Flex plate balancing weight looks like it is hitting the backing plate - Ford Muscle Forums : Ford Muscle Cars Tech Forum

foleysfriend · 01-26-2013, 05:23 PM

So i have just installed my c4 into my 66 mustang and looks like there is next to no clearance on the engine backing plate. Turned the engine over and sounds like the weight is scraping the plate. Maybe I have the wrong flex plate. Not sure if some are interchangeable . Just wonder if all weights on them are as big.

Greg

foleysfriend · 01-26-2013, 05:45 PM

I may have to pull the backing plate again. I should have checked to see it it was straight before install.

If the flex plate is a 28oz imbalanced unit

RacingJake · 01-26-2013, 06:58 PM

Years ago I had the same sound when turning it over, in my case it was the threaded studs not screwed in enough in my TCI torque converter. Backed the nuts off and turned them in another turn and was good to go.

foleysfriend · 01-26-2013, 08:41 PM

You may have something regarding the nuts, because I did change some out because the flange nuts looked bad. So they don't have that nice rounded tops. They may be hitting the plate...Bravo! I hope that is it . Not a lot of clearance between that balancing weight and the backing plate .

Thanks

Greg

foleysfriend · 01-26-2013, 09:30 PM

The original bolts are 3/8 NF and are short. Might have to find a tranny shop for them

PSIG · 01-26-2013, 10:43 PM

Just don't adjust your nuts in public, please.

David

PS: if you pull the flex plate, it will be obvious what's scraping with marks on the block plate. If it's too late for that, do the nut thing and cross your fingers first. A surprise for me - my local little hardware actually carries those nuts for some reason, and also grade 5 jam nuts that could work (use LockTite) - maybe check one near you. Good luck.

foleysfriend · 01-27-2013, 02:23 PM

Not sure how much clearance there is between the flex plate weight and the engine block plate but the weight has placed a large scrub mark on the block plate. The block plate looks like it isn't perfectly straight. I am going to order a new one. Now the weight that is on the flex plate sticks up past the flat surface. I have no worries about the nuts now. It is the counter weight that may have been welded on with out checking the height. Sooooo...we now know my flange nuts are lower than the plate. This is a replacement , not an original . I may have to order one and check

Thanks

Greg

arnoldtx · 01-27-2013, 06:40 PM

Make sure tbe converter is all the way in the trans and not pushing the flywheel into the plate.

Sent from my SAMSUNG-SGH-I317 using AutoGuide.Com Free App

foleysfriend · 01-27-2013, 07:28 PM

I did make sure the convertor was all the way in. When I took the nuts off, I could push it back off the flex plate with a screw on one of the tc studs.

foleysfriend · 01-29-2013, 05:49 AM

I have ordered a new flex plate and engine block plate. Tired of guessing. The plate will not lay perfectly flat on the floor , so I believe it has a warp on it causing part of the issue. Scott Drake to the rescue

Greg

FEandGoingBroke · 01-29-2013, 10:46 AM

BFH and a crow bar will straighten that right out

foleysfriend · 01-29-2013, 05:17 PM

I was tempted ...lol

Not much room for error between the two parts, and tired of being under the car

Cheers

Greg

PSIG · 01-29-2013, 07:51 PM

Off topic - I have reported picerjamo as a SPAMmer. All his posts are cut-paste of other poster's words without any of his own so they're not immediately flagged as SPAM. Testing the system or fishing for reaction I guess, but in any case they are not of benefit to anyone. Report as you see fit with the

button under his name on HIS post.

David

Demonstration of how old posts can be edited later to insert ads when admins and members aren't watching:

Jetfixr320 · 01-29-2013, 08:14 PM

I had a flex plate that was cracked near the mounting bolts. Would let it contact the backing plate. You could hear it while at Idle.

foleysfriend · 01-30-2013, 09:06 PM

picerjamo kinda threw me off. I had actually posted something on here and his name came up ...So how do we get this piece of **** off here
Thought I was loosing my mind ...lol Just checked and has him banned ...Nice work

Thanks

Greg