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#1
04-18-2023, 02:45 PM
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Fuel Pump Bolts?
Folks,
Did Pontiac use washers from the factory on the 12 point factory bolts for mechanical fuel pumps? If so, what kind? The last time I replaced a fuel pump, I didn't use washers. I just put some sealer on the bolt threads. Thanks Old Joe
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68 Firebird Convertible 68 GTO Clone (Tempest) Wagon |
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#2
04-18-2023, 03:25 PM
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Mine had rubber coated flat washers.
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Ed 1968 GTO (Thanks Mom) 2006 Silverado 2007 Cadillac SRX 2015 Chevy Express  
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#3
04-18-2023, 03:55 PM
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Factory fuel pump bolts are not 12 point.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#4
04-18-2023, 04:06 PM
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Quote:
The factory did use a special sealing washer at least on some.
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
| The Following User Says Thank You to b-man For This Useful Post: | ||
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#5
04-18-2023, 04:37 PM
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I've got (3) 68 engines and all of them have the same 12 point heads on the bolts, so I'm guessing they were correct for 68. That said, only one of them had washers and those were just ordinary hardware store washers. I read somewhere else that Pontiac had rubber coated washers on the fuel pump bolts, but not sure if it was all V8 engines or just certain years.
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68 Firebird Convertible 68 GTO Clone (Tempest) Wagon |
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#6
04-18-2023, 05:14 PM
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I've got a '66 389 that had the 12 pt bolts.
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Greg Reid Palmetto, Georgia |
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#7
04-18-2023, 05:19 PM
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Any pictures of these 12 points? I would like to see the 68 bolts I have never seen one on a 60’s engine.
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#8
04-18-2023, 06:19 PM
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From my 68.
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Ed 1968 GTO (Thanks Mom) 2006 Silverado 2007 Cadillac SRX 2015 Chevy Express
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#9
04-18-2023, 06:32 PM
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Quote:
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68 Firebird Convertible 68 GTO Clone (Tempest) Wagon |
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#10
04-18-2023, 06:42 PM
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Quote:
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#11
04-18-2023, 06:56 PM
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I have never seen such in all many Pontiac motors I have ever had or disassembled!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#12
04-18-2023, 07:05 PM
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No washers handy. I have all my leftover nuts and bolts in about 10 Folgers cans.
I bought a replacement set from our sponsor. Pg 196 in current catalog https://secure.amesperf.com/qilan/De...A&web_access=Y https://secure.amesperf.com/qilan/De...A&web_access=Y
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Ed 1968 GTO (Thanks Mom) 2006 Silverado 2007 Cadillac SRX 2015 Chevy Express
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#13
04-18-2023, 07:08 PM
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Quote:
Quote:
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68 Firebird Convertible 68 GTO Clone (Tempest) Wagon |
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#14
04-18-2023, 07:14 PM
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Quote:
Thanks again Old Joe
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68 Firebird Convertible 68 GTO Clone (Tempest) Wagon |
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#15
04-18-2023, 07:54 PM
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They are 3/8" I believe and wouldn't work in the later 5/16" holes. Dad's 65 GTO has the same fasteners as pictured.
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'65 Tempest 467 3650# 11.30@120.31 |
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#16
04-18-2023, 08:43 PM
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These were pulled off an early 1968 YS engine. They are larger as indicated, 3/8”. They originally had steel washers that had rubber encapsulated on one side. Unfortunately they were deteriorated and I discarded them.
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#17
04-18-2023, 08:47 PM
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Quote:
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#18
04-18-2023, 08:58 PM
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Quote:
The ones I removed were similar to these. |
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#19
04-18-2023, 08:59 PM
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Quote:
At least I think I did...  Its been a few years.
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Ed 1968 GTO (Thanks Mom) 2006 Silverado 2007 Cadillac SRX 2015 Chevy Express
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#20
04-18-2023, 09:15 PM
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Found these pics on the web of what the originals looked like. Again these would have been for the earlier timing cover.
AMK also offers excellent replacements for the bolts and washers… |
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