Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
Front Motor Plate Question....Pics please #214680
02/05/09 10:52 AM
02/05/09 10:52 AM
Joined: Jan 2006
Posts: 291
Ohio
Duster_Dude Offline OP
enthusiast
Duster_Dude  Offline OP
enthusiast

Joined: Jan 2006
Posts: 291
Ohio
Ok motor plate guy's here's one for you....
I'm about to install a front motor plate & mounts in my '72 Duster. I'll be using a Mancini B/RB Billet front motor plate, and for mounts I plan on using 2" tall angle iron brackets mounted atop each frame rail on the front side of the plate.
One potential problem I see is clearance of the engine plate over top of the mounts when removing or installing the engine with the trans attached.
Not that I'll be doing that often, just thinking ahead.
As much as I'd like to weld them in, I've considered bolting them down to the frame rails for ease of taking the engine in and out.
The question I have is have any of you done this and how does it hold up?
Any unforseen problems here?
Below is a couple pics of what I've got (which sometimes ain't much!).
Please post any pics you have of your motor plates and mounts, I'd really like to see some.
Any help is greatly appreciated.
Thanks in advance!



Re: Front Motor Plate Question....Pics please [Re: Duster_Dude] #214681
02/05/09 11:23 AM
02/05/09 11:23 AM
Joined: Sep 2007
Posts: 876
Arizona
PolyDart Offline
super stock
PolyDart  Offline
super stock

Joined: Sep 2007
Posts: 876
Arizona




I set mine up in a double shear arrangement. The one in back is welded and bolted, the one in front is just bolted so the engine can be easily removed.

Re: Front Motor Plate Question....Pics please [Re: PolyDart] #214682
02/05/09 11:31 AM
02/05/09 11:31 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
Quote:





I set mine up in a double shear arrangement. The one in back is welded and bolted, the one in front is just bolted so the engine can be easily removed.




Problem.... take the front bracket off, other wise
you have to go up and over it to drop in the engine.
I know you have it bolted, just weld the rear one
in place and you wont need the front one and you wont
have bolts coming loose

Re: Front Motor Plate Question....Pics please [Re: PolyDart] #214683
02/05/09 11:33 AM
02/05/09 11:33 AM
Joined: Feb 2004
Posts: 34,883
S.E. South Dakota !
bigdad Offline
Still Posting A Lot
bigdad  Offline
Still Posting A Lot

Joined: Feb 2004
Posts: 34,883
S.E. South Dakota !
Mine tie in the upper shock mounts and mount the plate off them


The lips of fools bring them strife, and their mouths invite a beating.Proverbs 18:6
Re: Front Motor Plate Question....Pics please [Re: bigdad] #214684
02/05/09 11:50 AM
02/05/09 11:50 AM
Joined: Sep 2005
Posts: 2,442
LOWELL IN
Q
QWK_ENUF Offline
top fuel
QWK_ENUF  Offline
top fuel
Q

Joined: Sep 2005
Posts: 2,442
LOWELL IN
ok

5002709-plate2.jpg (202 downloads)

WAXER
Re: Front Motor Plate Question....Pics please [Re: Duster_Dude] #214685
02/05/09 12:05 PM
02/05/09 12:05 PM
Joined: Jan 2003
Posts: 31,017
Oregon
A
AndyF Online content
I Win
AndyF  Online Content
I Win
A

Joined: Jan 2003
Posts: 31,017
Oregon
Looks good so far but you don't need the front brackets. There really isn't very much force on those brackets. The weight of the engine keeps it in place for the most part. Even with 600 ft-lbs of torque the bolts only have to resist about 150 lbs of shear force each on the driver's side. That is nothing for a bolt that size to handle.

Re: Front Motor Plate Question....Pics please [Re: PolyDart] #214686
02/05/09 12:10 PM
02/05/09 12:10 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
One thing, I would keep the 2 mounting bolts in the
plate like you have, this does help in frame flex
where a single bolt can let it pivot on the bolt, sure
it would be binding but it still can flex
EDIT
I would also add engine limiters to take the torque
of the launch

Last edited by MR_P_BODY; 02/05/09 12:14 PM.
Re: Front Motor Plate Question....Pics please [Re: MR_P_BODY] #214687
02/05/09 12:20 PM
02/05/09 12:20 PM
Joined: May 2004
Posts: 1,151
Las Vegas
A
afxcoronet Offline
super stock
afxcoronet  Offline
super stock
A

Joined: May 2004
Posts: 1,151
Las Vegas
Here's mine...

5002782-IM000152.JPG (235 downloads)

Taking over the World one win light at a time.
Re: Front Motor Plate Question....Pics please [Re: Duster_Dude] #214688
02/05/09 12:25 PM
02/05/09 12:25 PM
Joined: Jul 2004
Posts: 19,317
State of confusion
T
Thumperdart Offline
I Live Here
Thumperdart  Offline
I Live Here
T

Joined: Jul 2004
Posts: 19,317
State of confusion
I welded mine behind the plate that way the motor slides out easier and when installing the motor, it slides right in and butts up againtsed the brackets.


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: Front Motor Plate Question....Pics please [Re: Thumperdart] #214689
02/05/09 06:39 PM
02/05/09 06:39 PM
Joined: Jan 2006
Posts: 291
Ohio
Duster_Dude Offline OP
enthusiast
Duster_Dude  Offline OP
enthusiast

Joined: Jan 2006
Posts: 291
Ohio
ab7fh, like those shiny brackets.
That seems to be the most sensible way to do it with my set up.
Thanks for the input fella's, some great work there!
Keep those pics comin'!

Re: Front Motor Plate Question....Pics please [Re: AndyF] #214690
02/05/09 06:56 PM
02/05/09 06:56 PM
Joined: Sep 2007
Posts: 876
Arizona
PolyDart Offline
super stock
PolyDart  Offline
super stock

Joined: Sep 2007
Posts: 876
Arizona
Quote:

Looks good so far but you don't need the front brackets.




I like the double shear setup. It may be over kill, but that's ok with me. I'm not running in a class that needs to worry about every last ounce of weight.

To the poster who said the front bracket is in the way. The front bracket is removable. No problem pulling the motor forward.

Re: Front Motor Plate Question....Pics please [Re: Duster_Dude] #214691
02/05/09 07:28 PM
02/05/09 07:28 PM
Joined: Oct 2004
Posts: 5,618
long island NY
A
Ari440 Offline
master
Ari440  Offline
master
A

Joined: Oct 2004
Posts: 5,618
long island NY
heres mine :














1.39 9.85 - 137 mph
Re: Front Motor Plate Question....Pics please [Re: Ari440] #214692
02/05/09 09:23 PM
02/05/09 09:23 PM
Joined: Nov 2004
Posts: 3,168
Wichita Kansas
B Dartman Offline
master
B Dartman  Offline
master

Joined: Nov 2004
Posts: 3,168
Wichita Kansas
I agree with Mr_P_Body See my signature link photos... I welded the bracket in front and is a bit of a hassle going up and over as it's a pretty snug fit. Would have been better with bracket behind the plate..


B Dartman's 71 Dart Swinger in Mopar Muscle (Sold Dec 2021): https://www.hotrod.com/articles/1971-dodge-dart-destiny-determination/
B Dartman's 71 Dart Swinger in Dodge Garage (Sold Dec 2021): https://www.dodgegarage.com/news/article/showcase/2019/04/destiny-determination.html
B Dartman's 71 Dart Swinger early build pictures (Sold Dec 2021): https://s165.photobucket.com/user/Billswild440dart/library/
Re: Front Motor Plate Question....Pics please [Re: B Dartman] #214693
02/05/09 09:29 PM
02/05/09 09:29 PM
Joined: Oct 2004
Posts: 5,618
long island NY
A
Ari440 Offline
master
Ari440  Offline
master
A

Joined: Oct 2004
Posts: 5,618
long island NY
Quote:

I agree with Mr_P_Body See my signature link photos... I welded the bracket in front and is a bit of a hassle going up and over as it's a pretty snug fit. Would have been better with bracket behind the plate..





if you weld the plate in the front its a pain to do

but if you pass a long bolt througth the frame rail its only one bolt per side to do


I did mine so you use the whole frame rail to hold the moter in place, then just welding the bracket on a thin metal rail on top


1.39 9.85 - 137 mph
Re: Front Motor Plate Question....Pics please [Re: MR_P_BODY] #214694
02/05/09 10:09 PM
02/05/09 10:09 PM
Joined: May 2007
Posts: 1,443
Maryland
D
Dads426 Offline
pro stock
Dads426  Offline
pro stock
D

Joined: May 2007
Posts: 1,443
Maryland
Quote:

I would also add engine limiters to take the torque of the launch




What do your limiters look like? Are they off the factory ears on the block? I thought the motor plate would limit engine movement without the need for limiters.



2012 422 Allstars NSS Champion
2013 422 Allstars NSS Champion
2014 422 Allstars NSS Champion
Re: Front Motor Plate Question....Pics please [Re: Dads426] #214695
02/05/09 10:31 PM
02/05/09 10:31 PM
Joined: Jun 2007
Posts: 2,646
Plymouth Meeting, PA
bigtimeauto Offline
Trophy Winner
bigtimeauto  Offline
Trophy Winner

Joined: Jun 2007
Posts: 2,646
Plymouth Meeting, PA



BB, TT5,Procharged 3300lb Street Car 4.79/154
Re: Front Motor Plate Question....Pics please [Re: bigtimeauto] #214696
02/05/09 11:18 PM
02/05/09 11:18 PM
Joined: Jan 2003
Posts: 3,616
Riverside, Ca
G
G_bob Offline
master
G_bob  Offline
master
G

Joined: Jan 2003
Posts: 3,616
Riverside, Ca
As long as I'm re-doing the motor, I figured I'd fix the motor plate setup and down bars as well.

Here is how it was set up before.


Can't see it well in the pic, but the motorplate mounted to tabs on the downbars from the backside, so there's no way to pull the motor with the plate attached.
Major PITA.

Now don't laugh, cause it looks bad now, but the block is just an old junker to use for positioning, the real one is at the machine shop.
Anyway, the plate is replaced by elephant ears (although I'm seriously considering an AR Engineering plate instead.


The ears are bolted from the frontside to tabs welded to the frame rails.


Also re-did the down bars to lay them over next to the inner fenders and they are stitched to the shock towers.





It's still ugly, but as soon as I pull the old block out I'll be re-painting the engine bay, re-doing the wiring and re-plumbing the brake, trans and fuel lines.

Re: Front Motor Plate Question....Pics please [Re: G_bob] #214697
02/06/09 12:54 AM
02/06/09 12:54 AM
Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
rowin4 Offline
master
rowin4  Offline
master

Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
The elephant ear will work for awhile , they have a problem with the water pump gaskets leaking from engine torqueing back and forth.



it's ok to butt heads, just don't do it with a butthead
Re: Front Motor Plate Question....Pics please [Re: Dads426] #214698
02/06/09 01:15 AM
02/06/09 01:15 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
Quote:

Quote:

I would also add engine limiters to take the torque of the launch




What do your limiters look like? Are they off the factory ears on the block? I thought the motor plate would limit engine movement without the need for limiters.




I dont think I have any pics but yes I use the motor
mount ears to a tab welded to the chassis/frame. You
could incorporate the motor plate tab and the limiter
tab all in one. A flat plate isnt the best thing to
control fore/aft movement, specially if you launch hard

Re: Front Motor Plate Question....Pics please [Re: G_bob] #214699
02/06/09 10:32 AM
02/06/09 10:32 AM
Joined: Jan 2006
Posts: 291
Ohio
Duster_Dude Offline OP
enthusiast
Duster_Dude  Offline OP
enthusiast

Joined: Jan 2006
Posts: 291
Ohio
Quote:

As long as I'm re-doing the motor, I figured I'd fix the motor plate setup and down bars as well.

Here is how it was set up before.


Can't see it well in the pic, but the motorplate mounted to tabs on the downbars from the backside, so there's no way to pull the motor with the plate attached.
Major PITA.

Now don't laugh, cause it looks bad now, but the block is just an old junker to use for positioning, the real one is at the machine shop.
Anyway, the plate is replaced by elephant ears (although I'm seriously considering an AR Engineering plate instead.


The ears are bolted from the frontside to tabs welded to the frame rails.


Also re-did the down bars to lay them over next to the inner fenders and they are stitched to the shock towers.





It's still ugly, but as soon as I pull the old block out I'll be re-painting the engine bay, re-doing the wiring and re-plumbing the brake, trans and fuel lines.




It's gotta be ugly before its purdy.....
I like the idea with the down bars, I thought about making some sort of bracket to connect the bars to the shock towers....but with fenderwell headers, I wanted to get the bars away from everything.

Page 1 of 2 1 2






Powered by UBB.threads™ PHP Forum Software 7.7.1