Slave hitting PP, wtf?
04-28-2018, 01:36 PM
#1
Slave hitting PP, wtf? Still dealing with this McLeod RXT. Finally got time to reinstall trans again (8th time) sent clutch back to McLeod to be checked. They said its fine. Apparently not!
My slave is contacting the fingers and i still have about 3/4" before yrans is seated to bell housing.
Ideas??? Anyone?
My slave is contacting the fingers and i still have about 3/4" before yrans is seated to bell housing.
Ideas??? Anyone?
04-28-2018, 03:01 PM
#3
But the TOB is at its relaxed point with just the spring holding it at its locked furthes point.
It contacts PP 3/4" before trans and bell mate up. Thats not supposed to happen.
I'm even looking at another car with a Monster twin disc and theres a small gap like its supposed to be.
04-28-2018, 03:14 PM
#4
It is my understanding the RXT uses stock slave & MC
you have stock slave, right?
You sure the discs are aligned right?
if not the input shaft will hit the pilot not allowing tranny to go in al the way...like the last 3/4"
People do report though that it does take a "push" to collapse the slave all the way...assuming the discs are aligned right
you have stock slave, right?
You sure the discs are aligned right?
if not the input shaft will hit the pilot not allowing tranny to go in al the way...like the last 3/4"
People do report though that it does take a "push" to collapse the slave all the way...assuming the discs are aligned right
04-28-2018, 04:33 PM
#5
The slave is a stock GM. The master is a Tick. But the problem isnt in the stroke or master.
The problem is the clutch is too close to the TOB.
So, i've already checked the flywheel dimensions against a stock flywheel. All the same.
The only other thing it could be, if not the clutch setup, is rear flange on the crank is too thick. It is an aftermarket crank. But i really dont see that being the issue. We've used this same brand/style crank in many other builds.
I'm just baffled. I've never seen this issue where the clearance is too close. I've had to add a shim on a few, never too close.
The problem is the clutch is too close to the TOB.
So, i've already checked the flywheel dimensions against a stock flywheel. All the same.
The only other thing it could be, if not the clutch setup, is rear flange on the crank is too thick. It is an aftermarket crank. But i really dont see that being the issue. We've used this same brand/style crank in many other builds.
I'm just baffled. I've never seen this issue where the clearance is too close. I've had to add a shim on a few, never too close.
04-29-2018, 04:50 PM
#6
9 Second Club
So you're saying the slave when fully retracted is way too far out and hitting the fingers when the trans is 3/4" away ?
That sounds utterly impossible.
Post a picture of the slave when trans is in this position.
That sounds utterly impossible.
Post a picture of the slave when trans is in this position.
04-29-2018, 05:02 PM
#7
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04-29-2018, 07:33 PM
#8
But upon the last few hours upon hours or research, I found the the measurement from slave to trans face cannot be be greater than the measurement of bell to fingers.
Mine is by .280"
So apparently the problem is in the clutch being too close to trans I think.
Also after all this research, I found its a common issue with these RXTs.
Search reviews all good news. Search issues and you get ALOT of what I have.
04-30-2018, 05:01 AM
#9
9 Second Club
IMO, there is no way your slave is fully retracted.
Either that or you're using some strange trans/BH/crank combo as there is no way the clutch maker has fucked up that badly for an off the shelf clutch.
Either that or you're using some strange trans/BH/crank combo as there is no way the clutch maker has fucked up that badly for an off the shelf clutch.
04-30-2018, 12:50 PM
#10
I am doing this now with another clutch.
Remove spring from stock slave and fully push in throw out bearing until it bottoms out. Then measure the distance from bellhousing flange on tranny to bearing front face of slave, i get around 50mm.
Then measure the distance from bellhousing flange to installed torqued clutch tips of pressure plate fingers.. i get 59mm.
Please ignore if you get all this.
Regards
Gav
Remove spring from stock slave and fully push in throw out bearing until it bottoms out. Then measure the distance from bellhousing flange on tranny to bearing front face of slave, i get around 50mm.
Then measure the distance from bellhousing flange to installed torqued clutch tips of pressure plate fingers.. i get 59mm.
Please ignore if you get all this.
Regards
Gav
04-30-2018, 08:34 PM
#12
I've installed quite a few clutches but have never ran into this issue. After scrounging the net for hours researching this problem, come to find out its pretty common with the RXT. A member on here has a very good thread on here discussing this issue with this same clutch to another member having the same problem.
Basically, something in the clutch design makes it stack too far towards the trans.
Plus I found a plethora of threads on other forums about the same problem.
But getting sent back to McLeod after a lenghty phone conversation with them.
Basically, something in the clutch design makes it stack too far towards the trans.
Plus I found a plethora of threads on other forums about the same problem.
But getting sent back to McLeod after a lenghty phone conversation with them.
05-03-2018, 09:16 PM
#15
CRF, That thought crossed my mind and theres a few companies that actually make spacers. But it shouldn't be necessary on an stock block/trans setup
Ping KIng, Its just an LS2 block mated to a T56. Nothing special but the internals of both.
Ping KIng, Its just an LS2 block mated to a T56. Nothing special but the internals of both.
05-05-2018, 12:42 PM
#17
Mine is 1998 Z28, but with a an LS3 block, 4" PEP crank, Quicktime bell, T56 Magnum trans, and RXT clutch. When we install anything that doesn't have a GM part number you need to check and modify things to work correctly. I'd love to get a double roller LS chain that bolts right on, but you have to grind the cover and some of the melling pumps to get those to fit. I made my spacer because it was cheaper and easy. If you have threaded hole transfer punches, things like this are super simple to do.