DIY ** NST Civic SI underdrive pulleys

[acetylcholine]

Zeuce, did u get the complete set? Thoughts? Are these really worth it?

[Rallyecivic]

Great write up, but looks like a pain in the ass lol.

[honda_racer07]

It's really not that hard to do as long as you have the tools. takes no longer than 1hr.

[redpepSi]

sub-tacular.

[eXe]

Will these work with the comptech sc on?

[redpepSi]

Originally Posted by eXe

Will these work with the comptech sc on?

from what i've read - NO.

[JZILLA]

I think the crank pulley will work with s/c

[junbug30s]

Anyone dyno these pulleys yet?

[redpepSi]

here you go -

http://www.8thcivic.com/forums/bolt-...-must-see.html

[R4DG]

anyone know where to purchase these?

nst has been sold out everytime i check their site

[latin_tazz]

Originally Posted by MADDOGSI

OK I finally got my pulleys from NST. So here it goes.

These are the Pulleys both the Crank and Alt. I have the water pump on order as well. That will take more work.The pump will need to be removed.The pulley is a press on.




First off need to start with lifting the car and setting it on jack stands.



Then you will need the tools. I used a 1/2 impact,3/8 air ratchet,3/8 and 1/2 wobble extension,3 inch 1/2 extension,3/8 swivel head ratchet,12mm socket,12mm wrench,small flat screw driver,1/2 drive 7/8 & 3/4 socket,air gun,serpentine belt tool bar and blue loc-tite.


Now remove the belt as shown.Use the serpentine belt tool to release the spring tensioner idle pulley.



Once the belt is removed, remove the right side front wheel to get to the crank pulley.You will need to remove the splash cover that is held on with push clips.The cover runs along the front bottom to the other wheel well.you will only need to remove the clips shown and the clips along the bottom and leave the clips in the other side and just let the cover hang back out of the way.



once cover is removed,remove the crank pulley.Use the 1/2 impact and 3/4 socket.The crank bolt is very tight. should look like this when removed.



Make sure you keep track of the key way as shown below.this will need to be reused. and goes where indicated above.^^



here is what the difference is from NST to stock.



Next make sure the front crank seal and the seal sleeve is cleaned and not damaged during install.



Should look like this when installed.Torque to 180 ft lbs.



Now on to the Alt. This is the Hard part.You will need to get to the bolts.One on top and 2 on the bottom as pointed in pic.loosen the top bolt only.take it out last.



to get to the bottom Alt. bolt you will have to come up from the bottom.



Or if you have an Air ratchet you can use 2 wobble extensions,12mm socket and come from the top. As shown. If not use the 12mm wrench from the bottom.




Once all bolts are removed.slide the Alt. at an angle like this.



Then use the 1/2 impact,wobble extension,3" extension and a 7/8 socket to get the nut loose.wrenches will not due the trick here.Must use impact if at all possible.



Remove the stock pulley and install the NST pulley.




Now reinstall the Alt. back in place.Apply a small bit of loc-tite blue to threads to help keep tight.Install the top bolt first hand tight.follow with the bottom 2 and tighten bolts.
Now your ready for the belt.You will need a shorter belt. about 20 mm short. Gates # K070640 which is 1625 mm long.stock belt is 1646 mm long.
Feed the belt in place.Go from the fender well to help slip the belt in place.



Your all done. reinstall the splash cover and wheel.Then remove jack stand and set on ground.

My take on this upgrade.After some drive time.The best way to describe it.The car feels more snappy.More noticeable in 1st and 2nd.Quicker responce.Which is a plus for the DBW. So if you wanted something that could give you better responce in throttle.I would say this is a cheap upgrade.
I like it.

NEW UPDATED IDLER PULLEY TO KEEP THE STOCK BELT


OK boys and girls here is the latest from the guys at NST and some cooperation from myself for the FG2.This is the new Idler pulley to go with the crank and Alt to be able to keep the stock belt.

First and very needed to do this is a serpentine belt tool.this is needed to give the clearance between the tool and the pulley during the install of the new idler pulley.



Next remove the belt.With a 14mm socket, loosen and remove the idler pulley.



Now for the new pulley.See the size difference from stock to NST.





Next with the belt in place, position the NST pulley with the belt over it so it can be installed back in place as shown.you will need to move the tensioner and install the pulley/belt together.there is not enough room between the engine mount and pulley to put the belt on after the idler pulley is in place.Install the pulley over the stub shaft.Install the bolt and torque the bolt to 28 ftlbs +/- 2 ftlb.DO NOT reuse the black washer it will not fit this pulley and is not needed.



after that it should look like this.Now dont worry about the clearance. there is a 2mm gap between the mount and pulley.since these are two stationary points the gap will never change.but the belt is 3mm thick, which just doesn't quite squeeze in.



If a guy wanted too he could grind and polish a bit off the mount to be able to take the belt off with pulley still on and for a bit more clearance,but again there is no need too.after that you have one sexy looking pulley set and that uses the stock belt.so no need to try to go and find a shorter belt now.

nice write up, but for some reason I can't see majority of the pictures except for the last one.

[isunelan]

Originally Posted by R4DG

anyone know where to purchase these?

nst has been sold out everytime i check their site

There is a groupbuy special going on right now ends on 1/31/08
$40 off check it out at the http://www.8thcivic.com/forums/spons...lley-kits.html

[bmnorm2]

cant see any picturesbut last either

[tite681]

Can the pics on the original post be restored? Thanks.

[Lan Evo VIII]

Originally Posted by tite681

Can the pics on the original post be restored? Thanks.

+ 1

[FunkNasty777]

bump for new hosting of pics

[MADDOGSI]

Hey 8th gen. Sorry about everything. I have been in IRAQ for the past 7 months. My photo bucket got messed up. I'm unable to fix the links until I get back in the states. which will be in July. again sorry.

[FunkNasty777]

Well, dont I feel like an A$$hole. I'm crying about pictures and he's in Iraq risking his hide for me.

No sweat man, stay safe, watch your corners, and stay low. Thanks for your service.

[VTECnical]

Be safe!

[MutantCheese]

Since the original photos are MIA, here are the pics I took from my install: