Putting in new vaccum hoses and I broke this...

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Sep 6, 2003
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Austin, TX until 8/04 then Chicago, IL until 6/11
Anyone know what this is and where I can get another one.
Also, am I hurting my cruiser by driving with this peice missing?



sorry for the crappy pics. My digital is dead and I only have my phone.

It screws in just under the thermosate housing.
I was twisting the hose off when it broke off. I was alomset finished and thought I had actually made it through workin on my girl without breaking something.




thanks for your help,
Patrick
 
I really can't be sure from those pics, but it looks like a BVSV. It probably won't hurt to drive it with this thing broken, but you'll likely either have a vacuum leak or an emission component not working.

A vacuum leak could cause the engine to run poorly, so plug up the hoses that go to the BVSV until you can shell out for a new one..
 
Scroll down a few posts on this thread, and you'll see some diagrams that will help figure out what's broken.

https://forum.ih8mud.com/showthread.php?t=41482&highlight=vacuum

As for replacement - suggest cruiserparts.net or cdan or a dealer. Nix99 could also work. A lot of the little emissions pieces were used a a wide variety of toyota cars/trucks from the 80's.
 
I've epoxied them together successfully. Super-glue them together first, then use epoxy sparingly outside after.

Or slick up a couple round toothpicks with grease or Vaseline (wipe of excess) & stick in holes to hold them aligned before epoxying.

New ones were about $30 a couple years ago from the stealer IIRC.
 
I did the exact same thing when i replaced my vac hoses. I pruchased an OEM one for next to nothing. It was easy to install. No need to drain the coolant. Just unscrew the old one and screw the new one in quickly so you don't loose too much coolant.

Those damn plastic piecses don't stand up to the heat.

I dorove mine over 100 miles before I replaced it. I could not tell a difference.
 
Been driving mine for 2 years with it broken and plugged. Ordered one from CDAN, but I ordered the wrong one, I need to order the other one and I'll replace them both at the same time.
 
Thanks for all the help. I'm trying to get my girl running as well as I can. I've got a 40 mile one way commute to make everyday for the next 6 weeks and I'm hoping to get the best mileage possible.
Will this affect my mileage in anyway?

Thanks again everybody.

Patrick
 
cruiserhunter said:
Thanks for all the help. I'm trying to get my girl running as well as I can. I've got a 40 mile one way commute to make everyday for the next 6 weeks and I'm hoping to get the best mileage possible.
Will this affect my mileage in anyway?

Maybe. It depends what the valve controls. I don't have an '86 or an emissions manual for an '86, so I can't tell you for sure.

I think one of the BVSVs controls temp dependent choke operation and another affects the vacuum advance. Both of those could hurt your mileage, depending on what they do (or don't do) in closed operation, open operation, short-circuit state, etc..
 
djawahir or anyone smarter than me,

What is the vacuum advance and what does it do? Should I plug it while I order another from cdan?

Thanks for the advice
Patrick
 

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