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Re: Head Sealing Problem?

To: "Russ Moore" <>, "'Larry Young'" <>,
Subject: Re: Head Sealing Problem?
From: "rgk" <>
Date: Wed, 26 Feb 2003 12:39:35 -0600
I don't know what the norm is, and I hope others that do pipe up, but I
can't do a 20 minute race running balls to the wall without reaching 220
degrees. This alone may be putting water in the bottle and it has become
something I have gotten used to. I have tried the gas-tester route, and the
radiator pressure tester and come up clean. With no exhaust to pump the
water out, I believe it's simply the thermodynamics of water pressure
overcoming the cap. 15 minute races are perfect, but the heat is rising to
the limit at the end. All I have to do is take my foot out of it for a few
laps and it cools down to around 200. OTOH, I can't accept having to back
off to cool it down anymore and losing places to guys I should beat, so I'm
going to get an aluminum radiator very soon. I think this may be the

Bob Kramer
----- Original Message -----
From: "Russ Moore" <>
To: "'Larry Young'" <>; <>
Sent: Wednesday, February 26, 2003 11:19 AM
Subject: RE: Head Sealing Problem?

> One of three things.
> Not sealing at the head/cylinder area; not sealing at the base (figure 8
> gaskets) or a fracture either in the head, block base or in a liner.
> Russ Moore
> -----Original Message-----
> From: []On
> Behalf Of Larry Young
> Sent: Wednesday, February 26, 2003 12:05 PM
> To:
> Subject: Head Sealing Problem?
> I'm trying to figure out what's going on with my TR3 engine.  Ever since
> I rebuilt the engine, I've had a problem with it blowing water out into
> the overflow bottle.  In a 20 minute race, it will blow about a quart
> into the overflow.  It's also running hot.  I'm not getting any water in
> the oil.  I'm running a solid copper head gasket and used a block sealer
> after I installed the head.  I also pressure tested the block and all
> was fine.  After the first race weekend, I checked for combustion leaks
> into the radiator using a kit which has a dye in it.  The dye is
> supposed to change color if combustion gases are present in the cooling
> system.  I couldn't tell for sure whether it was changing color or not,
> so I retorqued the head and treated it again with block sealer.  I did
> have to turn the nuts to get the torque back to 100 lb and one stud felt
> a bit squishy, like it didn't want to tighten up.  I gather from resent
> posts, that this is abnormal.  It continues to blow water out the
> overflow.  I think I've got a head gasket that leaks only under load,
> i.e. race conditions.  However, others I've talked to aren't so sure.
> I'm thinking I need to pull the head to try and figure out what's going
> on.  Any suggestions would be appreciated.
> Thanks,
> Larry Young

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