AOAI Forums: radiator hose numbers - AOAI Forums

Jump to content

radiator hose numbers

#1 User is offline   sawczak Icon

  • AOAI Forum Member
  • Add as Friend
  • PM this member
  • Group: AOAI Forum Members
  • Posts: 5
  • Joined: 11-March 10
  • My Avanti:1979 RQB2924

Posted 01 June 2010 - 09:09 PM

Does anyone happen to know what the upper and lower radiator hose numbers are for a 1979 Avanti II?

As always thanks for your help!
Steve
0
  • +
  • -

#2 User is offline   WayneC Icon

  • AOAI Forum Member
  • Add as Friend
  • PM this member
  • Group: AOAI Forum Members
  • Posts: 168
  • Joined: 04-December 04
  • Location:California
  • Interests:Avanti's, Corvettes, Jaguars

Posted 02 June 2010 - 01:52 PM

I'd like that info, as well, for my 1971.

I recall that I had a heck of a time a few years back trying to fit some hoses I had in storage that I thought were the correct ones for my 1971 Avanti, but I couldn't get either of them to fit. Those numbers were 1700929 and 1701855xn85. I think #1701855xn85 was supposed to be the correct lower hose, but I was unable to wrestle it onto the outlets, and it interfered with the tubes at the front of my fuel pump; I'm pretty sure I got the hoses from Nostalgic Motors. My old lower hose was a cobbled hose made of 2 shorter hoses joined by a short length of aluminized tailpipe to guard against the hose getting cut by the alternator belt (it actually was the hose that came on the car, but I had added the aluminized tube many years back when the belt had eventually worn through the hose and caused a leak). I ended up taking my old cobbled hose to a "Car Quest" parts store that allowed me to browse through their stock of hoses, and I finally settled on a #20812, which has a 1 3/4" diameter throughout. I then cut some length off of each end to wind up with a hose that worked. Another hose that looked as though it might have worked was their #20957, but I was concerned that hose would not clear the alternator belt because it lacked an offset near one end that the more expensive #20812 did have.
I'm attaching a word file that has a photo of the hose I used, with a line superimposed on it that I thought would be the shape of the ideal hose for that application.

Don't forget to put the spring inside that lower hose to keep it from collapsing under vacuum.

Attached thumbnail(s)

  • Attached Image

This post has been edited by WayneC: 02 June 2010 - 02:05 PM

0
  • +
  • -

#3 User is offline   MikeValent Icon

  • AOAI Forum Member
  • Add as Friend
  • PM this member
  • Group: AOAI Forum Members
  • Posts: 60
  • Joined: 04-July 07
  • Gender:Male
  • Location:Pompano Beach, FL
  • Interests:83 Avanti, 89 Bayliner 26' Ciera with a GMPP HT383, learning ice skating, plus other pursuits that are equally absurd for a man of my age.
  • My Avanti:1983 12AAV1232D1003771

Posted 02 June 2010 - 05:33 PM

On my 83, NAPA 7370 (lower hose) fits almost perfectly without any cutting. I did have to re-use the insternal spring from the old hose. My upper hose(s) begin with a sloppily cut slightly curved hose section from radiator to filler cap piece, then a "straight" ribbed hose from there to the engine.
0
  • +
  • -

#4 User is offline   Bob Fouts Icon

  • AOAI Forum Member
  • Add as Friend
  • PM this member
  • Group: AOAI Forum Members
  • Posts: 33
  • Joined: 14-August 03
  • Gender:Male
  • Location:Escanaba MI
  • Interests:cars, boating fast women

Posted 03 June 2010 - 09:03 PM

On my 85 I bought Gates #20627 lower hose which was designed for a Ford Bronco 66-77 and fit my Avanti perfectly with no modification.

Bob Fouts
0
  • +
  • -

Currently viewing all posts. Change threshold?

Share this topic:


1 User(s) are reading this topic
1 members, 0 guests, 0 anonymous users

  1. silverstude