Flexplate help

[Pstyckiewicz]

So I inspected my Flexplate awhile ago and noticed some of the teeth were worn. Went to start my truck and herd it skipping on the teeth a little bit. Is there any easy way to change it out. Or some instructions to take it out. Truck is an M1152A1 6.5 turbo with the 480le.
Thanks in advanced!

 

[GuntherRommel]

you might need to shim the top of starter

 

[Pstyckiewicz]

I’ll see if I can get pictures to post ASAP.

 

[patracy]

Like GuntherRommel said, it might need some shims. But if the flexplate teeth are damaged, it'll need replacement. Unfortunately there's no easy fix for that. It's pull the transmission/t-case to gain access to it.

 

[Pstyckiewicz]

Yup teeth are damaged/worn. That’s what I figured. I’m guessing shift linkage, cross member, hoses?. Anything else weird I should know before dropping this thing.

 

[Mogman]

Drive shafts, make sure when you remove the converter bolts that you gently pry the torque converter back towards the transmission to insure that the torque converter is not "stuck" to the crankshaft so it moves back with the transmission, also be mindful if the transmission tilts forward that the torque converter can slide off the input shaft.
It,s not a bad idea to also replace the torque converter seal at this time.

 

[Retiredwarhorses]

Ive installed hundreds of starters in HMMWV’s, I’ve never once noticed a difference of the engagement with or without the shim…i always use them, but Ive received more than I can count that did not and were problem free.
I don’t use the shim on engines in the test stand, I just bolt the starter up and go…the problem with starters is a simple one, generally at some point in the trucks life a bendix started to fail, or even a lazy solenoid, this started the grinding, but they waited to long to replace the starter, once the starter went in, it was too late as the flexplate teeth were compromised, the end result is the new starter is Now bad as well.

 

[FlameRed]

I had the same problem last spring.

You can buy the GM one without the HMMWV tax.

Pretty much as the others stated. If you do not have a lift, just make sure you have a substantial hydraulic tranny jack as the tranny and transfer case is a heavy beast! Getting it down is easy, but getting it back up sucks using just multiple 4x4 wood blocks and multiple general jacks. Do NOT try using any kind of screw jack - these things are just too heavy for them.

Just look at what tore up the teeth. You might find the gear in the starter is gone. I bought a replacement gear but found out that it is tricky to replace yourself unless you do it everyday, so I took it for a professional local rebuild and kept it as a spare. It was a good call as there were other things that needed attention once they took it apart. You should find a shim kit installed.

I ended up installing a gear reduction starter and been told no shims are necessary. No problems with almost a year of use.

 

[Retiredwarhorses]

I had the same problem last spring.

You can buy the GM one without the HMMWV tax.

Pretty much as the others stated. If you do not have a lift, just make sure you have a substantial hydraulic tranny jack as the tranny and transfer case is a heavy beast! Getting it down is easy, but getting it back up sucks using just multiple 4x4 wood blocks and multiple general jacks. Do NOT try using any kind of screw jack - these things are just too heavy for them.

Just look at what tore up the teeth. You might find the gear in the starter is gone. I bought a replacement gear but found out that it is tricky to replace yourself unless you do it everyday, so I took it for a professional local rebuild and kept it as a spare. It was a good call as there were other things that needed attention once they took it apart. You should find a shim kit installed.

I ended up installing a gear reduction starter and been told no shims are necessary. No problems with almost a year of use.

You only need to move the transmission back 3in or so to get the flexplate off.

 

[Pstyckiewicz]

Perfect hopfully it will be an easy 3 inches haha

 

[FlameRed]

Maybe mine is different, but I could NOT move the tranny/gearbox combo back far enough to get the flexplate off. The gearbox hit the fuel tank and there was not sufficient room to get the flexplate off. Maybe with the right tranny jack it could have tilted, but not working on my back with the jacks I had.

 

[Mogman]

Perfect hopfully it will be an easy 3 inches haha

You just jinxed yourself
Kidding aside it is never easy

 

[Pstyckiewicz]

Haha I typically snap bolts and cross thread everything so it should be fun.

 

[TOBASH]

Perfect time to look for leaks. Rear engine, input tranny, rear tranny, xfer case.