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Re: [Fot] Low oil pressure after overheating

To: "jason@multivintage.com" <jason@multivintage.com>
Subject: Re: [Fot] Low oil pressure after overheating
From: Edward Dunn <edunn@qualityfueltrailers.com>
Date: Mon, 25 Aug 2014 11:48:18 -0700
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References: <1770f939.9d8e0.147f62f6d32.Webtop.49@charter.net> <20140822175031.160EA25857E6@autox.team.net> <BLU437-SMTP801FD1547F3BB7D049284AB2D00@phx.gbl> <20140822225627.9AA0125849EF@autox.team.net>
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Thread-topic: [Fot] Low oil pressure after overheating
Jason, what kind of typical life (hours, etc.)are you getting on your GT6
motor?

Ed Dunn






-----Original Message-----
From: Fot [mailto:fot-bounces@autox.team.net] On Behalf Of
jason@multivintage.com
Sent: Friday, August 22, 2014 3:57 PM
To: Vangoughv; Fot; Tony Drews
Cc: Fot
Subject: Re: [Fot] Low oil pressure after overheating

Vince, for the GT6... FGR runs only redline straight 50wt racing synthethic In
all our race cars. We have been using this for years. Expensive yes! But don't
argue with years of success in GT6 race motors. Zippy has run on this for
many, many, years. In my opinion there is no substitute.
Nfi,
Jason Ostrowski
Friendly Ghost Racing
Sent via BlackBerry by AT&T

-----Original Message-----
From: Vangoughv <vangoughv@hotmail.com>
To: Tony Drews<tony@tonydrews.com>
Cc: fot@autox.team.net<fot@autox.team.net>
Subject: Re: [Fot] Low oil pressure after overheating

What type and viscosity motor oil are you using?
Newer Alloy style oil pump or a re-cored original cast type?

Vince

> On Aug 22, 2014, at 1:50 PM, Tony Drews <tony@tonydrews.com> wrote:
>
> I've been thinking about this one.  Nothing about overheating SHOULD
> cause
the oil pressure change unless you managed to get water into the oil, I'd
think.  I'd start with removing and cleaning the oil pressure relief valve in
the oil filter head.  If you get a piece of dirt holding that open, you'll see
low pressure at idle.
>
> Of course the advice about "check the pressure gauge" is good too.
>
> Tony Drews
>
> At 08:30 PM 8/20/2014, damys@charter.net wrote:
>> Hello,
>>
>> I'm new to the group and hope I can get some advice.  My son and I
>> are building a GT6 into a racer and need some help.  We've had the
>> engine rebuilt with some mods.  Ross pistons, WBC cam, roller
>> rockers, head shaved to approx. 10-1 compression, mild port job and
balanced.
>>
>> At Elkhart last weekend we overheated the engine and now there is no
>> oil pressure at idle.  The engine runs strong, no noise, and still
>> has pressure when cold.  As the engine warms the pressure drops.
>>
>> I will add a heavier radiator cap and a shroud to direct air into the
>> stock style (aluminum) radiator.  It's been suggested I shim the
>> pressure relief valve to increase overall oil pressure.
>>
>> Any advice on resolving the oil and temp problems.
>>
>> The engine easily turns 6500 RPM's but we have the MSD set at 6000.
>> The engine has approx. 1000 miles on it.
>>
>> Thanks,
>>
>> Dave Amys
>> _______________________________________________
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>>
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