The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-26-2016, 04:25 PM   #1
Bandit67
Registered User
 
Join Date: Jul 2016
Location: Phoenix Arizona
Posts: 10
Upsidedown fuel pump??

Guys on all the video's of fuel pump replacement I've seen, the fuel and vent lines are on the underside. I've a 1986 Custom Deluxe and removed the fuel pump with the gas and vent line on the topside. Now I'm having issues holding the pushrod up, to get the pump lever under the pushrod. I've asked around and the consensus appears to be that I'm trying to install it upside down! Also there's no screw on the block to screw into to hold the pushrod up and the smog pump bracket hole is a blind hole so that's not it either. Any help would be appreciated.
thanks
Bandit67 is offline   Reply With Quote
Old 07-26-2016, 08:27 PM   #2
superdav
Registered User
 
Join Date: May 2016
Location: Arkansas
Posts: 200
Re: Upsidedown fuel pump??

Upside down would be hard to do, use grease or the bolt in the front to hold the pushrod in the block while you put the pump on. also you may have to turn the engine to get the lobe up or you'll be in for a fight getting it in
superdav is offline   Reply With Quote
Old 07-26-2016, 09:46 PM   #3
chuychevy82lwb
Registered User
 
Join Date: Mar 2013
Location: Taylor tx 76574
Posts: 135
Re: Upsidedown fuel pump??

If you can with one hand put a flat head in there and hold it up and with the other hand slip the pump in but dont get frustrated if you cant do it on the first try took me about 45 min when i swaped it out on my old 350
__________________
82 lwb lsx 5.3/4l60e 12 bolt rear lambo electric blue/ hummer black with house of color flake same colors on the inside with all new upholstery n 22s. " Who said longbeds cant look good "
chuychevy82lwb is offline   Reply With Quote
Old 07-27-2016, 06:19 AM   #4
Mr.Chevy4x4
Registered User
 
Mr.Chevy4x4's Avatar
 
Join Date: Jul 2007
Location: Sims, NC
Posts: 531
Re: Upsidedown fuel pump??

A hacksaw blade works well to hold the shaft up while installing pump. Like this picture I just found on google.

Mike
Attached Images
 
__________________
All things Chevy truck:
1986 SWB "Jolene" boosted 5.3/4l80e project
Mr.Chevy4x4 is offline   Reply With Quote
Old 07-27-2016, 01:32 PM   #5
Bandit67
Registered User
 
Join Date: Jul 2016
Location: Phoenix Arizona
Posts: 10
Re: Upsidedown fuel pump??

Thanks folks, But again the picture posted, shows what I see on the internet and the manual (the fuel inlet, outlet and vent on the underside), mine came off with these fittings on top. Also the hard fuel line comes straight out the top with no bend to bring it from the underside, so looks like OEM.
I can get the fuel pump in as you guys have described but now I'll have to go make a new fuel line.
Bandit67 is offline   Reply With Quote
Old 07-27-2016, 03:07 PM   #6
Desert1957
Registered User
 
Desert1957's Avatar
 
Join Date: Apr 2009
Location: New Freedom Pa.
Posts: 1,335
Re: Upsidedown fuel pump??

Quote:
Originally Posted by Mr.Chevy4x4 View Post
A hacksaw blade works well to hold the shaft up while installing pump. Like this picture I just found on google.

Mike
To hold the shaft in place, bump the motor over until the shaft is all the way up in the block. Remove one of the 3/8 bolts on the front of the engine, its near the fuel pump casting, temporarily install a longer bolt through the hole until it contacts the push-rod, viola its held in place until the pump is tightened down.

Desert
Desert1957 is offline   Reply With Quote
Old 07-27-2016, 03:10 PM   #7
Desert1957
Registered User
 
Desert1957's Avatar
 
Join Date: Apr 2009
Location: New Freedom Pa.
Posts: 1,335
Re: Upsidedown fuel pump??

Name:  Fuel pump driveshaft 2.jpg
Views: 3882
Size:  71.7 KB
Desert1957 is offline   Reply With Quote
Old 07-27-2016, 02:07 PM   #8
mongocanfly
Post Whore

 
mongocanfly's Avatar
 
Join Date: May 2015
Location: Alabama
Posts: 14,658
Re: Upsidedown fuel pump??

I can't say I've seen one like your describing..can you put up a picture of it? what kind of engine do you have? If you've already bought a new pump lay it beside your old one and take us a pic..

Last edited by mongocanfly; 07-27-2016 at 02:24 PM.
mongocanfly is offline   Reply With Quote
Old 07-27-2016, 03:04 PM   #9
Desert1957
Registered User
 
Desert1957's Avatar
 
Join Date: Apr 2009
Location: New Freedom Pa.
Posts: 1,335
Re: Upsidedown fuel pump??

Only pump I have ever seen with fittings on the top was an inline 6 cylinder pump?

more pics needed please

Desert
Desert1957 is offline   Reply With Quote
Old 07-27-2016, 03:59 PM   #10
Bandit67
Registered User
 
Join Date: Jul 2016
Location: Phoenix Arizona
Posts: 10
Re: Upsidedown fuel pump??

Update: Got it, Per SuperDav, I turned the engine a little and it gave me more play room to get the pump lever up and in. Though it's still in the "upside down position", its in as it came out. thanks folks!
Bandit67 is offline   Reply With Quote
Old 07-27-2016, 04:13 PM   #11
Bandit67
Registered User
 
Join Date: Jul 2016
Location: Phoenix Arizona
Posts: 10
Re: Upsidedown fuel pump??

Pictures attached (I think)

Name:  IMG_2845.JPG
Views: 1560
Size:  65.8 KB

Name:  IMG_2862.JPG
Views: 1752
Size:  95.8 KB
Bandit67 is offline   Reply With Quote
Old 07-27-2016, 08:17 PM   #12
Mr.Chevy4x4
Registered User
 
Mr.Chevy4x4's Avatar
 
Join Date: Jul 2007
Location: Sims, NC
Posts: 531
Re: Upsidedown fuel pump??

Back up and give us a wider view of the engine. The bolts in front of the pump don't look to be in the right place. Wondering if someone put a different motor in there?

Mike
__________________
All things Chevy truck:
1986 SWB "Jolene" boosted 5.3/4l80e project
Mr.Chevy4x4 is offline   Reply With Quote
Old 07-27-2016, 09:05 PM   #13
f.monroe
Senior Member
 
f.monroe's Avatar
 
Join Date: May 2004
Location: Caldwell,Tx.
Posts: 3,648
Re: Upsidedown fuel pump??

Was your truck a diesel at some point and someone has installed an oldsmobile engine in place of the diesel? I think old's fuel pumps are upside down looking and on passenger side.

Please post a pic of the engine as it sits in the engine bay.
__________________
Born and proudly residing in a Red State !
f.monroe is offline   Reply With Quote
Old 07-27-2016, 09:44 PM   #14
mongocanfly
Post Whore

 
mongocanfly's Avatar
 
Join Date: May 2015
Location: Alabama
Posts: 14,658
Re: Upsidedown fuel pump??

I think monroe is onto sumpin...http://www.ebay.com/itm/FUEL-PUMP-CA...-/231655082935..listed as Cadillac, pontiac, olds, buick..if that's the case I'm not sure a chevy pump will work just from looking at the picture..
Attached Images
 

Last edited by mongocanfly; 07-27-2016 at 10:08 PM.
mongocanfly is offline   Reply With Quote
Old 07-27-2016, 10:12 PM   #15
Mr.Chevy4x4
Registered User
 
Mr.Chevy4x4's Avatar
 
Join Date: Jul 2007
Location: Sims, NC
Posts: 531
Re: Upsidedown fuel pump??

That's what I was getting at, and was thinking the same thing about the diesel. But the bolts for the pump you showed are top and bottom where his are side to side. I looked for a while at images and couldn't find the exact pump he has.

Mike
__________________
All things Chevy truck:
1986 SWB "Jolene" boosted 5.3/4l80e project
Mr.Chevy4x4 is offline   Reply With Quote
Old 07-28-2016, 09:28 AM   #16
cadillac_al
Registered User
 
Join Date: Oct 2013
Location: Maine
Posts: 2,358
Re: Upsidedown fuel pump??

I wish the Chevy pumps had the fittings on the top. I know the Olds fuel pump ain't gonna work on a Chevy. I'll be happy when this mystery is figured out if we have another fuel pump option. I'm with Mrchevy4x4 that it doesn't look like a SBC because of the bolt holes in the front of the engine.
__________________
76 Chevy K20
76 GMC K15
77 Chevy C10
77 Chevy K10
cadillac_al is offline   Reply With Quote
Old 07-29-2016, 01:33 AM   #17
ron350
Registered User
 
ron350's Avatar
 
Join Date: Apr 2007
Location: Birmingham AL
Posts: 258
Re: Upsidedown fuel pump??

I think someone is fooling with us. LOL
Original poster had to know what motor he has to be able to purchase the pump.
__________________
Stock 75 C10 step side.
350 2 BBL, 350 trans. 150K miles.
ron350 is offline   Reply With Quote
Old 07-29-2016, 05:48 AM   #18
Bandit67
Registered User
 
Join Date: Jul 2016
Location: Phoenix Arizona
Posts: 10
Re: Upsidedown fuel pump??

OK folks, thanks again for all the interest, to my knowledge the motor has not been changed, the vertical bolt holes your looking at on the front of the block are the smog pump bracket holes.
I installed the Airtex Fuel pump for a 4.3l Chevy C-10 with the pump lever in the up position and I should be able to fire her up today to see if I get fuel pumping. I'll keep you posted. Per the request for some pictures of the engine, here you go.
Attached Images
     

Last edited by Bandit67; 07-29-2016 at 05:51 AM. Reason: tried to rotate pictures
Bandit67 is offline   Reply With Quote
Old 07-29-2016, 05:55 AM   #19
mongocanfly
Post Whore

 
mongocanfly's Avatar
 
Join Date: May 2015
Location: Alabama
Posts: 14,658
Re: Upsidedown fuel pump??

4.3....OK ...now were getting somewhere..I think we were all assuming you had a v8....as long as your new pump was identical to your old one you shouldn't have any issues..
mongocanfly is offline   Reply With Quote
Old 07-29-2016, 05:59 AM   #20
Bandit67
Registered User
 
Join Date: Jul 2016
Location: Phoenix Arizona
Posts: 10
Re: Upsidedown fuel pump??

Here's the pump I purchased
Attached Images
 
Bandit67 is offline   Reply With Quote
Old 07-29-2016, 06:10 AM   #21
Bandit67
Registered User
 
Join Date: Jul 2016
Location: Phoenix Arizona
Posts: 10
Re: Upsidedown fuel pump??

I wish it was a V8, but sadly no, just the baby. It's my first break into classic Americana! Over here from Scotland and everyone around me has something in the garage to be working on, so decided
on the old adage...."when in Rome, do as the Romans do' and bought me a chevy truck!
Bandit67 is offline   Reply With Quote
Old 07-29-2016, 06:22 AM   #22
mongocanfly
Post Whore

 
mongocanfly's Avatar
 
Join Date: May 2015
Location: Alabama
Posts: 14,658
Re: Upsidedown fuel pump??

Congrats on your new project...and welcome to our side of the world..hang some truck pictures up on here..lets see what ya got.. want to make it a real project? Can you say LS swap? Hehehe then you'd have a v8

Last edited by mongocanfly; 07-29-2016 at 06:28 AM.
mongocanfly is offline   Reply With Quote
Old 07-29-2016, 07:05 AM   #23
Bandit67
Registered User
 
Join Date: Jul 2016
Location: Phoenix Arizona
Posts: 10
Re: Upsidedown fuel pump??

Here she is:
Attached Images
    
Bandit67 is offline   Reply With Quote
Old 07-29-2016, 07:02 AM   #24
Mr.Chevy4x4
Registered User
 
Mr.Chevy4x4's Avatar
 
Join Date: Jul 2007
Location: Sims, NC
Posts: 531
Re: Upsidedown fuel pump??

Aha, that explains why it looked so different. The 4.3l was only available for 2 years before everything went to fuel injection, and the mechanical pump was eliminated. I've personally never replaced one. The 4.3 fuel pump mounting surface is at an angle similar to the cylinder bank. The small block fuel pump mounting surface is vertical. That's why the pumps are different because they interface with the push rod at different angles. It's also why it wasn't looking right to everyone.

Welcome to the States, welcome to the board, and congrats on your new project. Like Mongo said, show us some pics of the truck.

Mike
__________________
All things Chevy truck:
1986 SWB "Jolene" boosted 5.3/4l80e project
Mr.Chevy4x4 is offline   Reply With Quote
Old 07-29-2016, 07:38 AM   #25
Mr.Chevy4x4
Registered User
 
Mr.Chevy4x4's Avatar
 
Join Date: Jul 2007
Location: Sims, NC
Posts: 531
Re: Upsidedown fuel pump??

Very nice, and super clean! I love the all original look, especially the hub caps. Nice score.

Mike
__________________
All things Chevy truck:
1986 SWB "Jolene" boosted 5.3/4l80e project
Mr.Chevy4x4 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:07 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com