[Tigers] Overheating

[David Sosna]

Hi Joel:

I haven't got any thoughts that'll help with your problem, but having 
had my own Tiger heartbreak, I CAN offer my sympathy.

Hopefully someone on the list can offer something a bit more practical. :-)

Best Regards

David Sosna


On 04/19/2018 07:51 AM, Joel Martin via Tigers wrote:
>
> Well after 8 years and a gazillion dollars, I am officially completely 
> discouraged.I have the hardtop yet to put together, fit the new 
> Robbins top which after stretching in the sun, still is about 2 inches 
> from being even close to fit and wheel alignment.Toneau cover and top 
> boot covers look good though.
> I have had my radiator, not an original tiger radiator, re-cored, 
> rebuilt 289 engine – done by machine shop with .30 pistons, hipo 
> heads, arp bolts, new values, oil pump, gaskets etc with new SS water 
> pump, nothing left untouched.
> Generator rebuilt, voltage regulator replaced multiple times, rebuilt 
> AMP gauge – this worked for a few months.Replaced generator with 
> alternator, last week, 100 amp American made – older CAT 1 piece 
> bracket and a Jaeger volt gauge – looking good on this front.
> 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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>
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