vipernicus42

iTrader: (4)

Hey Everyone!

So I took the whole damn carburetor assembly out again today, figuring I'd clean off the gasket and replace some hoses, to try and find the mysterious leak. I get the carb out, take out the gasket, and lo and behold, of course I'm faced with a shutter valve... But it's what's *around* the shutter valve (and was hiding under the gasket) that surprised me. A *real* rat's nest. Not the mess of tubes I had just finished labeling and putting aside, no there was a real, live (well, dead actually) rat's nest made of pink insulation, cedar branches and the like. Disposing of that, I also diagnosed a completely siezed shutter valve which was holding the flap-thingie at about half-open. A half-bottle of simple green and a wrench later, the area is clean and I'm now needing a new (well.. replacement) shutter valve.

Do you think this half-open valve could have been helping to cause the lack-of-idle problem I've been having?

I checked the hose that (I think it was FBII) reported helped his idle problem, the AAB one from the manifold... It's properly plugged just like my friend Eric's is... so I don't think *that* one is the cause of my problem. I'm gonna pick up another shutter valve on Friday, and replace all the vacuum hoses with new ones, a bit of non-solidifying high-heat silicon and some zip-ties all around to try and make sure I get rid of all the leaks.

Oh.. and one last little thing... My hot-start assist is being a bitch. Yes, I know both the shutter valve and the hot-start assist should be taken off like the AAB valve and just thrown as far away from my car as possible, but I found out that the local ministry safety-check guy knows about rotaries and is giving hell to non-stock setups..... When I plug the power connector to the hot-start assist, the little puller-motor starts up (even if the car's off) and just keeps going until I unplug it again...?? Any suggestions?

Jon

Pedestrian X

well i reall yodn tthink rats living in your carb would help your idle..

vipernicus42

iTrader: (4)

lol.. they weren't living *in* the carb... they were living on the top of the intake manifold and the block, under the shroud of the plastic gasket that extends 3 inches in each direction from the carb base

If I can ,I'll get a pic of the area, but my webspace is down for now.

Oh, and the carb itself is a replacement for the one that I took off earlier this year

Jon

rx7wannabeowner

hey!

well i hope it was the rat nest that was the prob! and with the shutter valve i hope it isn't to expensive!! ohh btw its joel! good luck!

vipernicus42

iTrader: (4)

Shutter valve *shouldn't* be too expensive because I just need a used replacement one. Eric has to go down to Rx7Heaven for his thousand-kilometre checkup on the rebuilt engine, so I figure I'll grab one from there. I know they overcharge an arm and a leg for used crap, but when you need a shutter valve, you *need* a shutter valve.

Somehow, I don't think the rats were actually causing any problems other than... being rats! They didn't clog anything with their nesting materials, and they weren't close to anything that could have been affected by their presence... Now that it's outta there though, it looks a *whole* lot cleaner!

The only way I'll know is when I replace the shutter valve, reinstall the carb and all the hoses, and try to fire it up!

Jon

FB II

so you blocked off your AAB? hmmm, i just replaced mine with good hose and it works wonderfully. i tried plugging it off once and the car wouldn't run.

vipernicus42

iTrader: (4)

Well my friend eric has his removed.... So his car has a bolt and a clamp closing off the tube from the manifold, and he's just covered the hole from the air cleaner. the other little black one that went to a "T" with one on the carb he replaced with a straight line where the "T" was... So I set mine up the same way figuring that it should work for me if it worked for him. And I also found the same setup in Rx7Carl and Pratch's Emissions Removal Tutorial

I *was* going to replace the shutter valve tomorrow, but things got sketchy today and I ended up with changing work shifts tomorrow... oh well, there's always next week..

Jon