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Strange coolant problem. 

 

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 Post subject: Strange coolant problem.
Posted: Sat Apr 24, 2010 4:29 pm 
Getting Side Ways
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Age: 26

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Ride: 92 EB s

Location: DORRIGO
NSW, Australia

Ok so my car has been "leaking" coolant at a rate of say 500ml per week.
The reason I put "leaking" is that sometimes after I drive it the coolant has gone from say half full to just above the full line.
I can see coolant dribbles down onto the transmission.
Why or how does it keep filling up.
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 Post subject: Re: Strange coolant problem.
Posted: Sun Apr 25, 2010 1:43 pm 
Getting Side Ways
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Ride: 5.0lt NF /351 ZD Fairlane

Location: Wattle Grove
NSW, Australia

If your checking the coolant b4 you drive then after it's warmed up the level will increase as the coolant expands when hot.

 

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 Post subject: Re: Strange coolant problem.
Posted: Sun Apr 25, 2010 1:51 pm 
Getting Side Ways
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Ride: AU falcon

Location: toongabbie
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she will be right...has a fan, air cooled

 

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 Post subject: Re: Strange coolant problem.
Posted: Sun Apr 25, 2010 3:29 pm 
Getting Side Ways
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Age: 26

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Ride: 92 EB s

Location: DORRIGO
NSW, Australia

True. Why did I forget that. Doiyyy.
Another question. Im running the standard thermostat. 95degree of something.
Everytime I drive down my road I get to a certain point the temp. Gauge gets to the l in normal then goes down no where it usually sits.
Would a 83degree thhermostat fix this?
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 Post subject: Re: Strange coolant problem.
Posted: Sun Apr 25, 2010 4:31 pm 
Getting Side Ways
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Age: 55

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Ride: 5.0lt NF /351 ZD Fairlane

Location: Wattle Grove
NSW, Australia

I would think that a cooler thermostat would make it run further down the gauge, i put in a 70 something and it wouldn't get up to the area at all so i put a hotter one - i think 80 something and it just sits on the L but if it has a hot thermostat it would only make it worse by putting a cooler one in unless its not working at all.

 

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 Post subject: Re: Strange coolant problem.
Posted: Sun Apr 25, 2010 10:50 pm 
Getting Side Ways
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Age: 26

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Ride: 92 EB s

Location: DORRIGO
NSW, Australia

I just think it takes to long to open.
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 Post subject: Re: Strange coolant problem.
Posted: Mon Apr 26, 2010 12:35 am 
Getting Side Ways
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Ride: EL F100 CAPRI XR EF

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Location: brighton
SA, Australia

with the coolant leak onto the transmission, theres a welsh plug at the back of the motor that can leak, also the metal heater hose pipes run across the back too. might be worth checking. but it doesnt explain how the coolant level is going back up again????

might be worth replacing the thermostat if u havent already, might be a sticky one
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 Post subject: Re: Strange coolant problem.
Posted: Mon Apr 26, 2010 12:38 am 
Getting Side Ways
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Ride: EA SVO, AU2 Forte

Location: Bendigo
VIC, Australia

leaking onto the trans? could be the back of the head gasket gone?

 

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 Post subject: Re: Strange coolant problem.
Posted: Mon Apr 26, 2010 10:42 am 
Getting Side Ways
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Ride: 92 EB s

Location: DORRIGO
NSW, Australia

Yea I think its the head gasket.bugger.
Thermostat is fairly new.
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 Post subject: Re: Strange coolant problem.
Posted: Mon Apr 26, 2010 12:50 pm 
Getting Side Ways
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that'll explain the temp going up to L and then dropping quickly. my first car, a Holden Camira, did the same thing. but only once just after start up. and it had a blown head gasket. but i just sold it for $100 and bought a XF Fairmont

 

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Weekend driver: EA SVO AU motor. Built BTR. TCE 2800 stall. T76 turbo. Locked diff. On E85. approx 320rwkw. 11.5 @121mph

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 Post subject: Re: Strange coolant problem.
Posted: Mon Apr 26, 2010 1:25 pm 
Getting Side Ways
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Age: 26

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Joined: 4th Sep 2009

Ride: 92 EB s

Location: DORRIGO
NSW, Australia

How does a blown gasket cause that tho?
I still think its the thermo.
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 Post subject: Re: Strange coolant problem.
Posted: Mon Apr 26, 2010 1:39 pm 
Getting Side Ways
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Age: 28

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Ride: EA SVO, AU2 Forte

Location: Bendigo
VIC, Australia

87SIlude wrote:
How does a blown gasket cause that tho?
I still think its the thermo.



does it run a little rough on cold start and then sort itself out?

 

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Daily driver: AU2. 5 speed. 19" FG luxos. Full exhaust. Lowered. AU3 XR leather interior, converted to full power windows. 3.45 LSD. IN THE FUTURE: Tickford 6
Weekend driver: EA SVO AU motor. Built BTR. TCE 2800 stall. T76 turbo. Locked diff. On E85. approx 320rwkw. 11.5 @121mph

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 Post subject: Re: Strange coolant problem.
Posted: Mon Apr 26, 2010 1:54 pm 
Getting Side Ways
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Age: 26

Posts: 1109

Joined: 4th Sep 2009

Ride: 92 EB s

Location: DORRIGO
NSW, Australia

Nah runs fine.
1st gear change it seems a bit strange. But nothing out of the ordinary.
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 Post subject: Re: Strange coolant problem.
Posted: Tue Apr 27, 2010 6:56 pm 
Getting Side Ways
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Age: 55

Posts: 1566

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Ride: 5.0lt NF /351 ZD Fairlane

Location: Wattle Grove
NSW, Australia

All engines temp goes up while thermostat is closed then when it opens the temp drops as the system equalises with the now warm coolant from the engine with the cool water from the radiator.

 

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ZD build thread under construction at post1136180.html#p1136180

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 Post subject: Re: Strange coolant problem.
Posted: Tue Apr 27, 2010 7:02 pm 
Getting Side Ways
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Age: 26

Posts: 1109

Joined: 4th Sep 2009

Ride: 92 EB s

Location: DORRIGO
NSW, Australia

Went and got some seal-up by cargo product today. Its supposed to stop leaks in gackets radiators hoses and cylinger heads. Seeing its only a small leak I hope it'll work.
See how it goes tomorro.
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