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SShink


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Stupid flex plate question
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Does the flex plate side with the recessed mounting pockets go on the converter side or the motor side when installing it?

The one I took off the 402 had the pockets on the motor side, which I think was backwards as shouldn't the converter mounts fit into the pockets?

Or, does it depend on how much spacing you need for the converter to go onto the trans input shaft?

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Stan S.-Twin Cities 'South Metro'

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John D


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I was going to suggest looking at the "witness marks" on the flexplate, but as there may be some question as to if it was on correctly in the 1st place....??

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John D. - St. Louis Park, MN.

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John D wrote:

I was going to suggest looking at the "witness marks" on the flexplate, but as there may be some question as to if it was on correctly in the 1st place....??



That's why I'm confused.  The original one had the bolt witness marks still on it, and it was installed with the pockets towards the motor side.  emote.img?ID=15270

I searched TC, and found some posts that said to install it with the pockets to the converter side which makes sense to me since the converter ears would fit into the pockets for better engagement?



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Stan S.-Twin Cities 'South Metro'

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John D


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The other thing to check is the dowel pin location. If it's not symmetrical to the other bolts the flexplate will only go on ONE way...

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John D. - St. Louis Park, MN.

1965 El Camino - LT-1, 4L60e, 4wh discs, SC&C susp.
2013 F-150 Platinum - Twin Turbo 3.5

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John D wrote:

The other thing to check is the dowel pin location. If it's not symmetrical to the other bolts the flexplate will only go on ONE way...


Unfortunately, it will go on both ways.

 



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Lost in the 60s


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Been a while since I played with a flex plate but I'm pretty sure the pockets go towards the motor so the bolt heads are in line with the ring gear. I think if you put the pockets towards the rear, the bolt heads protrude forward beyond the ring gear.

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Mitch D.   River Falls, WI

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Chris R


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Would your transmission guy be able to answer this? Is it off set in some ways depending on which way you installed it or is it even all the way across, if you see what I mean? Its another one of those easier in person then to explain through type sort of things.

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Chris - Ramsey, MN.

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Lost in the 60s


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Chris R wrote:

Would your transmission guy be able to answer this? Is it off set in some ways depending on which way you installed it or is it even all the way across, if you see what I mean? Its another one of those easier in person then to explain through type sort of things.


Yes, hold the plate against the torque converter and the answer may become obvious if it doesn't sit properly one way.....emote.img?ID=15282


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Mitch D.   River Falls, WI

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SShink


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The holes line up with the converter in either direction of the flexplate.

I'll give Master Trans a call to confirm the flex plate orientation before I install it.



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frank


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raised areas toward converter. miight even say engine side on plate.

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Enganeer


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I agree with Frank.

I went through this before and I recall it was the raised pads go towards the converter.

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John E - Rogers, MN

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Enganeer wrote:

I agree with Frank.

I went through this before and I recall it was the raised pads go towards the converter.


That's how the one I took off was mounted.  I went over both sides and can't find an 'engine side' or 'converter side' marking anywhere.  There is a lable on the raised pad side, so maybe that means it's the converter side.

 



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Stan S.-Twin Cities 'South Metro'

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SShink


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I've searched TC some more, and the consensus is raised pads out to the converter side.  Recesses on the motor side.

I'll call Master Trans to confirm before I put it together.

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Stan S.-Twin Cities 'South Metro'

1972 Malibu Convertible 2nd time around 

1999 SS Camaro LS1-6 speed

Forum influenced terms: 'Link Paste', 'Stanitized', & 'Revolving garage door...' 

 
Chris R


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Is it a stock part or aftermarket?

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Chris - Ramsey, MN.

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Chris R wrote:

Is it a stock part or aftermarket?


This one:

http://www.summitracing.com/parts/SUM-G100SFI

Actually made by 'Pioneer'.

 



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Stan S.-Twin Cities 'South Metro'

1972 Malibu Convertible 2nd time around 

1999 SS Camaro LS1-6 speed

Forum influenced terms: 'Link Paste', 'Stanitized', & 'Revolving garage door...' 

 
Bungy L-76


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Yes, the raised pads go TOWARDS the torque converter.



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Chris R


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Well, you'll know you got it on wrong when you get it back together and the starter teeth wont engage the ring gear correctly when you go to hit the key the first time.emote.img?ID=15283

Nothing another good old 4 speed swap wont fix.emote.img?ID=15304

emote.img?ID=15283

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Chris - Ramsey, MN.

Dear Optimist, Pessimist, and Realist.

While you guys were busy arguing about the glass of water. I drank it!

Sincerly,

The opportunist.
SShink


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Chris R wrote:

Well, you'll know you got it on wrong when you get it back together and the starter teeth wont engage the ring gear correctly when you go to hit the key the first time.emote.img?ID=15283

Nothing another good old 4 speed swap wont fix.emote.img?ID=15304

emote.img?ID=15283


Good points Chris.  I just don't want to install/un-install this auto trans 4 times this summer like I did with the manual trans last summer, so I'm asking stupid questions!!!  emote.img?ID=15286

After all the 4 speed swaps, I guess I needed to start my learning process all over by going to an auto!  emote.img?ID=15274

 



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Stan S.-Twin Cities 'South Metro'

1972 Malibu Convertible 2nd time around 

1999 SS Camaro LS1-6 speed

Forum influenced terms: 'Link Paste', 'Stanitized', & 'Revolving garage door...' 

 
Chris R


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There is no such thing as stupid questions. Those are the ones that you dont ask. Otherwise pulling the trans back off is another hassle. Plus, I wasnt exactly sure how to to answer this either. So this will help us all. 

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Chris - Ramsey, MN.

Dear Optimist, Pessimist, and Realist.

While you guys were busy arguing about the glass of water. I drank it!

Sincerly,

The opportunist.
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