welding over the koyo radiator fill
#1
welding over the koyo radiator fill
I'm thinking about chopping off the radiator filler neck on my Koyo n flow and welding a piece of aluminum over it. it bothers me, does it bother anyone else? I was just looking at purchasing a radiator cap for it when I thought about this. I don't care for polished aluminum, I rather have my radiator unpolished if there was an option
#2
Trunk Ornament
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So the issue here is one that I ran in to recently. Your N-flow has the fill port with the overflow tube attached to it. If you eliminate the overflow, you'll have no place for the expanded coolant to go, and subsequently return when cooled.
So what I did to mitigate the issue was to drill a small passage under the fill cap on the thermostat housing, tap it, then thread in a small barb fitting to go to the overflow tank.
The other option is to get a pressurized overflow tank from another vehicle and make it the highest point in the system.
So what I did to mitigate the issue was to drill a small passage under the fill cap on the thermostat housing, tap it, then thread in a small barb fitting to go to the overflow tank.
The other option is to get a pressurized overflow tank from another vehicle and make it the highest point in the system.
#4
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you can get a Thermo neck "plastic piece" that has NO Overflow nipple and run a flat cap.(mazdatrix)
That way your rad With the overflow tube is the only area that has a spring loaded cap.
That way your rad With the overflow tube is the only area that has a spring loaded cap.
#5
wait, It's there a cap that would hold pressure so i don't need to cap the overflow nipple?
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#18
Instrument Of G0D.
iTrader: (1)
When youve got two options for filling points, why wouldnt you use the highest point?
Im just interested in this thread as i was running an s5 rad and s4 pump housing in my FB so also had the two fill points. The overflow on the rad was blanked. Never had a problem with it.
New setup am running the koyo N-flow for s5 and s4 pump housing again. Will probably just blank the overflow at the rad again.
Im just interested in this thread as i was running an s5 rad and s4 pump housing in my FB so also had the two fill points. The overflow on the rad was blanked. Never had a problem with it.
New setup am running the koyo N-flow for s5 and s4 pump housing again. Will probably just blank the overflow at the rad again.
#20
It would be a little much work too weld it, So I'm going to just run one cap higher pressure.
Like i wrote on my install thread, i probably should have just done a custom setup. The mounting is super easy on these cars. But I'm only saying that because i have access to a welder and have experience with minor fabrication.
Koyo is still nice to install just drilling my s4 brackets and chopping my stock shroud.
It just looks silly to have 2 filler necks,that i plan on going to a car show
Like i wrote on my install thread, i probably should have just done a custom setup. The mounting is super easy on these cars. But I'm only saying that because i have access to a welder and have experience with minor fabrication.
Koyo is still nice to install just drilling my s4 brackets and chopping my stock shroud.
It just looks silly to have 2 filler necks,that i plan on going to a car show
#23
Instrument Of G0D.
iTrader: (1)
I'm thinking about chopping off the radiator filler neck on my Koyo n flow and welding a piece of aluminum over it. it bothers me, does it bother anyone else? I was just looking at purchasing a radiator cap for it when I thought about this. I don't care for polished aluminum, I rather have my radiator unpolished if there was an option
Im in the same predicament, s4 thermohousing and s5 koyo n-flow, and wondering again what to do with the two pressure caps and the two overflows.
previous setup was a standard s5 rad with a filler cap but no overflow and the s4 housing with cap and over flow.
I rigged up some temporary clear hose to both overflows so i can see whats going on, but im not too sure about it - should the overflow hoses be completely full of coolant, or are the air pockets normal? My thinking is that the engine pretty much bleeds the air out itself, but then if the air is still in the hose, it will suck it back in too?
apart from that, overflow bottle level rises when warm and lowers when cold as normal, and zero heat problems so far.
#24
Information Regurgitator
How did you go with this?
Im in the same predicament, s4 thermohousing and s5 koyo n-flow, and wondering again what to do with the two pressure caps and the two overflows.
previous setup was a standard s5 rad with a filler cap but no overflow and the s4 housing with cap and over flow.
I rigged up some temporary clear hose to both overflows so i can see whats going on, but im not too sure about it - should the overflow hoses be completely full of coolant, or are the air pockets normal? My thinking is that the engine pretty much bleeds the air out itself, but then if the air is still in the hose, it will suck it back in too?
apart from that, overflow bottle level rises when warm and lowers when cold as normal, and zero heat problems so far.
Im in the same predicament, s4 thermohousing and s5 koyo n-flow, and wondering again what to do with the two pressure caps and the two overflows.
previous setup was a standard s5 rad with a filler cap but no overflow and the s4 housing with cap and over flow.
I rigged up some temporary clear hose to both overflows so i can see whats going on, but im not too sure about it - should the overflow hoses be completely full of coolant, or are the air pockets normal? My thinking is that the engine pretty much bleeds the air out itself, but then if the air is still in the hose, it will suck it back in too?
apart from that, overflow bottle level rises when warm and lowers when cold as normal, and zero heat problems so far.
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Jeff20B
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09-16-18 07:16 PM