so the point of cleaning is to clear the deposit build-up at the holes.

can you just shoot the deposits back into the hole?

 

Ideally you want it all up and out. Little pieces will go in and it's not the end of the world though.

 

then i should use a vacuum cleaner to suck it up?

 

bump

 

What little carbon does fall in should just blow out your exhaust. If you use a good carb cleaner, most of it will disolve anyways. Definitely not the end of the world.

After cleaning mine for the second time today (after only 4 months), I found a decent amount of carbon deposited in the passage ways, but not clogging the holes. I believe this carbon was residual in the EGR valve, and in the pasage ways you can only clean by removing the valve, and possibly the intake manifold.

I had noticed a slight stumble at around 2k rpm returning like it did before I cleaned it for the first cleaning 180k miles. All is well now as I think most of the residual carbon has blown out...

Good luck and remember to silicone grease the rubber fuel injector cushions and orings...
On a 94-97 the fuel rail nuts torque is 83 in-lbs iirc.

sohc

 

OMG !!

83lbs? that is insane-O. also, are there any gaskets i have to replace?

 

No no no no no no...

83 INCH pounds... thats hardly anything If you dont have an inch lb torque wrench just put some blue loctite on it and hand tighten the nuts evenly so its just good and snug...

For about 25 bucks you can get all new o-rings and cushion pieces from Honda, but if they are in good shape (not cracked/crumbling/misshaped) smear them all over with a silicone grease such as di-electric grease, this will preserve the rubber and help it seal. Also be sure to clean the mounting surfaces of the injectors and intake manifold before sliding things back together.

A tip: you dont even need to remove the fuel line or fuel return line if you dont pull the injectors out of the fuel rain (relieve the pressure on the fuel system if you do). You can use a small bungee cord to hold the fuel rail and injectors vertical while you clean the ports. Just hook the rail to a hole on the under side of your hood... The injectors can fall out though, so be careful

sohc