bolt question .... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dogman · 02-22-2005, 01:57 AM

This question is for the bolt located in the front of the block near the timing cover on the lower passenger side. http://67-72chevytrucks.com/vboard/s....php3?t=138417 It is the bolt in the first pic . I am in the process of changing motors . The first motor that was in originally in the truck did not have this bolt , and there where no oil leaks . Why is this ?

jhow66 · 02-22-2005, 02:13 AM

BB or SB?

dyingdeadman · 02-22-2005, 03:50 AM

did not have it, as in it was missing, just a hole where the bolt is suppossed to be, or just never was a bolt there?

Brainchild · 02-22-2005, 05:01 AM

that bolt goes directly into an oil passage.If you read the post you linked to you will find that a long bolt inserted in there will hold the fuelpump rod in place while changing hte pump.Remove the longer bolt,replaqce with a short bolt and it stops the leaking.
Some one prolly changed th fuelpump,and forgot to put hte short bolt back in.I've done it myself

dogman · 02-22-2005, 05:47 AM

No there was not a bolt there at all . I bought the truck with that motor and ran it for awhile . Recently when I pulled it out , there was no bolt present

It is a small block (350)

Longhorn Man · 02-22-2005, 05:52 AM

some of the engines were never drilled for that. Can't say why.

dogman · 02-22-2005, 10:35 PM

Well this one was drilled for it . It looks identical to the one in the picture .

jimfulco · 02-27-2005, 12:56 AM

That hole is not always drilled all the way into the fuel pump rod passage. Sometimes you have to put a long bolt in it & turn it all the way down with a wrench to break out the backside of the hole into the fuel pump cavity before you can use it to hold the push rod. It will then leak after you put the new pump on, so that's when you need the short bolt & some sealer.

02-22-2005, 01:57 AM	#1
dogman Registered User Join Date: Feb 2002 Location: Dallas,TX Posts: 164	bolt question .... This question is for the bolt located in the front of the block near the timing cover on the lower passenger side. http://67-72chevytrucks.com/vboard/s....php3?t=138417 It is the bolt in the first pic . I am in the process of changing motors . The first motor that was in originally in the truck did not have this bolt , and there where no oil leaks . Why is this ?

02-22-2005, 02:13 AM	#2
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	BB or SB? __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

02-22-2005, 03:50 AM	#3
dyingdeadman Registered User Join Date: Aug 2004 Location: san marcos,tx Posts: 266	did not have it, as in it was missing, just a hole where the bolt is suppossed to be, or just never was a bolt there? __________________ 72 GMC sierra 3/4 ton 402 bb 68 GMC 3/4 ton 2010 camaro rs: daily driver

02-22-2005, 05:01 AM	#4
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	that bolt goes directly into an oil passage.If you read the post you linked to you will find that a long bolt inserted in there will hold the fuelpump rod in place while changing hte pump.Remove the longer bolt,replaqce with a short bolt and it stops the leaking. Some one prolly changed th fuelpump,and forgot to put hte short bolt back in.I've done it myself __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website

02-22-2005, 05:47 AM	#5
dogman Registered User Join Date: Feb 2002 Location: Dallas,TX Posts: 164	No there was not a bolt there at all . I bought the truck with that motor and ran it for awhile . Recently when I pulled it out , there was no bolt present It is a small block (350)

02-22-2005, 05:52 AM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	some of the engines were never drilled for that. Can't say why.

02-22-2005, 10:35 PM	#7
dogman Registered User Join Date: Feb 2002 Location: Dallas,TX Posts: 164	Well this one was drilled for it . It looks identical to the one in the picture .

02-27-2005, 12:56 AM	#8
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	That hole is not always drilled all the way into the fuel pump rod passage. Sometimes you have to put a long bolt in it & turn it all the way down with a wrench to break out the backside of the hole into the fuel pump cavity before you can use it to hold the push rod. It will then leak after you put the new pump on, so that's when you need the short bolt & some sealer.



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