Pulled plenum...lots a ??'s

[Pete]

Originally Posted by 32valvZ

Ok, heres what I know from the previous owner. The plug wires were replaced in May (ish) 07 They look really good. Also, a few weeks ago, I checked the injectors with an ohm meter while hot. They all specd out between 13.7 & 14.0 ohms.......should I replace them anyway? The 2 hoses on the breather box are really hard...does that mean replacement?

Were the wires replaced with OE used ones(w/LT5 on them).

Again check the gap on the plugs i had an issue where they were gaped too much with one of those snake formula plugs you know the ones that cost more then there weight in gold and it felt like a misfire like it was putting out the flame acted like a turbo/SG car.
I also had a plug that was loosing compression.
Just a thought and easy checks

Pete

[tomtom72]

From the peanut gallery.......sorry.

I thought that GM changed the later injectors to be okay with the ethanol additive, but didn't go back past the first model year that ethanol was added to the gas. The mfg's knew in advance when the ethanol was going into use.

Check over at the netreg site for the exact yr because the later injectors are resistant to ethanol....I think. Why buy injectors if you don't have to, right?

The OEM's are actually a great design for being self-cleaning. They're just not entirely made from s/s. I think it's just the nozzel & the disc are s/s and the body is steel. I think I have that correct?

Tom

[guinnessdood]

It's the 90-92 injectors that are the major problems. He has a 92.

[tomtom72]

I will learn that eventually, I think.

I keep forgetting which year was the cut off for the crumy injectors... my RC's cost me 1088.00 and that was before the price increase....figured it was worth a shot

[32valvZ]

Well, theres no tuning back now!! I am down to the breather box. I noticed though, that all the bolts holding it down were hand tight. I put the socket on with a 10" extension and can remove pretty much all of them with my fingers. If I were to tighten them up, would that suffice instead of waiting for a gasket? Fter removing the 2 breather hoses, theyre actually in good shape. Not hard to the point of being brittle & no cuts.

The valley is frikking filthy!! I found all kinds of neat stuff in there...bugs, little pieces of hose & lots a grime.

[tomtom72]

Yea on my 90 they were all hand tight also....what a mess it made. I had enough oil for it to run out the drain tube and stain that corner of the pan!

Yes you proly can re-use the gasket. Just clean up the mess & the mating areas and I used a bit of that new stuff...comes in a thing that looks like a fat lipstick thingy....it's light blue....well I should say "new to me" from permatex.

I noticed that I could have re-used all of my gaskets....but I had all the stuff on hand before I dove in as I was tooooo nervous about doing the plenum pull...

Originally Posted by 32valvZ

Well, theres no tuning back now!! I am down to the breather box. I noticed though, that all the bolts holding it down were hand tight. I put the socket on with a 10" extension and can remove pretty much all of them with my fingers. If I were to tighten them up, would that suffice instead of waiting for a gasket? After removing the 2 breather hoses, theyre actually in good shape. Not hard to the point of being brittle & no cuts.

The valley is frikking filthy!! I found all kinds of neat stuff in there...bugs, little pieces of hose & lots a grime.

I've got new oem breather box gaskets.

Pull out the coils and the starter. Vacuum it out. Spray with brake kleen. Get the area clean!!!!

[32valvZ]

I cleaned everyhting up......





Did the drain hole mod.....

I've never been a fan of the drain mod. As the one from the factory actually has a drain tube to route it down. You are no dumping any kind of fluids onto the clutch assembly.

Just like every other car, your actuators are installed upside down. Don't worry about it unless they are binding really bad.

[32valvZ]

Originally Posted by Jeffvette

I've never been a fan of the drain mod. As the one from the factory actually has a drain tube to route it down. You are no dumping any kind of fluids onto the clutch assembly.

Just like every other car, your actuators are installed upside down. Don't worry about it unless they are binding really bad.

Well, too late now for the drain hole mod......I dont really plan on wetting the engine an extreme amount. Is that why the arm is cocked to one side on the actuators?

So, should I replace the injectors, the TB gasket & the breather box gasket as well as the coils?