Author Topic: Converter to flexplate?  (Read 5932 times)

Offline greatdane

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Converter to flexplate?
« on: July 07, 2010, 04:17:41 pm »
I have herd that you need to torque your converter bolts, and I have herd that you just need to get them tight? Which is it? Th350 with 12"small pattern converter to a 355 flexplate.
« Last Edit: July 07, 2010, 04:22:45 pm by greatdane »
'84 GMC Sierra Classic SWB 2WD
'08 Chevy Silverado Ext Cab 2WD
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Offline VileZambonie

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Re: Converter to flexplate?
« Reply #1 on: July 07, 2010, 05:17:30 pm »
Torque is critical but if you don't have a torque wrench use thread locker, install them all then go around and tighten them up.
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Offline Swims350

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Re: Converter to flexplate?
« Reply #2 on: July 07, 2010, 06:26:27 pm »
"tighten" them up is close enough to torque.

I don't put a torque wrench on them but I do make sure they are as tight as I can get them. Not by hand either, with a good long boxxed end wrench or 1/2 drive ratchet.

USE loctite for sure, had one come loose recently, first time ever, casued a bad vibration, definately need it to be safe.
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Offline Blazin

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Re: Converter to flexplate?
« Reply #3 on: July 07, 2010, 08:18:29 pm »
I have never had one come loose on me, I use a box end wrench, blue thread locker, and the three grunt method!   ;D
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Offline Swims350

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Re: Converter to flexplate?
« Reply #4 on: July 07, 2010, 08:23:03 pm »
That's what I use the ummmmffffff method or grunt, but I didn't use loctite and one came loose.
« Last Edit: July 07, 2010, 08:25:26 pm by Swims350 »
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Offline SUX2BU99

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Re: Converter to flexplate?
« Reply #5 on: July 09, 2010, 01:05:57 pm »
I had 2 of three loose  :o  It rattled pretty good and that's why I went to investigate. One was about to fall out, one was hand-tight and the other seemed tight. I tightened them up as much as I could but I did not use Loctite, but I should go back in there and do that.
85 Chevy Silverado C10 short, wide, yellow, 2wd. Lowered, 60-over 350 with Dart Iron Eagle heads and Comp Cams XE268 cam, TH350 w/ shift kit, 3.40 Gov-lok 12 bolt.

Offline greatdane

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Re: Converter to flexplate?
« Reply #6 on: July 10, 2010, 09:39:55 pm »
 I will use locktite and my elbow torque wrench! &Hope they don't fall out.
« Last Edit: July 10, 2010, 10:55:50 pm by greatdane »
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Offline Irish_Alley

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Re: Converter to flexplate?
« Reply #7 on: July 10, 2010, 11:32:56 pm »
when I changed transmissions in my 94 I didn't use lock tight just hand tight well they backed out put them in with clear fingernail polish and hand tight still 5 years later haven't backed out
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Offline Layne

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Re: Converter to flexplate?
« Reply #8 on: July 11, 2010, 01:11:23 am »
I had one explode out the side of my transmission one day...
77 c-10 - 77 400 86 700r4 "Emmy"
83 citation - 2.5L Four on the Floor!
88 sierra - reman 350 700r4 "Eleanor"
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Offline Swims350

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Re: Converter to flexplate?
« Reply #9 on: July 11, 2010, 12:52:43 pm »
OUCH!!!!!!!!!!!

you know guys I know it's wrong and you need loctite, but I had the stock TC  in my monte carlo only hand torqued as tight as I could go with the ratchet or wrench, and never had a problem. Then I had the 2k stall in it with a shift kit stage 2 from b&m and 3.42's and beat on it hard, had the grade 8 bolts from napa, and they just thread in no nuts on the backside since the 2k had threaded feet, no locitie same method of tightening and never had a problem. Now the same motor and flexplate, and stall converter are in the 84 c10 and not even a year later had the one back out to finger tight, actually looser then finger tight. I grabbed it and gave it 1/4 to half turn by hand, that's how I knew it was loose LOL, other then the bad shake it had. First time I ever had one do it to me. Actually had 2 loose that one and another was a turn loose by the wrench. I took em all out and used the loctite gel I think, comes in a tube and yout twist it, like a glue stick does, I think it's the blue kind. Now that's only been like a month or two ago, now I gotta take em all back out since we are changing transmissions.
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