[DeTomaso] lowering of surge tank???

John Buckman jb841 at cox.net
Mon Jun 14 18:12:38 EDT 2010


Hey, no problem.  Go have dinner.  : >)

John



On Jun 14, 2010, at 2:55 PM, Larry - Ohio Time Corp wrote:

> Yes John you are right. I missed the part about the cap being off. I was
> thinking (not to be done on a Monday) we were talking about normal system
> operation...my mistake, sorry.
> 
> 
> 
> Larry (dinner time) - Cleveland
> 
> -----Original Message-----
> From: John Buckman [mailto:jb841 at cox.net] 
> Sent: Monday, June 14, 2010 5:30 PM
> To: larry at ohiotimecorp.com
> Cc: fresnofinches at aol.com; detomaso at realbig.com
> Subject: Re: [DeTomaso] lowering of surge tank???
> 
> Hi Larry C,
> 
> The siphoning effect that I am referring to would only happen if the
> overflow tank is located above the surge (or fill) tank, AND would only
> happen when the fill cap is removed.  This assumes that the fluid level in
> the overflow tank is above the surge tank filler neck, and that the system
> is cool/cold. 
> 
> John
> 
> 
> 
> On Jun 14, 2010, at 2:04 PM, Larry - Ohio Time Corp wrote:
> 
>> Hi Larry,
>> 
>> Yes, it is the best to have the cap at the highs point, but it is not the
>> end of the world if it is not. It will be harder to get all the air out.
> You
>> may think about the vacuum system we talked about a few months ago. I
> never
>> used one.
>> 
>> There will never be any siphoning effect with the overflow tank. Water
> going
>> into the tank is then the system pressure exceeds the cap pressure. The
>> water in the overflow tank enters the cooling system when the system cools
>> down and creates a vacuum in the system, that then draws the water back
> in.
>> 
>> Larry (rip it out) - Cleveland
>> 
>> 
>> 
>> -----Original Message-----
>> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]
> On
>> Behalf Of fresnofinches at aol.com
>> Sent: Monday, June 14, 2010 4:46 PM
>> To: jb841 at cox.net; detomaso at realbig.com
>> Subject: Re: [DeTomaso] lowering of surge tank???
>> 
>> John,
>> 
>> I hadn't thought about the siphon effect.
>> 
>> With that in mind...
>> 
>> As long as the coolant level in the overflow tank was lower than the
> filled
>> surge tank level, there should be no siphoning effect, right?
>> 
>> Larry
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> -----Original Message-----
>> From: John Buckman <jb841 at cox.net>
>> To: fresnofinches at aol.com
>> Cc: detomaso at realbig.com
>> Sent: Mon, Jun 14, 2010 1:12 pm
>> Subject: Re: [DeTomaso] lowering of surge tank???
>> 
>> 
>> Larry,
>> 
>> 
>> 
>> I agree with your thoughts on the surge tank.  The cap needs to be at the 
>> 
>> highest point on the system.  You could probably lower the surge tank and
>> extend 
>> 
>> the fill fitting and cap up to become the highest point in the cooling
>> system.
>> 
>> 
>> 
>> The overflow tank could be located above the fill cap, but when you
> removed
>> the 
>> 
>> fill cap to check the coolant level, coolant would siphon/drain from the 
>> 
>> overflow tank and create a mess unless there was a shut-off valve adjacent
>> to 
>> 
>> the fill cap.    The problem here is the old memory thing..........and we
>> all 
>> 
>> know how that works.
>> 
>> 
>> 
>> John
>> 
>> 
>> 
>> 
>> 
>> On Jun 14, 2010, at 12:49 PM, fresnofinches at aol.com wrote:
>> 
>> 
>> 
>>> 
>> 
>>> All,
>> 
>>> 
>> 
>>> I have a project in mind that requires I lower the surge tank. The
>> overflow 
>> 
>> tank need not move for the project.
>> 
>>> 
>> 
>>> As the surge tank houses the cooling system pressure cap in our Panteras,
>> I 
>> 
>> think the cap needs to be the highest point in the system?
>> 
>>> 
>> 
>>> With that in mind, I guess if I keep it higher than the highest points of
>> the 
>> 
>> cylinder heads I should be okay?
>> 
>>> 
>> 
>>> What about the overflow tank? Is its relation to the height of surge tank
>> or 
>> 
>> engine of any concern?
>> 
>>> 
>> 
>>> Your thoughts and advice are solicited.
>> 
>>> 
>> 
>>> Thanks,
>> 
>>> 
>> 
>>> Larry
>> 
>>> 
>> 
>>> 
>> 
>>> 
>> 
>>> 
>> 
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