Over heating

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Jeroen
Posts: 2
Joined: Sun 20 Aug 2017, 19:23

Over heating

Post by Jeroen » Sun 20 Aug 2017, 19:30

Hi all,

I am new to this site.
I purchased a 383 Chrysler v8 and had it fitted to a Dodge D500 truck.
It goes well, but over heats.
New 4 core radiator,
New water pump,
Anti freeze,
Mercedes bens Pull fan (electric)
Fushed the cooling system many times.

This is the third attemt to sort out the cooling.
I have spent R30k on this already.
Any advice, I am despirate.

Regards,
Jeroen

User avatar
ZA Perana
Posts: 7289
Joined: Sun 15 Jul 2007, 18:01
Location: Cape Town

Re: Over heating

Post by ZA Perana » Sun 20 Aug 2017, 20:00

Jeroen wrote:
Sun 20 Aug 2017, 19:30
Hi all,

I am new to this site.
I purchased a 383 Chrysler v8 and had it fitted to a Dodge D500 truck.
It goes well, but over heats.
New 4 core radiator,
New water pump,
Anti freeze,
Mercedes bens Pull fan (electric)
Fushed the cooling system many times.

This is the third attemt to sort out the cooling.
I have spent R30k on this already.
Any advice, I am despirate.

Regards,
Jeroen
Have you had the cooling system pressure tested? Head gasket leak perhaps? What does the oil look like?

Does it overheat on the road or in traffic?
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Wait not for tomorrow to do what can be done today, live each day for one knows not what the next day may hold.

User avatar
ters
Posts: 4189
Joined: Thu 19 Jan 2012, 19:39
Location: Pretoria

Re: Over heating

Post by ters » Mon 21 Aug 2017, 07:39

Welcome Jeroen!

Some more info like ZA suggests please....high heat whilst idling in traffic or driving? Does the temp return to normal when you start driving again? Ignition timing? Thermostat fitted? Which area do you reside?

Ters.
When it comes to the wife its easier to beg for forgiveness than ask for permission!
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Jeroen
Posts: 2
Joined: Sun 20 Aug 2017, 19:23

Re: Over heating

Post by Jeroen » Mon 21 Aug 2017, 10:34

Hi Guys,

Thanks for replying so soon.

Pressure test done, Thermostat removed. It was worse with it in.

It mainly over heats on the open road.

In town, I have to drive with the fan on.

On the open road, if the fan is on or off, it over heats.

The temp returns to normal when I free wheel down a hill, and over heats when I climb a hill.

Chat soon.

Jeroen

User avatar
Mopar 440
Posts: 1606
Joined: Fri 20 Apr 2012, 14:55
Location: Roodepoort, Gauteng, South Africa.

Re: Over heating

Post by Mopar 440 » Mon 21 Aug 2017, 12:27

Could be incorrect head gaskets, or someone modified the existing (ie, made the steam hole slit to big), or they used some form of sealant on the head gaskets that compressed and blocked the steam holes.
(O O {]{]{]||[}[}[} O O)

User avatar
ters
Posts: 4189
Joined: Thu 19 Jan 2012, 19:39
Location: Pretoria

Re: Over heating

Post by ters » Mon 21 Aug 2017, 17:16

Jeroen wrote:
Mon 21 Aug 2017, 10:34
Hi Guys,

Thanks for replying so soon.

Pressure test done, Thermostat removed. It was worse with it in.

It mainly over heats on the open road.

In town, I have to drive with the fan on.

On the open road, if the fan is on or off, it over heats.

The temp returns to normal when I free wheel down a hill, and over heats when I climb a hill.

Chat soon.

Jeroen
See the Mopar brotherhood commenting ;) .

Which area are you from Jeroen? We (Mopar Owners Group) have representatives in all provinces to assist.

Ters.
When it comes to the wife its easier to beg for forgiveness than ask for permission!
AMC Forum now accessible on Tapatalk! http://www.tsclassicclinic.co.za/

User avatar
ZA Perana
Posts: 7289
Joined: Sun 15 Jul 2007, 18:01
Location: Cape Town

Re: Over heating

Post by ZA Perana » Mon 21 Aug 2017, 21:37

Sounds like it could be timing related too.
Alfa GTV 3.0
Ford Capri Perana V8
Chevy Lumina Supercharged

Wait not for tomorrow to do what can be done today, live each day for one knows not what the next day may hold.

Arno
Posts: 10
Joined: Thu 05 Aug 2010, 12:19

Re: Over heating

Post by Arno » Tue 22 Aug 2017, 09:37

Jeroen wrote:Hi all,

I am new to this site.
I purchased a 383 Chrysler v8 and had it fitted to a Dodge D500 truck.
It goes well, but over heats.
New 4 core radiator,
New water pump,
Anti freeze,
Mercedes bens Pull fan (electric)
Fushed the cooling system many times.

This is the third attemt to sort out the cooling.
I have spent R30k on this already.
Any advice, I am despirate.

Regards,
Jeroen
Hi Jeroen,
I run a metal fan from the waterpump (mechanical) on the same motor and my temp never goes above 90 degrees.
Maybe invest in a flex fan, spacer, and fabricate a radiator shroud. The fan should portrude partly out of the shroud to be completely effective.

I have tried the electric fan setup on my 383 as well, but did not have much joy.

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Rock out with your Glock out...

wanegofast
Posts: 82
Joined: Wed 24 Sep 2014, 13:56
Location: CAPE TOWN

Re: Over heating

Post by wanegofast » Tue 22 Aug 2017, 10:21

hi Maybe consider the truck radiator having to much flow at rpm water does not get enough time to cool just a thought
i had same problem with my car at adle and slow driving its fine when i pick up it over heats on hi way.
car had a rad that looked more like inter cooler core. changed that and problem solved

Arno
Posts: 10
Joined: Thu 05 Aug 2010, 12:19

Re: Over heating

Post by Arno » Tue 22 Aug 2017, 12:16

Arno wrote:
Jeroen wrote:Hi all,

I am new to this site.
I purchased a 383 Chrysler v8 and had it fitted to a Dodge D500 truck.
It goes well, but over heats.
New 4 core radiator,
New water pump,
Anti freeze,
Mercedes bens Pull fan (electric)
Fushed the cooling system many times.

This is the third attemt to sort out the cooling.
I have spent R30k on this already.
Any advice, I am despirate.

Regards,
Jeroen
Hi Jeroen,
I run a metal fan from the waterpump (mechanical) on the same motor and my temp never goes above 90 degrees.
Maybe invest in a flex fan, spacer, and fabricate a radiator shroud. The fan should portrude partly out of the shroud to be completely effective.

I have tried the electric fan setup on my 383 as well, but did not have much joy.

Sent from my STV100-4 using Tapatalk
Also make sure you are running a thermostat in the system. You can get the proper thermostat at All American Auto, or in a pinch, use a Nissan 1400 thermostat

Sent from my STV100-4 using Tapatalk

Rock out with your Glock out...

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