tranny help - only goes half way

[longia]

hi, i'm a little new to this but i could sure use the help..

my friend and I are rebuilding a 1969 2002. we're practically replacing everything. we finally put the tranny in and connected it to the driveshaft.

when we press on the clutch pedal, it only goes half way down and it hits something (makes a clanking noise). i went under and noticed the clutch slave cylinder is full extended when the pedal is not pressed and when it is pressed it compresses 1/2".

the clutch master and slave are all new and so is the throw-out bearing.

any ideas? we're stuck.

thanks in advance.

-Long

[peteinjp]

Can you locate the clanking?

[longia]

yea we were bleeding it when we found out the pedal wouldn't go all the way down.

i'm not sure where the clanking is coming from.. i think it's in the tranny housing. i'm going to look at it more this weekend, hopefully.

[DukeRimmer]

Clutch pedal hard stop half way down can occur if mixing early and late flywheel, and pressure plate.

[longia]

thanks. i will definitely check the year of the tranny and match the right pressure plate size.

[DukeRimmer]

Flywheel thickness, and pressure plate height. I'll post measurements if it helps.

[Mike Self]

"old style" coil spring pressure plate, a six bolt flywheel and uses a different throwout bearing from the later cars with diaphragm pressure plates. (clutch disk is the same, early and late) These early cars also have an adjustable slave cylinder pushrod that the later cars don't have. With a new clutch and pressure plate, the pushrod may have to be adjusted back to its minimal length. Or you may have the incorrect T/O bearing.

Make sure you have the right clutch assy for your car. I have a source for the early pressure plates and T/O bearings if you have the wrong ones I have an early 69 and did a clutch replacement last year.

mike

[DukeRimmer]

to add to Mike's post if needed. I'll keep it to myself for now in order to avoid sounding contrary.

[longia]

turns out the engine is '71 which meant the pressure plate, clutch and release bearing is the same as mid-'69 and on. but apparently, i had the correct plate and clutch were but not the throw-out bearing.

managed to get a spare and all is well.

thanks for all the input.