Rad drain valve
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Tuned
Joined: Apr 2010
Posts: 479
Likes: 34
Rad drain valve
Hello everyone,
I need to replace my degas bottle. The last time I flushed the coolant I noticed that the external head of the plastic drain plug in the rad was gone. It's not a big deal as it still comes out with the hex internal.
does anyone know of a better replacement? Fumoto?
I need to replace my degas bottle. The last time I flushed the coolant I noticed that the external head of the plastic drain plug in the rad was gone. It's not a big deal as it still comes out with the hex internal.
does anyone know of a better replacement? Fumoto?
Hotshot
Joined: Dec 2014
Posts: 17,827
Likes: 3,111
From: Jersey Shore
With the inside hex, the wall is thin under the head. The head of the valve typically breaks off from stiction of the o-rings (excessive torque), or if you tightened the valve as though it seals better if torqued. The valve seals by the o-rings, so it doesn't have to be tight. I went through this on our test vehicles because some guys would overtighten them, and we had to get replacements.
In our SOP maintenance book, I wrote in to tighten the outer hex lightly until the head lightly touched the radiator, but always remove the valve by the inner hex with an 8mm Allen key or Allen socket. This way the high torque removal uses the stronger inner hex area.
In our SOP maintenance book, I wrote in to tighten the outer hex lightly until the head lightly touched the radiator, but always remove the valve by the inner hex with an 8mm Allen key or Allen socket. This way the high torque removal uses the stronger inner hex area.
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Tuned
Joined: Apr 2010
Posts: 479
Likes: 34
OE one ordered. Thanks.
it's kind of a weak ( literally) design. My 89z24 has a wing nut style and it's never let me down.
I have no idea where the outer part on the 6.0 went. Oh well. All will be solved for 5 dollars.
it's kind of a weak ( literally) design. My 89z24 has a wing nut style and it's never let me down.
I have no idea where the outer part on the 6.0 went. Oh well. All will be solved for 5 dollars.
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EStrange
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Apr 12, 2021 09:48 PM
