Ferrari Mailing List: Re: 512 temps

[Clyde Romero (clyderomerof4]

Great idea 

I think that's the issue 

In victory you deserve Champagne

In defeat you need it!

     

Scars are Tattoos with better stories !

If you follow all the rules

You miss all the fun! 

If you have no enemies, you have no character !

Clyde Romero

Clyderomerof4 [at] bellsouth.net.          

678  6419932

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On Jun 14, 2015, at 11:01 PM, Charles Perry <charles [at] carolina-sound.com> wrote:

Similar symptoms to when my series 1 TR had a leaking head gasket. It would run beautifully all the time as long as you never crossed 3k RPM on the motor. Once you did, combustion gasses started to get into the coolant. They would eventually collect at the high point of the radiators (at the bleed valves) and the coolant circulation would slow or stop, causing overheating. Fans might or might not have run depending on OAT. Bleeding the system (helps to have car on a hill with nose higher) would restore normalcy until you crossed 3k RPM again.

 

Took me nearly a year to figure this out. It’s tough to do a combustion gas / coolant check because of the way the overflow tank works on the TR. I basically narrowed it down by process of elimination. Before pulling the motor to do the head gaskets I took a last-ditch shot at re-torqueing the heads instead (with engine in car). Worked beautifully. No problem in ten years since.

 

I bought the car with under 5k miles on it in 1997. My guess is that the original owner never had the heads re-torqued at the first service interval, which is required in factory maintenance. So a pinhole leak was enough to wreak havoc for a year. It’s possible that since your used motor is low mileage (lower than mine when it developed the problem) you may be facing the same thing.

 

-- charles

 

 

From: Ferrari [mailto:ferrari-bounces+charles=carolina-sound.com [at] ferrarilist.com] On Behalf Of Clyde Romero
Sent: Saturday, June 13, 2015 10:28 PM
To: Charles Perry
Cc: The FerrariList
Subject: Re: [Ferrari] 512 temps

 

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 !

 

If you follow all the rules

You miss all the fun! 

 

If you have no enemies, you have no character !

 

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.

This email transmission, and any documents, files or previous email messages attached to it, may contain confidential information that is priviledged.  If you are not the intended recipient, or a person responsible for delivering it to the intended recipient, you are hereby notified that any disclosure, copying, distribution or use of the information containes in or attached to this message is STRICTLY PROHIBITED.  If you have received this transmission in error, please immediately notify us by reply e-mail at Clyde.romero [at] yahoo.com or  by telephone at (678 6419932)and destroy the original transmission and its attachments without reading them or saving them to disk.

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!

   

 

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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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