Radiator Caps keep leaking
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Radiator Caps keep leaking
It seems I cannot find a radiator cap to fit my car, I was told the neck on my plastic radiator was worn so I installed a new radiator... I went thru 3 new caps and they all seem to leak??? Where can I get a good cap?
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Radiator Caps keep leaking
I just got one at autozone. 15.16 psi cap, no issues here.
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Radiator Caps keep leaking
The first half turn is easy but the 2nd half turn I have to push down on it.
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Car: 92 Camaro RS
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Axle/Gears: 10 Bolt 3.42 Posi
Re: Radiator Caps keep leaking
is it all stiff when it locks in on the 2nd turn?...mine is loose as a lot lizard
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Car: 92 Camaro RS
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Axle/Gears: 10 Bolt 3.42 Posi
Re: Radiator Caps keep leaking
Its a spectra radiator im wondering if only there caps fit the radiator
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Radiator Caps keep leaking
Im not sure, I cant remember the name of mine but I just went into AZ and asked for a cheep one for my car, its what they gave me and works like a charm. I know it should be tight though, it has to be sealed up nicely to hold in that PSI till it wants to go into the overflow tank.
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Re: Radiator Caps keep leaking
Hmmm, I tried one from Napa, AZ, and Advanced... napa and advanced sold the exact same one...autozones seemed better quality but they all leak.. I replaced the radiator because id been told it was worn out threads on the filler neck, but this new radiator is doin the same thing... is the outher resons for a radiator cap not being able to hold pressure and leak?
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Radiator Caps keep leaking
?? I cant think of any, I personally have never had a rad cap leak like that. You do mean its literly leaking out from arround the seal on the cap?
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Re: Radiator Caps keep leaking
Yes leaking out from under the rad cap and flowing down the neck, replaced a radiator today because a mechanic tole me the theads were worn out on the last one but this brand new one is doing the same thing, If the system was over pressured wouldnt it flow to the coolant overflow insted of seep down the neck?
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Re: Radiator Caps keep leaking
its not even heating up when It does it either It was at 190 when it did it, sometimes it will not leak until I turn the car off.
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Re: Radiator Caps keep leaking
Lets say hypothetically this is a gasket leak and combustion gasses were comming into my coolant system, whould this be a symptom? leaking radiator cap? I would think it would fill the overflow before leaking out a cap but I could be wrong. Anyone have experience with this?
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Re: Radiator Caps keep leaking
I checked out the rad cap that was currently on...it says 16V?? was i sold the wrong cap?
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Radiator Caps keep leaking
16v? 15-16psi is the cap needed. Im not sure what the V means. No matter how the cooling system is, be it bad or in good shape, any extra coolent that is pumped out will flow into the overflow tank. I had a bad heasd gasket back in the day and i was pumping out a good gallon of coolent into the overflow tank every 30 minuets. This was becasue the combustion gases pushed the coolent out.
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Car: 1991 Christine Z28
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Re: Radiator Caps keep leaking
Did you give the people who make the radiator a call? Try to get them to send you a cap or do something about their radiator. Good luck!
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Re: Radiator Caps keep leaking
16v? 15-16psi is the cap needed. Im not sure what the V means. No matter how the cooling system is, be it bad or in good shape, any extra coolent that is pumped out will flow into the overflow tank. I had a bad heasd gasket back in the day and i was pumping out a good gallon of coolent into the overflow tank every 30 minuets. This was becasue the combustion gases pushed the coolent out.
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