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Tapping flex plate/torque converter threads #2356001
08/18/17 12:42 PM
08/18/17 12:42 PM
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northern,Ohio,USA
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Clanton Offline OP
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Clanton  Offline OP
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I messed mine up trying to put in longer bolts to make up for the .118 spacer moving the vert back into the pump.I had to use an open hole tap then trim 4 threads from it to bottom in the hole.I am putting in .680 arp bolts 200-2906 and I tested all the holes with the flex plat on the vert and no spacer[to be sure] and the bolt bottoms in the hole[close] against the plate.I am taking care of some fixes while I wait for the new flex plate.Will MEK clean the loctite from the threads on the crank?
ps:The vert hole is .815 deep with the flex plate on and the plate is .105 thick.How did I mess up the threads you ask,I 1st tried a arp 200-2902 that is .720 long and bottomed in the hole and unthreading the bolt messed up the threads with the bolt threads that got bent bottoming out.Wow that sucked!!!

20170818_094641.jpg
Last edited by Clanton; 08/18/17 02:39 PM.

GOTBOOST!New improved with Victor heads.
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Re: Tapping flex plate/torque converter threads [Re: Clanton] #2356043
08/18/17 01:56 PM
08/18/17 01:56 PM
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Romeo MI
MR_P_BODY Offline
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Just put a little heat to the locktite and
that should take care of it
wave

Re: Tapping flex plate/torque converter threads [Re: MR_P_BODY] #2356049
08/18/17 02:03 PM
08/18/17 02:03 PM
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northern,Ohio,USA
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Clanton Offline OP
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Originally Posted By MR_P_BODY
Just put a little heat to the locktite and
that should take care of it
wave
I have read of that but I will have to tap the hole to clean it.I use too much and will cut back.


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: Tapping flex plate/torque converter threads [Re: Clanton] #2356051
08/18/17 02:08 PM
08/18/17 02:08 PM
Joined: Jun 2003
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Romeo MI
MR_P_BODY Offline
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Originally Posted By Clanton
Originally Posted By MR_P_BODY
Just put a little heat to the locktite and
that should take care of it
wave
I have read of that but I will have to tap the hole to clean it.I use too much and will cut back.


Use a bottoming tap to clear the threads out
wave

Re: Tapping flex plate/torque converter threads [Re: Clanton] #2356054
08/18/17 02:12 PM
08/18/17 02:12 PM
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northern,Ohio,USA
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Clanton Offline OP
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ok thanks.


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: Tapping flex plate/torque converter threads [Re: Clanton] #2356489
08/19/17 11:53 AM
08/19/17 11:53 AM
Joined: Sep 2003
Posts: 19,336
north of coder
moparx Offline
"Butt Crack Bob"
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form, or roll taps are better than cut [normal style] taps for something like this, because they "roll", or form the threads instead of cutting [removing material] them, but the hole needs to be slightly bigger than the normal tap hole size.
beer

Re: Tapping flex plate/torque converter threads [Re: moparx] #2356493
08/19/17 12:03 PM
08/19/17 12:03 PM
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northern,Ohio,USA
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Clanton Offline OP
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Originally Posted By moparx
form, or roll taps are better than cut [normal style] taps for something like this, because they "roll", or form the threads instead of cutting [removing material] them, but the hole needs to be slightly bigger than the normal tap hole size.
beer
Ya when I bottomed the bolt in the hole and backed the bolt out it made thing bigger but most of the holes are ok accept the 1 open in the pic that I had to cut the tap to get in deeper.Thanks for the info.


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: Tapping flex plate/torque converter threads [Re: Clanton] #2356500
08/19/17 12:17 PM
08/19/17 12:17 PM
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northern,Ohio,USA
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Clanton Offline OP
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This is a dual hole vert and the other hole spacing is not for a mopar.any info on that?


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/






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