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Subway's GT: Time to close my legs, it smells everywhere

Re: Subway's GT: Top Swap Parts Are In

BillBoost37 said:
I'm with Scott...didn't see the Sc idler stand or the specific bolts that go with it. They are a slightly different thread like 1.25 vs 1.50. Personally........... I'd drop those heads off to the machine shop, have them tanked, fluxed, painted and assembled with a valve job. If you wanted to plan ahead, have the seats machined to 1.800 so that you had the correct pressures on with aftermarket springs.
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Everything will be done myself. I'm not spending more money by dropping it off at the machine shop. I'm lapping the valves and putting new valve seals on. After I clean down the heads, I'll check the level. I'll take the valves out and wire wheel the top of the head to get it all clean.
 


Re: Subway's GT: Top Swap Parts Are In

Not sure why GM decided to put an entire stem right in the opening of the TB. Such and air restriction.



But I got it all clean and was able to free it up!





 


Re: Subway's GT: Top Swap Parts Are In

Scottydoggs said:
so the butter fly moves now? you soak it, or just f with it till if moved?
Click to expand...

Just sprayed a lot of brake clean in it and let it soak for a minute or two, and took a pliers with rubber ends and hit the valve while pushing on the spring thing on the outside and it eventually broke loose.
 
Re: Subway's GT: Top Swap Parts Are In

he means a newer year tb and maf, you change the maf file in the tune to the new maf, and poof.
 


Re: Subway's GT: Top Swap Parts Are In

Drained the oil out of the S/C, was gonna separate the snout, but ran out of time. I'll do that this weekend.

Also cleaned more of the TB, scraped the bottom of the S/C clean, and blew compressed air everywhere to clean it all. Mainly in coolant ports and such.
 
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Re: Subway's GT: Top Swap Parts Are In






Took some effort, but it's off. Someone has been in here before, which makes sense as I was told it has been rebuilt.
 
Re: Subway's GT: Top Swap Parts Are In

Nifty, never seen the inside of one. So, what do you look at to tell what's been rebuilt? (noob here, lol)
 
Re: Subway's GT: Top Swap Parts Are In

I would assume a true rebuild has new bearings pressed in the case and greased. Probably new snout seals / bearings
Also the coupler is replaced.


What is shocking is there is a zzp coupler installed (green) and apparently it's already shot. OP said there is a lot of play in it.
I've seen OEM couplers tight as can be with over 120k miles on them.

Maybe ill go back to ordering OEM ones
 


Re: Subway's GT: Top Swap Parts Are In

Interesting. Car it came off of had 180k, a 3.4" and no supporting mods (unless you count straight-piped with huge rice-y muffs out back and a K&N CAI)...., so ya never know. It felt more solid than my 200k+ S/C, I guess I just did what I was told and took a video and it seemed good, lol.

But, like, how can you tell the coupler is shot?
 
Re: Subway's GT: Top Swap Parts Are In

When you jerk the pulley back and forth by hand, you shouldn't feel any play.

not really a big deal at all. Changing a coupler is just as easy as changing your plugs and oil.
 
Re: Subway's GT: Top Swap Parts Are In

Literally place your hand on the pulley and snap it back and forth. You'll know
 
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