NV4500 clutch pedal/arm/throw adjustment

[73azbronco]

I measure 6 1/4 from top of pedal to carpet, which is about 3/8 thick, so pretty close. I will say I adjusted clutch pedal to match brake pedal so will see if I can get that a little higher. That will at least get me off the floor for release of clutch.

Still researching parts, conclusion, I may have wrong pressure plate, one for an nv4500, and or wrong throwout bearing, one made for a 2 part friction plate vs one plate. Guys on mustang forums are talking about this error when they do tranny swaps, so like motors, same possible error.

 

[lars]

I measure 6 1/4 from top of pedal to carpet, which is about 3/8 thick, so pretty close. I will say I adjusted clutch pedal to match brake pedal so will see if I can get that a little higher. That will at least get me off the floor for release of clutch.

Still researching parts, conclusion, I may have wrong pressure plate, one for an nv4500, and or wrong throwout bearing, one made for a 2 part friction plate vs one plate. Guys on mustang forums are talking about this error when they do tranny swaps, so like motors, same possible error.

I have a couple of spare throwout bearings. One that I know is identical to what's installed and a new one that came with the clutch kit going in when I do my upcoming 408 swap. I'll dig them out and compare. Will report back. Other than that I can't imagine what could be different. The clutch/pressure plate assembly I've had in for 15 years is the same one/same part number that WH still sells for the NV.

 

[73azbronco]

yeah thats my problem. I can't recall if I used the supplied parts, only non photo part of the entire build. I was worried about the torque i could put through the clutch so went high end or something, TBD.

 

[DirtDonk]

It was my impression that the correct throwout bearing is simply the normal Ford throwout bearing used on many different model vehicles over the years. Even when they used different pressure plates and discs, the bearing was the same.
Seems like the number is something like an N1439 maybe? Don't hold me to that, but it sounds familiar.

The main change was the pilot bearing.

Paul

 

[73azbronco]

Same belief here, pilot bearing has to be correct to allow nv to mount. Two styles of ford throwout bearings, a pressure plate designed for multi vs single clutch are my only two what ifs, besides sloppy linkage still TBD.

 

[snipes243]

Just curious which centerforce clutch did you end up using? I was looking to upgrade my setup.


Maybe helpful info I'm running a daiken pressure plate diaphragm style with the centerforce n4500 clutch disc from wild horses. I did basically have have to max out the adjustment rod to get the clutch to engage and disengage correctly.

https://www.phoenixfriction.com/p-2...ord-cars-pickups-vans-mercury-cars-11-in.aspx

https://www.wildhorses4x4.com/product/NV4500_Clutch_Disc/Early_Bronco_Clutch

 

[73azbronco]

cant know until I open it up, I'm moving so my foot thick pile of receipts are in some box in some storage unit, somewhere. Thats my problem, I did not keep track of this very well, my bad.

 

[73azbronco]

closing this out, fixed.

Pic of pedal position, clutch is a pedal thickness higher than brake pedal, and I can't tell really.

What I found was, I had all the linkage adjusted wrong way, I reset it all with crossbar driver side bar as High as I could get it, that forced clutch rod to throwout arm closer. That gave me clutch release about 2-3 inches off floor, and about 2 inches pedal depressed. Whew. Glad I looked it all over, the bushing on top rod connecting pedal was missing, not really an adjustment issue more one of smoothness.

Also, there is an eccentric rubber stop on the clutch pedal arm up under dash, mine was already adjusted to full up.