347 Build

[lukep6470]

So I've looked up the part number (C6OE-6312-A) and the pulley does have the lip to fit in the balancer.

It seems the 4 bolt pulleys don't have the lip. My new balancer can take both so maybe I need to turn the tone ring into swiss cheese!!

[hybrid]

More holes = less weight.
That's got to be good right?

[lukep6470]

The aftermarket 3 hole pulleys don't have the lip either. So that makes it lighter still!!

Just keep drilling!!

[boofhead]

This is why I was thinking of using a lath and placing a large hole so it slips over the end of the pulley and weld it on. You can have your 3mm or so of clearance from the balancer without needing to space out the pulley or remove the lip.

[lukep6470]

That sounds like the best plan but it would have to be dead straight. There certainly isn't enough room behind that fat balancer for it.

[Shaunp]

That sounds like the best plan but it would have to be dead straight. There certainly isn't enough room behind that fat balancer for it.

Not hard to make it straight, you could turn up another sleeve to push it up against.

[boofhead]

It would not be that hard as the pulley is tapered so it pushes up against the pulley's outside surface. Then the distances around the edge of the 36:1 wheel back to the datum (the flat bolt surface) just needs to be the same (you could use thick washers). Once the alignment of the missing tooth is correct relative to TDC and where you are going to mount the sensor you can place several tack welds and the job is done.

[lukep6470]

So I've been reading up on water pump lengths and the pulleys that go with them.

It appears my pulley has a 2 3/4" offset.

If I can get a dual groove pulley for a shorter pump I can then space it out without having to shim the accessories.

[boofhead]

Good thinking - I just find there are so many sizes and offsets for all the various pulleys that once you have a set that lines up then go with it. If you can get one that works for you then your on a good find.

[lukep6470]

It also seems the 4 hole is the way to go as if you use a 3 hole without the indexing lip things can get quite wobbly!!

The balancer comes with several set of spacers so I have a few options.

Swiss cheese here we come!!!

[lukep6470]

Proof of life! The wideband didn't survive the swap (Heater calibration error) so I've got it running rich ATM.

[lukep6470]

Now the video:

[lukep6470]

I suck at photobucket!!

http://vid1335.photobucket.com/albums/w ... 16tdua.mp4

[ozbilt]

I just changed the link. At least it now works in another page

[boofhead]

Excellent work. Sounding good.

I was hoping to see photos or the way you mounted the 36:1 wheel and sensor. Any way, nicely done.

Time to tune and enjoy the drive.