[Tigers] [EXTERNAL] Tiger Overheating

Sat Apr 21 08:34:05 MDT 2018

How old is the fan belt?

How hot does it get if you take the thermostat out?

Sent from my iPhone

On Apr 21, 2018, at 10:28 AM, michael king via Tigers <tigers at autox.team.net<mailto:tigers at autox.team.net>> wrote:

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Joel,

Lets go through a few basics. A ford Windsor running at 200 is not overheating, its warm. That said we all prefer them running lower than that in general.

It is interesting that it doesnt cool down once on the move. That said a stock cooling system in correct condition should handle normal driving.

A few basic things to check:
*Is the thermostat opening fully allowing water to flow correctly?

*are all the hoses and bypass hoses connected? None missing or incorrectly routed?

*is the water flowing freely through heater core?

( side note your heater valves were not built to do 16psi so no surprise they failed)

*Does the car spit water out when it indicates its overheating? What happens if you start it and leave idling in drive? how long before temp rises.. How long till into 200 s?

*What is the coolant level in the header tank and what coolant are you running?

*have you got a filter in the cooling system to see if you have any sedimemt from the block/ system? Is the collant clean and clear?

* do you have the metal spring in the bottom radiator hose to stop the hose compressing and blocking flow?

* have you checked the engine fan is installed the correct direction? ( not back to front)

*have you checked the electric fans are installed in the correct direction?

*have you made sure the fans are wired to spin in correct rotation?

For all above stand infront of car and turn fans on.. Make sure no breeze is coming forward from the grill opening. (dont ask how i know that, but it solved my mystery overheating!)

*What are the timing and mixtures like on the car?
Are the plugs indicating you are running lean?
*have you checked timing?

*Is the radiator cap seating correctly?

*can you see any coolant leaks around the water pump or thermostat housing?

On Fri., 20 Apr. 2018, 20:47 Joel Martin via Tigers, <tigers at autox.team.net<mailto:tigers at autox.team.net>> wrote:

Overheating defined as greater than 210 at idle or running.  No expansion tank. Temporary manual temperature gauge installed until sort things out, if ever – did not feel could trust the electric sending unit or rebuilt gauge at this point. Things tried:

  1.  New copper core, I believe, not aluminum – totally taken advantage of by this individual here, so no confidence in job performed.
  2.  16 pound radiator cap – have used the SS 7 pound one as well
  3.  160 degree thermostat and 180 as well – 160 currently installed
  4.  14” 6 blade plastic fan
  5.  Fan spacer made to move fan with 1” of radiator fins.
  6.  Custom made fan shroud
  7.  Spacer in upper radiator hose to slow down flow – have put this in and out multiple times, no real difference – currently installed
  8.  2 – 10” pusher electric fans with relay and in line 30 amp fuse, last thing I did, no help.

Oh and the SS heater control valve lasted 80 miles.  Moss Motors valve lasted about a week, the second Moss one leaking after about 10 minutes from cold start up.  All 3 diaphragms split and blew coolant all over.  Received credit and currently have plugged both hoses going in and out of heater valve so I could leave valve in place and look correct till overheating and better parts solution presents itself.

Here how things went from cold start up yesterday – about 72 degrees outside.
Starts on the first turn of the key.
Let idle until electric choke brings to 950 rpm.
Off we go, about 4 miles of running at 190.
Stop at stop light – turn on electric fans, temp up to 200 really quickly.
Running at 60 mph for another 10 miles at 200 degrees
Pull into gas station that is suppose to have ethenal free gas for new weed eater – not there 30 seconds – temp up to 210 with electric fans on.
Temp stays at 210 the next 12 miles or so – tried fans on and then off – no difference.
Next stop light, about 1.5 minutes, temp goes to 220, fans on
Stays at 220 until I can get home.
Blowing coolant, slight coming into house – not sure for how long.
Fans on, hood up – heat soak up to 230 before coming back down.

My last observations:  temp goes up amazingly fast when stopped at idle and does not come down with electric fans running or driving.  At one point, the temp used to drop when driving back to 195/200, not sure when this stopped.

I have had 3 different mechanics look at this with me to this point, no more recommendations from them unless try an aluminum radiator.

I am completely stumped at this point and beyond disappointment and discouraged.
So, team Tiger owners – ideas, recommendations or just put the car cover on it and leave it for the next person?

 Joel Martin

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