Ferrari Mailing List: Re: 512 temps

[Peter Rychel (dino308gt4]

Has the temperature risen only recently, or has this been the case since this "new" engine has been installed in the car? In other words, when the engine was replaced it ran normal afterwards, but now, all of a sudden, the temp has risen.

What about fluctuation on the gauge? My GT4 would vary a lot, regardless of the seasons. I went through the cooling system, replacing the pump (now: big bearing factory 328/F40 style - beware cheap Chinese aftermarket sand-cast big bearing pumps!), the thermostat (OEM $$$, original appeared to be a Canadian Tire variety!), new rad fans (OEM Lucas) and had the radiator core replaced (heavy duty, four-row copper core). Now, when it comes up to temp it stays absolutely rock steady, regardless of the seasons (winter, spring summer or fall - same temp no matter what the outside temp) and the needle rests slightly lower than it did before. I can't attribute which "repair" did the "trick", but certainly the OEM 'stat works better in the housing, sealing off properly to recirculate the coolant when needed and the recore certainly dropped the temp a bit because of the lack of calcium deposit (even though I regularly change and flush the coolant out, there's still buildup that occurs).

Peter

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From: clyderomerof4 [at] bellsouth.net
Date: Sat, 13 Jun 2015 22:27:59 -0400
Subject: Re: [Ferrari] 512 temps
CC: ferrari [at] ferrarilist.com
To: dino308gt4 [at] hotmail.com

The thermostats are the same they are one the fire wall of the car 

Along with the temp sensor that turns on the fan it's in the radiator 

All of that is from the old car 

The 3 temp sensors on the engine 2 to the ECU and one the temp gauge in the cockpit are from the new engine 

Those are the only new sending units for this car and they have 16 k on them

The only thing that I can figure is that there is still some air in the system 

But usually the fans don't come on if there is air in the system

I am totally stumped on this one

When I shoot the upper radiator pipes with my infrared gun for temp readings it matches the gauge within 5 degrees

Going to do a block test to see if I am getting any leak a minor one thru the head gasket into the coolant 

That's the only thing left 

In victory you deserve Champagne

In defeat you need it!

     

Scars are Tattoos with better stories !

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You miss all the fun! 

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Clyde Romero

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678  6419932

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On Jun 13, 2015, at 6:28 PM, A.J. <newgent2tx [at] gmail.com> wrote:

I forget, cLyde, did you replace it with the same year engine? All other ancillaries same as your old one? Have you tested the sending unit? Each thermostat? Got any extras laying around you can swap out to see if it makes a difference?

On Sat, Jun 13, 2015 at 4:20 PM, clyde romero <clyderomerof4 [at] bellsouth.net> wrote:

Guys looking for a different perspective on this

My 512 doesn’t over heat but it runs warmer than normal

As you know it has a relatively new engine 16 k

So what do you guys out there think it could be

Fans come on and off at the right time but the static temp is now 190 195 which is way warmer than it was before

No leaks

My guess is that one of the 2 thermostats is sticking ?

It out there

Waiting for the responses

 

CLYDE

 

In victory you deserve Champagne

In defeat you need it!

   

 

 

Scars are tattoos with better stories!

 

Clyde Romero

Clyderomerof4 [at] bellsouth.net.          

678  6419932

 

Confidentiality Notice:  This e-mail ( including attachments ) is covered by the Electronic Communications Privacy Act, 18 U. S. C., Sections 2510-2521, and is intended only for the persons or entity to which it is addressed, and may contain confidential or privileged material.  Any unauthorized review, use, disclosure, dissemination, copying, forwarding or distribution is prohibited.

 

 

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