Riddle me this: Napa's confused about my clutch/flywheel

Get answers to Bronco-related technical issues.

Riddle me this: Napa's confused about my clutch/flywheel

Postby laffycaffi » Wed May 15, 2019 2:24 pm

Per my other post about pulling my transmission (to change out my clutch)...

I dropped off my flywheel and got a call back, the guy at Napa is perplexed. Here's what he told me:

1. Flywheel is not serviceable. The starter is hitting it too deep. It's hitting the flywheel itself and not just the teeth.
2. His catalog shows that the small block calls for an 11" clutch, but the wear patters seems like I have a 10" clutch installed. That said, the flywheel that I dropped off is a 164 tooth flywheel.
3. Given the damage that the starter is putting on the flywheel makes him suspect it really needs a 157 tooth / 10 inch clutch, but that goes against what the catalog suggests.

So he's confused and I personally have no idea. I did notice that my new clutch which I ordered from them looks larger, but I haven't had a chance to measure it yet. Maybe I had a 10" clutch on a 164 tooth flywheel? Is this possible? And does that even relate to the damage that the starter has put on the flywheel?

Not sure what I need to do. Insights appreciated.
User avatar
laffycaffi
Official CCB Member
Official CCB Member
 
Posts: 278
Joined: Mon Oct 11, 2010 4:09 pm

Re: Riddle me this: Napa's confused about my clutch/flywheel

Postby laffycaffi » Wed May 15, 2019 2:43 pm

Pics

New on the right
Image

New on the left
Image

Sent from my SM-N950U using Tapatalk
User avatar
laffycaffi
Official CCB Member
Official CCB Member
 
Posts: 278
Joined: Mon Oct 11, 2010 4:09 pm

Re: Riddle me this: Napa's confused about my clutch/flywheel

Postby phyler » Wed May 15, 2019 2:48 pm

They don't make the 10" clutch anymore. But it sounds like it has already been swapped over to the 11" at some point.

Might just need a later Starter to work better.

Hopefully Viper will chime in for you as I know he's answered this on the national board.

Adam

Sent from my Pixel 2 using Tapatalk
1975 Ranger Edition that I've had longer than I've been without it.
phyler
CCB Admin
 
Posts: 1202
Joined: Sat Oct 02, 2010 8:41 pm
Location: Erie

Re: Riddle me this: Napa's confused about my clutch/flywheel

Postby laffycaffi » Wed May 15, 2019 2:50 pm

Thanks. If it matters, I did replace the starter a few years ago. Any chance I installed the wrong starter? I just ordered it from the local parts store and trusted that they gave me the right one. (?)

Sent from my SM-N950U using Tapatalk
User avatar
laffycaffi
Official CCB Member
Official CCB Member
 
Posts: 278
Joined: Mon Oct 11, 2010 4:09 pm

Re: Riddle me this: Napa's confused about my clutch/flywheel

Postby phyler » Wed May 15, 2019 2:52 pm

laffycaffi wrote:Thanks. If it matters, I did replace the starter a few years ago. Any chance I installed the wrong starter? I just ordered it from the local parts store and trusted that they gave me the right one. (?)

Sent from my SM-N950U using Tapatalk
They probably gave you the right one for your 72 but assumed it had stock parts. I'm not sure if there is a difference in manual starters between the years. There is a diff between the starters for manual vs automatic.

Sent from my Pixel 2 using Tapatalk
1975 Ranger Edition that I've had longer than I've been without it.
phyler
CCB Admin
 
Posts: 1202
Joined: Sat Oct 02, 2010 8:41 pm
Location: Erie

Re: Riddle me this: Napa's confused about my clutch/flywheel

Postby Viperwolf1 » Wed May 15, 2019 3:15 pm

You should have an 11" clutch and 164 tooth flywheel. All V8 Broncos had that with a manual trans. A manual starter is a manual starter. No difference for different size flywheels. The bell housing and block plate have different starter bolt holes that move the starter inward on the 157 tooth stuff. If you had any one of these parts it would not bolt together and the starter could not engage the ring gear.

I'd like to see a pic of the starter wear on the ring gear.
User avatar
Viperwolf1
Official CCB Member
Official CCB Member
 
Posts: 1485
Joined: Tue May 07, 2013 9:37 pm

Re: Riddle me this: Napa's confused about my clutch/flywheel

Postby laffycaffi » Sun May 19, 2019 8:06 pm

Turns out there was no damage to my flywheel from the starter. Talked to a different guy at Napa who said he has no idea what the first guy was talking about. However my flywheel was still not serviceable, so I got a new one.

Sent from my SM-N950U using Tapatalk
User avatar
laffycaffi
Official CCB Member
Official CCB Member
 
Posts: 278
Joined: Mon Oct 11, 2010 4:09 pm

Re: Riddle me this: Napa's confused about my clutch/flywheel

Postby Stubborn3 » Tue May 21, 2019 12:46 pm

Basically
You do not have the required permissions to view the files attached to this post.
'72 sport, 351 Cleveland, NP435, twin-sticked 20, unknown lift- if any, 35" KM2s siped by B.O.B, custom rust and dents, 2 kid seats.
User avatar
Stubborn3
Official CCB Member
Official CCB Member
 
Posts: 174
Joined: Mon Sep 17, 2012 2:09 am
Location: Denver/Leadville, Coloradical

Re: Riddle me this: Napa's confused about my clutch/flywheel

Postby laffycaffi » Tue May 21, 2019 1:43 pm

Stubborn3 wrote:Basically
Haha!!! Yep

Sent from my SM-N950U using Tapatalk
User avatar
laffycaffi
Official CCB Member
Official CCB Member
 
Posts: 278
Joined: Mon Oct 11, 2010 4:09 pm

Re: Riddle me this: Napa's confused about my clutch/flywheel

Postby Jesus_man » Thu May 23, 2019 7:51 am

Oh, and I need some of that blinker fluid that's on sale!
1973 Bronco, 351 SEFI, Locked, discs, 35's ZF-5spd and Atlas 4spd. 235:1 Crawl Ratio. It may be ugly, but it's slow.
http://www.ucora.org
User avatar
Jesus_man
Official CCB Member
Official CCB Member
 
Posts: 5987
Joined: Thu Nov 11, 2010 9:36 am
Location: California


Return to General 4x4 Technical

Who is online

Users browsing this forum: No registered users and 3 guests

cron