ohhhhhh, I've got the TVSV blues

[arbskynxnex]

Swapping a carb out today and I snapped off the 'N' port on my TVSV. And yes, it was my fault and I'm mad at me. Anyone know if it will run (like crap or otherwise) long enough so I can pick one up at the junkyard. Or, more importantly will it cause the car to explode or something like that?

[takza]

Buy some epoxy putty and after using to sandpaper to rough the surfaces some...epoxy it back on leaving enough room for the vac tube? Might need to use a small zip tie to hold it on there?

[arbskynxnex]

I scored 2 today at the junkyards. One was cracked, but not broke off on the N port and the other one was fine until sometime between leaving the junkyard and getting to my parents place to put the car back together. I threw some JB weld on the cracked port, let it sit while I threw the new (junkyard) carburetor on. Fired it up and everything ran smooth, so I did the same with the other one. I think I'm going to stockpile some of these since I'm known far and wide for my hand slipping and breaking hard to find parts on cars.

[Petros]

the plastic gets brittle and they are easily broken even when not miss-handled. About half of the old TVSV appear not to function as required per the FSM test anyway, but you can hardly tell when driving it. Usually if you just block off any vac loss it will run fine without it.

You can also completely by-pass the unit, connect the distributor vacuum line directly to the vac source it draws from through the TVSV. The TVSV retards the vac advance until the engine gets hot, than allows normal vac operation of the distributor for emissions reasons. By-passing the TVSV so it operates without the temp limiting control will give you better fuel economy and lower your chance of burning the exhaust valves.