6066 (1960-1966) GMC Truck Club Bitcoin now accepted here! 
Pay Dues
Pay Dues or become a Site Supporter
 



Go Back   6066 (1960-1966) GMC Truck Club > 6066 GMC Truck Club Forum > GMC V6 and V12 Engines


GMC V6 and V12 Engines Engine repair and rebuilding

Reply
 
Thread Tools
  #1  
Old October 31st, 2018, 04:41 AM
LifeLongWNYer's Avatar
LifeLongWNYer LifeLongWNYer is offline
Junior Member
 
Join Date: Jan 2013
Location: Rush ( Slightly south of Rochester ) NY
Truck: '64 GMC K1500
Posts: 5
Rep Power: 0
LifeLongWNYer is on a distinguished road
Default 305 Starter Replacement, Shims; yes or no?

The starter on my 305 ( '64 K1500 ) has been acting up, last week it quit, so I decided to remove it and have it rebuilt. Well, it had more problems than I expected, and the rebuilder replaced virtually every part, except for the housing.

When I pulled the starter out, I ended up with two shims, the rectangular ones, with a rounded notch and a hole at one end. The rebuilder, who has been in business for quite a while was surprized when I mentioned the shims, and said he'd never seen them used with a starter that mounts as the 305 does, rather he usually sees them when the started is mounted with two bolts both of which go up, from the bottom of the starter, and vertically into the block.

In any event, he said that without information to the contrary, since the shims came out of the starter, I should put them back in. ( I am pretty sure one shim was between the starter nose and the face of the flywheel housing, over the top and the bottom starter mounting bolts, I could see the imprints of them in the stains on the starter mounting face. )

Sooo, since the starter is essentially a new starter, should I put the shims back in, or not? How do I know if one shim ( at each position ) is enough, too much, or not enough. By the way, the rebuilder said the wear pattern on the starter drive gear was "very good", nice and even, and it indicated no alignment problems, which he said is another reason to reuse the shims.

So what say the experts?


JBP
Rush, NY
__________________
Jim Princehorn
Rochester, NY

'15 GMC 1500 - 4WD
'64 GMC K1500 - 4WD
'77 Jeep CJ5 - 4WD
'78 Honda 550 - 1 WD
Reply With Quote
  #2  
Old October 31st, 2018, 03:29 PM
FetchMeAPepsi's Avatar
FetchMeAPepsi FetchMeAPepsi is offline
-= Dues Paid =-
 
Join Date: Jan 2013
Location: Edmond, Ks
Truck: 1962 4x4 GMC CECILIA
Posts: 1,437
Rep Power: 402
FetchMeAPepsi will become famous soon enough
Default Re: 305 Starter Replacement, Shims; yes or no?

If it was shimmed and the wear was good to begin with, I'd shim it when I put it back in. It's likely it's been shimmed since it was new since no one takes that kind of care anymore in auto work.

Better safe than sorry because it's digging in at a weird angle.
__________________
Step by steps:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Some people are like slinkys. Not worth much but funny as heck when pushed down stairs.
__________________
If the women don't find you handsome, they should at least find you handy.
Reply With Quote
  #3  
Old November 1st, 2018, 12:05 AM
George Bongert George Bongert is offline
Senior Member
 
Join Date: Jan 2013
Location: Oshkosh Wisconsin
Truck: Former owner Repowered by GMC 305 V-6, 1963 Chevy 30 Series SM420 Long Bed (9') Step/Fenderside
Posts: 134
Rep Power: 80
George Bongert will become famous soon enoughGeorge Bongert will become famous soon enough
Default Re: 305 Starter Replacement, Shims; yes or no?

I hate to disagree with you Fetch, but these type of starters were never shimmed right from the factory. The shim(s) may be causing the very problem he is experiencing. Leave the shims out. These starters were not designed to be shimmed. The other style, (those that bolt to bottom side of the engine block with mounting bolts facing upwards) do require shimming for proper starter drive pinion engagement.
Reply With Quote
  #4  
Old November 1st, 2018, 02:53 AM
LEWISMATKIN's Avatar
LEWISMATKIN LEWISMATKIN is offline
-= Site Supporter =-
 
Join Date: Jan 2013
Location: RIDGE MANOR, FLORIDA
Truck: 1965 1002 GMC V6-305E
Age: 59
Posts: 89
Rep Power: 63
LEWISMATKIN is on a distinguished road
Default Re: 305 Starter Replacement, Shims; yes or no?

Whoever shimmed that starter did not know what they were doing. No v6 starter i have ever seen needed shims because it bolts directly to the bell housing. In the future, you can get a replacement from napa (their # is 213-4841).
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote
  #5  
Old November 1st, 2018, 11:53 PM
James James is offline
Tinkering on old trucks.
 
Join Date: Jun 2013
Location: Greer, SC
Truck: 1964 GMC 1500 2wd
Age: 64
Posts: 134
Rep Power: 69
James is on a distinguished road
Default Re: 305 Starter Replacement, Shims; yes or no?

Quote:
Originally Posted by LEWISMATKIN View Post
Whoever shimmed that starter did not know what they were doing. No v6 starter i have ever seen needed shims because it bolts directly to the bell housing. In the future, you can get a replacement from napa (their # is 213-4841).
That part number does not show up on NAPA web site.
Reply With Quote
  #6  
Old November 2nd, 2018, 01:02 AM
FetchMeAPepsi's Avatar
FetchMeAPepsi FetchMeAPepsi is offline
-= Dues Paid =-
 
Join Date: Jan 2013
Location: Edmond, Ks
Truck: 1962 4x4 GMC CECILIA
Posts: 1,437
Rep Power: 402
FetchMeAPepsi will become famous soon enough
Default Re: 305 Starter Replacement, Shims; yes or no?

Quote:
Originally Posted by George Bongert View Post
I hate to disagree with you Fetch...

Don't worry about it! I'm still "the new kid" when it comes to working on trucks. And I like to put things back like they were. He did say it was wearing right (I mean correctly) before so I erred on the side of caution.

Jim, looks like all the old timers say ditch the shims. I'd like to change my vote to be that, things being what they are.



Also something else: I think I read somewhere that you could use a Chevy starter and just change the head on it or the case on it or something and it'll work instead of getting it rebuilt.
__________________
Step by steps:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Some people are like slinkys. Not worth much but funny as heck when pushed down stairs.
__________________
If the women don't find you handsome, they should at least find you handy.
Reply With Quote
  #7  
Old November 2nd, 2018, 01:15 AM
LEWISMATKIN's Avatar
LEWISMATKIN LEWISMATKIN is offline
-= Site Supporter =-
 
Join Date: Jan 2013
Location: RIDGE MANOR, FLORIDA
Truck: 1965 1002 GMC V6-305E
Age: 59
Posts: 89
Rep Power: 63
LEWISMATKIN is on a distinguished road
Default Re: 305 Starter Replacement, Shims; yes or no?

James, the reason it doesn't come up on the NAPA website is that you have to look it up in the medium/heavy duty truck section of the program. The starter carries the same drive/lever housing as the 366/427 Chev engines w/manual transmission. Besides, I have over 44 yrs. of parts experience that may give me a slight advantage than most people who try to look up their parts.
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote
  #8  
Old November 2nd, 2018, 02:22 AM
LifeLongWNYer's Avatar
LifeLongWNYer LifeLongWNYer is offline
Junior Member
 
Join Date: Jan 2013
Location: Rush ( Slightly south of Rochester ) NY
Truck: '64 GMC K1500
Posts: 5
Rep Power: 0
LifeLongWNYer is on a distinguished road
Default Re: 305 Starter Replacement, Shims; yes or no?

Thanks for the advice guys, I wish I'd waited longer to put the starter back in.... I read the reply that said to put the shims back in, and the rebuilder said to do it, so that is what I did.

It won't be a big job to loosen the starter and remove the shims, so the next time we get a decent day, I'll pull them out. It does start nicely now, with the shims in, sounds just like it should, but I will pull them out anyway.

I am the second owner of this truck, ( 14,698 miles ) but there is no one left in the fire department that I bought it from who remembers anything about it, so I can't find out why the shims were there. It took an extra step to obtain them and put them in, so I presume it was one of those "it made sense at the time" deals.

Thanks for the help guys 'n gals,



JBP
__________________
Jim Princehorn
Rochester, NY

'15 GMC 1500 - 4WD
'64 GMC K1500 - 4WD
'77 Jeep CJ5 - 4WD
'78 Honda 550 - 1 WD
Reply With Quote
  #9  
Old November 2nd, 2018, 02:53 AM
bigblockv6 bigblockv6 is offline
-= Dues Paid =-
 
Join Date: Jan 2013
Location: Rohnert Park, ca.
Truck: 1968 KM2500
Posts: 1,234
Rep Power: 352
bigblockv6 will become famous soon enough
Default Re: 305 Starter Replacement, Shims; yes or no?


The starter carries the same drive/lever housing as the 366/427 Chev engines w/manual transmission. Lewis is correct on that, years back when did my 478M conversion I bought a bigger starter on eBay that both fit 401 V6 and 427 V8 truck applications.
Reply With Quote
  #10  
Old November 3rd, 2018, 01:42 AM
LifeLongWNYer's Avatar
LifeLongWNYer LifeLongWNYer is offline
Junior Member
 
Join Date: Jan 2013
Location: Rush ( Slightly south of Rochester ) NY
Truck: '64 GMC K1500
Posts: 5
Rep Power: 0
LifeLongWNYer is on a distinguished road
Default Re: 305 Starter Replacement, Shims; yes or no?

Thanks, BigBlock, that got me thinking.... I have a 401, which I intended to drop into the '64, but never quite got around to it. I will have to go look at that starter setup.


Thanks, JBP
__________________
Jim Princehorn
Rochester, NY

'15 GMC 1500 - 4WD
'64 GMC K1500 - 4WD
'77 Jeep CJ5 - 4WD
'78 Honda 550 - 1 WD
Reply With Quote
Reply

Bookmarks

Thread Tools

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
starter shims Texas63GMC GMC V6 and V12 Engines 5 September 27th, 2015 08:20 AM
looking for a 305 starter Schroer1962v3000Dump 1960-1966 GMC Marketplace 0 August 19th, 2014 01:20 AM
Starter/Flywheel Ring Gear Replacement Clarke GMC V6 and V12 Engines 3 March 6th, 2013 03:12 AM
Re: 305 V6 starter solenoid Archiver Previous Forum Posts 0 April 21st, 2009 04:44 AM
305 V6 starter solenoid Archiver Previous Forum Posts 0 April 20th, 2009 02:42 AM


All times are GMT +1. The time now is 03:42 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd 108|0
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.