The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-06-2016, 10:40 AM   #1
rclapper
Registered User
 
Join Date: Dec 2016
Location: Milton WI
Posts: 2
1972 Starter dilemna

I have an original 72 C10 LWB 2wd with a 350, 3 speed manual and factory ac with a noisy starter. I had the starter rebuilt but no change, then had a new clutch, pressure plate, flywheel resurfaced and turned the original ring gear over, still no change except now starter engagement is spotty. Removed the starter, had it rechecked, no problem. The starter bolts to the bell housing, 3 bolt pattern and when I crossed the part number it crosses to a 69 Z28 302 starter. There is no starter listed for my application, I've checked everywhere for a replacement. The 'book' replacement version bolts to the block which I have and it does bolt up and appears to be fine, possibly needing a shim but I haven't hooked it up and tried it yet. Anyone heard of such an issue? I've owned many of these trucks but this is a first. This question is long but condensed considerably.
rclapper is offline   Reply With Quote
Old 12-06-2016, 11:46 AM   #2
67 chevelle
Registered User
 
67 chevelle's Avatar
 
Join Date: May 2013
Location: WEST PALM FLORIDA
Posts: 1,174
Re: 1972 Starter dilemna

When installed you should be able to put a paperclip in-between starter gears and flywheel teeth it should be snug not loose , if it wont go you need a shim-shims
__________________
68 Long Fleet , ly6 , turbo 350 , 3-5 drop , original paint , front discs
67 Small window , 7 foot bed , tweaked 6.0 LSX 2004R Medium Olive
58 Apache fleet , 235 , offy intake , dual exhaust , 4 on the floor , red/white
69 Long Fleet , Custom , 6.0, 4l60 , AC , Medium Olive
67 chevelle is offline   Reply With Quote
Old 12-06-2016, 12:08 PM   #3
toolboxchev
Registered User
 
Join Date: Jul 2015
Location: 2nd left past the stump on a dirt road.
Posts: 2,629
Re: 1972 Starter dilemna

Yea, second that on shims, I tend to believe its a bit more than a paper clip in size.

When you buy a new starter there is a small diameter rod usually in the packaging.
toolboxchev is offline   Reply With Quote
Old 12-06-2016, 12:41 PM   #4
bluek5
Registered User
 
bluek5's Avatar
 
Join Date: Apr 2012
Location: Lehi,Utah
Posts: 1,330
Re: 1972 Starter dilemna

A new starter should be easy enough to find.
http://www.rockauto.com/en/catalog/c...le.com+URL+%2F
Attached Images
 
bluek5 is offline   Reply With Quote
Old 12-07-2016, 12:13 PM   #5
rclapper
Registered User
 
Join Date: Dec 2016
Location: Milton WI
Posts: 2
Re: 1972 Starter dilemna

Thanks to all of you for your advice and the starter shown from Blue K5 appears correct but also looks the same as the one that I took off that is noisy. I'm going to proceed with the one that I have that bolts to the block and use your guidelines for shims, I'll keep you posted. As I said my initial post is very condensed, I have the most experienced technician I know scratching his head.
rclapper is offline   Reply With Quote
Old 12-07-2016, 12:56 PM   #6
davepl
Registered User
 
davepl's Avatar
 
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
Re: 1972 Starter dilemna

Is there any chance that your flexplate is on backwards? It's an easy mistake to make if the motor has been out, and it causes perpetual starter engagement issues that can't be fixed with simple shimming. Just something to keep in mind if it doesn't shim out properly.
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
davepl is offline   Reply With Quote
Old 12-07-2016, 01:56 PM   #7
hamjet
Registered User
 
hamjet's Avatar
 
Join Date: Apr 2013
Location: South Westerlo, New York
Posts: 1,325
Re: 1972 Starter dilemna

Quote:
Originally Posted by davepl View Post
Is there any chance that your flexplate is on backwards? It's an easy mistake to make if the motor has been out, and it causes perpetual starter engagement issues that can't be fixed with simple shimming. Just something to keep in mind if it doesn't shim out properly.
Flywheel...
__________________
Thanks, Joe..
1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB.
hamjet is offline   Reply With Quote
Old 12-07-2016, 03:12 PM   #8
davepl
Registered User
 
davepl's Avatar
 
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
Re: 1972 Starter dilemna

Quote:
Originally Posted by hamjet View Post
Flywheel...
That'd make a lot of noise if it were on backwards, so likely not :-) I guess the "3 speed" gave that away, if I had read a little more closely...
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
davepl is offline   Reply With Quote
Old 12-07-2016, 04:50 PM   #9
i82much
Registered User
 
Join Date: Jul 2008
Location: Bowie, MD
Posts: 313
Re: 1972 Starter dilemna

Have you replaced the starter bolts? They are special bolts with knurling to keep the starter from walking back and forth. I put some retaining compound on my new starter bolts to make it as rigid as possible.
i82much is offline   Reply With Quote
Old 12-07-2016, 07:28 PM   #10
hamjet
Registered User
 
hamjet's Avatar
 
Join Date: Apr 2013
Location: South Westerlo, New York
Posts: 1,325
Re: 1972 Starter dilemna

you commented it was noisy and then turned the ring gear over. is that because the ring gear was worn? turning the original ring around may have not helped your problem if it still had bad wear to the teeth. try shims, if that doesn't help it may still be the ring gear..
__________________
Thanks, Joe..
1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB.
hamjet is offline   Reply With Quote
Old 12-10-2016, 08:09 AM   #11
66clow
Registered User
 
66clow's Avatar
 
Join Date: Jun 2012
Location: Clearwater Beach Florida
Posts: 872
Re: 1972 Starter dilemna

Quote:
Originally Posted by i82much View Post
Have you replaced the starter bolts? They are special bolts with knurling to keep the starter from walking back and forth. I put some retaining compound on my new starter bolts to make it as rigid as possible.
I'm about to try this on my starter. I read on another site the correct bolts fixed their problem. Generic bolts allowed the starter to move around.
66clow is offline   Reply With Quote
Old 12-10-2016, 09:46 AM   #12
B. W.
Registered User
 
B. W.'s Avatar
 
Join Date: Nov 2014
Location: Bigfork, Montana
Posts: 1,137
Re: 1972 Starter dilemna

Forget about shimming the three bolt nose starter - it will not adjust the backlash between the starter & the flywheel. (it will adjust depth of engagement but that's not the issue) X2 with hamjet - replace the flywheel
B. W. is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 10:03 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com