#1  
Old 10-27-2023, 09:46 PM
DaleO's Avatar
DaleO DaleO is offline
Senior Member
 
Join Date: Feb 2021
Posts: 128
Default

Thank you 78w72, pictures not needed, I see that a 1/2" OD line will fit through there fine and it sounds like it will be able to take the slight curves necessary to hook up and not kink or anything like that. Do you have an in-line filter along with the regulator too? I've usually used in-lines as it seems the in-housing filters (short/long) are so small but I see that Cliff sells pleated filters so they must be able to do the job. It would be a cleaner instl without.

The clockability is a cool feature. I'm really impressed with the quality and heft of the unit.

Just an FYI, the pump I took out had the outlet (bottom) on the same side of the pump as the inlet (1969 428) and I also looked at the pump on the 1969 400 in my other car and the outlet is on the opposite side of the pump. I would not claim either configuration is original or correct or whatever but the lines for both go up between timing chain cover/pump bracket/head.

thank you for your help

  #2  
Old 10-28-2023, 09:50 AM
78w72 78w72 is offline
Ultimate Warrior
 
Join Date: Nov 2007
Location: iowa
Posts: 5,598
Default

Quote:
Originally Posted by DaleO View Post
Thank you 78w72, pictures not needed, I see that a 1/2" OD line will fit through there fine and it sounds like it will be able to take the slight curves necessary to hook up and not kink or anything like that. Do you have an in-line filter along with the regulator too? I've usually used in-lines as it seems the in-housing filters (short/long) are so small but I see that Cliff sells pleated filters so they must be able to do the job. It would be a cleaner instl without.

The clockability is a cool feature. I'm really impressed with the quality and heft of the unit.

Just an FYI, the pump I took out had the outlet (bottom) on the same side of the pump as the inlet (1969 428) and I also looked at the pump on the 1969 400 in my other car and the outlet is on the opposite side of the pump. I would not claim either configuration is original or correct or whatever but the lines for both go up between timing chain cover/pump bracket/head.

thank you for your help
Yes a 1/2" line will fit like the factory routing, even a custom made steel 1/2" line should fit but the braided line makes its an almost straight run under the p/s pump & under/behind the alt with nothing even close to kinking... i did put a slit piece of heater hose over the line where it barely rests against the alt bracket just to be safe but no sign of any issues after 7-8 years. Can also put a section of heat shield on the line if thats a concern but ive never had any heat related issues with fuel.

I have filters, one bigger tanksinc right after the tank then just use the marine screen type right before the carb, cliffs AN fitting uses the high flow marine screen type, im sure you can use the factory pleated paper type too but the marine filter is supposed to flow better. I have checked both filters a couple times after years of use and the carb one is always spotless and so is the bigger one but it has a brass element so harder to see if there are any small specs in it, looks totally clean to me, i do have a new tank so no debris to get churned up. I dont have or feel the need for any other inline filters.

Heres a pic just to show the carb AN fitting & how the line is ran, i have since shortened the line a bit & now run a regulator for when I want to dial the 1100 pump up to a higher psi for track use but a regulator shouldnt be needed for most carbs with the 550 pump since its set at ~7psi.
Attached Thumbnails
Click image for larger version

Name:	IMG_2771.jpg
Views:	133
Size:	77.9 KB
ID:	622385  

The Following User Says Thank You to 78w72 For This Useful Post:
  #3  
Old 10-28-2023, 09:52 AM
Formulajones's Avatar
Formulajones Formulajones is offline
Ultimate Warrior
 
Join Date: Jan 2012
Posts: 11,934
Default

I've done 1/2" steel line from pump to carb on some installs. It fits and works. Just a little tedious and time consuming but it all is really.

__________________
2019 Pontiac Heaven class winner

https://youtu.be/XqEydRRRwqE
The Following User Says Thank You to Formulajones For This Useful Post:
Reply

Thread Tools
Display Modes

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 03:27 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017