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06-15-2024, 01:56 AM
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#1 |
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Senior Member
 
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,387
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What size is the distributor hold down bolt
Is it distributor hold down bolt 1/2 or 7/16?
Thanks
__________________
RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234 |
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06-15-2024, 09:43 AM
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#2 |
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Registered User
Join Date: Apr 2021
Location: Santa Cruz, NM
Posts: 122
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Re: What size is the distributor hold down bolt
It should be 3/8-16 with 9/16 hex head.
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06-15-2024, 09:54 AM
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#3 |
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Registered User
Join Date: Apr 2022
Location: Miami
Posts: 247
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Re: What size is the distributor hold down bolt
OEM 3/8 but various lengths, depending on distributor, clamp style, and manifold.
Always check that distributor has clearance to oil pump shaft by installing without gasket. Should sit flush on manifold, then, add your distributor gasket. |
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06-15-2024, 11:49 AM
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#4 |
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Senior Member
 
Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,692
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Re: What size is the distributor hold down bolt
Mine has a: (GR 5) 9/16” hex flange head bolt. The bolt threads are 3/8-16 x 9/16”, and the head is stamped “E”.
__________________
Tony 1971 C10 Custom Deluxe SWB 402/400TH A/C I developed an assembly information kit for restoring my truck from nuts and bolts. It's written in Assy. order, short & simple, packed with all OEM hardware ID; castings; part ID; 100s of part numbers; wiring simple - Resource, and trivial too. Much info. applies to all 67-72 GM, A/C vehicles, esp. trucks W/O saying. Full search ability, including to 700+ images of illus., parts, charts, Assy., points of interest, cab, bed, & front clip cart plans- Specials and cores were serviced out and R excluded e.g. front/rear glass, body/paint, engine core, rebuilt hinges, steering box, trans, etc. The project was in-line with long former professions developing process, policy, specs, demo, written for novices, admin., policy, engineers, development, systems & test - Public & govt 2, gross. Sell soft copy cheaply, PM if interested.Build thread:https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
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06-15-2024, 12:00 PM
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#5 |
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70+ ( Old Skool Club )
Join Date: Nov 2003
Location: Saskatoon, Saskatchewan ,Canada
Posts: 9,231
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Re: What size is the distributor hold down bolt
From experience use a factory bolt and clamp as some of the aftrmarket ones are crap and will loosen and let your distributor move around.
__________________
1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " In the end, we only regret the chances we didnt take " " Time is the only currency we spend without knowing the balance, use it wisely ." .. |
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06-15-2024, 12:25 PM
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#6 | |
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Registered User
Join Date: Apr 2022
Location: Miami
Posts: 247
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Re: What size is the distributor hold down bolt
Quote:
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06-15-2024, 01:50 PM
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#7 |
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Senior Member
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,387
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Re: What size is the distributor hold down bolt
Thanks for the info. Going to pick up a set of these when I need to adjust timing etc.
https://www.amazon.com/gp/product/B0...KIKX0DER&psc=1
__________________
RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234 |
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06-15-2024, 04:13 PM
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#8 | |
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Registered User
Join Date: Dec 2017
Location: Elkhart, Texas
Posts: 2,108
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Re: What size is the distributor hold down bolt
Quote:
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06-15-2024, 04:23 PM
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#9 | |
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Registered User
Join Date: Apr 2022
Location: Miami
Posts: 247
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Re: What size is the distributor hold down bolt
Quote:
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06-15-2024, 07:15 PM
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#10 | |
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Senior Member
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,387
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Re: What size is the distributor hold down bolt
Quote:
Thanks!
__________________
RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234 |
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06-16-2024, 01:28 AM
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#11 | |
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Senior Member
Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,692
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Re: What size is the distributor hold down bolt
Quote:
__________________
Tony 1971 C10 Custom Deluxe SWB 402/400TH A/C I developed an assembly information kit for restoring my truck from nuts and bolts. It's written in Assy. order, short & simple, packed with all OEM hardware ID; castings; part ID; 100s of part numbers; wiring simple - Resource, and trivial too. Much info. applies to all 67-72 GM, A/C vehicles, esp. trucks W/O saying. Full search ability, including to 700+ images of illus., parts, charts, Assy., points of interest, cab, bed, & front clip cart plans- Specials and cores were serviced out and R excluded e.g. front/rear glass, body/paint, engine core, rebuilt hinges, steering box, trans, etc. The project was in-line with long former professions developing process, policy, specs, demo, written for novices, admin., policy, engineers, development, systems & test - Public & govt 2, gross. Sell soft copy cheaply, PM if interested.Build thread:https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
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