85gsl2ndtimearound

I cant find this god damm vacume leak so time to rebuild the carb, remove the rats nest, install new intake gasket and o-rings and install the RB header. Just want to make sure i do it in the proper order. First off what should i do first take off the rats nest, remove the carb? What do i soak the carb parts in to clean them before rebuild? Do i need a heat sheild where the old one was? what can i use as a pre-silencer CHEAP even if only lasts a 6 months dont want to be too loud? What valve's/emmision parts can i remove from the carb (simplify)? I think thats it. Im kind of afraid of the whole process but once it is all done the knolage will be well worth it. One lat thing if you have any tips, warnings, or tool/parts needed please feal free all advice is welcome.
Thanks in advance Peter A. Trapino

Lee Lyons

finally...you have seen the light...this vacuum leak is always the best sign from above to spend more money on your car

85gsl2ndtimearound

Thanks for the advice. Ill try that.

Hades12

I would take off the rats nest parts. Pull the carb and then do the RB header, Clean the carb up and then reinstall.

RotorMotorDriver

iTrader: (1)

Well, if youre doing this all at the same time, heres what I would do. Rip every thing off. Just start unbolting crap until you have nothing left. Honestly.

Since youre installing the new intake manifold gasket, just unbolt the damn manifold from the block, then put it on your work bench to take the carb off. Much easier that way. Why new O-Rings? You can just plug the coolant passages so you never have to deal with them again. Get your self a couple quarters and shove em in there, or find some 80mm (I think?) freeze plugs at the auto parts store and use those. Then, slap on the new gasket, and bolt up the manifold. Since youre putting on a header and I assume not running a cat, you can get rid of the air pump and the ACV crap. Theres a thingy on the side of the manifold with two bolts and one nut holding it on, thats the ACV. Yank it off and build a block off plate to cover the hole with some 1/8" aluminum, or just get the block off place from Racing Beat. Same goes for the old air feed pipe from the manifold thingy to the cat. Two bolts hold the pipe on, just pull the pipe off, and either build or buy a block off plate for that. That will clean up your intake manifold a lot. As far as the carb itself, Im not too sure. I just did mechnical secondaries on mine, but never really messed wit it too much. PM RX7Carl or Sterling and ask them what you can clean up on it. To physically clean it, I would use chem dip type carb cleaner. Sold at auto parts stores in gallon size paint type cans with a little dipping basket inside. Works great IMO. Rats nest, well, thats another one I dont really know too well. I just yanked mine all off, and never worried about it too much. I wasnt running vacuum advance on the distributor I dont think, and I just had a little breather filter on the oil fill tube with no problems. If you dont have AC then you dont need the solenoid for that off the nest either. Theres a rats nest removal tutorial someone made and posted that would be a good read for you. As I said though, you may or may not need that AC solenoid, and I think they keep the purge valve too. I didnt when I did mine. Heres the link: http://maz_tutorials.ten15.net/ and heres a quote from the original thread with part numbers from Napa.
Anyway, I think thats all Ive got for now. Hope that helps some.

~T.J.

85gsl2ndtimearound

Thanks T.J. big help and much need inspiration. Would I need or is there a advantage to having a heat shield between intake and the header?

RotorMotorDriver

iTrader: (1)

I never ran one, I wouldnt worry about it.

~T.J.

Kentetsu

I have the RB system, and no heatshield. No issues so far....

While you are doing all of the work that Rotormotordiver suggested, you might want to send your carb out to Sterling for modification/rebuild. Then you'd have a monster!

85gsl2ndtimearound

Wish i could afford a Sterling carb. But money says Trapino built, Deising buy Sterling. One more noob question, well 2 more. Should i drain the coolant before removing the intake, and do i need t torq wrench?

RotorMotorDriver

iTrader: (1)

Yes, drain the coolant, or at least 2 gallons or so to get the level lower than that of the intake. I didnt, made a mess. Tried to catch it in a wide bucket thingy, didnt work. Torque wrenches are very nice, and ensure proper assembly of parts as to not warp things, but Ive made do without one for stuff like this. If you have access to one, use it. Maybe rent one? But, IMO, if youre tight on money, just go for it. Make sure theyre tight, just not overtight, lol. I didnt use one when I did mine, but now that I own one, I wouldve.

~T.J.

85gsl2ndtimearound

To Late T.J. thanks though. How do i post pics.