Slight tick from flexplate area?

tonybolton · Mar 14, 2014

Vortec 350 using an adapter to a jeep 727 auto trans.

After some 2nd gear runs at a rock slab at GMORP it has what sounds like a lifter tick but noise is definitely coming from flexplate area. Its RPM dependant.

Ive checked all the flexplate bolts and all are tight. Flexplate runs straight and true. Checked the counter weight and its welded on tight.

Buggy runs/drives/shifts just fine...jus has that light tick. Its a thin metal tick sound. Like taking a flathead and tapping the plate.

Ive expired all ideas on Google so figured id see if anyone here has any ideas.

Thanks for any and all info. I'm gonna wheel it locally tomorrow and keep near the parking lot.

3pgnebs · Mar 14, 2014

Could be the snap ring come off the starter bendix and is letting it get into the flywheel.

tonybolton · Mar 14, 2014

Re: Re: Slight tick from flexplate area?

You know...the tick does seem more prominent on the passenger side where the starter is...would not have expected that.

Ill check that out!! Thank you very much!

jp fan · Mar 14, 2014

Agree with starter maybe sliding out also look for a gravel in there somwhere

tonybolton · Mar 14, 2014

Re: Re: Slight tick from flexplate area?

I took my air hose and blew it all out thinkin the same thing. I'm not running an inspection plate.

BorderPatrol · Mar 14, 2014

Re:

I'd say one of your flex plate bolts came loose and is hitting the shroud or housing.

BorderPatrol · Mar 14, 2014

Re:

It happened to me after my last tranny swap. A little lock-tite and haven't heard it since.

tonybolton · Mar 14, 2014

Re: Re: Slight tick from flexplate area?

All bolts were tight and rechecked

offroadman83 · Mar 14, 2014

Re:

Cracked flexplate?

Sent from my LG-D801 using Tapatalk

tonybolton · Mar 14, 2014

Re: Re: Slight tick from flexplate area?

Nope I rotated that whole thing around probably 10 to 20 times looking for something like that

BorderPatrol · Mar 14, 2014

Re:

Any of the bolt heads look like they are making contact with anything?

halcat · Mar 14, 2014

My starter gear was bouncing in and out and clicking with my flex plate. You and take the starter drive off and put a shim between motor starter head and fix it.

tonybolton · Mar 14, 2014

Re: Re: Re:

BorderPatrol said:
Any of the bolt heads look like they are making contact with anything?

Nope....nothin looks shiny!! Figured id notice that too

tonybolton · Mar 14, 2014

Re: Re: Slight tick from flexplate area?

Cool....hopin its jus somethin easy like that!

Chris S · Mar 14, 2014

Just experienced the same thing on our 98 4-runner. Sounded like a low end knock at times and was rpm sensitive. I let it go and it finally let go! It was a cracked flex plate that ended up cracking from hole to hole where it bolts to the crank! There would have been no way to check this on my vehicle through the inspection plate due to the location. I would pull the transmission and check it b4 it leaves you stranded in a bad place!

tonybolton · Mar 14, 2014

Re: Re: Slight tick from flexplate area?

Oh hell!

fordcontraption01 · Mar 14, 2014

tonybolton said:
Oh hell!

chevy chevy chevy molaugh

just kidding man

tonybolton · Mar 14, 2014

Re: Re: Slight tick from flexplate area?

Too much powa!!!

Jus went out there with a thin LED light and looked really hard where it bolts to the crank. I didn't notice ant deformities. I also tried to pry on it to get it to make any clicking and didn't hear any.

BorderPatrol · Mar 14, 2014

Re:

Flexplate to converter bolts too? That was where mine backed out. Don't mean to be a pita. I feel like I'm being an ass, but it has the same exact symptoms I was having.