shimming the starter, anyone done it? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TonyM · 07-10-2002, 05:36 PM

Subject says it all. I would rather try this myself if it is not too complicated. Or should I let a professional do it? Any advice?
Thanks in advance, Tony

68 with 350 TPI · 07-10-2002, 06:07 PM

The shims go in between the starter and the block and its pretty easy to do.

I got some shims at the local parts store for mine

BLAZERMAN · 07-10-2002, 09:27 PM

It's alot of trial and error, I went thru this same thing a few weeks ago and am now about to pull the motor to replace the flexplate and take care of a crack in the block, if your starter drive is to close to the ring gear use a double .020 shim and if that doesnt do it try and .040 , if its still not right use both.

If the starter is to far away from the ring gear use single shims on the outside bolt using the same sequence.

If all you can find are double shims you can cut them down the middle to use as singles.

Also found this very interesting to anyone having starter problems.
http://www.egrproducts.com/html/tech_tip_8.html

billogna · 07-10-2002, 10:15 PM

Adding to Blazerman's advice, another trick is to use a 1/8" allen wrench as a guage between the starter's armature shaft and the outside of the flywheel/ flexplate teeth.

07-10-2002, 05:36 PM	#1
TonyM Registered User Join Date: Jan 2000 Location: British Columbia, Canada Posts: 208	shimming the starter, anyone done it? Subject says it all. I would rather try this myself if it is not too complicated. Or should I let a professional do it? Any advice? Thanks in advance, Tony __________________ 68GMC in family since new Victoria, B.C. Canada

07-10-2002, 06:07 PM	#2
68 with 350 TPI Registered User Join Date: May 2002 Location: Wingate NC Posts: 456	The shims go in between the starter and the block and its pretty easy to do. I got some shims at the local parts store for mine __________________ Life is good with a 6-71 supercharged 355 in a 72 camaro

07-10-2002, 09:27 PM	#3
BLAZERMAN Currently Blazerless Join Date: Apr 2000 Location: St. Joseph Mo. Posts: 4,828	It's alot of trial and error, I went thru this same thing a few weeks ago and am now about to pull the motor to replace the flexplate and take care of a crack in the block, if your starter drive is to close to the ring gear use a double .020 shim and if that doesnt do it try and .040 , if its still not right use both. If the starter is to far away from the ring gear use single shims on the outside bolt using the same sequence. If all you can find are double shims you can cut them down the middle to use as singles. Also found this very interesting to anyone having starter problems. http://www.egrproducts.com/html/tech_tip_8.html __________________ 1972 C/30 133" W.B. C&C 1970 GMC 3500 157" W.B. single wheel C&C

07-10-2002, 10:15 PM	#4
billogna Registered User Join Date: Apr 2002 Location: Choctaw, OK Posts: 235	Adding to Blazerman's advice, another trick is to use a 1/8" allen wrench as a guage between the starter's armature shaft and the outside of the flywheel/ flexplate teeth. __________________ '69 Chev Cust/10 swb, 350/700R4, 5"/6" '70 Chev C10 swb, 67 front, 454/700r4, 4"/5" '73 Chev stepper, 350/3 spd '84 Chev K20 350/4 spd '91 GMC 1500 Suburban 4x4, 350/700R4

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