficiency falls off very quickly....
JFP:

Thanks again for your invaluable input!

It's always appreciated.

Regards, Maurice.
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Old 12-01-2010, 02:29 AM   #7
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Awesome project, I'm really interested in what kind of real world performance it will put down
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