starter issues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

OlBlue85 · 05-11-2011, 08:05 PM

okay so the starter on my sb 350 made a hell of a noise, i took it off and grabbed the one of my spare motor i put it on and a shim that came off the old one went to start it same horrible grinding noise WHAT DID I DO WRONG obvioulsy not a direct bolt on part never had to change a starter befor HELP ME PLEASE!!!!

Eyegore · 05-11-2011, 08:22 PM

When you say horrible noise, be more specific. Is making a loud grinding like the teeth are not lining up or is it trying to turn over and grinding at that point?

Tom

**PRattenbury** · 05-11-2011, 08:34 PM

Busted flex plate? That would be horrible. Been there, done that.

**old Rusty C10** · 05-11-2011, 09:28 PM

see if you can roll the truck up a few feet and try it that should help rule out the flex plate.. bering broken.. did younotice if the teeth were ok on the flex plate?

OlBlue85 · 05-12-2011, 02:45 AM

The teeth are grinding, I'm going to take out the shim and roll it forward a bit I layed under when buddy tried starting it and its not lining up
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SoCalKris · 05-12-2011, 04:47 AM

Is the Flex plate worn, are the teeth in bad shape. Is the starter bindex not pulling out far enought. Have you tried painting the flex plate with spray paint to see where its clashing.

OlBlue85 · 05-12-2011, 05:30 AM

You can see on the flex plate were it is hitting it all the teeth are fine and the gear In the starter comes out far enough it just makes one heck of a grinding noise do I have to line it up some how should I take the shim out and see what happens what's the worst I could wreak I have a complete parts truck not to worried
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tucsonjwt · 05-12-2011, 07:17 AM

All of the mechanics I have talked to about starters have told me that they have never used shims when installing starters, which makes me wonder why the shims are included with a new starter. Sounds to me like a bad starter, not extending far enough to completely engage. I have never had much luck with rebuilt starters, so I finally bought a GM high torque mini starter which has worked very well. The only thing I don't like about it is that if the truck does not start on the first attempt you have to wait a few seconds until the starter winds down before starting it again.

silvereagle07 · 05-12-2011, 07:41 AM

Shimming a starter properly makes a difference. There should be a gap between the flexplate and the bendix for proper engagement.
http://www.superchevy.com/technical/...ing/index.html
http://www.marinemechanic.com/site/page169.html

motornut · 05-12-2011, 12:55 PM

mine was grinding and it was the flex plate and starter
both were worn quite a bit
try using the starter outa the truck with booster cables
make sure it comes out and turns freely
do it quite a few times

05-11-2011, 08:05 PM	#1
OlBlue85 Registered User Join Date: Jan 2011 Location: Norwich Ontario Posts: 25	starter issues okay so the starter on my sb 350 made a hell of a noise, i took it off and grabbed the one of my spare motor i put it on and a shim that came off the old one went to start it same horrible grinding noise WHAT DID I DO WRONG obvioulsy not a direct bolt on part never had to change a starter befor HELP ME PLEASE!!!!

05-11-2011, 08:22 PM	#2
Eyegore What Hump? Join Date: Apr 2003 Location: New River AZ Posts: 2,009	Re: starter issues When you say horrible noise, be more specific. Is making a loud grinding like the teeth are not lining up or is it trying to turn over and grinding at that point? Tom __________________ Lil red 86 c-10 99 Sub 78 Camper Special w/ 454

05-11-2011, 08:34 PM	#3
PRattenbury Senior Member Join Date: Feb 2010 Location: Maumelle, AR Posts: 478	Re: starter issues Busted flex plate? That would be horrible. Been there, done that.

05-11-2011, 09:28 PM	#4
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,277	Re: starter issues see if you can roll the truck up a few feet and try it that should help rule out the flex plate.. bering broken.. did younotice if the teeth were ok on the flex plate? __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

05-12-2011, 02:45 AM	#5
OlBlue85 Registered User Join Date: Jan 2011 Location: Norwich Ontario Posts: 25	Re: starter issues The teeth are grinding, I'm going to take out the shim and roll it forward a bit I layed under when buddy tried starting it and its not lining up Posted via Mobile Device

05-12-2011, 04:47 AM	#6
SoCalKris Registered User Join Date: May 2011 Location: Spring Valley, Ca. Posts: 26	Re: starter issues Is the Flex plate worn, are the teeth in bad shape. Is the starter bindex not pulling out far enought. Have you tried painting the flex plate with spray paint to see where its clashing.

05-12-2011, 05:30 AM	#7
OlBlue85 Registered User Join Date: Jan 2011 Location: Norwich Ontario Posts: 25	Re: starter issues You can see on the flex plate were it is hitting it all the teeth are fine and the gear In the starter comes out far enough it just makes one heck of a grinding noise do I have to line it up some how should I take the shim out and see what happens what's the worst I could wreak I have a complete parts truck not to worried Posted via Mobile Device

05-12-2011, 07:17 AM	#8
tucsonjwt Registered User Join Date: Jul 2007 Location: Tucson, AZ Posts: 3,188	Re: starter issues All of the mechanics I have talked to about starters have told me that they have never used shims when installing starters, which makes me wonder why the shims are included with a new starter. Sounds to me like a bad starter, not extending far enough to completely engage. I have never had much luck with rebuilt starters, so I finally bought a GM high torque mini starter which has worked very well. The only thing I don't like about it is that if the truck does not start on the first attempt you have to wait a few seconds until the starter winds down before starting it again.

05-12-2011, 07:41 AM	#9
silvereagle07 Registered User Join Date: Sep 2008 Location: Bailey, NC Posts: 2,462	Re: starter issues Shimming a starter properly makes a difference. There should be a gap between the flexplate and the bendix for proper engagement. http://www.superchevy.com/technical/...ing/index.html http://www.marinemechanic.com/site/page169.html __________________ Jeramy '84 GMC project truck '85 Chevy 4X4 SOLD '07 Chevy Trailblazer SS 5th Annual SHPHC Car/Truck Show Pics http://67-72chevytrucks.com/vboard/s...d.php?t=543605 UPDATED PICS! CHECK 'EM OUT

05-12-2011, 12:55 PM	#10
motornut 78K & 79C Jimmys Join Date: Nov 2009 Location: Ottawa Ont CANADA Posts: 7,901	Re: starter issues mine was grinding and it was the flex plate and starter both were worn quite a bit try using the starter outa the truck with booster cables make sure it comes out and turns freely do it quite a few times Attached Images __________________ John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350



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