davisw73
Junior Member
- Joined
- Jul 1, 2014
- Posts
- 5
- Reaction score
- 3
- Location
- Central Florida
- First Name
- Davis
- Truck Year
- 1985
- Truck Model
- C20
- Engine Size
- 6.5 banks turbo diesel, NV4500
So here's my dilemma. I have an 85 C20 that I am converting from TH400 to NV4500. I have stock 85 hydro master cylinder and 99 NV4500 internal slave. I have everything mounted, ready to go and it seems the square body master doesn't seem to push enough volume to completely disengage the clutch. I have it completely bled and have plenty of travel left in pedal. I can see the throw-out bearing immediately start to move as soon as I push the pedal and I can force a very small feeler gauge in between the friction disk and pressure plate, but when I turn the output shaft the clutch is still fairly engaged and drags bad enough where the only gear I can turn it in is 5th (doesn't turn motor).
Am I wrong on my theory about volume or is there something else I'm missing? Is this common and I missed it in the 30,000 threads I read about this conversion? Is there a bigger bore master that everyone uses that bolts in with minor mods? Can a 99 master be adapted to my 85 firewall without a ton of mods?
Thanks,
Am I wrong on my theory about volume or is there something else I'm missing? Is this common and I missed it in the 30,000 threads I read about this conversion? Is there a bigger bore master that everyone uses that bolts in with minor mods? Can a 99 master be adapted to my 85 firewall without a ton of mods?
Thanks,