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Shimming the slave cylinder Question

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Old 07-16-2015, 06:51 AM
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Default Shimming the slave cylinder Question

i measuerd the distances as talked about in the stickied post from Joey at Tick. I came up with a total of .243" and that puts me at about .104" gap.

This seems like a huge amount to me. Is this somewhat normal? LS3, T56 from 2005 GTO, Monster Stage 3 clutch with 18 lb flywheel, and factory LS1 bellhousing.

Monster's ad on their site says you shouldn't need any shims, so having that much seems a little whack to me.

I probabaly measured this thing 15 times to make sure I was correct. The measurements are correct.
Old 07-16-2015, 12:41 PM
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I think you should call SNL performance for their input. That seems high to me too.

Good for you to measure anyway. You saved yourself a ton of reworking by taking that measurement as a precaution.

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Old 07-16-2015, 12:51 PM
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i would call snl. monster clutches should rarely need shims.
Old 07-16-2015, 03:41 PM
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I did call them. He told me to call Tick and buy the shims.

I called again. He said it was a pretty odd situation, but if everything was measured right, it is what it is. I did take out a smaller shim and opened the gap up a bit. I still have a .188" shim in place though.

Last edited by joyridin'; 07-16-2015 at 04:40 PM.
Old 07-16-2015, 06:24 PM
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Yeah, I'd go with what they tell you. Some guy over the internet (myself included) is not likely to give as good advice as the guys who built it.
Old 07-16-2015, 07:24 PM
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it may be due to the frankenstein set up you have, ls3 engine, 05 gto t56,
with a ls1 bell... who knows, but i'd take his advice, too !
Old 07-22-2015, 07:58 PM
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Originally Posted by joyridin'
i measuerd the distances as talked about in the stickied post from Joey at Tick. I came up with a total of .243" and that puts me at about .104" gap.

This seems like a huge amount to me. Is this somewhat normal? LS3, T56 from 2005 GTO, Monster Stage 3 clutch with 18 lb flywheel, and factory LS1 bellhousing.

Monster's ad on their site says you shouldn't need any shims, so having that much seems a little whack to me.

I probabaly measured this thing 15 times to make sure I was correct. The measurements are correct.

Are you talking about cushion before the clutch slave bottoms out on the trans face? If that's the case, .104", is cutting it tight. I like to have .125-.375", but also make sure the slave has enough travel to release the clutch. Please clarify your measurements.
Old 07-23-2015, 06:40 AM
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No, I was talking about the gap between the pressure plate and throwout bearing before the throwout bearing engages the clutch. Tick states .06"-.125", Monster says .06"-.200". With a .188" shim behind the slave, I got .104". Everything seems to work fine.
Old 07-23-2015, 09:18 PM
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Originally Posted by joyridin'
No, I was talking about the gap between the pressure plate and throwout bearing before the throwout bearing engages the clutch. Tick states .06"-.125", Monster says .06"-.200". With a .188" shim behind the slave, I got .104". Everything seems to work fine.


OEM slave? There is no airgap...the slave is spring loaded fully extended. It's supposed to have constant contract with the clutch fingers.
Old 07-24-2015, 07:22 AM
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With the spring removed for measuring. That is the only way you can get an accurate gap measurement.
Old 07-24-2015, 10:37 AM
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Originally Posted by joyridin'
i measuerd the distances as talked about in the stickied post from Joey at Tick. I came up with a total of .243" and that puts me at about .104" gap.

This seems like a huge amount to me. Is this somewhat normal? LS3, T56 from 2005 GTO, Monster Stage 3 clutch with 18 lb flywheel, and factory LS1 bellhousing.

Monster's ad on their site says you shouldn't need any shims, so having that much seems a little whack to me.

I probabaly measured this thing 15 times to make sure I was correct. The measurements are correct.
Give us a call, so we can go over details.
Old 07-25-2015, 06:50 AM
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I did. Your guy told me it was a lot, but if that is what it is, then good.

It worked out fine. Everything seems to work. Is it normal for the pressure plate housing to be .250" away from the flywheel? That is where all the gap seems to have come from. By the time I tightened the pressure plate to the flywheel, it sucked the pressure plate fingers down .300" or so.



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