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Please, please help with vibration problem
#931041
02/17/11 01:36 PM
02/17/11 01:36 PM
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Joined: Jan 2011
Posts: 15,947
Central Florida
larrymopar360
OP
Stud Muffin
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OP
Stud Muffin
Joined: Jan 2011
Posts: 15,947
Central Florida
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I am so bummed right now.Had new MP crate motor 360/300hp installed, along with TCI 727 and Torque Converter.There is an awful vibration without even driving.Bring it up to about 2K rpm and whole car shakes.The motor of course is externally balanced.The flexplate is bM #10242, which is supposed to be nuetrally balanced.Mechanic who did install said there was a big weight on the new converter.I was very clear with TCI sales person that it was for Magnum 360.I don't know what to do.Mechanic can't figure out why.Does it with car parked, so I guess that eliminates driveshaft,U joints, etc. What do I do now? I don't know where to turn.
Thanks. Larry
Facts are stubborn things.
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Re: Please, please help with vibration problem
[Re: buildanother]
#931043
02/17/11 01:52 PM
02/17/11 01:52 PM
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Joined: Aug 2004
Posts: 1,413
Newark,Ohio
kissmyaspen
pro stock
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pro stock
Joined: Aug 2004
Posts: 1,413
Newark,Ohio
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i think you need to change the flexplate back to a stock style one if the convertor has weight on it.
79 Dodge Aspen
12.265 at 109.75 MPH
67 Satellite NSS/E
11.83 @ 110
1968 Plymouth Road Runner 472 Hemi
3 time MOPAR NATIONALS CHAMP '03 FWD and '06 & '09 Street.
'07, '10, '12 Mopar Nats runner-up Street.
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Re: Please, please help with vibration problem
[Re: larrymopar360]
#931044
02/17/11 02:25 PM
02/17/11 02:25 PM
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Joined: Jan 2003
Posts: 1,051
Slidell, La.
doctor_mopar
super stock
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super stock
Joined: Jan 2003
Posts: 1,051
Slidell, La.
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That flexplate is for an externally balanced 360( Magnum 360) You need to switch flexplates , or you should be able to carefully remove the weight from the converter. You should be able to do that without removing the converter from the car.
------------------------ It doesn't matter what you do.........As long as you look good doing it !
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Re: Please, please help with vibration problem
[Re: larrymopar360]
#931045
02/17/11 02:25 PM
02/17/11 02:25 PM
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Joined: Dec 2007
Posts: 18,160
Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,160
Mass
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The B&M flexplate you have listed is for a 360/727 Externally balanced, your converter has a weight also,...IIRC the B&M flex plate is of there "conversion" line, meaning if your converter was a standard say 318/340 internal assy, the conversion adapter B&M flex plate was to compensate for the balance requirement that a internally balanced converter wouldn't have,...I recall doing a BB cast crank swap using a B&M conversion flex plate years ago....IMHO you have to either replace the flex plate with a factory flex plate, or loose the weight on the converter,...but consult B&M first as to your use of their plate and your converter choice
IMHO, I'd cut the weight off
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Re: Please, please help with vibration problem
[Re: larrymopar360]
#931046
02/17/11 04:50 PM
02/17/11 04:50 PM
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Joined: Jan 2011
Posts: 15,947
Central Florida
larrymopar360
OP
Stud Muffin
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OP
Stud Muffin
Joined: Jan 2011
Posts: 15,947
Central Florida
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Apparently I did not get the BM flexplate like TCI told me they would send me.Mechanic believes I got TCI #145600 flexplate. http://www.jegs.com/webapp/wcs/stores/se...Term=tci+145600Mechanic says there is no "half moon" cut out on flexplate, and receipt shows 145600 number and not BM number.Mechanic says there is a big square weight on converter.After a 15 minute phone call to TCI with all the techs in the room trying to figure it out, they tell me the square weight converter and their flexplate should work together with the 5.9 magnum, and to send back the converter so they can check it for balance.Great,pay mechanic to drop trans again, ship this thing back, wait who knows how long for them to test and decide.I don't know what to do now??? Car has been at shop for three weeks now, and he wants it out of there, and I am about out of money. Suggestions please.....
Facts are stubborn things.
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Re: Please, please help with vibration problem
[Re: larrymopar360]
#931048
02/17/11 05:15 PM
02/17/11 05:15 PM
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Joined: Mar 2007
Posts: 3,288
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,288
West Coast, USA
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Which one of these does your flexplate look like?
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Please, please help with vibration problem
[Re: larrymopar360]
#931049
02/17/11 05:21 PM
02/17/11 05:21 PM
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Joined: Aug 2004
Posts: 1,413
Newark,Ohio
kissmyaspen
pro stock
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pro stock
Joined: Aug 2004
Posts: 1,413
Newark,Ohio
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Quote:
Apparently I did not get the BM flexplate like TCI told me they would send me.Mechanic believes I got TCI #145600 flexplate. http://www.jegs.com/webapp/wcs/stores/se...Term=tci+145600
Mechanic says there is no "half moon" cut out on flexplate, and receipt shows 145600 number and not BM number.Mechanic says there is a big square weight on converter.After a 15 minute phone call to TCI with all the techs in the room trying to figure it out, they tell me the square weight converter and their flexplate should work together with the 5.9 magnum, and to send back the converter so they can check it for balance.Great,pay mechanic to drop trans again, ship this thing back, wait who knows how long for them to test and decide.I don't know what to do now??? Car has been at shop for three weeks now, and he wants it out of there, and I am about out of money. Suggestions please.....
3 weeks thats it we have one in our shop going on 3 years lol, long story, and 2 paint jobs later its going back together..
79 Dodge Aspen
12.265 at 109.75 MPH
67 Satellite NSS/E
11.83 @ 110
1968 Plymouth Road Runner 472 Hemi
3 time MOPAR NATIONALS CHAMP '03 FWD and '06 & '09 Street.
'07, '10, '12 Mopar Nats runner-up Street.
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Re: Please, please help with vibration problem
[Re: kissmyaspen]
#931050
02/17/11 10:34 PM
02/17/11 10:34 PM
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Joined: Jan 2003
Posts: 1,051
Slidell, La.
doctor_mopar
super stock
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super stock
Joined: Jan 2003
Posts: 1,051
Slidell, La.
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Take some good photos of converter and weight with a scale in the photo for measurement. If its their fault, I would hit them up for expenses ! At least you could prove if TCI changes it, or location of it. Of course, the problem could be improper installation of converter, a bad converter, or you could have the wrong harmonic balancer. The balancer is specially counterbalanced for a Magnum 360.
------------------------ It doesn't matter what you do.........As long as you look good doing it !
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Re: Please, please help with vibration problem
[Re: doctor_mopar]
#931051
02/18/11 02:21 PM
02/18/11 02:21 PM
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Joined: Jan 2011
Posts: 15,947
Central Florida
larrymopar360
OP
Stud Muffin
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OP
Stud Muffin
Joined: Jan 2011
Posts: 15,947
Central Florida
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I have spent much time on the phone with Mopar Techs.Seems the bottom line is I have to drop trans and remove converter and flexplate and sort of start over.Maybe take converter to a shop that can check it for balance.But first thing that seems unavoidable is removing both.Uggg.A couple of Mopar guys that my mechanic called advised to get the BM racing flexplate with the "half-moon" cut out, and then knock the weight off my converter, clean up the welds, and put it back together.I am leaning toward doing that, and have to decide something today.
Facts are stubborn things.
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Re: Please, please help with vibration problem
[Re: larrymopar360]
#931052
02/18/11 02:40 PM
02/18/11 02:40 PM
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Joined: Jan 2003
Posts: 1,051
Slidell, La.
doctor_mopar
super stock
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super stock
Joined: Jan 2003
Posts: 1,051
Slidell, La.
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Switching to the B&M plate and taking the weight off the converter may be your best bet. I just do not have much confidence in TCI. Also, it would be a good idea to make sure your mechanic did a good installation. The converter should easily slide up to and back away from the flexplate, when the torque converter bolts are removed. Sometimes the end of the crankshaft, or snout on the converter may have a burr on it. This can cause the converter to jam or [Edited by Moparts - Family Friendly Site - Keep it clean] in the pilot area of the crankshaft.
------------------------ It doesn't matter what you do.........As long as you look good doing it !
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Re: Please, please help with vibration problem
[Re: larrymopar360]
#931054
02/18/11 04:06 PM
02/18/11 04:06 PM
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Joined: Jan 2003
Posts: 543
Indiana, Just Off I-70
BradD
mopar
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mopar
Joined: Jan 2003
Posts: 543
Indiana, Just Off I-70
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The B&M flexplate has the part number stamped in it. I don't remember off hand which side but may be visible with the dust cover off.
I would think if the flexplate is full circle(no scallop cut) then the weighted converter would be correct.
Brad
Check out the Dorn's 69 Barracuda "Switchblade" in the Nov.2010 MCG
Check out the Dorn's refurbished 36 Ford in the Feb.2011 Street Rodder
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Re: Please, please help with vibration problem
[Re: BradD]
#931055
02/18/11 04:30 PM
02/18/11 04:30 PM
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Joined: Jan 2011
Posts: 15,947
Central Florida
larrymopar360
OP
Stud Muffin
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OP
Stud Muffin
Joined: Jan 2011
Posts: 15,947
Central Florida
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The flexplate is four leaf clover shape.I don't have a pic other than the one I linked in one of the earlier postings.Mechanic spun motor and remembers what it looked like, and described it as exactly like the one I linked above, and as a "four leaf clover" shape.Advice from Mopar Tech (Rich), who is super knowledgable, is to get BM flexplate 10242, which has half moon cut out, and then remove weight from converter, clean up welds, and re-assemble.He feels confident this will clear up vibration.Motor is MP Crate Motor, pre-assembled and included damper.Rich is confident it has the correct damper for that motor.
Facts are stubborn things.
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Re: Please, please help with vibration problem
[Re: larrymopar360]
#931056
02/18/11 04:44 PM
02/18/11 04:44 PM
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Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger
master
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master
Joined: Nov 2004
Posts: 2,825
Sk. Canada
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What he is saying then is the wrong weight is on the convertor.
Then TCI is correct and they screwed up.
Last edited by RemCharger; 02/18/11 04:48 PM.
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Re: Please, please help with vibration problem
[Re: larrymopar360]
#931058
02/18/11 10:59 PM
02/18/11 10:59 PM
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Joined: Feb 2004
Posts: 1,012
indiana
mcmopars
super stock
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super stock
Joined: Feb 2004
Posts: 1,012
indiana
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Quote:
I have spent much time on the phone with Mopar Techs.Seems the bottom line is I have to drop trans and remove converter and flexplate and sort of start over.Maybe take converter to a shop that can check it for balance.But first thing that seems unavoidable is removing both.Uggg.A couple of Mopar guys that my mechanic called advised to get the BM racing flexplate with the "half-moon" cut out, and then knock the weight off my converter, clean up the welds, and put it back together.I am leaning toward doing that, and have to decide something today.
this is correct for a magnum crate motor
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Re: Please, please help with vibration problem
[Re: mcmopars]
#931059
02/19/11 02:26 PM
02/19/11 02:26 PM
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Joined: Jan 2011
Posts: 15,947
Central Florida
larrymopar360
OP
Stud Muffin
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OP
Stud Muffin
Joined: Jan 2011
Posts: 15,947
Central Florida
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If indeed I have received the wrong combo from TCI, this will be the second time this same thing happened with them.I could not have been more specific and repeated myself more when ordering.I even used "5.9 Magnum" instead of "360", though I always prefer "360" to "5.9".Just gotta keep my fingers crossed.I am sooooooo stressed and frustrated over this, I really need a break.I will let you know. In the mean time, if anyone has any other input, please speak up.It probably will not be until Tues or Weds that the mechanic makes the switch, so there is still time.Thanks.
Larry
Facts are stubborn things.
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Re: Please, please help with vibration problem
[Re: buildanother]
#931060
02/19/11 04:50 PM
02/19/11 04:50 PM
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Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar
master
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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Quote:
If the flexplate has a large notch missing on outer edge(Not being perfect circle), then there is supposed to be NO WEIGHT on converter. 
x2 
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i would take his advice
