flex plate troubles.

[1tonchevy]

So lately my truck has not been having luck with starters. burned one up,grinds etc. yesterday i jumped into the old beast and when i went to start it it made a girding noise. but started. went to pay some bills came out and the starter did it's thing but sounded like it wasn't "meshing" to the flex plate after 5-7 trys finally cought and i brought it home and parked it, only thing i can come up with is my flex plat is frigged. the starter is a brand new high torque with off set mounting holes.


someone please help loosing my mind with this.

[rollin thunder]

I had a buddy who had a very similar problem as to what your describing and what he described and he had some broken teeth on the flexplate. new flexplate and bam like magic. haha but For the record I didnt hear the truck for myself this is just what he told me.

[motornut]

When i got the 78 it was,a "crunchy" to start
replaced starter,didn't help
realized the flywheel looked worn(not all the way around,maybe 3 evenly spaced out areas)
didn't know how bad till out ,and compared to a new one
no shims

[1tonchevy]

Originally Posted by motornut

When i got the 78 it was,a "crunchy" to start
replaced starter,didn't help
realized the flywheel looked worn(not all the way around,maybe 3 evenly spaced out areas)
didn't know how bad till out ,and compared to a new one
no shims

how much is a new one or do i want to know?

[motornut]

Originally Posted by 1tonchevy

how much is a new one or do i want to know?

i think it was about $80

[1tonchevy]

Originally Posted by motornut

i think it was about $80

my ring gear is 140 tooth (or at least that's what i counted) does this sound right? thought one was 153 and one was 168?

[1tonchevy]

Originally Posted by 1tonchevy

my ring gear is 140 tooth (or at least that's what i counted) does this sound right? thought one was 153 and one was 168?

from what i have researched since i have a off set starter bolts my truck should have the 168 tooth ring gear. :S

[motornut]

Originally Posted by 1tonchevy

from what i have researched since i have a off set starter bolts my truck should have the 168 tooth ring gear. :S

that's what I have too
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[Skunksmash]

Isn't there some kind of flex plate upgrade he can do? Might think about that while you're already in there.

[1tonchevy]

Originally Posted by motornut

that's what I have too
Posted via Mobile Device

you just ordered the 168 tooth and all was well?

[1tonchevy]

Originally Posted by Skunksmash

Isn't there some kind of flex plate upgrade he can do? Might think about that while you're already in there.

that would be great if there was.

[motornut]

Originally Posted by 1tonchevy

you just ordered the 168 tooth and all was well?

yup
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[motornut]

Originally Posted by motornut

yup
Posted via Mobile Device

yup

[88Jimmy4x4]

Take the inspection cover off and check the teeth, you may just need to shim the starter

[Skunksmash]

Originally Posted by 1tonchevy

that would be great if there was.

http://www.csr-performance.com/shop/...num-flexplates


Don't know how much you would gain out of it though. I assume lighter would mean less rotating mass so you might gain a smidgeon of power and MPG. Its probably better considered as part of a whole system like with an aluminum driveshaft and lighter aluminum wheels etc etc.