I'm puzzled by the leak down test numbers. My gauges have an input of 100 psi
and read leakage as a percentage, 0-5 being good. Is this equivalent?
Certainly sounds like a head gasket or a crack that opens up with heat in the
head.
Sent from my mobile device
On Oct 2, 2013, at 3:02 AM, Andy Packard <apackard68@att.net> wrote:
> Leak down test at 90psi. All cylinders were at 82-84psi. Wish we could find
> definite data pointing us to the problem, although several if you have said
> head gasket based on the temp differences.
>
> Andy Packard
> Sent from my iPhone
>
> On Oct 1, 2013, at 7:41 PM, Joseph <josephspiano@comcast.net> wrote:
>
>> I had that problem - had wrong head gasket! Good luck!
>> Joseph Alkana
>> '72 TR 6
>> From: Andy Packard
>> Sent: 10/1/2013 5:35 PM
>> To: <taylorturbo@yahoo.com>; fot@autox.team.net; <6pack@autox.team.net>
>> Subject: Re: [6pack] TR250 oil pressure update
>>
>> Thanks Dick. We've isolated it to be either water or head gasket as you
> said.
>> The head gets super hot at 202 deg witht he block at 150 or less. Water is
>> flowing rapidly through the radiator but then boils over after a few
> minutes
>> of 1500-2000 rpm idling.
>> I just pulled the water pump housing and I'm trying to figure the next
> move.
>> Water system bubbled but does not burp even with thermostat removed.
>>
>> Andy Packard
>> Sent from my iPhone
>>
>> On Oct 1, 2013, at 11:40 AM, Sally or Dick Taylor <tr6taylor@webtv.net>
>> wrote:
>>
>>> Andy --- I'm reasonably certain you have an air lock in the cooling
> system.
>> Try removing the thermostat and running the engine. Look for air bubbles
>> returning to the top of the radiator. If bubbles are present, continue
> running
>> the engine till they're gone. Use a portable fan in front of the grill
> opening
>> to keep the engine cool, if needed, during this exercise.
>>>
>>> Another possibility, tho rare, would be if something about the head
> gasket
>> isn't allowing the coolant to circulate.
>>>
>>> You will no doubt slap your forehead when you find the reason!
>>>
>>> Dick
>>>
>>>> From: apackard68@att.net
>>>> Date: Tue, 1 Oct 2013 09:53:45 -0700
>>>> To: fot@autox.team.net; 6pack@autox.team.net
>>>> Subject: [6pack] TR250 oil pressure update
>>>>
>>>> Hi all. It's not for lack of effort that I can't solve my oil pressure
>>>> problem.
>>>> On Saturday, I dropped the pan and used plastigauge on all my bearings
>> and
>>>> they all checked out tighter than the .002 marking but not to the .0015
>> mark,
>>>> within Bentley specs. The oil pump seemed fine and pulled oil when spun
> in
>> my
>>>> hand. Once in the car though, problems getting it circulated. I drove
> it
>> to
>>>> the shop helping with this after installing the HD spring in the
>> regulator. I
>>>> had more pressure at first, but when I arrived and slowed to an idle it
>> was
>>>> gone and the water started boiling. Stuck on this one and trying to
> stay
>>>> patient.
>>>>
>>>> Andy Packard
>>>>
>>>> ________________________________________
>>>>
>>>> 6pack@autox.team.net
>>>>
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>> ________________________________________
>>
>> 6pack@autox.team.net
>>
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