BVSV installation (top and bottom)

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WABISABIFJ60

WABISABIFJ60

Joined
May 6, 2019
Threads
4
Messages
42
Location
Hayward, CA
Apologies in advance if this has been addressed a multitude of times, but how does one go about replacing a BVSV. I broke one of the nipples that is supposed to be purple one (top) then noticed that the bottom one had both nipples broken off and still stuck into the vacuum hoses they were connected too. I ordered both used ones and they should be here in about a week.

Will I need to drain the radiator in order to install?

Thanks in advance for the information!
 
Drain a little bit out of the radiator. You don't need to drain the whole thing. Just enough to lower the coolant level below the radiator intake hose fitting.
You'll need a turkey baster or something to suck the coolant pooling in the thermostat housing. The new BVSVs should be installed with liquid thread sealant (Permatex) not RTV and the threads in the housing need to be clean and devoid of any residual coolant.

It's a tight fit to get in there. It might be easier to remove some stuff to gain access
 
OSS said:
The new BVSVs should be installed with liquid thread sealant (Permatex) not RTV and the threads in the housing need to be clean and devoid of any residual coolant.
Click to expand...

Thanks for this. I always thought the new BVSVs came with some type of thread sealant on them from the factory. Sounds like that's not the case so thanks for the clarification.
 
OSS said:
Drain a little bit out of the radiator. You don't need to drain the whole thing. Just enough to lower the coolant level below the radiator intake hose fitting.
You'll need a turkey baster or something to suck the coolant pooling in the thermostat housing. The new BVSVs should be installed with liquid thread sealant (Permatex) not RTV and the threads in the housing need to be clean and devoid of any residual coolant.

It's a tight fit to get in there. It might be easier to remove some stuff to gain access
Click to expand...

Thats what I was hoping for! Thanks again OSS! Lastly, what is this "Burping the radiator" refer too? <----read this in another thread!
 
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If there's factory applied thread sealant on a new BVSV then additional thread sealant wouldn't be necessary. I never purchased a new one so I wasn't aware they came with sealant already applied.

Any time the cooling system is drained, air gets into the system. Bubbles will form (obviously) and can get stuck in places in the 2F head. Burping refers to trying to purge the air out. There's lots of info on this site describing methods.
 
OSS said:
If there's factory applied thread sealant on a new BVSV then additional thread sealant wouldn't be necessary. I never purchased a new one so I wasn't aware they came with sealant already applied.
Click to expand...

I am not sure if they are. I just ordered one so I'll see when I get it. Pictures I have seen of look like they do to me but not sure:

IMG_9717_1024x1024.jpg
 
So I've been reading through most of the Forums that are about the "BVSV" valves and haven't come across a viable replacement for the lower Pink BVSV. The Violet one can be replaced by the Blue one as they share similar temperature ranges. Is there a way to bypass the pink BVSV valve and still pass smog?
 
A smog tech will have no clue what the pink VSV is used for (Choke Opener). But if he's got a keen eye and doesn't like you or he's paranoid, one missing vacuum hose is enough to fail the visual test.
I say jerry rig a fix as tidy as you can and get a pre-test at the shop you'll take it to. It's up to the tech to shrug off an odd vacuum hose arrangement or not. Every shop is different.

Pro tip: take the cruiser to the cheapest, worst part of town to get a smog test. They're used to passing old worn out vehicles that are held together with gum and tape.
 
OSS said:
I say jerry rig a fix as tidy as you can and get a pre-test at the shop you'll take it to. It's up to the tech to shrug off an odd vacuum hose arrangement or not. Every shop is different.
Click to expand...

I just saw the other day where a guy used some T-fittings that were the same size as the hose fittings on the BVSV to repair them. He cut the T-fittings so he had a little a piece about the same length as the normal BVSV nipple. Then he drilled holes slightly bigger than where the hole for the broken nipple sits. Then he could fit the T-fitting parts in the holes in the BVSV and glue them in place. Then you just put your hoses on those T-fitting bits. And poof, new BVSV nipples. He actually used this method to make the BVSV work but if just trying to pass visual, you can just get something in there to make the hoses look connected. HTH.
 
Gretsch said:
I just saw the other day where a guy used some T-fittings that were the same size as the hose fittings on the BVSV to repair them. He cut the T-fittings so he had a little a piece about the same length as the normal BVSV nipple. Then he drilled holes slightly bigger than where the hole for the broken nipple sits. Then he could fit the T-fitting parts in the holes in the BVSV and glue them in place. Then you just put your hoses on those T-fitting bits. And poof, new BVSV nipples. He actually used this method to make the BVSV work but if just trying to pass visual, you can just get something in there to make the hoses look connected. HTH.
Click to expand...

Whoa...that's cool. Would you happen to have images or forward the images if you come across them again? That would be a fix I wouldn't mind trying. These valves cost a pretty penny and if I can fix them where they can still work! Well that's a plus for sure!
 
I don't recall there being any pics....just a description.

I think this is it here:

forum.ih8mud.com

Adding HAC Back Into Desmogged 2F

So @4Cruisers, would you have any idea if I could use BVSV2 for this? BVSV1 on mine has the nipples broken off but BVSV2 is good. I believe these two BVSVs operate at different temperatures so might be asking for rough idle during warm up cycle. I'd have to check, but I think the temperature...
forum.ih8mud.com forum.ih8mud.com

I thought I saw somewhere where a guy used the T-fitting ends I mentioned but I'll have to locate it.

Edit: The T-fitting idea came from here I think:

forum.ih8mud.com

fj60 purple bvsv

forum.ih8mud.com forum.ih8mud.com

Sorry no photos on those but lots of Toyota vehicles have those BVSVs so I am sure there are repair pics somewhere. The description is good enough to be able to figure it out I think. HTH.
 
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Gretsch said:
I don't recall there being any pics....just a description.

I think this is it here:

forum.ih8mud.com

Adding HAC Back Into Desmogged 2F

So @4Cruisers, would you have any idea if I could use BVSV2 for this? BVSV1 on mine has the nipples broken off but BVSV2 is good. I believe these two BVSVs operate at different temperatures so might be asking for rough idle during warm up cycle. I'd have to check, but I think the temperature...
forum.ih8mud.com forum.ih8mud.com

I thought I saw somewhere where a guy used the T-fitting ends I mentioned but I'll have to locate it.

Edit: The T-fitting idea came from here I think:

forum.ih8mud.com

Adding HAC Back Into Desmogged 2F

So @4Cruisers, would you have any idea if I could use BVSV2 for this? BVSV1 on mine has the nipples broken off but BVSV2 is good. I believe these two BVSVs operate at different temperatures so might be asking for rough idle during warm up cycle. I'd have to check, but I think the temperature...
forum.ih8mud.com forum.ih8mud.com

Sorry no photos on those but lots of Toyota vehicles have those BVSVs so I am sure there are repair pics somewhere. The description is good enough to be able to figure it out I think. HTH.
Click to expand...

Noted. Thanks for the info all the same! Every little fix helps!
 
I have no idea how sturdy a fix like that would be. But if all you are trying to do is pass visual, then might be worth a shot.
 
WABISABIFJ60 said:
So I've been reading through most of the Forums that are about the "BVSV" valves and haven't come across a viable replacement for the lower Pink BVSV. The Violet one can be replaced by the Blue one as they share similar temperature ranges. Is there a way to bypass the pink BVSV valve and still pass smog?
Click to expand...

city racer has a repop Pink.
www.cityracerllc.com

Pink BVSV for Land Cruiser FJ40 FJ60

Pink BVSV / Bimetal Vacuum Switching Valve for: '79 and later Land Cruiser FJ40 All years of Land Cruiser FJ60 Reproduction of OEM part # 90925-05046. Discontinued by Toyota. Needed for passing smog.
www.cityracerllc.com
 
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